Fresno City Council
August 15, 2024

Van Ness Avenue Transmission Grid Main Project Page 1 Project Plan Amendments – CEQA IS/MND Addendum

MEMORANDUM
To: Robert A. Diaz
Project Manager
City of Fresno Capital Projects Department
747 R St., 2nd Floor
Fresno, CA 93721
Date: 02/23/2024
State Clearinghouse Number#: 2022020073

From:

Michael Gennaro
Environmental Specialist
Blair, Church & Flynn Consulting Engineers
451 Clovis Avenue
Clovis, CA 93612

Subject: Van Ness Avenue Transmission Grid Main Project – Project Plan Amendments, Water Transmission Grid Main Extension CEQA Mitigated Negative Declaration Addendum
Assessment for Possible Changes of Project Environmental Impacts Memorandum

Introduction
In May 2022, the City of Fresno (“City”) prepared an initial study and a mitigated negative declaration (“IS/MND”) for the construction of 0.55 miles (2904 ft) of replacement water transmission grid main (TGM) pipelines within Van Ness Avenue between Divisadero Street and Merced Street in Downtown Fresno and within Amador St between Fulton/Van Ness Alley and Van Ness Avenue (“the Project”).

The City is now planning to approve updated Project plans with the addition of water TGM pipelines within E Stanislaus Street from Van Ness Avenue to L St (362 ft) and within L Street from E Stanislaus Street to Calaveras Street (489 ft) for a total of approximately 851 ft of additional water mains. Amendment Plans also include a revision to reduce the limits of water TGM pipelines to be replaced in Van Ness Avenue between Divisadero St. and Stanislaus St., resulting in a revised project TGM pipeline total of approximately 2,893 ft (“Amendment Plans”).

This Addendum to the IS/MND has been prepared pursuant to Title 14, Section 15164 of California Code of Regulations.

Applicability and Use of an Addendum
Under CEQA, lead agencies must conduct an evaluation of proposed changes to a project in order to determine whether further environmental analysis is required. (Pub. Resources Code § 21166; CEQA Guidelines, § 15162.) Once an EIR or mitigated negative declaration has been completed for a project, a lead agency may not require preparation of a subsequent environmental review unless the conditions set forth in Public Resources Code section 21166 and CEQA Guidelines section 15162 are satisfied.

Pursuant to CEQA section 21166, when a previous environmental review for a project has been prepared and approved, no subsequent or supplemental environmental review shall be required unless:
a) Substantial changes are proposed in the project which will require major revisions of the environmental impact report.
b) Substantial changes occur with respect to the circumstances under which the project is being undertaken which will require major revisions in the environmental impact report .

Van Ness Avenue Transmission Grid Main Project Page 2 Project Plan Amendments – CEQA IS/MND Addendum
c) New information, which was not known and could not have been known at the time the environmental impact report was certified as complete, becomes available.

CEQA Guidelines section 15162 further clarifies that:
a) When an EIR has been certified or a negative declaration adopted for a project, no subsequent EIR shall be prepared for that project unless the lead agency determines, on the basis of substantial evidence in the light of the whole record, one or more of the following:
1) Substantial changes are proposed in the project which will require major revisions of the previous EIR or negative declaration due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identifie d significant effects;
2) Substantial changes occur with respect to the circumstances under which the project is undertaken which will require major revisions of the previous EIR or negative declaration due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects; or 3) New information of substantial importance, which was not known and could not have been known with the exercise of reasonable diligence at the time the previous EIR was certified as complete or the negative declaration was adopted, shows any of the following:

A) The project will have one or more significant effects not discussed in the previous EIR or negative declaration;
B) Significant effects previously examined will be substantially more severe than shown in the previous EIR;
C) Mitigation measures or alternatives previously found not to be feasible would in fact be feasible and would substantially reduce one or more significant effects of the project, but the project proponents decline to adopt the mitigation measure or alternative; or
D) Mitigation measures or alternatives which are considerably different from those analyzed in the previous EIR would substantially reduce one or more significant effects on the environment, but the project proponents decline to adopt the mitigation measure or alternative.
b) If changes to a project or its circumstances occur or new information becomes available after adoption of a negative declaration, the lead agency shall prepare a subsequ ent EIR if required under subdivision (a). Otherwise the lead agency shall determine whether to prepare a subsequent negative declaration, an addendum, or no further documentation. c) Once a project has been approved, the lead agency's role in project approva l is completed, unless further discretionary approval on that project is required. Information appearing after an approval does not require reopening of that approval. If after the project is approved, any of the conditions described in subdivision (a) occurs, a subsequent EIR or negative declaration shall only be prepared by the public agency which grants the next discretionary approval for the project, if any. In this situation no other responsible agency shall grant an approval for the project until the subsequent EIR has been certified or subsequent negative declaration adopted.

If none of the conditions set forth in CEQA Guidelines section 15162(b) allowing a lead agency to prepare a subsequent negative declaration are met, CEQA Guidelines section 15164 authorizes the lead agency Van Ness Avenue Transmission Grid Main Project Page 3 Project Plan Amendments – CEQA IS/MND Addendum
to prepare an addendum to the previously approved negative declaration. In relevant part, CEQA Guidelines section 15164 states:
b) An addendum to an adopted negative declaration may be prepared if only minor technical changes or additions are necessary or none of the conditions described in section 15162 calling for the preparation of a subsequent EIR or negative declaration have occurred.

Based on the proposed Amendment Plans, no substantial changes are being made to the proposed Project. The Project plans approved by the IS/MND will remain the same, except for the addition of approximately 851 ft of analogous water TGM construction in neighboring Project areas in Downtown Fresno. The proposed Amendment Plans will comply with all mitigation measures identified in the IS/MND.

Therefore, the physical effects on the environment are the same. Based on these circumstances, the modified Project does not trigger any of the circumstances that would require preparation of a subsequ ent EIR or negative declaration under Public Resources Code section 21166 or CEQA Guidelines section 15162, as further set forth in this Addendum.

Description of Proposed Project:

The Project description remains the same as that described on Page 4 of the attached IS/MND (Attachment 4), except for the addition of new water TGM construction areas within E Stanislaus Street from Van Ness Avenue to L St (362 ft) and within L Street from E Stanislaus Street to Calaveras Street (489 ft).

Environmental Impacts Associated with the Modified Project:

Changed Conditions
The proposed Amendment Plans would be a small addition of construction of water TGM. These proposed plans are analogous in scope and Project land use as the original IS/MND plans, the Project impacts would remain the same as those identified in the attached IS/MND in the absence of any changed conditions in the environment.

The original IS/MND identified two CEQA Appendix G Sections (Cultural Resource and Hazards and Hazardous Materials) that require mitigation measures based on the possible presence of underground cultural resources or environmental hazards. The original IS/MND identified mitigation measures to screen for, and react to, any possible identified underground cultural resources or environmental hazards .

Therefore, the City will complete the same mitigation measures identified in the IS/MND to screen for, and react to, any potentially present underground cultural resource/hazards.

Based on its review of the modified Project and its familiarity with the Project environment, the City has determined that the environment in the Project location has not changed in a way that would result In previously unexamined environmental impacts from the Project or increase in the severity of any of the previously examined environmental impacts.

The environmental setting of the additional proposed site areas for the Amendment Plans were reviewed to compare new proposed project site areas to the original Project site areas that were assessed in the original IS/MND. All section from the CEQA Statutes and Guidelines in Appendix G were reviewed to identify if the addition of new areas: 1) are significantly different than the land use and/or conditions, and/or 2) new project site areas would increase the scale of the Project to trigger additional environmental requirements or cause new significant environmental impacts. The table below has been prepared to Van Ness Avenue Transmission Grid Main Project Page 4 Project Plan Amendments – CEQA IS/MND Addendum
provide an assessment on if a section requires re-analysis to determine if the addition of the Amendment Plans would cause changes to the environmental impacts identified in the original Project IS/MND.

Assessment of Changes of Environmental Impact
Appendix G
Section:

Potential
Significant
Changes to
ISMND
Environmental
Impact?:

Reasoning:

Aesthetics No Amendment Plans are also all underground with the exception of new fire hydrants.

Agricultural and
Forestry Resources
No Amendment Plans are also not near Agricultural or Forestry Resources
Air Quality No Amendment Plans are a small addition of construction activities to a Project that was analyzed as significantly below San Joaquin Valley Air Pollution Control Districts thresholds for criteria pollutants.

Biological Resources No Amendment Plans are in the same highly urbanized/downtown land use.

Cultural Resources Yes Cultural resources expertise is required to determine if the additional Amendment Plan areas are near any potential
cultural resources that would require additional mitigation measures than included in IS/MND.

Energy No Amendment Plans would relocate water main utilities or provide service for other Projects approved by the City of Fresno.

Geology and Soils No Amendment Plans are in a location with the same earthquake, landslide, soil erosion, and soil qualities as ISMND.

Greenhouse Gas
Emissions
No Amendment Plans would relocate water main utilities or provide service for other Projects approved by the City of Fresno.

Hazards and
Hazardous Materials
Yes Hazardous material expertise is required to determine if the additional Amendment Plan areas are near any potential
hazards that would require additional mitigation measures than included in IS/MND.

Hydrology and Water
Quality
No The original IS/MND determined that the Project would require a SWPPP. The addition of the small Amendment
Plans will add a small area of soil disturbance compared to the original Project.

Van Ness Avenue Transmission Grid Main Project Page 5 Project Plan Amendments – CEQA IS/MND Addendum
Assessment of Changes of Environmental Impact
Appendix G
Section:

Potential
Significant
Changes to
ISMND
Environmental
Impact?:

Reasoning:

Land Use and
Planning
No The Amendment Plans will not alter land use, as identified in the original IS/MND.

Mineral Resources No The Amendment Plans will not be near any mineral resources, as identified in the original IS/MND.

Noise No The scope of work and land use of the Amendment Plans are the same as identified in the IS/MND.

Population and
Housing
No Amendment Plans would relocate water main utilities or provide service for other Projects approved by the City of Fresno.

Public Services No Amendment Plans would improve public services as identified in the original IS/MND.

Recreation No Amendment Plans would not modify or affect recreation resources as identified in the original IS/MND.

Transportation/Traffic No Amendment Plans would not affect transportation/traffic more than what was identified in the original IS/MND due to temporary traffic controls.

Tribal Cultural
Resource
Yes The City of Fresno will complete tribal notification per AB 52 and respond to any comments received from tribes.

Utilities and Service
Systems
No Amendment Plans would relocate water main utilities or provide service for other Projects approved by the City of Fresno.

Wildfire No The wildfire risk for the Amendment Plan area is the same as identified in the original IS/MND.

Mandatory Findings
of Significance
No Amendment Plans would relocate water main utilities or provide service for other Projects approved by the City of Fresno.

New Information
The City retained Blair, Church & Flynn Consulting Engineers who subcontracted with Rincon Consultants to prepare a Revised Hazardous Materials Survey in accordance with the Appendix G Hazards and Hazardous Materials Question d., included in Attachment 1. The survey, which included an online resources assessment, a historical map review, and city directory review, found information on Van Ness Avenue Transmission Grid Main Project Page 6 Project Plan Amendments – CEQA IS/MND Addendum
potential hazardous material for new Project areas that is analogous to the information discovered from the original IS/MND Hazardous Materials Survey. Therefore, the City has investigated that there is no available new information for the new Amendment Plan areas and will continue to complete the mitigation measures for hazards and hazardous materials identified in the original IS/MND and the Revised Hazardous Materials Survey included in Attachment 2.

The City retained Blair, Church & Flynn Consulting Engineers who subcontracted Rincon Consultants to prepare a Revised Cultural Resources Assessment in accordance with the Appendix G Cultural Resource, included in Attachment 2. The assessment, which included a cultural records search and a Sacred Lands File search, found information on potential cultural resources in the Plan Amendment areas that is analogous to the information discovered from the original IS/MND Cultural Resources Assessment.

Therefore, the City has investigated that there is no available new information for the new Amendment Plan areas and will complete the mitigation measures for cultural resources identified in the original IS/MND and the Revised cultural Resources Assessment included in Attachment 3.

The City has completed notification and consultation with representatives of California Native American tribes that are traditionally and culturally affiliated with the geographic Project area, commensurate with AB 52 requirements. On January 23rd, the City sent letters on City of Fresno letterhead via email (with read receipt requested) to all representatives on the Native American Contact List published by the Native American Heritage Commission (NAHC) on November 15, 2023. No responses were received aft er the 30-day noticing period, therefore the City has completed its AB 52 consultation requirments for the Project changes by the Project plan amendments. The completed AB 52 tribal noticing sheet is included in Attachment 4.

Conclusions:

The City has evaluated that the Project plan amendments would not change the environmental impacts of the Project as identified in the original Project IS/MND. The City has investigated if additional Project areas would cause new or significantly increased environmental impacts for CEQA Appendix G sections that have already been identified as requiring mitigation measured, and found that the mitigation measures adopted in the original IS/MND would be sufficient to mitigate significant environmental impacts for the addition of the Project plan amendments. Therefore, the City may decide to approve an addendum to the original Project IS/MND to approve the Project plan amendments.

Retained Mitigation Measures:

A full description of the Mitigation Measures below can be found in the original IS/MND in Attachment 5.

Hazards and Hazardous Materials:
• MM HAZ-1: Pre-construction Soil Sampling, and
o MM HAZ-2: Soil Management Plan for Impacted Soil (as needed based on MM HAZ -1 results) and
o MM HAZ-3 (Remediation) (as needed based on MM HAZ-1 results).

Cultural Resources:
• MM CUL-1: Worker’s Environmental Awareness Program,
• MM CUL-2: Archaeological Monitoring and Discovery Plan, and • MM CUL-3: Archaeological Monitoring.

Van Ness Avenue Transmission Grid Main Project Page 7 Project Plan Amendments – CEQA IS/MND Addendum
If you have any questions regarding the preparation of this CEQA Mitigated Negative Declaration Addendum memorandum, please do not hesitate to contact Blair, Church & Flynn Environmental Specialist Michael Gennaro at (559) 326-1400 or by email at [email protected].

Sincerely,
Michael Gennaro, QSD, CPESC
Environmental Specialist

Attachments

Attachment 1 Revised Project Site Location Maps

Attachment 2 Revised Hazardous Materials Survey – QEQA Question d.

Attachment 3 Supplemental Cultural Resources Assessment

Attachment 4 Completed AB 52 Tribal Noticing Tracking Sheet

Attachment 5 Van Ness Avenue Water Transmission Grid Main Initial Study and Mitigated Negative Declaration

Van Ness Avenue Transmission Grid Main Project Page 8 Project Plan Amendments – CEQA IS/MND Addendum
Attachment 1

Revised Project Site Location Maps
PROJECT SITESCALE: 1"=500'LOCATION MAPNOT TO SCALE
ATTACHMENT 1 - LOCATION MAPS11
Drawing: P:\221-0232\Site\Exhibits\Environmental\221232_Environmental_SiteMap_Addendum_Attachment1.dwg; Attachment 1 Plot by: zsmith Feb 23, 2024 - 3:02pmSCALE: AS NOTEDOF SHEETSSHEET NO.CH. BYDR. BYDATE CONSULTANTSITE LOCATION:FIGURE:CITY OF FRESNOVAN NESS AVENUEWATER MAIN REPLACEMENTMGJM10-18-213 VAN NESS AVE. FROM DIVISADERO ST. TO MERCED ST. | FRESNO, CA | 36.74003, -119.79511 180
41 99

PROJECT SITE

DIVISADERO STTUOLUMNE STSTANISLAUS STCALAVERAS STSAN JOAQUIN STAMADOR ST "L" ST"M" ST"N" ST

FULTON STBROADWAY ST

SACRAMENTO ST

MERCED ST
"H" ST VAN NESS AVE
SYMBOL LEGEND:PROJECT BOUNDARYPROPOSED 12" WATER TRANSMISSION GRID MAINPROPOSED 16" WATER TRANSMISSION GRID MAINEXISTING WATER TRANSMISSION GRID MAIN 2-23-241
Van Ness Avenue Transmission Grid Main Project Page 9 Project Plan Amendments – CEQA IS/MND Addendum
Attachment 2

Revised Hazardous Materials Survey – CEQA Question d.

Rincon Consultants, Inc.
7 0 8 0 N o r t h W h i t n e y A v e n u e
S u i t e 1 0 1
F resno , Ca lifo rnia 9 3720

559 2 2 8 9 9 2 5

i n f o @ r i n c o n c o n s u l t a n t s . c o m
w w w . r i n c o n c o n s u l t a n t s . c o m
E n v i r o n m e n t a l S c i e n t i s t s P l a n n e r s E n g i n e e r s September 29, 2023
Project No. 21-11580
Michael Gennaro, Environmental Specialist
Blair, Church & Flynn
451 Clovis Avenue, Suite 200
Clovis, California 93612
Via email: [email protected]
Subject: Revised Hazardous Materials Survey - CEQA Question d.

Van Ness Avenue Water Transmission Grid Main 221-0232 Project Fresno, Fresno County, California
Dear Mr. Gennaro:

Blair, Church & Flynn Consulting Engineers retained Rincon Consultants, Inc. (Rincon) to complete a hazardous materials survey for the Van Ness Avenue Water Transmission Grid Main 221-0232 Project (Project) in the City of Fresno, Fresno County, California. This letter report documents the results of the survey, which was conducted in support of California Environmental Quality Act (CEQA) review. Our survey consisted of an online resources assessment, a historical map and city directory review, as well as a pedestrian field survey in 2021. The Project is subject to CEQA and local regulations and the City of Fresno (City) is the lead agency under CEQA.

Project Location
The Project is located in Fresno, Fresno County, California, and lies within Section 4 of Township 14 south, Range 20 east of the Fresno South, California (USGS 2021) topographic quadrangle (Figure 1, Attachment 1). The Project site is bound by Divisadero Street to the northwest, Merced Street to the southeast, commercial development between L Street and M Street to the northeast, and commercial development between Van Ness Avenue and Fulton Street to the southwest (Figure 2, Attachment 1).

The Project location is as follows:
▪ Along Van Ness Avenue between Divisadero Street and 100 feet southwest of Stanislaus Street ▪ Along Stanislaus Street from Van Ness Avenue northeast to L Street ▪ Northwest along L Street to the intersection of Calaveras Street ▪ 200 feet along Amador Avenue from Van Ness Avenue to 200 feet southwest.

The Project environmental limits occur within the following areas:
▪ Van Ness Avenue right-of-way to approximately 200 feet beyond the right-of-way on both sides of the road, between Divisadero Street and 100 feet southwest of Stanislaus Street ▪ L Street right-of-way to approximately 200 feet beyond the right-of-way on both sides of the road, between Calaveras Street and 150 feet southeast of Stanislaus Street ▪ Stanislaus Street right-of-way from approximately 200 feet southwest of Van Ness Avenue to L Street
Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

▪ The Phase II Plan amendment includes the area between the Calavaeras Street and East Stanislaus Street rights-of way to approximately 150 feet northeast of L Street and 150 feet southeast of East Stanislaus Street
Project Description
The Project consists of designing a Water Transmission Grid Main (TGM) in Van Ness Avenue, Stanislaus Street, Amador Avenue, and L Street within Downtown Fresno. Currently, there is a small water main serving the area that runs between Fulton Street and Van Ness Avenue. The City proposes to update the system by designing, constructing, and installing a water transmission main within Van Ness Avenue between Divisadero Street and 100 feet southwest of Stanislaus Street. The Project consists of constructing a Water TGM extension along East Stanislaus Street to L Street and along L Street to the Calaveras Street intersection. The Project also includes construction of a Water TGM for 200 feet along Amador Avenue from Van Ness Avenue to 200 feet southwest.

Our survey was completed for both Phase I and II of the Project, which is being considered as a single Project. It is our understanding that Phase I would include construction of the proposed TGM within Van Ness Avenue between Amador and Calaveras Streets, and within Amador Street from the alley to Van Ness Avenue. Phase II would include construction of the proposed TGM within Van Ness Avenue between Divisadero and Amador Streets, and between Calaveras and 100 feet southwest of Stanislaus Street. Construction is anticipated to occur from June 2024 to October 2025, which includes Phase I and Phase II.

Hazardous Materials Survey – CEQA Question d
d. Would the project be located on a site that is included on a list of hazardous material sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significan t hazard to the public or the environment?
Although the Project (paved roads where disturbance is proposed) is not specifically listed as a Department of Toxic Substances (DTSC) Cortese hazardous material site compiled pursuant to Government Code Section 65962.5 (DTSC 2023b), the following two adjacent properties meet the “Cortese List” requirements, as determined by the California Environmental Protection Agency (CalEPA 2023).
▪ Former gasoline station and LUST cleanup site located at 1506 Van Ness Avenue ▪ Former auto dealership and LUST cleanup site at 2201 Stanislaus Street The following resources were also reviewed to determine if hazardous materials may be present at the Project site:

United States Environmental Protection Agency
▪ Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS)/Superfund Enterprise Management System (SEMS)/Envirofacts database search (United States Environmental Protection Agency [USEPA] 2023a)
Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

Department of Toxic Substances Control
▪ Online EnviroStor database for hazardous waste facilities or known contamination sites (DTSC 2023a)
▪ Online Cortese List of Hazardous Waste and Substances Sites (DTSC 2023b) California State Water Resources Control Board
▪ Online GeoTracker database search for leaking underground storage tanks (LUST) and other cleanup sites (State Water Resources Control Board [SWRCB] 2023a) ▪ Per- and polyfluoroalkyl substances (PFAS) Investigation online Public Map Viewer (SWRCB 2023b) ▪ 2019 Statewide Drinking Water System Quarterly Testing Results online Public Map Viewer/GeoTracker PFAS Map (SWRCB 2023c)
Nationwide Environmental Title Research
▪ Online historical aerial photographs and topographic maps dated from 1923 through 2018 (National Environmental Title Research [NETR] 2023)
California Department of Conservation Geologic Energy Management Division ▪ California Department of Conservation Geologic Energy Management Division (CalGEM) online Well Finder
U.S. Department of Transportation
▪ National Pipeline Mapping System (NPMS) online Public Map Viewer (U.S. Department of Transportation [USDOT] 2023)
Information obtained from these resources is described below. Additionally, Rincon completed a reconnaissance of the Project site on October 23, 2021. A summary of our onsite observations is included below.

Online Database Reviews
USEPA SEMS Database Review
The Project (paved roads where disturbance is proposed) and adjacent properties are not listed in the SEMS database.

DTSC EnviroStor and SWRCB GeoTracker Database Review
Project
A review of the SWRCB GeoTracker and DTSC EnviroStor databases indicates that the Project along Van Ness Avenue, Stanislaus Street, and L Street is not associated with an unauthorized release case.

However, two closed LUST Cleanup sites are located within the environmental limits defined for the Project. A historical Chevron gasoline service station and closed LUST Cleanup site is located at 1506 Van Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

Ness Avenue, and a closed LUST Cleanup site is located at 2201 Stanislaus Street (Figure 3, Attachment 1). The details of these closed LUST cases are summarized below:

Chevron #9-0909 – 1506 Van Ness Avenue, Fresno, California. This site is located on the northern corner of the intersection of Van Ness Avenue and East Stanislaus Street. Based on the Project Description, the LUST site is included as part of the Project environmental limits. The site is reported as a LUST site with cleanup status indicated as “Completed – Case closed as of 8/16/1992.” The contaminant of concern was reported as gasoline and the media affected was reported as soil. The County of Fresno reportedly issued a Certification of Response Action letter on August 6, 1992, which essentially granted no further action related to the LUST case. A copy of the Case Closure Summary was not available for review; however a Certification of Response Action issued by the County of Fresno and other site documents were reviewed online.

Based on a January 22, 1992 Site Characterization Investigation Report prepared on behalf of Chevron U.S.A., subsurface investigations at the site commenced in 1990 during underground storage tank (UST) removal/replacement activities. Soil containing gasoline was detected in the tank pit as well as in the product line trench. Additional excavation was performed to remove the contaminated soil and confirmation sampling results indicated that benzene, toluene, ethylbenzene, xylenes (BTEX) and total petroleum hydrocarbons as gasoline (TPH-g) were below laboratory reporting limits (non-detect).

However, the petroleum impacts in the tank pit were not delineated. Therefore, four soil borings were advanced to 45 feet below ground surface (bgs). Per the cover letter for the site investigation report, “All soil samples were non-detect with one exception of B-1 at 15’(feet) depth containing TPH-g of 15 parts per million (ppm). Groundwater is estimated at approximately 80 feet below grade. With this finding and previous sampling results, and the intent use of this site as a gas station, Chevron proposes no further actions” (Krazen & Associates, Inc. 1992, Attachment 2).

Based on the results of the 1992 subsurface investigation and closed case status, it doesn’t appear that contamination associated with the historical gasoline release would have impacted soil beneath parts of the Project along or fronting Van Ness Avenue. Additionally, the USTs were located on the east side of the gasoline station site, adjacent to Stanislaus Street. This site remained in use as a gasoline service station through at least 2014 with no other reported releases.

A Place for You Foundation – 2201 Stanislaus Street, Fresno, California. This site is located on the north side of the intersection of L Street and East Stanislaus Street and is reported by GeoTracker as a LUST site with cleanup status indicated as “Completed – Case closed as of 8/9/1996.” The contaminant of concern was reported as “waste oil/motor/hydraulic/lubricating” and the media affected was reported as “under investigation.”
Documentation pertaining to this site was available for online review through the Fresno County Department of Public Health Environmental Health Document Portal (Fresno County 2023) (Attachment 2). The site formerly operated as a car dealership and auto repair facility since at least 1950, which operated 14 hydraulic lifts and two waste oil USTs (500-gallon and 1,000-gallon). The USTs were removed under regulatory oversight in March 1994; observations and the results of confirmation samples indicated a release to soil had occurred from the 1,000-gallon waste oil UST located adjacent to L Street. Previous records reviews revealed that a historical UST was located “on the west side of the building next to the curb”, which was reportedly removed in 1970, with no confirmation soil samples collected (Emcon Associates [Emcon] 1991). In addition, Emcon’s records reviews identified a permit application dated from 1948 for the installation of a 550-gallon waste oil UST. In 1990, Emcon completed a soil investigation, under oversight from Fresno County Environmental Health Department, Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

to evaluate potential impacts from the hydraulic lifts and historical operations at the site. Total recoverable petroleum hydrocarbons (TRPH) were detected in 12 of the 14 soil samples collected from 10 feet bgs at concentrations ranging from 56 to 25,000 ppm. There were no other records available online.

More recently, the former site structures have been removed and the site is currently developed as a parking lot. However, it is unknown whether, or to what extent, soil impacts were remediated. Based on the proximity to the Project, there is a potential for contamination associated with this release site to impact soil along parts of L Street within the Project.

Nearby Sites
Fresno County Credit Union Property – 2211 Merced Street, Fresno, California. This site is located approximately 350 feet east of the Project along the north side of Merced Street. The property is reported by GeoTracker as a LUST site with cleanup status indicated as “Completed – Case closed as of 5/28/2002.” The contaminant of concern was reported as gasoline and the media affected was reported as soil.

Documentation pertaining to this site was available for online review through the Fresno County Department of Public Health Environmental Health Document Portal (Fresno County 2023). Three additional USTs were discovered at this site during removal of a 400-gallon waste oil UST in November 2019, which included 55-gallon kerosene and solvent tanks and a waste oil UST (unknown size). A letter from the County of Fresno Department of Public Health, dated February 14, 2020, references a Sampling and Analysis Report (Kroeker, Inc. dated January 10, 2020) stating that “soil around the former UST was not significantly impacted to warrant further investigation” and no further action was required at the site. Based on the distance and the nature of the release to shallow soil, it is unlikely that contamination associated with this site will impact the Project.

Regional Groundwater Impacts
UNIVAR – 1152 G Street, Fresno, California. This site is located approximately 1,600 feet south- southwest of the southern extent of the environmental limits of the Project (intersection of Van Ness Avenue and Merced Street). The site is reported by GeoTracker as a Cleanup Program Site with cleanup status indicated as “Open – Verification Monitoring as of 3/16/2022.” The contaminant of concern is reported as tetrachloroethylene (PCE) and the media affected is reported as “aquifer used for drinking water supply.” There are a significant number of offsite groundwater monitoring wells associated with the UNIVAR property and the closest groundwater monitoring well (T2-3) is located approximately 185 feet southwest of the Project, measured from the intersection of Van Ness Avenue and Tuolumne Street. Based on the July 2021 groundwater monitoring report, depth to groundwater ranged from approximately 94 to 97 feet bgs and groundwater flow was generally to the west-southwest (away from the Project) (ERM-West, Inc. 2021, Attachment 2). Historical groundwater sampling data for the well indicate that PCE was detected in groundwater at a concentration of 0.95 micrograms per liter (µg/L) on 11/11/2014 and at a concentration of 0.55 µg/L on 5/23/2017.

According to the First Half 2021 Semiannual Groundwater Monitoring Report prepared by ERM-West, Inc. and dated July 15, 2021, the site is approximately 1.25 acres in in size and formerly housed a brick warehouse with loading docks and associated parking which were demolished in 2016. From approximately 1965 to 1986, Van Waters & Rodger (VW&R) leased the site and used the northeastern corner to store PCE in an aboveground storage tank (AST), which has since been removed. The site is Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

currently vacant and falls within the footprint of the proposed California High Speed Rail Authority (HSRA) development. HSRA took possession of the site through eminent domain in September 2015 and site facilities were demolished in 2016. HSRA continues acquiring and demolishing properties along G Street, including the former Lamoure’s Cleaners (dry-cleaning) site. The July 2021 groundwater monitoring report includes a summary of the investigation and remediation history. In brief, PCE was initially reported in soil samples collected from soil borings near the former AST in 1994 as part of a Phase I Environmental Site Assessment and soil investigation. Soil, groundwater, and soil vapor investigations and remediation followed. A soil vapor extraction (SVE) system ran continuously from 2008 through January 2020, then was powered down due to malfunctions. Between late January and March 2020, the SVE system operated intermittently. The SVE system was restarted in March 2021 and operated until June 2022, when the soil vapor monitoring and extraction wells were destroyed and the SVE system was decommissioned. Replacement of the SVE system is currently pending.

In 2015, an in-situ chemical oxidation (ISCO) pilot test was conducted. In December 2015, the Central Valley Regional Water Quality Control Board (RWQCB) issued an order for the full-scale implementation of the ISCO remedy. PCE concentrations have significantly decreased to less than 100 µg/L to non-detect in shallow groundwater as a result of ISCO activities. The highest remaining PCE concentrations are located north to northwest of the release site and downgradient of Lamoure’s Dry Cleaners (e.g., well MW15S [84.7 µg/L]). Based on the success of the injections conducted to date, no additional injection activities are planned.

Based on the PCE concentrations detected in the groundwater monitoring well T2-3 (closest to the Project), depth to groundwater (over 90 feet bgs), and downgradient location of the plume, the UNIVAR groundwater plume is not expected to impact the Project.

Former Lamoure’s Cleaners – 1304 G Street, Fresno, California. This site is located approximately 1,700 feet southwest of the Project (intersection of Van Ness Avenue and Merced Street). The site is reported by GeoTracker as a Cleanup Programs Site with cleanup status indicated as “Open – Remediation as of 11/29/2021.” The contaminant of concern is reported as PCE and the media affected is reported as “aquifer used for drinking water supply, indoor air, soil, soil vapor, well used for drinking water supply.” According to the Supplemental Remedial Investigation (Quarterly Monitoring Report [QMR]) for the California High Speed Train locations FB-10-0121-1 and FB-10-0121-01, Lamoure’s Cleaners, 1304 G Street, Fresno, prepared by Blackburn Consulting (Blackburn) dated March 9, 2020, Blackburn reported that PCE, chloroform, trichloroethylene (TCE), and cis-dichloroethene (cis-DCE) are present at elevated concentrations in soil gas. According to the QMR,
“PCE concentrations at the Lamoure’s Cleaners site are elevated at the former dry-cleaning facility from near surface to approximately 90 ft bgs. It was reported that the PCE concentrations detected exceed the DTSC commercial/industrial SL and the RWQCB commercial/industrial ESL by four to five orders of magnitude. Further analysis would be necessary to establish the level of risk that PCE concentrations, particularly in near-surface soil, may represent to site workers and the public. The deepest PCE vapor concentrations appear to exist in equilibrium with nearby groundwater impacts at approximately 100 feet bgs, with the highest PCE concentrations appearing between 30 and 70 feet bgs. In addition to a PCE release from dry cleaning operations, groundwater appears to have transported PCE and other volatile organic compounds (VOCs) from the Univar site to FB-10-0121.

PCE vapor concentrations at off-site locations to the northwest and southeast (SV-10 and SV-11) are significantly lower than concentrations located on FB-10-0121. This indicates the source of PCE in the upper half of the vadose zone is from the former dry-cleaning operations at FB-10-0121.” Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

Regarding groundwater, the QMR states, “…maps indicate that groundwater in the site vicinity is approximately 100 feet below ground surface. Groundwater flows regionally to the southwest, but water supply wells may influence local flow directions.” Based on the downgradient location of the plume, groundwater impacts associated with the Former Lamoure’s Cleaners are not expected to impact the Project.

PFAS Database Review
Beginning in 2019, the California SWRCB sent assessment requirements to property owners of sites that may be potential sources of PFAS. These sites currently include select landfills, airports, chrome plating facilities, publicly owned treatment works facilities, Department of Defense (DoD) sites, and bulk fuel storage terminals and refineries. According to the SWRCB, “PFAS are a large group of human-made substances that do not occur naturally in the environment and are resistant to heat, water, and oil” (SWRCB 2023). There are 57 known classes of PFAS comprising hundreds of individual PFAS compounds that were, or still are, commercially produced. Only two PFAS compounds have undergone sufficient toxicological testing to have been assigned USEPA Health Advisory Levels: perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). Other PFAS compounds are transformed into PFOA and PFOS in the environment (USEPA 2023b).

Based on our August 31, 2023 review of the California Statewide PFAS Investigation online Public Map Viewer, there are no current chrome plating, airport, landfill, publicly owned treatment works, bulk fuel storage terminals and refineries, or DoD orders at any facilities listed as located within 0.5 mile of the Project.

Based on our August 31, 2023 review of the California 2023 Statewide Drinking Water System Quarterly Testing Results online Public Map Viewer, the closest City of Fresno drinking water well (Well 198 – RAW) is located near the intersection of N First Street and E McKenzie Avenue, approximately 1.1 miles northeast of the Project. PFOA) and PFOS were not detected above laboratory reporting limits in the most recent water sample collected from the well on 04/27/2023.

Historical Document Review
According to historical (1938) Thomas Bros. map of Fresno, California, an electric railroad was present along Stanislaus Street, including through the intersection of Van Ness Avenue.

Topographic Map Review
Topographic Maps were available through NETR for the following years: 1923, 1942, 1947, 1964, 1966, 1974, 1982, 2012, 2015, 2018, and 2021. Based on our review of these maps, it appears that downtown Fresno, including Van Ness Avenue, L Street, and cross streets had been constructed as early as 1923.

Structures are depicted fronting Van Ness Avenue and L Street on the 1923 and 1942 topographic maps.

The 1947 map depicts a church structure north of the intersection of Calaveras Street and Van Ness Avenue. The remaining topographic maps (from 1964 through 2021), depict the Project as ‘shaded’ which indicates development.

Historical Fire Insurance (Sanborn) Maps Review
Sanborn Maps were available through Environmental Data Resources (EDR) for the following years:
1885, 1888, 1898, 1906, 1918, 1919, 1948, 1950, and 1970. The maps were reviewed to evaluate Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

historical uses of properties along Van Ness Avenue, L Street, and cross streets. Sanborn Map coverage was not available for the central portion of the Project. Historical land uses that could potentially impact the subject property include agricultural land use, industrial land use, and commercial land use (i.e., gasoline service stations and historical cleaners).

It should be noted that Van Ness Avenue was formerly known as K Street in at least 1888 through 1906.

The 1888 and 1898 maps indicate primarily residential uses in the vicinity of the Project. The following historical property uses have the potential to have impacted the Project (Figure 3):
1906
▪ Kohlers Steam Laundry – 1322 K St., north of the intersection of K St. and Merced Street ▪ Auto facility – 1314 K St., west side of the intersection of K St. and Merced Street 1918
▪ Western Auto Electric Co. (auto repairing and battery recharging) – 1444 Van Ness Avenue ▪ Undertaker – 1459 Van Ness Avenue
▪ Superior Motor Co. (Garage) – 1427 Van Ness Avenue
▪ Gas & Oils, Tire Store, Tire Service – 1401-1413 Van Ness Avenue, west side of intersection of Van Ness and Tuolumne Street
▪ Auto Repair – 1347 Van Ness Avenue
▪ Auto Service – 1330 Van Ness Avenue
▪ Battery Service – 1416-1418 Van Ness Avenue
▪ Willy’s Overland Pacific Co. Auto Sales & Service – 1400-1406 Van Ness Avenue, northern corner of Van Ness and Tuolumne Street
▪ Vulcanizing & Auto Repairing – 1311 Van Ness Avenue
▪ Undertaker with leaded glass and glazing – 1360 Van Ness, eastern corner of Van Ness and Tuolumne
▪ Auto Repairing – Entire west side of intersection of Merced Street and Van Ness, 2027-2057 Merced Street
1948
▪ Gas & Oil station with greasing and auto washing – 1805 Van Ness Avenue, west side of the intersection of Amador Street and Van Ness Avenue
▪ Undertaker – 1762 Van Ness Avenue
▪ Used Auto Sales and auto service – 2015-2031 Stanislaus Street ▪ Tire Service businesses – 1413 and 1439 Van Ness Avenue ▪ Battery Service – 1444 Van Ness Avenue
▪ Battery Service – 1416-1418 Van Ness Avenue
▪ Gas & Oils, Tire Store, Tire Service – 1401-1413 Van Ness Avenue, west side of intersection of Van Ness and Tuolumne Street
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Van Ness Avenue Water Transmission Grid Main Project

▪ Auto Sales & Service – 1400-1406 Van Ness Avenue, north of the intersection of Van Ness Avenue and Tuolumne Street
▪ Auto Repair – 1347 Van Ness Avenue
▪ Auto Service – 1330 Van Ness Avenue
▪ Western Auto Supply Co. – 2030-2048 Merced Street
▪ Repairing and Auto Storage – 1510 and 1526 L Street and 2201 and 2223 Stanislaus Street, north side of the intersection of L Street and Stanislaus Street 1950
▪ Gas & Oil station with greasing and auto washing – 1800-1810 Van Ness Avenue, west side of the intersection of Amador Street and Van Ness Avenue [gone by 1970] ▪ Gas & Oil station with greasing building – 1810 Van Ness Avenue, north side of the intersection of Amador Street and Van Ness Avenue [gone by 1970]
▪ Undertaker – 1762 Van Ness Avenue
▪ Battery Service Station – 1444 Van Ness Avenue
▪ Battery Service Station – 1416-1418 Van Ness Avenue
▪ Used Auto Sales and auto service – 2015-2031 Stanislaus Street ▪ Tire Service centers – 1413 and 1439 Van Ness Avenue
▪ Tire Service Center with “Gas & Oils in Yard” – 1401-1413 Van Ness Avenue, west side of intersection of Van Ness and Tuolumne Street
▪ Auto Sales & Service – 1400-1406 Van Ness Avenue, north of the intersection of Van Ness Avenue and Tuolumne Street
▪ Repairing and Auto Storage – 1510 and 1526 L Street/2201 and 2222/2223 Stanislaus Street, north side of the intersection of L Street and Stanislaus Street 1970
▪ Undertaker – 1762 Van Ness Avenue
▪ Auto Electric Service store – 1740 Van Ness Avenue
▪ Auto Sales and Service – 1510 and 1526 L Street/2201 and 2223 Stanislaus Street, north side of the intersection of L Street and Stanislaus Street
▪ Pacific Telephone and Telegraph Building – 1429, 1445 and 1455 Van Ness Avenue and 2048 Stanislaus Street, south side of the intersection of Van Ness Avenue and Stanislaus Street ▪ Auto Storage and Used Auto Sales – northwest side of the intersection of M Street and Stanislaus Street
Aerial Photograph Review
Aerial photographs were available through NETR for the following years: 1957, 1962, 1972, 1984, 1998, 2002, 2005, 2009, 2010, 2012, 2014, 2016, 2018, and 2020. Based on our review of these images, it appears that Project has been densely developed as early as 1957. Based on the review of the 1957 through 1972 aerial photographs, several structures of varying sizes, vacant lots, and parking lots are Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

depicted along the Project, although individual uses of the structures cannot be determined. The structure occupied by the car dealership at 2201 Stanislaus Street (closed release site) was present in the 1984 photo and was removed by 1998. A gasoline station (former Chevron, discussed above) was located on the northern corner of the intersection of Van Ness Avenue and East Stanislaus Street, which is depicted on the historical aerial photographs through 2014. Increased commercial development is evident through 1998, and there is little variation observed on the aerial photographs from 2002 through 2014. A park or vegetated land is present on the east side of the intersection of Van Ness Avenue and East Stanislaus Street through 2014. However, by 2016 the park/vegetated land appears to have been redeveloped as an apartment complex. Redevelopment is evident on the west side of the intersection in 2016 (former Chevron gasoline station). Google Earth imagery of the Project in 2023 generally resembles 2016 through 2020 aerial photographs.

City Directory Review
City directory listings for the retail/commercial properties fronting Van Ness Avenue were available for review from 1922 through 2017 (in approximately 3 to 5-year intervals). Based on our review, it appears that historically, there was a significant number of notable industrial and auto-related occupants along the Project (Figure 4). Such facilities included, but are not limited to gasoline stations, auto repair facilities, battery facilities, clothes cleaners, and tire retailers as shown in Table 1.

Table 1 City Directory Industrial and Commercial Listings Figure 4
ID No. Address Use Year
1 1003 Divisadero Street Gas station 1932, 1937, 1942
2 1346 Fulton Street King Motor Sales Co. used cars 1927, 1932 3 1440 Fulton Street Lechlider M L used autos 1927
Stephenson W E auto 1932
Snow Mancil & Scott auto repairs 1937
Silva & Noel Garage 1942, 1947
4 1448 Fulton Street Lechlider M L used cars 1932, 1937 5 1502 Fulton Street Firestone Stores Tires/Retread Shop 1965, 1970 Ace Service Inc. Store No. 2 tires 1975, 1980
6 1526 Fulton Street Auto repair, auto electrician 1927 Auto repair, used cars 1932
Auto laundry, auto repair, auto body 1937
Auto laundry, auto repair 1942
Auto laundry, used cars, auto repairs 1947
Auto repair, used cars 1952
7 1533 Fulton Street Shehrian Karl clothes cleaner 1932 8 1560 Fulton Street Shell Oil Co. gas station 1927, 1932 9 1616 Fulton Street Walkup M C auto 1927
McClellan & Green auto repairs 1932
Erickson H A auto repair 1937
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Van Ness Avenue Water Transmission Grid Main Project

Figure 4
ID No. Address Use Year
10 1760 Fulton Street Printer 1942, 1947
11 1331 L Street Waterman Bros Co. autos 1927
Autos 1932
12 1333 L Street Montgomery Ward & Co. Tire Depot 1970
13 1347 L Street Fink C L used cars/auto dealer 1942, 1947 Poff Buick Inc. 1952
14 1435 L Street La Con Distributing Co autos “trmrs” 1952, 1958 Pop’s Foreign Engine Distributing auto repair 1986
Preferred Auto Detail & Hand Car Wash 1990
15 1512 L Street Fine Auto 1990
16 1605 L Street Funeral home and chapel 1932-2017
17 2027 Merced Street Thomas Karl garage 1927
Milton H E auto repair 1932
Dilman & Sharp auto repairs 1942, 1947, 1952, 1958
18 2115 Merced Street Greco H J printer 1942
19 2121 Merced Street Howard Bros welders, Fresno Automatic Wheel Alignment
1927
Chittum & Feuerstein auto repairs 1932
20 2124 Merced Street Marty G W auto repair 1927, 1932
21 2125 Merced Street Dorris Service Station auto repair 1927 Montgomery Ward & Co. tire depot 1952, 1958
22 2126 Merced Street Hume Printing & Lithograph Co. 1927, 1932, 1942, 1947, 1952, 1958,
1965, 1970, 1975
23 2138 Merced Street Pacific Rubber Stamp Co. typesetting 1970 24 2025 Stanislaus Street Dupuy & Steitz used cars 1947 25 2031 Stanislaus Street Bell Cleaners & Tailors 1947
Bell Cleaners 1952
26 2139 Stanislaus Street Chanslor & Lyon whol. Auto Parts 1958, 1932, 1965 27 2200 Stanislaus Street Leach Motors Used Car Lot 1965 Sierra Chrysler Plymouth used cars 1970
28 2201 Stanislaus Street Fresno Mazda 1980
Leach/Sierra Chrysler Plymouth Auto Dealers 1962, 1965, 1970 Valley Ford Sales 1958
Bradley EE Autos 1927
29 2222/2223 Stanislaus
Street
Bradley EE Used cars 1927
Soogian Susie Motors 1932
Slavich Bros, Inc. Jeep HQ 1980
29 2230 Stanislaus Street Premier Imports used car lot 1990 Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

Figure 4
ID No. Address Use Year
Slavich Bros, Inc. Used car lot 1980, 1986
30 2021 Tuolumne Street Gagosian S A clothes cleaner 1932 31 2130 Tuolumne Street Moreland Motor Truck Co. 1937
32 1260 Van Ness Avenue Coast Tire Co. 1927, 1932
Lindley & Harrison auto 1937
33 1302 Van Ness Avenue James Wesley Wood Used Cars 2004 34 1330 Van Ness Avenue Meacham J L autos, Phelps O L auto repair, Franzke Auto Co.
1927
Wheel Service & Supply Co. 1932
Cowan’s Brake & Wheel Service 1937, 1942, 1947,
1952, 1958
35 1333 Van Ness Avenue Weber G J autos 1927
Thomas Gerald autos 1932
Fresno Motor Sales, Cadillac Motor Cars 1937
36 1340 Van Ness Avenue Pope G W H tires 1927
Boyer C F & Co. tires 1932
Ertwell W A storage batteries 1937
National Lead Co. 1942, 1947, 1952
37 1344 Van Ness Avenue Wheel Service Supply Co. 1927
Ward R E garage 1932
Lauritzen Machinery Co. 1937
38 1347 Van Ness Avenue Evin’s Auto Supply 1927
Pope G W H tires 1932, 1937
Schwarz H B auto repair, Pheley T W radios, Joy W J
whol auto access, Vaccaro Jos speedometer repr
1947
39 1356 Van Ness Avenue Greco H J printer 1932
40 1357 Van Ness Avenue Childers Nash Motor 1927
King Motor Sales Co. autos 1932
41 1360 Van Ness Avenue Morton Stores tires 1927
42 1400 Van Ness Avenue Stom J P Co. autos 1927
Rodman Chevrolet Co. 1932, 1937, 1942,
1947, 1952, 1958
43 1422 Van Ness Avenue Electric Laboratories auto electricians, etc. 1927 Electric Laboratories auto electricians 1932, 1937
Electric Laboratories batteries 1942, 1947, 1952
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Van Ness Avenue Water Transmission Grid Main Project

Figure 4
ID No. Address Use Year
44 1429 Van Ness Avenue Rueckert L H w hol bear 1937, 1942 Bearings Supply Co. 1947, 1952
Pacific Telephone & Telegraph repair/equipment
department
1958, 1962, 1965, 1970
Pacific Telephone & Telegraph Plant 1975, 1980
Rodman Chevrolet Co. used 1937
Iverson & Carlton auto tires 1927, 1932, 1942,
1947, 1952
45 1430 Van Ness Avenue San Joaquin Tire Co. Inc. 1958, 1962 46 1433 Van Ness Avenue Iverson & Carlton tires 1937
Ridge L motor repair 1937
47 1435 Van Ness Avenue Ridge Motor Shop 1942, 1947, 1952 48 1440 Van Ness Avenue Bosch Robt Magnetos, Willard Storage Battery Service Station, etc.
1927
Toomey Batter & Elec 1932
49 1444 Van Ness Avenue Electric Co. Inc., San Joaquin Battery 1937 Stallard H J batteries 1942
San Joaquin Battery & Electric Co. 1947
Thorp A F auto repair, Bonnett T A batteries 1952
Phillips Donald G auto repair 1958
Thorp Fred A speedometers, Joe’s Auto Electric
repairs, Ed’s Automotive Repair
1962
Thorp Fred Speedometer Service Repair, Joe’s Auto
Electric, Van Ness Transmission Service Auto
1965
Reeder Motor Co., Lish A P auto repair 1927
Pacific Telephone & Telegraph Co. traffic equipment 1965, 1970 50 1445 Van Ness Avenue Western Electric Co. Plant 1975, 1980 Pacific Bell 1986
Harris Bros auto painters 1927
Routh C A clothes cleaner 1927
51 1465 Van Ness Avenue McKay H C California service station 1927 52 1477 Van Ness Avenue Miller Tire Co. 1927
53 1495 Van Ness Avenue Lehnberg Waterman Inc. service station 1932 54 1500 Van Ness Avenue Richfield Snappy Service 1937
Kenney A W auto laundry 1942
Thompson & Ducey gas 1932
Gerard R H gas station 1937
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Van Ness Avenue Water Transmission Grid Main Project

Figure 4
ID No. Address Use Year
55 1501 Van Ness Avenue Gas station 1942, 1947, 1952
Gas station 1947, 1952, 1958,
1962, 1965, 1980,
1986, 1990, 1994,
1996, 1999, 2002,
2004, 2009
56 1503 Van Ness Avenue Thompson & Ducey tires 1932
57 1506 Van Ness Avenue Federal Tire Co. 1927
58 1509 Van Ness Avenue Talbott & Le Moss tires 1932
59 1514 Van Ness Avenue Kurz Fred Motors storage 1952
Hughes Manley Garage auto repair 1958, 1962
Crane L clothes cleaner 1937, 1942
King Cole Motor Co. used cars 1947
60 1515 Van Ness Avenue Bradley EE used cars 1942
61 1526, 1527, 1528, 1529,
1530, 1531 Van Ness
Avenue
McAlisters Service Stores tires, King Cole Motor Co.
used cars
1947
62 1532 Van Ness Avenue Chittums Brake & Wheel Service 1958 Goodyear Service Inc. Goodyear Tire & Rubber tires 1932, 1937, 1942 63 1540 Van Ness Avenue Fresno Bee Engraving Plant 1942, 1947, 1952, 1958, 1962, 1965,
1970, 1975
64 1550 Van Ness Avenue Fresno Bee Engraving Plant 1937, 1958, 1962, 1965, 1970
65 1555 Van Ness Avenue Shell Oil Co. gas station 1932
66 1559 Van Ness Avenue Gas station 1937, 1942, 1947
67 1659 Van Ness Avenue Lee Tire & Rubber 1927
68 1662 Van Ness Avenue Lish A P auto repair, Willy’s Motor Co. 1932 69 1717 Van Ness Avenue Hamlin Neon Sign Co. Inc. 1937, 1942, 1947, 1952 70 1720 Van Ness Avenue Leach Economy Motors 1958
71 1721 Van Ness Avenue Sierra Printing & Lithograph Co. 1962, 1965, 1970, 1975 Don Lee Inc. autos 1927
Priest & Harm autos 1932
72 1740 Van Ness Avenue Electric Laboratories Inc. auto repair 1965, 1970, 1975, 1980, 1986, 1990
Shehrian Karl clothes cleaner 1942, 1947
Sadler’s Print Center printers 1996, 2002, 2004
73 1743, 1745 Van Ness
Avenue
Funeral home/chapel 1937, 1942, 1947,
1952, 1958, 1962,
1965, 1970, 1975,
1980, 1986, 1990
74 1752 Van Ness Avenue Associated Oil Co. service station 1927 Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

Figure 4
ID No. Address Use Year
75 1762 Van Ness Avenue Undertaker 1927
76 1802 Van Ness Avenue Gas station 1937, 1942, 1947,
1952, 1958
77 1805 Van Ness Avenue Gas station 1952, 1958, 1962, 1965 Johnnie’s Speedometer Service 1958
78 1810 Van Ness Avenue Silk screen printing 1962, 1965, 1970, 1975, 1980, 1986, 1990
79 1811 Van Ness Avenue Rodriguez Service & Repair 1990 80 1837 Van Ness Avenue Shekoyan Abet clothes cleaner 1932, 1937, 1942, 1947, 1952
81 1841 Van Ness Avenue Spic N Span Cleaners 1958
82 1863 Van Ness Avenue La B Cleaners 1962, 1965, 1970
Gas station 1932, 1937, 1947, 1952
Well Finder Database Review
A review of the CalGEM Online Mapping System indicates that no oil wells are located within the Project, adjacent properties, or within 0.25 mile of the Project.

Pipeline Database Review
The NPMS online Public Map Viewer indicates that there are no hazardous liquid or natural gas transmission pipelines located on or adjacent to Project. The nearest underground hazardous material pipeline is an active Kinder Morgan hazardous liquid pipeline carrying non-highly volatile liquid (HVL).

The pipeline runs parallel to the railroad corridor which is located approximately 0.25 mile west of the Project.

Site Reconnaissance
Rincon completed a reconnaissance of the Project along Van Ness Avenue from Divisadero Street (north) to Merced Street (south) on October 23, 2021. The Project is located in a mixed-use corridor generally consisting of apartments, restaurants, and commercial/retail structures and offices. The Project is currently developed as Van Ness Avenue with cross streets and alley ways located to the east and west of Van Ness Avenue. The alley ways consisted of dumpsters with trash staining, utility manholes, and one homeless encampment. Stains on pavement/concrete were observed in alley ways near dumpsters, likely due to overflow or leaks from the dumpsters. Minor oil staining was observed in parking areas throughout the corridor. Other than surface staining and evidence of fill dirt being present within the Project, other significant environmental issues that could be reported from observations made from walking the Project were not reported. Select photographs of the Project along Van Ness Avenue are included in the cultural resources assessment letter.

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Van Ness Avenue Water Transmission Grid Main Project

Summary
The Project is not listed as a Cortese hazardous material site, nor is the Project listed on the SEMS or DTSC EnviroStor databases. However, the adjacent closed LUST case located at 2201 Stanislaus Avenue is identified as meeting the “Cortese List” requirements, as determined by CalEPA. Petroleum impacted soil associated with a former waste oil UST located adjacent to L Street, as well as impacts from former hydraulic lifts onsite, were investigated between 1990 and 1991. Historical records indicate that the site operated as an auto dealership/repair facility since at least 1927 through the 1980’s; by 1998 the site had been redeveloped as a parking lot. However, it is unknown whether, or to what extent, soil impacts were remediated. Based on the proximity to the Project, there is a potential for contamination associated with this release site to impact soil along parts of L Street within the Project.

The nearby former Chevron gasoline service station located at 1506 Van Ness Avenue is also identified as meeting the “Cortese List” requirements, as determined by CalEPA. Historical aerial photographs indicate that the gasoline station was present from at least 1962 through 2014 (Sanborn Maps did not provide coverage of this area). Based on the results of the 1992 subsurface investigation and closed case status, it doesn’t appear that impacts associated with the historical gasoline release would have impacted soil beneath parts of the Project along or fronting Van Ness Avenue.

A closed LUST case is located at 2211 Merced Street which is approximately 350 feet east of the Project.

A letter from the County of Fresno Department of Public Health, dated February 14, 2020, references a Sampling and Analysis Report (Kroeker, Inc. dated January 10, 2020) stating that “soil around the former UST was not significantly impacted to warrant further investigation” and no further action was required at the site. Based on the distance and the nature of the release to shallow soil, it is unlikely that contamination associated with this site will impact the Project.

Review of Sanborn Maps and city directory listings indicates that there are numerous historical auto repair, tire service stores, cleaners, and gasoline stations formerly located along Van Ness Avenue, L Street, and Stanislaus Street within the limits of the Project. Although these properties were not reported on release databases, apart from the sites discussed above, there is potential for unreported releases to have occurred at these properties formerly fronting Van Ness Avenue, L Street, and Stanislaus Street. The adjacent historical uses may have impacted soil and/or groundwater beneath the Project; however, groundwater is not expected to be encountered during construction. Additionally, according to the 1938 Thomas Bros. map of Fresno, California, an electric railroad was present along Stanislaus Street at the intersection of Van Ness Avenue. Residual impacts associated with the former electric railroad could include metals and hydrocarbon contamination.

It is our understanding that the Van Ness Avenue Water TGM Construction Project will include construction of approximately 0.58 mile of replacement water distribution mains within Van Ness Avenue between Divisadero Street and 100 feet southwest of Stanislaus Street, and a TGM extension along East Stanislaus Street to L Street and along L Street to the Calaveras Street intersection in Downtown Fresno, California. The Project would also relocate all services to existing buildings that front Van Ness Avenue that are currently served by water mains in the alleys between Van Ness and Fulton Street and between Van Ness and L Street. Soil and soil vapor may be impacted with, but not limited to, TPH, VOCs, and heavy metals, therefore Project construction and operation could potentially create a significant hazard to the public, construction workers, future Project site residents, or the environment.

Therefore, prior to Project construction, subsurface investigations and remediation efforts (if warranted) should be completed.

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Van Ness Avenue Water Transmission Grid Main Project

IMPACT HAZ-1 Based on historical industrial land use and the two release sites located within the Project site, soil and soil vapor beneath the construction area may be potentially impacted with, but not limited to, TPH, VOCs, and heavy metals. Therefore, potentially significant impacts to human health may exist during construction.

Mitigation Measures
MM HAZ-1 Pre-construction Soil Sampling
Soil sampling shall be completed prior to construction and in accordance with City of Fresno standard operating procedures for soil sampling. The Project applicant shall retain a qualified environmental consultant, California Professional Geologist (PG) or California Professional Engineer (PE), to prepare a pre-construction soil sampling scope for the Project that will be developed to determine whether soil and/or soil vapor has been impacted at concentrations exceeding San Francisco Bay Regional Water Quality Control Board environmental screening levels (ESLs) for construction worker health risks and commercial/industrial land uses.

As part of the pre-construction soil sampling, the qualified environmental consultant shall screen the analytical results against the ESLs. ESLs are risk-based screening levels for direct exposure of a construction worker under various depth and land use scenarios. The City of Fresno (lead agency) shall review and approve the results of the soil sampling prior to construction.

If results of the soil sampling indicate that contaminants are detected in the subsurface at the Project in exceedance of applicable ESLs, the Project applicant shall prepare a Soil Management Plan (SMP) for Impacted Soils (see Mitigation Measure HAZ-2) prior to construction. In addition, the Project applicant shall retain a qualified environmental consultant to complete additional soil testing to delineate impacts and recommend soil remediation and disposal approaches, or consider other remedial engineering controls prior to Project construction (see Mitigation Measure HAZ-3).

If results of the soil sampling indicate that contaminants are present at concentrations exceeding hazardous waste screening thresholds for contaminants in soil (California Code of Regulations [CCR] Title 22, Section 66261.24 Characteristics of Toxicity), the Project applicant shall complete a remediation plan (see Mitigation Measure HAZ-3) that shall list the required steps to protect site workers and the public.

This remediation plan and implementation shall be conducted at the Project prior to or during onsite construction.

MM HAZ-2 Soil Management Plan for Impacted Soil
If impacted soil or other impacted waste are present at the Project, the Project applicant shall retain a qualified environmental consultant (PG or PE), to prepare a SMP prior to construction. The SMP, or equivalent document, shall be prepared to address onsite handling and management of impacted soil or other impacted waste, and reduce hazards to construction workers and offsite receptors during construction. The plan must establish remedial measures and/or soil management practices to ensure construction worker safety, the health of future workers and visitors, and the off-site migration of contaminants from the site. These measures and practices shall include, but are not limited to:
▪ Stockpile management including stormwater pollution prevention and the installation of Best Management Practices (BMPs)
▪ Proper disposal procedures of contaminated materials
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Van Ness Avenue Water Transmission Grid Main Project

▪ Monitoring and reporting
▪ A health and safety plan for contractors working at the site that addresses the safety and health hazards of each phase of site construction activities with the requirements and procedures for employee protection.
▪ The health and safety plan will also outline proper soil handling procedures and health and safety requirements to minimize worker and public exposure to hazardous materials during construction.

The City of Fresno (lead agency) shall review and approve the Project Soil Management Plan for Impacted Soil prior to demolition and grading (construction).

MM HAZ-3 Remediation
If soil present within the construction envelope at the Project contains chemicals at concentrations exceeding applicable ESLs or hazardous waste screening thresholds for contaminants in soil (CCR Title 22, Section 66261.24), the Project applicant shall retain a qualified environmental consultant (PG or PE), shall develop and implement a remediation plan. The remediation plan may include additional analytical testing to delineate impacts within the construction envelope. In addition, the remediation plan will describe the remediation and waste disposal approaches, and provide disposal requirements for proper disposal of the waste soils or other impacted wastes. The qualified environmental consultant shall also provide requirements for remedial engineering controls, if appropriate.

The City of Fresno (lead agency) shall review and approve the development site disposal recommendations prior to transportation of waste soils offsite and review and approve remedial engineering controls, prior to construction.

As long as potentially impacted soil is handled and managed in accordance with the SMP and remediation is completed (if warranted), impacts related to the exposure to chemicals remaining in soil and soil vapor beneath the Project would be considered Less than Significant with Mitigation Incorporated.

With implementation of Mitigation Measures HAZ-1 through HAZ-3, hazardous material impacts to human health during Project construction will be less than significant.

LESS THAN SIGNIFICANT WITH MITIGATION INCORPORATED
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Van Ness Avenue Water Transmission Grid Main Project

Please do not hesitate to contact Rincon with any questions regarding this survey.

Sincerely,
Rincon Consultants, Inc.

Lauren Vigliotti Ryan Thacher, PhD, PE
Environmental Scientist Director
Julie Lynne Welch
Director of Due Diligence
Attachments
Attachment 1 Figures
Attachment 2 Regulatory Documentation
Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

References
California Department of Conservation Geologic Energy Management Division (CalGEM, formerly DOGGR). 2023. Well Finder. Last modified: 2023.
https://www.conservation.ca.gov/calgem/Pages/WellFinder.aspx (accessed August 2021).

California Environmental Protection Agency. 2023. Cortese List Data Resources. State of California 2023. https://calepa.ca.gov/sitecleanup/corteselist/ (accessed August 31, 2023).

California SWRCB. 2023a. GeoTracker. Last modified: 2023. https://geotracker.waterboards.ca.gov/ (accessed August 31, 2023).
_____. 2023b. California PFAS Investigations. Last modified: 2023. https://www.waterboards.ca.gov/pfas/ (accessed September 1, 2023). _____. 2023c. GeoTracker PFAS Map. Last modified: 2023. https://geotracker.waterboards.ca.gov/map/pfas_map (accessed September 1, 2023).

Department of Toxic Substances Control. 2023a. EnviroStor. Last modified: 2023. https://www.envirostor.dtsc.ca.gov/public/ (accessed August 31, 2023). _____. 2023b. Hazardous Waste and Substances Site List. Last modified: 2023b. https://www.envirostor.dtsc.ca.gov/public/search.asp?cmd=search&reporttype=CORTESE&site _type=CSITES,OPEN,FUDS,CLOSE&status=ACT,BKLG,COM&reporttitle=HAZARDOUS+WASTE+AN D+SUBSTANCES+SITE+LIST (accessed September 1, 2023).

Emcon Associates. 1991. Results of Soil Sampling and Analysis performed at 2201 Stanislaus Street in Fresno, California. January 16.
https://www.fresnohealthinspections.com/WebLink/DocView.aspx?id=2457139 (accessed August 31, 2023).

Fresno County. 2023. Department of Public Health Environmental Health Document Portal. https://www.fresnohealthinspections.com (accessed August 31, 2023).

Krazen & Associates, Inc. 1992. Site Characterization Investigation Report, Chevron Station #9-0303, 1506 Van Ness Ave., Fresno, CA. January 22.
https://geotracker.waterboards.ca.gov/profile_report.asp?global_id=T0601900341 (accessed August 30, 2023).

National Environmental Title Research, LLC. 2023. Historical Topographic Maps and Aerial Photographs. https://www.historicaerials.com/viewer (accessed September 1, 2023).

Thomas Brothers. 1938. Thomas Bros. Map of Fresno, California. David Rumsey Historical Map Collection.
https://avidrumsey.com/luna/servlet/view/all/what/Atlas%2BMap/where/Fresno%2B%2528Cal if.%2529?sort=Pub_List_No_InitialSort%2CPub_Date%2CPub_List_No%2CSeries_No (accessed September 1, 2023).

United States Department of Transportation (USDOT). 2021. National Pipeline Mapping System (NPMS) Public Map Viewer. Pipeline and Hazardous Materials Safety Administration (PHMSA). Last modified: 2023. https://www.npms.phmsa.dot.gov/PublicViewer/ (accessed September 1, 2023).

Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project

United States Environmental Protection Agency (USEPA). 2023a. SEMS Search. Last modified: August 30, 2023. https://www.epa.gov/enviro/sems-search (accessed August 30, 2023). ______. 2023b. “Drinking Water Health Advisories for PFOA and PFOS.” Last modified: 2023. https://www.epa.gov/sdwa/drinking-water-health-advisories-pfoa-and-pfos (accessed September 1, 2023).

Attachment 1
Figures

Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project
1-1
Figure 1 Project Location Map

Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project
1-2
Figure 2 Project Boundary Map

Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project
1-3
Figure 3 Historical Site Map

Blair, Church & Flynn Consulting Engineers
Van Ness Avenue Water Transmission Grid Main Project
1-4
Figure 4 Historical City Directory Listings

Attachment 2
Regulatory Documentation

The business of sustainability

First Half 2021
Semiannual
Groundwater Monitoring
Report
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California

15 July 2021

Project No.: 0577677

www.erm.com Project No.: 0577677 Client: Univar Solutions USA Inc. 15 July 2021 Signature page
15 July 2021
First Half 2021 Semiannual Groundwater
Monitoring Report
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Greg Leung
Project Manager
Gregory J. Wheeler
Partner-in-Charge
Isaac Pelz, PG, CHG
Principal Consultant
ER
M-West, Inc.
980 9th Street, Suite 750
Sacramento, California
95814
Telephone: +1 916 924 9378
Fax: +1 916 920 9378
© Copyright 2021 by ERM Worldwide Group Ltd and / or its affiliates (“ERM”).

All rights reserved. No part of this work may be reproduced or transmitted in any form, or by any means, without the prior written permission of ERM.

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CONTENTS

CONTENTS

1. INTRODUCTION ................................................................................................................................ 1

2. SITE BACKGROUND......................................................................................................................... 2

2.1 Soil Vapor Remedial Actions ................................................................................................... ............. 2

2.2 Groundwater Remedial Actions ............................................................................................................ 3

3. GROUNDWATER MONITORING ACTIVITIES ................................................................................. 4

3.1 Water Level and Water Quality Monitoring ........................................................................................... 4

3.2 Well Repair Status ................................................................................................................................ 5

4. GROUNDWATER MONITORING RESULTS .................................................................................... 6

4.1 Groundwater Flow .............................................................................................................. .................. 6

4.2 VOC Analytical Results – Shallow Wells......................................................................................... ...... 6

4.3 VOC Analytical Results – Deep Wells ........................................................................................... ....... 7

5. SVE SYSTEM MONITORING SUMMARY ......................................................................................... 8

6. SUMMARY AND CONCLUSIONS ..................................................................................................... 9

7. REFERENCES ................................................................................................................................. 10

APPENDIX A HISTORICAL GROUNDWATER ELEVATION DATA

APPENDIX B GROUNDWATER SAMPLING RECORDS

APPENDIX C HISTORICAL ANALYTICAL RESULTS FOR SELECTED VOLATILE ORGANIC

COMPOUNDS IN GROUNDWATER

APPENDIX D HISTORICAL ANALYTICAL RESULTS FOR SELECTED METALS AND

INORGANIC COMPOUNDS IN GROUNDWATER

APPENDIX E LABORATORY ANALYTICAL RESULTS AND ERM QUALITY

ASSURANCE/QUALITY CONTROL REVIEW

APPENDIX F HISTORICAL GROUNDWATER FLOW DIRECTIONS AND GRADIENTS

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CONTENTS
List of Figures
1 Site Location
2 Site Map
3 Shallow Groundwater Elevations – April 2021
4 Deep Groundwater Elevations – April 2021
5 PCE Distribution in Shallow Groundwater – April 2021
6a, b PCE Concentrations vs. Time – Shallow Groundwater 7 PCE Distribution in Deep Groundwater – April 2021
8 PCE Concentrations vs. Time – Deep Groundwater
9 Time vs. Influent PCE Concentration and Cumulative Mass Removed 10 Pre/Post-ISCO PCE Distribut ion in Shallow Groundwater

List of Tables
1 Monitoring and Reporting Program Requirements
2 Monitoring Well Construction Details
3 Groundwater Elevation Data
4 Groundwater Field Parameters
5 Volatile Organic Compounds Detected in Groundwater
6 Well Conditions
7 Soil Vapor Extraction System Summary

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CONTENTS
Acronyms and Abbreviations
µg/L Micrograms per liter
AST Aboveground storage tank
bgs Below ground surface
CV-RWQCB Central Valley Regional Water Quality Control Board ERM ERM-West, Inc.
ft/ft Feet per foot
HSRA California High Speed Rail Authority
ISCO In situ chemical oxidation
MCL Maximum Contaminant Level
MRP Monitoring and Reporting Program
PCE Tetrachloroethene
SVE Soil vapor extraction
Univar Solutions Univar Solutions USA Inc.

USEPA United States Environmental Protection Agency
VOC Volatile organic compound
VW&R Van Waters & Rogers Inc.

WDR Waste Discharge Requirement

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INTRODUCTION

1. INTRODUCTION
On behalf of Univar Solutions USA Inc. (Univar Solutions), ERM-West, Inc. (ERM) prepared this First Half 2021 Semiannual Groundwater Monitoring Report to summarize first half 2021 semiannual groundwater monitoring and sampling results for the former Van Waters & Rogers Inc. (VW&R) facility located at 1152 G Street in Fresno, Fresno County, California (site; Figure 1). Groundwater monitoring was conducted in general accordance with the Monitoring and Reporting Program R5-2015-0136, approved by the Central Valley Regional Water Quality Control Board (CV-RWQCB 2015) effective 11 December 2015. The CV- RWQCB issued an update to the Monitoring and Reporting Program R5-2015-0136 dated 11 June 2019 (MRP; CV-RWQCB 2019). On 22 December 2020, CV-RWQCB approved the request for rescission of the Waste Discharge Requirements R5-2015-0136. Groundwater monitoring and reporting will continue to assess post remediation site conditions.

Following this introductory section, this report consists of the following components:
 Section 2: Site background
 Section 3: Groundwater monitoring activities
 Section 4: Groundwater monitoring results
 Section 5: SVE system monitoring summary
 Section 6: Summary and conclusions
 Section 7: References used in preparation of this report Figures and tables follow the text, and supporting information is provided in the appendices.

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SITE BACKGROUND

2. SITE BACKGROUND
The site occupies approximately 1.25 acres in Fresno, California, and formerly housed a brick warehouse with loading docks and associated parking, all of which were demolished in 2016 (Figure 2). From approximately 1965 to 1986, VW&R leased the site and used the northeastern corner to store tetrachloroethene (PCE) in an aboveground storage tank (AST), which has since been removed. A chemical supply company known as United Agri-Products, or UAP Special Products, occupied the site from 1987 to 1989. The site was reportedly used primarily as an office and warehouse for UAP Special Products’ wholesale agricultural/chemical business. From 1989 to 2007, the site was leased by Good Guys Tire Center for use as a tire storage warehouse. The site is currently vacant and falls within the footprint of the proposed California High Speed Rail Authority (HSRA) development. HSRA took possession of the site through eminent domain in September 2015 and site facilities were demolished in 2016. HSRA continues acquiring and demolishing properties along G Street, including the former Lamoure’s Cleaners (dry-cleaning) site.

A summary of the investigation and remediation history has been provided in numerous quarterly and semiannual reports. In brief, PCE was initially reported in soil samples collected from soil borings near the former AST in 1994 as part of a Phase I Environmental Site Assessment and soil investigation. Soil, groundwater, and soil vapor investigations and remediation followed. Provided below is a high-level overview of remediation activities performed on and off site.

2.1 Soil Vapor Remedial Actions
In 1998, Univar Solutions (formerly Univar USA Inc.) initiated remediation activities with a soil vapor extraction (SVE) system onsite. The SVE system used three nested vapor well pairs (SVE-1S/D, SVO- 1S/D, and SVO-2S/D), which had screened intervals in the vadose zone from 20 to 50 feet below ground surface (bgs) and 70 to 90 feet bgs. In February 2004, Univar Solutions submitted a letter to the CV- RWQCB concluding that the SVE system had successfully remediated the vadose zone and, to some degree, the groundwater near the former AST.

In 2008, Univar Solutions implemented an SVE pilot test in the area of off-site well MW-04, as documented in the Soil Vapor Extraction Pilot Test Report, Former Univar USA Inc. Facility, 1152 G Street, Fresno, California (Rubicon 2008). This was conducted in response to CV-RWQCB’s concerns that PCE may be present in the vadose zone near MW-04 and was acting as a source to groundwater.

Univar Solutions installed a full-scale SVE system near MW-04 with nested vapor well pairs (VW-01A/B, through VW-04A/B), which had screened intervals in the vadose zone from 20 to 50 feet bgs and 70 to 90 feet bgs. The SVE system began operation in November 2009 (Figure 2) using wells MW-04, VW-01A/B through VW-04A/B, VW-05, VW-06, and VW-07. The extracted soil vapor was treated using four carbon vessels connected in series, each containing 1,600 pounds of granular activated carbon. VW-01A and VW-02A/B were most recently the only wells open to SVE.

The SVE system ran continuously until 27 January 2020, then was powered down due to control board and motor malfunctions. Between late January and March 2020, the SVE system operated intermittently.

In accordance with the 28 May 2020 Workplan (ERM 2020a), supplemental SVE wells and probes were sampled in June 2020 to evaluate curtailment of the SVE treatment system. The sampling results and recommendations were presented in the SVE Curtailment Request submitted to the CV-RWQCB on 10 August 2020 (ERM 2020b). In a letter dated 11 November 2020, the CV-RWQCB denied the SVE Curtailment Request due to the high mass removal rate observed prior to the shutdown of the SVE system, and requested that the SVE system be restarted, as soon as practical.

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SITE BACKGROUND
Following the CV-RWQCB request, the SVE system was restarted on 3 March 2021. Upon restart, operational set points were increased to stress the formation and provide optimal condition for increased mass removal in order to compare to historical data. The system operated from 3 March to 9 May 2021.

Mass removal rates observed were stable when compared to historical rates.

During the evaluation of data, a miscalculation was discovered affecting mass removal data in previously submittal reports. After corrections were made, a total of 2,174 pounds (previously reported at approximately 21,253 pounds) have been removed since 16 May 2014. This assessment was discussed with the CV-RWQCB. Based on the evaluation and proposed HSRA redevelopment, an Updated Soil Vapor Extraction System Curtailment Request (ERM 2021) was submitted to the CV-RWQCB on 2 June 2021.

2.2 Groundwater Remedial Actions
In 2015, an in-situ chemical oxidation (ISCO) pilot test was conducted. In preparation of ISCO activities, one monitoring well (MW-23) and eight injection wells (IW-01 through IW-08) were installed in February 2015. ISCO injection activities were subsequently conducted using 2.5 percent potassium permanganate solution. The 2015 ISCO activities are summarized in the Semiannual Groundwater Monitoring Report, January through June 2015, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California (ERM 2015).

On 11 December 2015, the CV-RWQCB issued Waste Discharge Requirement (WDR) Order R5-2015- 0136 for the full-scale implementation of the ISCO remedy. This order superseded the work being performed under the General Order, and all work was performed in accordance with WDR Order R5- 2015-0136, as updated by the 2019 MRP revisions.

Based on the effectiveness of the ISCO pilot test in 2015, a full-scale ISCO injection program was conducted in November 2017. Nine target wells (VW-01B through VW-04B, VW-05, VW-06, MW-14S, MW-21S, and MW-23) were selected and redeveloped to ensure effective deployment of the ISCO compound and that the wells could withstand ISCO activities. The 2017 ISCO activities are summarized in the Fourth Quarter 2017 and Annual Groundwater Monitoring Report, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California (ERM 2018).

A second full-scale ISCO injection program was completed in November 2018. Eleven wells (IW-01, IW-04, IW-06, IW-08, MW-05S, MW-11, MW-12, MW-18S, VW-03B, VW-05, and VW-07) were selected for deployment of the ISCO compound. The 2018 ISCO activities are summarized in the Fourth Quarter 2018 and Annual Groundwater Monitoring Report, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California (ERM 2019).

Based on the success of the injections conducted to date, no additional injection activities are planned.

As such, the WDR Order and associated MRP were no longer needed and a request to rescind was submitted on 23 October 2020. The CV-RWQCB approved the rescinding of the WDR Order and MRP on 22 December 2020.

On 12 January 2021, Univar Solutions submitted the Response to Nitrate Control Program Notice to Comply, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California (Univar 2021) to the CV-RWQCB in response to the Nitrate Control Program Notice to Comply, dated 29 May 2020; in consideration of the recent enrollment rescission of the WDR Order and MRP, Univar requested that the site be removed from the Salt and Nitrate Control Programs. On 14 January 2021, the CV-RWQCB approved this request to disregard the Notice to Comply from both the Salt Control Program and Nitrate Control Program.

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GROUNDWATER MONITORING ACTIVITIES

3. GROUNDWATER MONI TORING ACTIVITIES
First half 2021 semiannual monitoring activities were conducted from 5 through 7 April 2021. Monitoring was performed in accordance with the 2019 MRP (Table 1).

Consistent with the second semiannual 2020 monitoring event, twenty-eight monitoring wells (BIO-01, MW-01, MW-01D, MW-03, MW-04, MW-06, MW-07, MW-12, MW-13, MW-18S, MW-18D, MW-20D01, OB-07, OB-08, VW-01B through VW-04B, VW-05 through VW-07, T01-02, T01-03, T02-01, T02-02, T02- 02D, T02-03, and T03-01D) were not gauged or sampled because of the CV-RWQCB’s well decommissioning approval., as part of the HSRA construction activities, at the site and/or historical monitoring results indicating concentrations that were stable or below Maximum Contaminant Levels (MCLs). Per CV-RWQCB’s communication, MW-07, MW-10, and MW-20D01 will be retained for future monitoring.

3.1 Water Level and Water Quality Monitoring
Monitoring activities conducted during this reporting period included depth-to-water measurements at all 31 wells and groundwater sampling at 27 of 28 wells. Monitoring well construction details are presented in Table 2 and well locations are depicted on Figure 2.

Confluence Environmental, Inc., of Sacramento, California, conducted groundwater sampling activities under ERM’s supervision. The depth-to-water and groundwater elevation data are summarized in Table 3 and historical depth-to-water and groundwater elevation data are included as Appendix A. Sampling activities were recorded on log sheets, which are presented in Appendix B.

Sampling procedures included purging groundwater using a bladder pump, while recording water quality parameters, including pH, conductivity, temperature, dissolved oxygen, and oxidation-reduction potential.

Once the parameters were stable, groundwater samples were collected. Laboratory-supplied, clean sample containers were filled directly from dedicated tubing at each well.

Reusable sampling supplies were decontaminated by either steam-cleaning or detergent wash, and were rinsed with deionized water. Equipment blank samples were collected and analyzed to ensure proper decontamination procedures. Purge water and decontamination water were contained in 55-gallon drums and will be disposed of offsite.

All groundwater samples collected for analysis were stored in an ice-chilled cooler for transportation to the laboratory under chain-of-custody protocol. SGS Laboratories of Orlando, Florida, analyzed the samples per the 2019 MRP requirements. Field activities were documented using the appropriate field forms, including sample labels and chain-of-custody documentation.

As discussed in Section 2.2.1, due to recent reductions in monitoring requirements as a result of the rescission of the WDR Order and MRP, groundwater samples were only analyzed for VOCs by United States Environmental Protection Agency (USEPA) Method 8260B.

Groundwater monitoring and sampling field parameters during the current reporting period are summarized in Table 4 and analytical results are presented in Table 5; historical analytical results for selected VOCs and metal/inorganic compounds are summarized in Appendices C and D, respectively.

Duplicate and trip blank samples were collected for quality assurance/quality control purposes at the time of sampling. The laboratory report, associated chain-of-custody documentation, and ERM quality assurance/quality control review of the data are included in Appendix E. No data required rejection. All of the data, including qualified data, can be used for decision making purposes.

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GROUNDWATER MONITORING ACTIVITIES

3.2 Well Repair Status
ERM performed an assessment of the condition of the wells during the current reporting period. Minor damage was observed in wells IW-02, IW-05, IW-07, IW-08, MW-11, MW-14D, MW-14S, MW-15D, MW-15D01, MW-16D, MW-17D, MW-19D, MW-19S, MW-20D, MW-20S, MW-21S, MW-22S, MW-23, and T01-01. Selected wells have been approved for decommissioning in anticipation of HSRA redevelopment and well repairs are on hold until then. The status of well conditions is provided in Table 6.

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GROUNDWATER MONITORING RESULTS

4. GROUNDWATER MO NITORING RESULTS
Groundwater level measurements and sampling analytical results obtained during the current reporting period are presented in this section.

4.1 Groundwater Flow
Groundwater elevation contour maps for the shallow and deep groundwater units are presented on Figures 3 and 4, respectively. The groundwater elevation measured at MW-15S (191.38) during site-wide gauging activities on 5 April 2021, is considered anomalous. A second value (190.27), based on data collected prior to sampling on 6 April 2021, was used for contouring purposes instead (as shown in Table 3 and on Figure 3).

A review of the current reporting period’s groundwater elevation data indicates that shallow groundwater flow was generally to the southwest at an approximate gradient of 0.0004 foot per foot (ft/ft). Groundwater flow in the deep groundwater unit was generally to the southwest at an approximate gradient of 0.002 ft/ft.

Current and historical horizontal and vertical groundwater flow directions and gradients are included in Appendix F.

Vertical gradients were calculated using the equation (h 2-h1)/(z2-z1), where:
h1 = Shallow well groundwater elevation
h2 = Deep well groundwater elevation
z1 = Midpoint of the submerged section of the shallow well screen z2 = Midpoint of the submerged section of the deep well screen As shown in Appendix F, groundwater flow directions and gradients historically appear variable. The ISCO injection events in 2015, 2017, and 2018 do not appear to have significantly affected the local hydrology.

4.2 VOC Analytical Results – Shallow Wells
VOCs detected in groundwater during the reporting period are included in Table 5 and historical data of selected VOCs are included in Appendix C. PCE and 1,2-dichloroethane were detected above their respective MCLs. No other VOCs were detected above their respective MCLs.

The distribution of PCE in shallow groundwater is shown on Figure 5. Time versus concentration graphs for PCE in shallow groundwater are presented for selected wells on Figures 6a and 6b and discussed below. Review of the graphs and historical sampling data shows that ISCO has had a significant effect on PCE and its degradation products, and that concentrations have generally decreased in injection wells and downgradient wells since the full-scale ISCO events. In the injection wells used for the 2017 and 2018 full-scale ISCO events, concentrations of PCE and its degradation products were all non-detect at the laboratory method detection limit.

The highest remaining PCE concentrations are located north to northwest of the site in the vicinity of wells IW-05, MW-14S, MW-17S, MW-19S, MW-21S, and T01-01 (Figure 5). The maximum PCE concentration detected in this area was 49.2 micrograms per liter (µg/L) detected in well MW-14S. Other shallow groundwater wells have shown historical and sporadic detections of PCE in the downgradient, upgradient, and cross-gradient directions, such as MW-15S, which reported concentration of PCE at 84.7 μg/L. These detections are not necessarily attributable to the site.

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GROUNDWATER MONITORING RESULTS

4.3 VOC Analytical Results – Deep Wells
The analytical results for the deep well groundwater samples collected during the reporting period are shown on Figure 7. No VOCs were detected above their respective MCLs, with the exception of detections of PCE in the samples collected from MW-15D (7.9/7.9 μg/L). These detections are consistent with historical results at this location and indicates a decrease when compared to results from November 2020 (27.3/27.4 μg/L).

Figure 8 presents a time versus concentration graph for PCE in selected deep-zone monitoring wells. A review of the graph and historical sampling data shows that PCE concentrations are stable to decreasing in the deep-zone monitoring wells since the full-scale ISCO events.

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SVE SYSTEM MONITORING SUMMARY

5. SVE SYSTEM MONI TORING SUMMARY
During the current reporting period, the SVE system operated in accordance with San Joaquin Valley Air Pollution Control District’s permit requirements from 3 March to 9 May 2021. Table 7 summarizes current and historical SVE performance. Figure 9 presents a graph showing operation time versus VOC concentration and cumulative VOC mass removed from 31 December 2012 to 30 June 2021 (8 years).

The total VOC mass removed by the SVE system as of 9 May 2021 was approximately 2,174 pounds.

On 3 March 2021, the SVE system was restarted and operated at increased operational parameters (i.e., increased vacuum, increased extraction flowrate) compared to historical operations. The increased operational parameters for the SVE system allowed for the formation to be stressed and provided an optimal condition for increased mass removal. VOC concentration data collected and observed during operation and maintenance activities did not increase but remained similar to historical operational data.

The data confirmed that the SVE system is unable to extract additional VOC mass from the subsurface and has reached a steady state VOC mass removal rate.

Based on the evaluation of the data, samples results, and proposed un-occupied redevelopment of the area by HSRA started in June 2021, a request for curtailment of the SVE system is appropriate.

On 2 June 2021, an Updated Soil Vapor Extraction System Curtailment Request (ERM 2021) was submitted to the CV-RWQCB.

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SUMMARY AND CONCLUSIONS

6. SUMMARY AND CONCLUSIONS
This First Half 2021 Semiannual Groundwater Monitoring Report presents a summary of the site activities, variances from the previous sampling event, and groundwater conditions observed during the current reporting period as follows:
 More than three years have elapsed since the first full-scale ISCO injection program in November 2017 and over two years have elapsed since the second full-scale ISCO event in November 2018.

Based on the success of the ISCO programs, no additional ISCO injections are planned. The WDR was rescinded in December 2020.
 With the exception of wells MW-07, MW-10, and MW-20D01, CV-RWQCB has approved decommissioning of the requested wells as part of the HSRA construction activities at the site or historical monitoring results indicated concentrations were stable or below MCLs.  PCE has significantly decreased to low (i.e., less than 100 µg/L) to non-detect concentrations in shallow groundwater as a result of ISCO activities. The highest remaining PCE concentrations are located north to northwest of the site and downgradient of Lamoure’s Dry Cleaners (e.g., well MW- 15S [84.7 µg/L]). Figure 10 presents a comparison of shallow well PCE concentrations, demonstrating the effectiveness of the injection events since 2015.  The SVE system was restarted and operated from 3 March to 9 May 2021. Based on the mass removal evaluation, soil vapor samples results, and proposed redevelopment of the area by HSRA, an Updated Soil Vapor Extraction System Curtailment Request was submitted to the CV-RWQCB on 2 June 2021.
 Thirty-four wells (VW-01A/B through VW-04A/B, VW-05 through VW-07, BIO-01, MW-01, MW-01D, MW-03, MW-04, MW-06, MW-12, MW-13, MW-18S, MW-18D, OB-07, OB-08,SVE-1S/D, SVP-1 through SVP-4, and SVO-1S/D through SVO-2S/D) will be decommissioning by HSRA in 2021.  Based on RWQCB approval HSRA will also decommission the SVE treatment unit at the site in 2021.

The next semiannual groundwater monitoring event will be conducted during the second half of 2021. The results will be presented in the Second Half 2021Semiannual Groundwater Monitoring Report to be submitted on or before 1 February 2022.

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REFERENCES

7. REFERENCES
CV-RWQCB. 2015. Monitoring and Reporting Program R5-2015-0136. 11 December.

CV-RWQCB. 2019. Monitoring and Reporting Program R5-2015-0136. 11 December.

ERM-West, Inc. (ERM). 2014. In Situ Chemical Oxidation and In Situ Chemical Reduction Treatability Evaluations, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California. July.

ERM. 2015. Semiannual Groundwater Monitoring Report, January through June 2015, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California. 17 August.

ERM. 2018. Fourth Quarter 2017 and Annual Groundwater Monitoring Report, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California. 1 February.

ERM. 2019. Fourth Quarter 2018 and Annual Groundwater Monitoring Report, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California. 30 January.

ERM. 2020a. Supplemental Soil Vapor Assessment and Groundwater Sample Collection Plan. 28 May.

ERM. 2020b. Soil Vapor Extraction System Curtailment Request, Former Van Waters & Rogers Inc.

Facility, 1152 G Street, Fresno, California. 10 August.

ERM. 2021. Updated Soil Vapor Extraction System Curtailment Request, Former Van Waters & Rogers Inc. Facility, 1152 G Street, Fresno, California. 2 June Innovative Engineering Solutions, Inc. 2010. Remedial Action Plan & Report of Waste Discharge (following Waste Discharge Requirements Order R5-2008-0149), Univar USA Inc. Former Facility, 1152 G Street, Fresno, California. November.

Rubicon. 2008. Soil Vapor Extraction Pilot Test Report, Former Univar USA Inc. Facility, 1152 G Street, Fresno, California. 19 November.

FIGURES

Site Location
0 2,000 4,000
Feet
Legend
Property Boundary
M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_2SA_2020\Fig 01 Site Location Map.mxd, REVISED: 01/20/2021, SCALE: 1:24,000 when printed at 8.5x11 DRAWN BY: Tyler Harris ¯
Site Location
Environmental Resources Management
www.erm.com
ERM
Figure 1
Site Location
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Source: Esri - World Topoographic Map; NAD 1983 StatePlane California IV FIPS 0404 Feet 0 100 20050
Miles
¯
D
D
²
D
²
D
²
D
²
D
²
D
²
D
²
A
²
A
²
A
²A
²A
²A
²A
²A
²
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
@A@A
@A
@A
@A
@A
@A
@A
@A@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
MW-12
OB-07
OB-08
BIO-01
MW-01
MW-02
MW-03
MW-04
MW-05S
MW-06
MW-07
MW-08MW-09
MW-10
MW-11
MW-13
MW-14S
MW-15S
MW-17S
MW-18S
MW-19S
MW-20S
MW-21S
MW-22S
MW-23
T01-01
T01-02
T01-03
T02-01
T02-02
T02-03
MW-15D01
MW-20D01
MW-01D
MW-05D
MW-14D
MW-15D
MW-16D
MW-17D
MW-18D
MW-19D
MW-20D
MW-21D
T02-02D
IW-03
IW-05
IW-08
IW-01
IW-02
IW-04
IW-06
IW-07
VW-05
VW-01A/B
VW-02A/B
VW-03B
VW-04B
VW-06
VW-07
1152 G Street
Site
Former Lamoure's Dry Cleaners
Carbon Vessels
Equipment
Container
Security
Fence
Extent of Former Site Detail
CA-99
E St Fresno St
G StTuolumne St
H St
Stanislaus St
CITY WELL 22A
DRAWN BY: Tyler HarrisFILE: M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_2SA_2020\Fig 02 Site Map.mxd, REVISED: 01/24/2021 , SCALE: 1:2,760 when printed at 11x17 Legend
@A Shallow Monitoring Well
Ò> Deep Monitoring Well
Ò> D1 Deep Monitoring Well
A
²
Injection Well
D
² Vapor Extraction Well
D City Water Supply Well
SVE System Boundary
1152 G Street Property Boundary
Notes:

AST: Aboveground Storage Tank
PCE: Tetrachloroethene
Figure 2
Site Map
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Environmental Resources Management
www.erm.com ERM
0 250 500125
Feet
¯
Source: Esri World Imagery; NAD 1983 StatePlane California IV FIPS 0404 Feet Ò>
@A
@A
@A
@A
@A
@A
@A
Former
Concrete Pad
Fresno St
Former

PCE AST
BIO-01
MW-01
MW-12
OB-07
OB-08
MW-01D
Former Site Detail
0 25 5012.5
Feet
$
@A@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
"D°
"D°
"D°
"D°
"D°
"D°
"D°
!A
²
!A
²
!A
²!A
²!A
²!A
²!A
²!A
²
@A
@A
@A@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
MW-02
190.72
MW-05S
MW-08
190.48MW-09
190.55
MW-10
190.17
MW-11
191.01
MW-14S
190.73
MW-15S
190.27
MW-17S
190.48
MW-19S
190.43
MW-20S
190.09
MW-21S
190.66
MW-22S
190.76
MW-23
190.80
T01-01
190.55
IW-01
190.88
IW-02
190.80
IW-03
190.83
IW-04
190.82IW-05
190.82
IW-06
190.76
IW-07
190.77IW-08
190.71
Former Lamoure's
Dry Cleaners
Approximate
Gradient = 0.0004 ft/ft
CA-99
E St
Fresno St
Stanislaus St
H St
Tuolumne St
G St
191.0
190.5
BIO-01
MW-01
MW-03
MW-04
MW-06
MW-07
MW-12
MW-13
MW-18S
OB-07
OB-08
T01-02
T01-03
T02-01
T02-02
VB-01
VB-02
VW-01B
VW-02B
VW-03B
VW-04B
VW-05
VW-06
VW-07
Legend
@A Shallow Monitoring Well
!A
²
Injection Well
@A
Shallow Monitoring Well
to be Decommissioned/Abandoned
!A
² Injection Well
to be Decommissioned/Abandoned
"D° Vapor Extract Well
to be Decommissioned/Abandoned
Shallow Groundwater Contour (0.5 ft)
$ Groundwater Flow Direction
1152 G Street Property Boundary
FILE: M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_1SA_2021\Fig 03 Shallow GW 1SA 2021.mxd, REVISED: 06/25/2021 , SCALE: 1:2,880 when printed at 11x17 DRAWN BY: Kelly Lyons 0 240 480120
Feet
¯
Environmental Resources Management
www.erm.com
Source: Google Earth, flown 8/23/2018; NAD 1983 StatePlane California IV FIPS 0404 Feet ERM
Figure 3
Shallow Groundwater Elevations
April 2021
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Notes:

NA: Not accessible.
ft/ft = foot per foot.
* Groundwater elevation for MW-15S measured
6 April 2021.

Groundwater elevation in feet AMSL (Above
Mean Sea Level).
$
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>
Ò>Ò>
Ò>
Ò>
Ò>
Ò>
Former Lamoure's
Dry Cleaners
CA-99
E St
Fresno St
G St
Tuolumne St
Stanislaus St
H St
189.5
190.0
190.5
MW-15D01
190.23
MW-01D
MW-18D
MW-21D
T02-02D
T03-01D
MW-14D
190.76
MW-15D
190.41
MW-16D
190.54
MW-17D
190.44
MW-19D
190.47
MW-20D
189.29
MW-05D
NA
Legend
Ò> Deep Groundwater Monitoring Well
Ò> D1 Deep Groundwater Monitoring Well
Ò>
Deep/D1 Deep Groundwater Monitoring
Well to be Decommissioned/Abandoned
Deep Groundwater Contour (.5 ft)
$ Groundwater Flow Direction
1152 G Street Property Boundary
FILE: M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_1SA_2021\Fig 04 Deep GW 1SA 2021.mxd, REVISED: 06/02/2021 , SCALE: 1:3,400 when printed at 11x17 DRAWN BY: Kelly Lyons 0 280 560140
Feet
¯
Environmental Resources Management
www.erm.com
Source: Esri World Imagery; NAD 1983 StatePlane California IV FIPS 0404 Feet ERM
Figure 4
Deep Groundwater Elevations
April 2021
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Notes:

NA: Not accessible.

Groundwater elevations measured April 5, 2021.

Groundwater elevation in feet AMSL (Above Mean
Sea Level).

D1 Deep groundwater elevations not used for
contouring.

Approximate
Gradient = 0.002
@A
!A
²
!A
²
!A
²!A
²!A
²!A
²!A
²!A
²
@A
@A
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@A
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@A
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@A
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@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
"D°"D°
"D°"D°
"D°"D°
"D°"D°
"D°
"D°
"D°
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²
!A
²
!A
²!A
²!A
²!A
²!A
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MW-11
< 0.13
MW-14S

49.2 MW-23
< 0.13/< 0.13
MW-08

2.7MW-09

1.7 MW-10

4.0 MW-15S

84.7 MW-17S

33.8 MW-19S

26.6/25.6
MW-20S

5.0 MW-21S

16.6 MW-22S

0.81 T01-01

42.2 IW-01
< 0.13
IW-02

5.2 IW-03

2.6 IW-04

9.9 IW-05

27.5 IW-06
< 0.13
IW-07

4.3IW-08

3.2 CA-99
Fresno St
G St
Stanisiaus St
E St
H St
Tuolumne St
Former Lamoure's Dry Cleaners
50 BIO-01
MW-01
MW-02
MW-03
MW-04
MW-05S
MW-06
MW-07
MW-12
MW-13
MW-18S
OB-07
OB-08
T01-02
T01-03
T02-01
T02-02
VB-01
VB-02
VW-01AVW-01B
VW-02A
VW-02B
VW-03A
VW-03B
VW-04A
VW-04B
VW-05
VW-06
VW-07
Legend
@A Shallow Monitoring Well
!A
² Injection Well
@A
Shallow Monitoring Well
to be Decommissioned/Abandoned
!A
² Injection Well
to be Decommissioned/Abandoned
"D° Vapor Extraction Well
to be Decommissioned/Abandoned
PCE Contour
1152 G Street Property Boundary
FILE: M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_1SA_2021\Fig 05 Shallow PCE 1SA 2021.mxd, REVISED: 07/13/2021 , SCALE: 1:2,880 when printed at 11x17 DRAWN BY: Tyler Harris 0 250 500125
Feet
¯
Environmental Resources Management
www.erm.com
Source: Esri World Imagery; NAD 1983 StatePlane California IV FIPS 0404 Feet ERM
Figure 5
PCE Distribution in
Shallow Groundwater
April 2021
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Notes:

PCE: Tetrachloroethene.

Samples collected 5-7 April 2021.

All concentrations in micrograms per liter (µg/L).

34.3/35.8: Primary Result/Field Duplicate Result.
< 0.15: PCE not detected at or above the
laboratory detection limit.

High Speed Rail Authority will be operating an
SVE at the former Lamoure's Dry Cleaner.

Figure 6a
PCE Concentrations vs. Time - Shallow Groundwater
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
0 500
1,000
1,500
2,000
2,500 Concentration (μg/L)
Date
PCE Concentrations vs. Time - Shallow Groundwater
VW-01B
VW-03B
VW-04B
VW-05
MW-23
ISCO Remediation Pilot Test
ISCO Full Implementation Event
ISCO Full Implementation Event
Environmental Resources Management
www.erm.com
ERM
0 50
100
150
200
250
300
350
400
450
500 Concentration (μg/L)
Date
PCE Concentrations vs. Time - Shallow Groundwater
MW-05S
MW-15S
MW-17S
MW-18S
VW-06
MW-06
VW-02B
ISCO Remediation Pilot Test
Environmental Resources Management
www.erm.com
ERM
Figure 6b
PCE Concentrations vs. Time - Shallow Groundwater
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
ISCO Full Implementation Event
ISCO Full Implementation Event
Note: MW-06 was not sampled on 8 January, 22 April,
and 15 July 2019 due to the presence of an owl burrow.

Ò>
Ò>Ò>
Ò>
Ò>
Ò>
Ò>Ò>Ò>
Ò>
Ò>Ò>
Ò>
Ò>
MW-15D

7.9/7.9
MW-16D
< 0.13
MW-17D
< 0.13/< 0.13
MW-19D

4.8 MW-20D

3.9 MW-15D

0.99 CA-99
Fresno St
G St
Stanisiaus St
E St
H St
Tuolumne St
Former Lamoure's
Dry Cleaners
MW-01D
MW-18DMW-20D01
MW-21D
T02-02D
T03-01D
Legend
Ò> Deep Groundwater Monitoring Well
Ò> D1 Deep Groundwater Monitoring Well
Ò>
Deep/D1 Deep Groundwater Monitoring
Well to be Decommissioned/Abandoned
1152 G Street Property Boundary
FILE: M:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_1SA_2021\Fig 07 Deep PCE 1SA 2021.mxd, REVISED: 06/02/2021 , SCALE: 1:3,601 when printed at 11x17 DRAWN BY: Kara Batdorff 0 300 600150
Feet
¯
Environmental Resources Management
www.erm.com
Source: Esri World Imagery; NAD 1983 StatePlane California IV FIPS 0404 Feet ERM
Figure 7
PCE Distribution in
Deep Groundwater
April 2021
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Notes:

PCE: Tetrachloroethene.

Samples collected April 5-7, 2021.

All concentrations in micrograms per liter (µg/L).

5.9/6.1: Primary Result/Field Duplicate Result.
< 0.15: PCE not detected at or above the
laboratory detection limit.
0 20
40 60
80 100
120
Concentration (μg/L)
Date
PCE Concentrations vs. Time - Deep Groundwater
MW-15D
MW-15D01
MW-17D
MW-19D
MW-20D
ISCO Remediation Pilot Test
I
SCO Full Implementation Event
ERM
Figure 8
PCE Concentrations vs. Time - Deep Groundwater
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
ISCO Full Implementation Event
Note: MW‐15D01 was not samped on 24 April 2019 due to an obstruction present in the well casing. MW‐20D is sampled semi‐annually.

Environmental Resources Management
www.erm.com
0 500
1,000
1,500
2,000
2,500
0 50
100
150
200
250
0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 Operation Time (Hours)
Influent PCE PID Reading
Cumulative PCE Mass Removed
Figure 9
Time vs. Influent PCE Concentration and Cumulative
Mass Removed
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Influent PCE Concentrations as PID Readings (ppmv)
Cumulative PCE Mass Removed (lb)
lb = pound
PCE = tetrachloroethene
PID = photoionization detector
ppmv = parts per million by volume
DRAWN BY: GISM:\Projects\Univar\Fresno CA (G Street) S052\maps\GWMReport_1SA_2021\Fig 10 Shallow PCE Comparison 1SA 2021.mxd Notes:

PCE = Tetrachloroethene
ISCO injections occured in June 2015, November
2017, and November 2018.

Contours dashed where inferred.

All concentrations in micrograms per liter (µg/L).

34.3/35.8 = Primary Result/Field Duplicate Result
< 0.15: PCE not detected at or above the
laboratory detection limit.

Figure 10
Pre/Post-ISCO PCE Distribution
in Shallow Groundwater
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
@A
@A
@A
@A@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
D°D°
D°D°
D°D°
D°
D°
D°
D°
D° A
²A
²A
²A
²A
²A
²A
²A
²
@A
Lamoure's Dry Cleaners
MW-10
10 MW-20S

1.30 MW-22S

3.4 MW-07

1.0 MW-09

0.90 OB-07

0.79 T01-02
< 0.50
T02-01

0.64 T02-02

0.90 MW-11
25 MW-12
29 MW-13
48 MW-15S
100
MW-18S
57 MW-19S
26 MW-21S
22MW-06
37 MW-08
37 T01-01
16 MW-14S
290
MW-17S
74 OB-08
80 MW-05S
140
VW-06
86 VW-07
23 VW-01B
330
VW-02B
300
VW-03B
210
VW-04B
880
VW-05
940
IW-01
150
IW-02
280
IW-03
260
IW-04
290
IW-05
190
IW-6
560
IW-07
150
IW-08
160
MW-23
1,200
500
50 100
50 100
CA-99
E St
Stanislaus St
Fresno St
H St
Tuolumne St
G St
February - March 2015
Source: Esri World Imagery; NAD 1983 StatePlane California IV FIPS 0404 Feet Environmental Resources Management
www.erm.com ERM
@A@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
@A
"D°
"D°
"D°
"D°
"D°
"D°
"D°
!A
²
!A
²
!A
²!A
²!A
²!A
²!A
²!A
²
@A
@A
@A@A
@A@A
@A
@A
@A
@A
@A@A
@A
@A
@A
@A
@A
MW-11
< 0.13
MW-14S

49.2 MW-23
< 0.13/< 0.13
MW-08

2.7MW-09

1.7 MW-10

4.0 MW-15S

84.7 MW-17S

33.8 MW-19S

26.6/25.6
MW-20S

5.0 MW-21S

16.6 MW-22S

0.81 T01-01

42.2 IW-01
< 0.13
IW-02

5.2 IW-03

2.6 IW-04

9.9 IW-05

27.5 IW-06
< 0.13
IW-07

4.3IW-08

3.2 50
CA-99
E St
Stanislaus St
Fresno St
H St
Tuolumne St
G St
BIO-01
MW-01
MW-03
MW-04
MW-06
MW-07
MW-12
MW-13
MW-18S
OB-07
OB-08
T01-02
T02-01
T02-02
VW-01B
VW-02B
VW-03B
VW-04B
VW-05
VW-06
VW-07
MW-05S
April 2021
Legend
@A Shallow Groundwater Monitoring Well
A
²
Injection Well
D° Vapor Extraction Well
1152 G Street Property Boundary
PCE Concentration in Shallow Groundwater
50 µg/L
100 µg/L
500 µg/L
0 250 500125
Feet
¯
0 275 550137.5
Feet
¯
Lamoure's Dry Cleaners

TABLES

Table 1
Monitoring and Reporting Program Requirements
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Well Water Level
Measurements Suite A Notes
IW-01  SA
IW-02  SA
IW-03  SA
IW-04  SA
IW-05  SA
IW-06  SA
IW-07  SA
IW-08  SA
MW-02 
MW-05D 
MW-05S  SA
MW-07  SA
MW-08  SA
MW-09  SA
MW-10  SA
MW-11  SA
MW-12  SA
MW-14D 
MW-14S  SA
MW-15D  SA
MW-15D01  SA
MW-15S  SA
MW-16D  SA
MW-17D  SA
MW-17S  SA
MW-19D  SA
MW-19S  SA
MW-20D  SA
MW-20D01  SA
MW-20S  SA
MW-21S  SA
MW-22S  SA
MW-23  SA
T01-01  SA
Notes:
 = Sample
Suite A (Method) = Volatile organic compounds (8260B)
CV-RWQCB = Central Valley Regional Water Quality Control Board HSRA = High Speed Railway Authority
SA = Semiannually; March/April, September/October
Not sampled, well to be sampled next semiannual event per CV-RWQCB.

Not sampled, well to be sampled following reinstallation as MW-12R by HSRA.

No access, well blocked.

Not sampled, well to be sampled next semiannual event per CV-RWQCB.

No access, well blocked.

ERM Page 1 of 1 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 2
Monitoring Well Construction Details
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
BIO-01 287.41 -- -- 4 104.34 -- -- -- --
IW-01 288.21 185 - 160 10 4 128 0.02 103 - 128 102 - 128 99 - 102 IW-02 287.39 185 - 160 10 4 131 0.02 103 - 128 101 - 127.5 98 - 101 IW-03 287.48 182 - 147 10 4 140 0.02 105 - 140 103 - 140 100 - 103 IW-04 287.33 182 - 147 10 4 140 0.02 105 - 140 104 - 140 101 - 104 IW-05 287.30 183 - 148 10 4 139.5 0.02 105 - 140 103 - 139.5 100 - 103 IW-06 287.51 183 - 148 10 4 140 0.02 105 - 140 104 - 140 101 - 104 IW-07 287.14 182 - 147 10 4 140 0.02 105 - 140 104 - 140 101 - 104 IW-08 287.40 182 - 147 10 4 140 0.02 105 - 140 104 - 140 101 - 104 MW-01 287.42 201 - 181 10 4 106 0.02 86 - 106 83 - 106 78 - 83 MW-01D 287.48 111 - 101 6 2 195 0.02 176 - 186 171 - 187 166 - 171 MW-02 286.24 201 - 181 10 4 105 0.02 85 - 105 82 - 105 77 - 82 MW-03 288.38 201 - 181 10 4 107 0.02 87 - 107 84 - 107 79 - 84 MW-04 288.78 202 - 177 8 2 112 0.02 87 - 112 84 - 112 79 - 84 MW-05D 285.75 106 - 96 8 2 202 0.02 180 - 190 177 - 191a 172 - 177
MW-05S 285.93 199 - 174 8 2 112 0.02 87 - 112 84 - 112 79 - 84 MW-06 286.54 200 - 175 8 2 112 0.02 87 - 112 84 - 112 79 - 84 MW-07 287.57 199 - 174 8 2 114 0.02 89 - 114 86 - 114 81 - 86 MW-08 285.94 198 - 173 8 2 113 0.02 88 - 113 85 - 113 80 - 85 MW-09 284.67 195 - 170 8 2 115 0.02 90 - 115 87 - 115 82 - 87 MW-10 284.56 195 - 170 8 2 115 0.02 90 - 115 87 - 115 82 - 87 MW-11 288.59 199 - 174 8 2 115 0.02 90 - 115 87 - 115 82 - 87 MW-12 287.54 183 - 163 10 2 150 0.02 105 - 125 103 - 105 101 - 103 MW-13 287.78 183 - 163 10 2 150 0.02 105 - 125 103 - 105 101 - 103 MW-14D 287.85 104 - 94 8 2 206 0.02 184 - 194 181 - 195b 176 - 181
MW-14S 287.82 168 - 153 8 2 135 0.02 120 - 135 117 - 135 112 - 117 MW-15D 285.85 98 - 88 6 2 210 0.02 188 - 198 185 - 199c 180 - 185
MW-15D01 285.27 -25 / -30 6 2 315 0.02 310 - 315 308 - 315 305 - 308 MW-15S 285.40 165 - 150 8 2 135 0.02 120 - 135 117 - 135 112 - 117 MW-16D 285.17 133 - 123 8 2 182 0.02 152 - 162 149 - 163d 144 - 149
MW-17D 285.87 97 - 87 8 2 202 0.02 189 - 199 186 - 199 181 - 186 MW-17S 285.92 181 - 166 8 2 120 0.02 105 - 120 102 - 120 97 - 102 MW-18D 286.57 117 - 107 6 2 195 0.02 170 - 180 165 - 181 160 - 165 MW-18S 286.11 166 - 151 6 2 136 0.02 120 - 135 117 - 136 115 - 117 MW-19D 285.68 71 - 61 6 2 255 0.02 215 - 225 210 - 226 205 - 210 MW-19S 285.32 165 - 150 6 2 136 0.02 120 - 135 117 - 136 115 - 117 MW-20D 284.43 17 - 7 6 2 290 0.02 267 - 277 262 - 277 257 - 262 MW-20D01 284.46 -21 / -31 6 2 325 0.02 305 - 315 300 - 316 295 - 300 MW-20S 284.36 164 - 149 6 2 136 0.02 120 - 135 117 - 136 115 - 117 MW-21D 287.77 103 - 88 8 2 200.5 0.01 185 - 200 180 - 200.5 175 - 180 MW-21S 287.38 167 - 152 8 2 145 0.01 120 - 135 115 - 145 110 - 115 MW-22S 289.31 169 - 154 8 2 160 0.01 120 - 135 115 - 160 110 - 115 MW-23 287.57 183 - 158 10 4 130 0.02 105 - 130 104 - 130 101 - 104 OB-07 287.40 145 - 140 8 2 147 0.02 142 - 147 140 - 147 3 - 140 OB-08 286.42 196 - 156 12 6 135 0.04 90 - 130 85 - 135 83 - 85 T01-01 285.98 192 - 172 8 2 114 0.02 94 - 114 92 - 114 91 - 90 T01-02 273.58 192 - 172 8 2 102 0.02 82 - 102 80 - 107 79 - 80 Screen
Opening
(inches)
Sand Pack
Interval
(ft bgs)
Bentonite
Interval
(ft bgs)
Well
Top of
Casing
Elevation
(ft amsl)
Borehole
Diameter
(inches)
Casing
Diameter
(inches)
Total Depth
(feet bgs)
Screen
Interval
Elevation
(ft amsl)
Screened
Interval
(ft bgs)
ERM Page 1 of 2 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 2
Monitoring Well Construction Details
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Screen
Opening
(inches)
Sand Pack
Interval
(ft bgs)
Bentonite
Interval
(ft bgs)
Well
Top of
Casing
Elevation
(ft amsl)
Borehole
Diameter
(inches)
Casing
Diameter
(inches)
Total Depth
(feet bgs)
Screen
Interval
Elevation
(ft amsl)
Screened
Interval
(ft bgs)
T01-03 288.20 160 - 140 8 2 150 0.02 128 - 148 126 - 148 124 - 126 T02-01 287.22 152 - 137 8 2 155 0.02 135 - 150 133 - 150 131 - 133 T02-02 290.14 155 - 140 8 2 160 0.02 135 - 150 133 - 150 131 - 133 T02-02D 290.15 112 - 102 8 2 188 0.02 178 - 188 175 - 188 170 - 175 T02-03 288.90 154 - 139 8 2 155 0.02 135 - 150 133 - 150 131 - 133 T03-01D 286.20 126 - 116 8 2 185 0.02 160 - 170 157 - 170e 152 - 157
VW-01B 288.27 198 - 163 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-02B 287.86 198 - 163 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-03B 287.40 197 - 162 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-04B 287.35 197 - 162 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-05 287.23 197 - 162 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-06 287.37 197 - 162 10 2 150 0.02 90 - 125 90 - 125 80 - 90 VW-07 287.23 197 - 162 10 2 150 0.02 90 - 125 90 - 125 80 - 90 Notes:
-- = Not measured
ft amsl = Feet above mean sea level
ft bgs = Feet below ground surface
a Bentonite plug from 191-202 ft bgs
b Bentonite plug from 195-206 ft bgs
c Bentonite plug from 199-210 ft bgs
d Bentonite plug from 163-182 ft bgs
e Bentonite plug from 170-185 ft bgs
Top of casing elevation based on April 2015 survey.

ERM Page 2 of 2 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 3
Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Well ID Date
Measuring Point
Elevation
(feet amsl)
Depth to Water
(feet btoc)
Groundwater
Elevation
(feet amsl)
IW-01 04/05/2021 288.21 97.33 190.88
IW-02 04/05/2021 287.39 96.59 190.80
IW-03 04/05/2021 287.48 96.65 190.83
IW-04 04/05/2021 287.33 96.51 190.82
IW-05 04/05/2021 287.30 96.48 190.82
IW-06 04/05/2021 287.51 96.75 190.76
IW-07 04/05/2021 287.14 96.37 190.77
IW-08 04/05/2021 287.40 96.69 190.71
MW-02 04/05/2021 286.24 95.52 190.72
MW-05D 04/05/2021 285.75 NA NA
MW-05S 04/05/2021 285.93 NA NA
MW-08 04/05/2021 285.94 95.46 190.48
MW-09 04/05/2021 284.67 94.12 190.55
MW-10 04/05/2021 284.56 94.39 190.17
MW-11 04/05/2021 288.59 97.58 191.01
MW-14D 04/05/2021 287.85 97.09 190.76
MW-14S 04/05/2021 287.82 97.09 190.73
MW-15D 04/05/2021 285.85 95.44 190.41
MW-15D01 04/05/2021 285.27 95.04 190.23
MW-15S 04/06/2021 285.40 95.13 190.27
MW-16D 04/05/2021 285.17 94.63 190.54
MW-17D 04/05/2021 285.87 95.43 190.44
MW-17S 04/05/2021 285.92 95.44 190.48
MW-19D 04/05/2021 285.68 95.21 190.47
MW-19S 04/05/2021 285.32 94.89 190.43
MW-20D 04/05/2021 284.43 95.14 189.29
MW-20S 04/05/2021 284.36 94.27 190.09
MW-21S 04/05/2021 287.38 96.72 190.66
MW-22S 04/05/2021 289.31 98.55 190.76
MW-23 04/05/2021 287.57 96.77 190.80
T01-01 04/05/2021 285.98 95.43 190.55
Notes:
amsl = Above mean sea level
btoc = Below top of casing
NA = Not accessible
ERM Page 1 of 1 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 4
Groundwater Field Parameters
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Well ID Sample
Date
Conductivity
(µS/cm)
Dissolved
Oxygen
(mg/L)
Oxidation-
Reduction
Potential
(mV)
pH
(units)
Temperature
(oC)
Total Purge
Volume
(gallons)
IW-01 4/7/2021 1,125 1.93 654.1 7.12 24.0 0.79
IW-02 4/7/2021 981 1.69 648.1 7.05 23.7 0.79
IW-03 4/7/2021 760 2.51 521.7 7.12 23.9 1.27
IW-04 4/7/2021 751 0.50 603.6 7.15 23.4 1.11
IW-05 4/7/2021 684 0.49 496.9 7.07 23.3 1.11
IW-06 4/7/2021 1,039 3.53 641.7 7.28 24.6 0.79
IW-07 4/7/2021 875 4.65 527.1 7.17 22.4 0.79
IW-08 4/7/2021 944 4.85 582.3 7.39 22.6 0.79
MW-05S -- -- -- -- -- -- --
MW-08 4/6/2021 1,093 6.31 90.0 7.10 24.1 0.79
MW-09 4/5/2021 630 6.37 86.1 7.39 24.4 0.79
MW-10 4/6/2021 543 5.67 187.4 7.09 20.7 0.79
MW-11 4/7/2021 2,980 7.12 662.1 6.89 20.5 0.79
MW-14S 4/7/2021 1,179 0.84 593.3 7.05 22.6 0.79
MW-15D 4/6/2021 740 0.98 -37.5 11.07 22.3 0.79
MW-15D01 4/5/2021 480 1.21 111.3 7.20 23.7 1.27
MW-15S 4/6/2021 657 3.53 70.1 7.17 23.0 0.79
MW-16D 4/5/2021 704 5.21 92.9 7.18 25.2 0.55
MW-17D 4/6/2021 514 3.25 118.6 7.42 11.1 0.40
MW-17S 4/6/2021 801 4.72 64.7 7.12 24.4 0.79
MW-19D 4/6/2021 546 1.37 -6.1 7.41 23.9 0.79
MW-19S 4/6/2021 671 4.18 43.9 7.31 23.8 0.79
MW-20D 4/6/2021 603 1.16 61.6 7.31 23.4 1.11
MW-20S 4/6/2021 628 4.42 96.6 7.22 22.3 1.11
MW-21S 4/6/2021 890 2.54 439.2 7.24 24.6 1.11
MW-22S 4/6/2021 614 5.71 125.9 7.05 22.1 0.95
MW-23 4/7/2021 1,136 5.73 670.8 7.17 24.0 0.79
T01-01 4/6/2021 713 2.44 103.2 7.15 24.2 0.79
Notes:
-- = Well unable to be sampled
o C = Degrees Celsius
µS/cm = MicroSiemens per centimeter
mg/L = Milligrams per liter
mV = Millivolts
ERM Page 1 of 1 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 5
Volatile Organic Compounds Detected in Groundwater
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Location ID Sample Date 1,1-DCA 1,1-DCE 1,2-DCP 1,2-DCA BB BDCM BF CF DBCM PCE TCE

5.0 / 3.0 6.0 / 6.0 0.50 / 0.50 0.50 / 0.50 NE / NE NE / NE NE / NE NE / NE NE / NE 5.0 / 5.0 5.0 / 5.0 IW-01 04/07/2021 0.29 J < 0.13 0.19 J 4.4 < 0.13 < 0.13 1.3 < 0.13 < 0.13 < 0.13 < 0.13 IW-02 04/07/2021 < 0.13 < 0.13 < 0.13 0.98 < 0.13 < 0.13 0.95 < 0.13 < 0.13 5.2 < 0.13 IW-03 04/07/2021 0.23 J < 0.13 0.25 J 4.6 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 2.6 0.38 J IW-04 04/07/2021 0.14 J < 0.13 0.16 J 1.8 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 9.9 0.20 J IW-05 04/07/2021 < 0.13 < 0.13 < 0.13 0.58 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 27.5 1.1 IW-06 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.66 < 0.13 < 0.13 < 0.13 < 0.13 IW-07 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 4.3 < 0.13 IW-08 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.64 0.15 J < 0.13 3.2 < 0.13 MW-08 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 2.7 0.17 J MW-09 04/05/2021 < 0.13 0.19 J < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 1.7 < 0.13 MW-10 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.26 J < 0.13 4.0 < 0.13 MW-11 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 4.1 0.22 J 0.36 J < 0.13 < 0.13 MW-14S 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 49.2 1.8 MW-15D 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 7.9 0.31 J MW-15D (dup) 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 7.9 0.27 J MW-15D01 04/05/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.99 < 0.13 MW-15S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.30 J < 0.13 84.7 1.1 MW-16D 04/05/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 MW-17D 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 MW-17D (dup) 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 MW-17S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.21 J < 0.13 33.8 0.56 MW-19D 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 4.8 < 0.13 MW-19S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.20 J < 0.13 26.6 2.3 MW-19S (dup) 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.21 J < 0.13 25.6 2.3 MW-20D 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 3.9 0.23 J MW-20S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.22 J < 0.13 5.0 0.14 J MW-21S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 16.6 < 0.13 MW-22S 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 0.55 < 0.13 0.81 0.20 J MW-23 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 1.0 < 0.13 < 0.13 < 0.13 < 0.13 MW-23 (dup) 04/07/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 1.2 < 0.13 < 0.13 < 0.13 < 0.13 T01-01 04/06/2021 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 < 0.13 42.2 2.3 Notes: Abbreviation Compound
< = Compound not detected; method detection limit shown 1,1-DCA 1,1-Dichloroethane µg/L = Micrograms per liter 1,1-DCE 1,1-Dichloroethene
dup = Duplicate sample 1,2-DCA 1,2-Dichloroethane
MCLs = Maximum contaminant levels 1,2-DCP 1,2-Dichloropropane NE = Not established BB Bromobenzene
WQOs = Water quality objectives BDCM Bromodichloromethane Bolded values indicate concentrations above the Method Detection Limit. BF Bromoform Concentration exceeds the California MCL or the WQOs. CF Chloroform Concentrations reported in µg/L. DBCM Dibromochloromethane MCLs retrieved from California State Water Resources Control Board Maximum Contaminant Levels and Regulatory Dates for Drinking Water. PCE Tetrachloroethene WQOs retrieved from Waste Discharge Requirements Order R5-2015-0136 for Univar USA Inc. TCE Trichloroethene ERM Qualifiers:

J = Estimated result
ESW8260B analyses performed by SGS Laboratories, Orlando, Florida.

California MCLs / WQOs (µg/L)
ERM Page 1 of 1 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 6
Well Conditions
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Well Well Status Planned Action
IW-01 Lock missing Repair on hold
IW-02 One tab broken, lock missing Repair on hold
IW-03 Lock missing Repair on hold
IW-04 Lock missing Repair on hold
IW-05 Two tabs broken, lock missing Repair on hold
IW-06 Lock missing Repair on hold
IW-07 One bolt missing, apron dam aged, rim/lid broken, lock miss ing Repair on hold IW-08 One bolt missing, two tabs broken, apron damaged, rim/lid broken, lock missin g Repair on hold
MW-02 Good No repair necessary
MW-05D Not accessible No repair necessary
MW-05S Not accessible No repair necessary
MW-08 Lock missing Repair on hold
MW-09 Good No repair necessary
MW-10 Good No repair necessary
MW-11 Two bolt missing, lock missing Repair on hold
MW-14D Two bolts missing, lock missing Repair on hold
MW-14S One bolt missing, one tab broken, lock missing Repair on h old MW-15D One bolt missing, lock missing Repair on hold
MW-15D01 One tab stripped Repair on hold
MW-15S Good No repair necessary
MW-16D One bolt missing, one tab stripped, one tab broken Repair on hold MW-17D Two tabs stripped, lock missing Repair on hold
MW-17S Lock missing Repair on hold
MW-19D Two tabs stripped Repair on hold
MW-19S One bolt missing, one tab broken Repair on hold
MW-20D Two tabs stripped Repair on hold
MW-20S One tab stripped, one tab broken Repair on hold
MW-21S Two tabs broken Repair on hold
MW-22S One tab broken Repair on hold
MW-23 One bolt missing, two tabs b roken, lock missing Repair on h old T01-01 Two tabs stripped Repair on hold
Notes:

1. Select wells have been approved for deco mmissioning in anticipation of HSRA redevelopment and all well repairs are on hold until com pletion of redeveloopment activities.

HSRA = California High Speed Rail Authority
ERM 1 of 1 UNIVAR SOLUTIONS/0577677 - 7/8/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
12/31/12 3:20 PM 0.00 - 10 110.0 43.3 8.25 0.60 -- 0 141 7.20 4.10 -63.64 8.00 4.56 -81.82 6.90 3.93 -51. 32 6.90 3.93 -75.44 4.4 2.51 0.00 6.20 3.53 -40.91 9.51 16.02 0.00 0.00 0.00 1/2/13 3:30 PM 48.17 48.17 10 110.0 43.3 8.25 0.60 -- 0 141 7.80 4.45 -56.00 9.50 0.54 -90.00 9.00 0.51 -156 2.05 9.00 0.51 -1654.39 5.0 2.85 0.00 7.00 3.99 -40.00 10.80 18.20 0.46 0.23 0.46 1/4/13 4:00 PM 48.50 96.67 10 110.0 43.3 8.25 0.60 -- 0 141 7.70 4.39 -71.11 10.30 0.59 -128.89 10.70 0.61 - 1722.52 10.70 0.61 -1654.39 4.5 2.57 0.00 9.50 5.42 -111.11 9.72 16.38 0.42 0.21 0.88 1/7/13 3:30 PM 71.50 168.17 10 110.0 43.3 8.25 0.60 -- 0 141 7.90 4.50 -27.42 11.00 0.63 -77.42 12.20 0.70 -1 845.77 12.20 0.70 -1654.39 6.2 3.53 0.00 13.50 7.70 -117.74 13.39 22.57 0.8 5 0.29 1.73 1/9/13 3:30 PM 48.00 216.17 10 110.0 43.3 8.25 0.60 -- 0 141 10.00 5.70 -17.65 13.00 7.41 -52.94 14.00 7.98 - 88.93 14.00 7.98 -75.44 8.5 4.85 0.00 15.00 8.55 -76.47 18.36 30.94 0.78 0.3 92 . 5 1 1/11/13 2:50 PM 47.33 263.50 10 110.0 43.3 8.25 0.60 -- 0 141 5.40 3.08 40.00 8.90 5.07 1.11 9.80 5.59 -93.18 9 .80 5.59 -75.44 9.0 5.13 0.00 9.30 5.30 -3.33 19.44 32.76 0.82 0.41 3.33 1/14/13 4:00 PM 73.17 336.67 10 110.0 43.3 8.25 0.60 -- 0 141 5.50 3.14 -30.95 9.00 5.13 -114.29 10.00 5.70 -9 4.93 10.00 5.70 -75.44 4.2 2.39 0.00 9.50 0.00 -126.19 9.07 15.29 0.59 0.19 3 .92 1/16/13 2:30 PM 46.50 383.17 10 110.0 43.3 7.90 0.58 -- 0 169 12.00 6.84 -166.67 13.50 7.70 -200.00 7.00 3.99 9.03 7.00 3.99 -75.44 4.5 2.57 0.00 7.00 3.99 -55.56 9.72 16.38 0.48 0.25 4.4 0 1/17/13 4:50 PM 26.33 409.50 10 110.0 43.3 8.25 0.60 -- 0 141 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.2 2.39 0.00 0.00 0.00 100.00 9.07 15.29 0.21 0.19 4.61 1/25/13 12:30 PM 187.67 597.17 10 110.0 43.3 7.70 0.56 -- 0 185 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 3.5 2.00 0.00 0.00 0.00 100.00 7.56 12.74 1.66 0.21 6.27 1/28/13 4:45 PM 76.25 673.42 10 110.0 43.3 8.25 0.60 -- 0 141 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.1 2.34 0.00 0.00 0.00 100.00 8.86 14.92 0.60 0.19 6.87 1/30/13 5:00 PM 48.25 721.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 3.9 2.22 0.00 0.00 0.00 100.00 8.43 14.20 0.43 0.22 7.30 2/1/13 4:15 PM 47.25 768.92 10 110.0 43.3 7.70 0.56 -- 0 185 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.0 2.28 0.00 0.00 0.00 100.00 8.64 14.56 0.48 0.24 7.78 2/4/13 3:17 PM 71.03 839.95 10 110.0 43.3 7.80 0.57 -- 0 177 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 3.8 2.17 0.00 0.00 0.00 100.00 8.21 13.83 0.65 0.22 8.43 2/6/13 4:52 PM 49.58 889.53 10 110.0 43.3 7.85 0.57 -- 0 173 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.0 2.28 0.00 0.00 0.00 100.00 8.64 14.56 0.47 0.23 8.90 2/8/13 4:30 PM 47.63 937.17 10 110.0 43.3 7.80 0.57 -- 0 177 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.2 2.39 0.00 0.00 0.00 100.00 9.07 15.29 0.48 0.24 9.38 2/11/13 5:07 PM 72.62 1,009.78 10 110.0 43.3 7.80 0.57 -- 0 177 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.6 2.62 0.00 0.00 0.00 100.00 9.94 16.74 0.81 0.27 10.19 2/13/13 5:36 PM 48.48 1,058.27 10 110.0 43.3 7.85 0.57 -- 0 173 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.3 2.45 0.00 0.00 0.00 100.00 9.29 15.65 0.49 0.24 10.68 2/15/13 4:40 PM 47.07 1,105.33 10 110.0 43.3 7.80 0.57 -- 0 177 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.51 0.26 11.19 2/18/13 4:10 PM 71.50 1,176.83 10 110.0 43.3 7.60 0.55 -- 0 193 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.92 0.31 12.1 1 2/20/13 2:25 PM 46.25 1,223.08 10 110.0 43.3 7.60 0.55 -- 0 193 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.55 0.28 12.66 2/22/13 5:05 PM 50.67 1,273.75 10 110.0 43.3 7.70 0.56 -- 0 185 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.60 0.28 13.2 6 2/25/13 4:24 PM 71.32 1,345.07 10 110.0 43.3 7.70 0.56 -- 0 185 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.1 2.91 0.00 0.00 0.00 100.00 11.02 18.56 0.92 0.31 14.1 8 2/27/13 2:54 PM 46.50 1,391.57 10 110.0 43.3 7.60 0.55 -- 0 193 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.57 0.30 14.7 5 3/1/13 6:07 PM 51.22 1,442.78 10 110.0 43.3 7.70 0.56 -- 0 185 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.63 0.30 15.3 8 3/4/13 5:58 PM 71.85 1,514.63 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.81 0.27 16.1 9 3/6/13 8:50 AM 38.87 1,553.50 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.40 0.25 16.60 3/8/13 5:51 PM 57.02 1,610.52 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.63 0.27 17.2 3 3/11/13 6:00 PM 72.15 1,682.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.75 0.25 17.97 3/13/13 6:34 PM 48.57 1,731.23 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.53 0.26 18.5 0 3/15/13 5:17 PM 46.72 1,777.95 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.54 0.28 19.0 4 3/18/13 5:33 PM 72.27 1,850.22 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.80 0.27 19.8 4 3/20/13 6:00 PM 48.45 1,898.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.56 0.28 20.3 9 3/22/13 7:00 PM 49.00 1,947.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.55 0.27 20.9 5 3/25/13 6:21 PM 71.35 2,019.02 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.80 0.27 21.7 5 3/27/13 6:04 PM 47.72 2,066.73 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.55 0.28 22.3 0 3/29/13 3:00 PM 44.93 2,111.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.54 0.29 22.8 4 4/1/13 5:45 PM 74.75 2,186.42 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.1 2.91 0.00 0.00 0.00 100.00 11.02 18.56 0.88 0.28 23.7 2 4/3/13 6:00 PM 48.25 2,234.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.52 0.26 24.2 4 4/5/13 5:27 PM 47.45 2,282.12 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.54 0.27 24.7 7 4/8/13 5:15 PM 71.80 2,353.92 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.79 0.27 25.5 7 4/10/13 6:30 PM 49.25 2,403.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.59 0.29 26.1 6 4/12/13 7:27 PM 48.95 2,452.12 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.1 2.91 0.00 0.00 0.00 100.00 11.02 18.56 0.57 0.28 26.7 3 4/15/13 8:48 AM 61.35 2,513.47 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.69 0.27 27.4 2 4/17/13 3:26 PM 54.63 2,568.10 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.63 0.28 28.0 5 4/19/13 3:41 PM 48.25 2,616.35 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.58 0.29 28.6 3 4/22/13 3:46 PM 72.08 2,688.43 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.86 0.29 29.4 9 4/24/13 3:22 PM 47.60 2,736.03 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.55 0.28 30.0 4 4/26/13 8:48 AM 41.43 2,777.47 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.2 2.39 0.00 0.00 0.00 100.00 9.07 15.29 0.40 0.23 30.44 4/29/13 2:15 PM 77.45 2,854.92 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.2 3.53 0.00 0.00 0.00 100.00 13.39 22.57 1.11 0.34 31.5 5 Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data ERM Page 1 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 5/1/13 11:45 AM 45.50 2,900.42 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.5 3.71 0.00 0.00 0.00 100.00 14.04 23.66 0.68 0.36 32.2 3 5/3/13 11:00 AM 47.25 2,947.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.8 3.88 0.00 0.00 0.00 100.00 14.69 24.75 0.74 0.38 32.9 7 5/6/13 7:05 PM 80.08 3,027.75 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.8 3.31 0.00 0.00 0.00 100.00 12.53 21.11 1.07 0.32 34.0 4 5/8/13 6:00 PM 46.92 3,074.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.4 3.08 0.00 0.00 0.00 100.00 11.67 19.66 0.58 0.30 34.6 2 5/10/13 5:30 PM 47.50 3,122.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.6 3.19 0.00 0.00 0.00 100.00 12.10 20.38 0.61 0.31 35.2 3 5/13/13 5:17 PM 71.78 3,193.95 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.6 3.19 0.00 0.00 0.00 100.00 12.10 20.38 0.93 0.31 36.1 6 5/15/13 4:05 PM 46.80 3,240.75 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.5 3.14 0.00 0.00 0.00 100.00 11.88 20.02 0.59 0.30 36.7 5 5/17/13 6:58 PM 50.88 3,291.63 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.7 3.25 0.00 0.00 0.00 100.00 12.31 20.75 0.67 0.31 37.4 2 5/20/13 6:22 PM 71.40 3,363.03 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.9 3.36 0.00 0.00 0.00 100.00 12.75 21.48 0.97 0.33 38.3 9 5/22/13 6:45 PM 48.38 3,411.42 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.8 3.31 0.00 0.00 0.00 100.00 12.53 21.11 0.65 0.32 39.0 3 5/24/13 5:23 PM 46.63 3,458.05 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.1 3.48 0.00 0.00 0.00 100.00 13.18 22.20 0.65 0.34 39.6 9 5/27/13 4:42 PM 71.32 3,529.37 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.3 3.59 0.00 0.00 0.00 100.00 13.61 22.93 1.03 0.35 40.7 2 5/29/13 5:48 PM 49.10 3,578.47 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.2 3.53 0.00 0.00 0.00 100.00 13.39 22.57 0.70 0.34 41.4 2 5/31/13 6:18 PM 48.50 3,626.97 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.5 3.71 0.00 0.00 0.00 100.00 14.04 23.66 0.73 0.36 42.1 5 6/3/13 6:30 PM 72.20 3,699.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.5 3.14 0.00 0.00 0.00 100.00 11.88 20.02 0.91 0.30 43.0 6 6/5/13 7:46 PM 49.27 3,748.43 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.57 0.28 43.6 3 6/7/13 12:42 PM 40.93 3,789.37 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.1 2.91 0.00 0.00 0.00 100.00 11.02 18.56 0.48 0.28 44.1 1 6/17/13 10:50 AM 238.13 4,027.50 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 2.58 0.26 46.6 9 6/19/13 6:41 AM 43.85 4,071.35 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.45 0.25 47.14 6/21/13 6:17 PM 59.60 4,130.95 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.67 0.27 47.8 1 6/24/13 6:54 PM 72.62 4,203.57 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.84 0.28 48.6 5 6/26/13 6:56 PM 48.03 4,251.60 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.54 0.27 49.1 9 6/28/13 6:46 PM 47.83 4,299.43 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.6 2.62 0.00 0.00 0.00 100.00 9.94 16.74 0.51 0.25 49.70 7/1/13 6:45 PM 71.98 4,371.42 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.81 0.27 50.5 1 7/3/13 7:23 AM 36.63 4,408.05 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.38 0.25 50.89 7/5/13 6:30 PM 59.12 4,467.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.65 0.27 51.5 4 7/6/13 6:08 AM 11.63 4,478.80 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.12 0.25 51.66 7/8/13 7:21 PM 61.22 4,540.02 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.68 0.27 52.3 4 7/10/13 5:54 AM 34.55 4,574.57 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.37 0.26 52.7 1 7/12/13 6:27 AM 48.55 4,623.12 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.9 2.79 0.00 0.00 0.00 100.00 10.59 17.84 0.55 0.27 53.2 6 7/15/13 6:51 PM 84.40 4,707.52 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.87 0.25 54.13 7/17/13 6:04 PM 47.22 4,754.73 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 0.1 0.06 0.00 0.00 0.00 100.00 0.22 0.36 0.01 0.01 54.15 7/19/13 7:43 PM 49.65 4,804.38 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.59 0.29 54.7 4 7/22/13 10:41 AM 62.97 4,867.35 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.1 2.91 0.00 0.00 0.00 100.00 11.02 18.56 0.74 0.28 55.4 8 7/24/13 8:17 AM 45.60 4,912.95 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.3 3.02 0.00 0.00 0.00 100.00 11.45 19.29 0.56 0.29 56.0 4 7/26/13 7:07 PM 58.83 4,971.78 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.64 0.26 56.6 7 7/29/13 4:11 PM 69.07 5,040.85 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.72 0.25 57.39 7/31/13 6:34 PM 50.38 5,091.23 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.8 2.74 0.00 0.00 0.00 100.00 10.37 17.47 0.56 0.27 57.9 4 8/2/13 5:14 PM 46.67 5,137.90 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 10.80 18.20 0.54 0.28 58.4 8 8/5/13 5:13 PM 71.98 5,209.88 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 97.44 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 7.8 4.45 0.00 0.00 0.00 100.00 16.85 28.39 1.29 0.43 59.77 8/7/13 3:11 PM 45.97 5,255.85 10 110.0 43.3 7.90 0.58 -- 0 169 0.30 0.17 97.14 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.11 0.58 60.8 8 8/9/13 5:48 PM 50.62 5,306.47 10 110.0 43.3 7.90 0.58 -- 0 169 0.50 0.29 95.93 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 12.3 7.01 0.00 0.00 0.00 100.00 26.57 44.77 1.43 0.68 62.3 2 8/12/13 6:10 PM 72.37 5,378.83 10 110.0 43.3 7.90 0.58 -- 0 169 0.90 0.51 94.19 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.5 8.84 0.00 0.00 0.00 100.00 33.48 56.42 2.58 0.86 64.9 0 8/14/13 1:06 PM 42.93 5,421.77 10 110.0 43.3 7.90 0.58 -- 0 169 1.40 0.80 91.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 16.8 9.58 0.00 0.00 0.00 100.00 36.29 61.15 1.66 0.93 66.5 6 8/16/13 9:59 AM 44.88 5,466.65 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 90.86 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 17.5 9.98 0.00 0.00 0.00 100.00 37.80 63.70 1.81 0.97 68.3 7 8/19/13 2:54 PM 76.92 5,543.57 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 90.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.3 11.00 0.00 0.00 0.00 100.00 41.69 70.25 3.42 1.07 71. 79 8/21/13 6:42 PM 51.80 5,595.37 10 110.0 43.3 7.90 0.58 -- 0 169 1.90 1.08 90.26 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.5 11.12 0.00 0.00 0.00 100.00 42.13 70.98 2.33 1.08 74. 11 8/23/13 5:21 PM 46.65 5,642.02 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 89.81 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.7 8.95 0.00 0.00 0.00 100.00 33.92 57.15 1.69 0.87 75.8 0 8/26/13 5:07 PM 71.77 5,713.78 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 89.13 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 13.8 7.87 0.00 0.00 0.00 100.00 29.81 50.23 2.28 0.76 78.0 8 8/28/13 1:44 PM 44.62 5,758.40 10 110.0 43.3 7.90 0.58 -- 0 169 1.20 0.68 90.40 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 12.5 7.13 0.00 0.00 0.00 100.00 27.00 45.50 1.28 0.69 79.3 6 ERM Page 2 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 8/30/13 7:21 PM 53.62 5,812.02 10 110.0 43.3 7.90 0.58 -- 0 169 1.40 0.80 87.61 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 11.3 6.44 0.00 0.00 0.00 100.00 24.41 41.13 1.39 0.62 80.7 6 9/2/13 5:26 PM 70.08 5,882.10 10 110.0 43.3 7.90 0.58 -- 0 169 1.20 0.68 88.89 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.8 6.16 0.00 0.00 0.00 100.00 23.33 39.31 1.74 0.60 82.5 0 9/4/13 5:06 PM 47.67 5,929.77 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 89.52 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.15 0.58 83.6 5 9/6/13 5:30 AM 36.40 5,966.17 10 110.0 43.3 7.90 0.58 -- 0 169 1.00 0.57 90.10 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.1 5.76 0.00 0.00 0.00 100.00 21.82 36.76 0.85 0.56 84.5 0 9/9/13 11:57 AM 78.45 6,044.62 10 110.0 43.3 7.90 0.58 -- 0 169 1.40 0.80 86.79 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.6 6.04 0.00 0.00 0.00 100.00 22.90 38.58 1.91 0.59 86.4 1 9/11/13 9:08 AM 45.18 6,089.80 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 86.11 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.8 6.16 0.00 0.00 0.00 100.00 23.33 39.31 1.12 0.60 87.5 3 9/13/13 8:47 AM 47.65 6,137.45 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 82.86 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.15 0.58 88.6 9 9/16/13 6:40 AM 69.88 6,207.33 10 110.0 43.3 7.90 0.58 -- 0 169 1.90 1.08 82.41 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.8 6.16 0.00 0.00 0.00 100.00 23.33 39.31 1.74 0.60 90.4 2 9/18/13 6:01 AM 47.35 6,254.68 10 110.0 43.3 7.90 0.58 -- 0 169 2.00 1.14 81.31 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.7 6.10 0.00 0.00 0.00 100.00 23.11 38.95 1.17 0.59 91.5 9 9/20/13 11:30 AM 53.48 6,308.17 10 110.0 43.3 7.90 0.58 -- 0 169 2.10 1.20 80.73 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.9 6.21 0.00 0.00 0.00 100.00 23.55 39.68 1.34 0.60 92.9 3 9/23/13 5:17 PM 77.78 6,385.95 10 110.0 43.3 7.90 0.58 -- 0 169 1.90 1.08 81.90 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.88 0.58 94.8 1 9/25/13 4:30 PM 47.22 6,433.17 10 110.0 43.3 7.90 0.58 -- 0 169 2.00 1.14 80.39 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.2 5.81 0.00 0.00 0.00 100.00 22.03 37.13 1.11 0.56 95.9 2 9/27/13 3:59 PM 47.48 6,480.65 10 110.0 43.3 7.90 0.58 -- 0 169 2.10 1.20 79.81 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.4 5.93 0.00 0.00 0.00 100.00 22.47 37.86 1.14 0.57 97.0 6 9/30/13 4:58 PM 72.98 6,553.63 10 110.0 43.3 7.90 0.58 -- 0 169 2.20 1.25 77.55 0.10 0.06 98.98 0.00 0.00 100.00 0.00 0.00 100.00 9.8 5.59 0.00 0.00 0.00 100.00 21.17 35.67 1.65 0.54 98.70 10/2/13 2:37 PM 45.65 6,599.28 10 110.0 43.3 7.90 0.58 -- 0 169 2.30 1.31 76.04 0.20 0.11 97.92 0.00 0.00 100.00 0.00 0.00 100.00 9.6 5.47 0.00 0.00 0.00 100.00 20.74 34.94 1.01 0.53 99.71 10/4/13 4:30 PM 49.88 6,649.17 10 110.0 43.3 7.90 0.58 -- 0 169 2.30 1.31 75.79 0.30 0.17 96.84 0.00 0.00 100.00 0.00 0.00 100.00 9.5 5.42 0.00 0.00 0.00 100.00 20.52 34.58 1.09 0.52 100.80 10/7/13 4:36 PM 72.10 6,721.27 10 110.0 43.3 7.90 0.58 -- 0 169 2.50 1.43 73.96 0.40 0.23 95.83 0.00 0.00 100.00 0.00 0.00 100.00 9.6 5.47 0.00 0.00 0.00 100.00 20.74 34.94 1.59 0.53 102.40 10/9/13 3:38 AM 35.03 6,756.30 10 110.0 43.3 7.90 0.58 -- 0 169 2.50 1.43 73.40 0.40 0.23 95.74 0.00 0.00 100.00 0.00 0.00 100.00 9.4 5.36 0.00 0.00 0.00 100.00 20.31 34.22 0.76 0.52 103.16 10/11/13 4:37 PM 60.98 6,817.28 10 110.0 43.3 7.90 0.58 -- 0 169 2.60 1.48 72.63 0.50 0.29 94.74 0.00 0.00 100.00 0.00 0.00 100.00 9.5 5.42 0.00 0.00 0.00 100.00 20.52 34.58 1.33 0.52 104.49 10/14/13 5:15 PM 72.63 6,889.92 10 110.0 43.3 7.90 0.58 -- 0 169 2.70 1.54 71.28 0.50 0.29 94.68 0.00 0.00 100.00 0.00 0.00 100.00 9.4 5.36 0.00 0.00 0.00 100.00 20.31 34.22 1.57 0.52 106.06 10/16/13 8:38 AM 39.38 6,929.30 10 110.0 43.3 7.90 0.58 -- 0 169 2.80 1.60 69.89 0.60 0.34 93.55 0.00 0.00 100.00 0.00 0.00 100.00 9.3 5.30 0.00 0.00 0.00 100.00 20.09 33.85 0.84 0.51 106.90 10/18/13 1:23 PM 52.75 6,982.05 10 110.0 43.3 7.90 0.58 -- 0 169 2.90 1.65 69.15 0.70 0.40 92.55 0.00 0.00 100.00 0.00 0.00 100.00 9.4 5.36 0.00 0.00 0.00 100.00 20.31 34.22 1.14 0.52 108.05 10/21/13 5:36 PM 76.22 7,058.27 10 110.0 43.3 7.90 0.58 -- 0 169 2.80 1.60 69.57 0.90 0.51 90.22 0.00 0.00 100.00 0.00 0.00 100.00 9.2 5.24 0.00 0.00 0.00 100.00 19.87 33.49 1.61 0.51 109.66 10/28/13 4:25 PM 166.82 7,225.08 10 110.0 43.3 7.90 0.58 -- 0 169 3.10 1.77 65.93 1.50 0.86 83.52 0.00 0.00 100.00 0.00 0.00 100.00 9.1 5.19 0.00 0.00 0.00 100.00 19.66 33.12 3.49 0.50 113.15 10/30/13 5:28 PM 49.05 7,274.13 10 110.0 43.3 7.90 0.58 -- 0 169 3.20 1.82 64.44 1.60 0.91 82.22 0.00 0.00 100.00 0.00 0.00 100.00 9.0 5.13 0.00 0.00 0.00 100.00 19.44 32.76 1.02 0.50 114.17 11/1/13 4:21 PM 46.88 7,321.02 10 110.0 43.3 7.90 0.58 -- 0 169 3.50 2.00 61.96 1.70 0.97 81.52 0.00 0.00 100.00 0.00 0.00 100.00 9.2 5.24 0.00 0.00 0.00 100.00 19.87 33.49 0.99 0.51 115.16 11/4/13 10:56 AM 66.58 7,387.60 10 110.0 43.3 7.90 0.58 -- 0 169 2.20 1.25 74.12 0.30 0.17 96.47 0.00 0.00 100.00 0.00 0.00 100.00 8.5 4.85 0.00 0.00 0.00 100.00 18.36 30.94 1.30 0.47 116.47 11/6/13 4:48 PM 53.87 7,441.47 10 110.0 43.3 7.90 0.58 -- 0 169 2.30 1.31 71.95 0.30 0.17 96.34 0.00 0.00 100.00 0.00 0.00 100.00 8.2 4.67 0.00 0.00 0.00 100.00 17.71 29.85 1.02 0.45 117.48 11/8/13 1:49 PM 45.02 7,486.48 10 110.0 43.3 7.90 0.58 -- 0 169 2.40 1.37 69.23 0.50 0.29 93.59 0.00 0.00 100.00 0.00 0.00 100.00 7.8 4.45 0.00 0.00 0.00 100.00 16.85 28.39 0.81 0.43 118.29 11/11/13 4:07 PM 74.30 7,560.78 10 110.0 43.3 7.90 0.58 -- 0 169 2.50 1.43 66.67 0.40 0.23 94.67 0.00 0.00 100.00 0.00 0.00 100.00 7.5 4.28 0.00 0.00 0.00 100.00 16.20 27.30 1.28 0.41 119.57 11/13/13 9:23 AM 41.27 7,602.05 10 110.0 43.3 7.90 0.58 -- 0 169 2.60 1.48 63.89 0.70 0.40 90.28 0.00 0.00 100.00 0.00 0.00 100.00 7.2 4.10 0.00 0.00 0.00 100.00 15.55 26.21 0.68 0.40 120.26 11/15/13 4:48 PM 55.42 7,657.47 10 110.0 43.3 7.90 0.58 -- 0 169 2.60 1.48 61.76 0.80 0.46 88.24 0.00 0.00 100.00 0.00 0.00 100.00 6.8 3.88 0.00 0.00 0.00 100.00 14.69 24.75 0.87 0.38 121.13 11/18/13 3:58 PM 71.17 7,728.63 10 110.0 43.3 7.90 0.58 -- 0 169 2.80 1.60 55.56 0.70 0.40 88.89 0.00 0.00 100.00 0.00 0.00 100.00 6.3 3.59 0.00 0.00 0.00 100.00 13.61 22.93 1.03 0.35 122.16 11/20/13 10:50 AM 42.87 7,771.50 10 110.0 43.3 7.90 0.58 -- 0 169 2.80 1.60 49.09 0.70 0.40 87.27 0.00 0.00 100.00 0.00 0.00 100.00 5.5 3.14 0.00 0.00 0.00 100.00 11.88 20.02 0.54 0.30 122.70 11/22/13 3:59 PM 53.15 7,824.65 10 110.0 43.3 7.90 0.58 -- 0 169 2.70 1.54 48.08 0.80 0.46 84.62 0.00 0.00 100.00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.64 0.29 123.34 11/25/13 12:32 PM 68.55 7,893.20 10 110.0 43.3 7.90 0.58 -- 0 169 2.90 1.65 38.30 0.80 0.46 82.98 0.00 0.00 100.00 0.00 0.00 100.00 4.7 2.68 0.00 0.00 0.00 100.00 10.15 17.11 0.74 0.26 124.08 11/27/13 4:28 PM 51.93 7,945.13 10 110.0 43.3 7.90 0.58 -- 0 169 2.70 1.54 28.95 0.80 0.46 78.95 0.00 0.00 100.00 0.00 0.00 100.00 3.8 2.17 0.00 0.00 0.00 100.00 8.21 13.83 0.45 0.21 124.53 11/29/13 4:52 PM 48.40 7,993.53 10 110.0 43.3 7.90 0.58 -- 0 169 2.80 1.60 20.00 0.90 0.51 74.29 0.00 0.00 100.00 0.00 0.00 100.00 3.5 2.00 0.00 0.00 0.00 100.00 7.56 12.74 0.39 0.19 124.92 12/2/13 4:29 PM 71.62 8,065.15 10 110.0 43.3 7.90 0.58 -- 0 169 2.70 1.54 25.00 0.80 0.46 77.78 0.00 0.00 100.00 0.00 0.00 100.00 3.6 2.05 0.00 0.00 0.00 100.00 7.78 13.10 0.59 0.20 125.52 12/4/13 9:57 AM 41.47 8,106.62 10 110.0 43.3 7.90 0.58 -- 0 169 2.70 1.54 -3.85 0.80 0.46 69.23 0.00 0.00 100.00 0.00 0.00 100.00 2.6 1.48 0.00 0.00 0.00 100.00 5.62 9.46 0.25 0.14 125.76 12/6/13 4:36 PM 54.65 8,161.27 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 2.5 1.43 0.00 0.00 0.00 100.00 5.40 9.10 0.31 0.14 126.08 12/9/13 12:26 PM 67.83 8,229.10 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.0 2.28 0.00 0.00 0.00 100.00 8.64 14.56 0.62 0.22 126.7 0 12/11/13 1:30 PM 49.07 8,278.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.51 0.25 127.2 1 12/13/13 1:25 PM 47.92 8,326.08 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 5.2 2.96 0.00 0.00 0.00 100.00 11.23 18.93 0.57 0.29 127. 79 12/16/13 3:26 PM 74.02 8,400.10 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 7.0 3.99 0.00 0.00 0.00 100.00 15.12 25.48 1.19 0.39 128. 98 12/18/13 4:30 PM 49.07 8,449.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 6.5 3.71 0.00 0.00 0.00 100.00 14.04 23.66 0.73 0.36 129. 71 12/20/13 3:15 PM 46.75 8,495.92 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 8.5 4.85 0.00 0.00 0.00 100.00 18.36 30.94 0.91 0.47 130. 63 12/23/13 2:40 PM 71.42 8,567.33 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 9.0 5.13 0.00 0.00 0.00 100.00 19.44 32.76 1.48 0.50 132. 11 12/25/13 3:55 PM 49.25 8,616.58 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 12.0 6.84 0.00 0.00 0.00 100.00 25.92 43.68 1.36 0.66 133 .47 12/27/13 3:42 PM 47.78 8,664.37 10 110.0 43.3 7.90 0.58 -- 0 169 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 17.0 9.69 0.00 0.00 0.00 100.00 36.72 61.88 1.87 0.94 135 .34 ERM Page 3 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 12/30/13 3:27 PM 71.75 8,736.12 10 110.0 43.3 7.90 0.58 -- 0 169 0.10 0.06 99.47 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.0 10.83 0.00 0.00 0.00 100.00 41.05 69.16 3.14 1.05 138 .48 1/1/14 3:00 PM 47.55 8,783.67 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 98.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.0 8.55 0.00 0.00 0.00 100.00 32.40 54.60 1.64 0.83 140. 12 1/3/14 3:13 PM 48.22 8,831.88 10 110.0 43.3 7.90 0.58 -- 0 169 0.30 0.17 97.69 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 13.0 7.41 0.00 0.00 0.00 100.00 28.08 47.32 1.44 0.72 141. 56 1/6/14 3:28 PM 72.25 8,904.13 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 98.33 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 12.0 6.84 0.00 0.00 0.00 100.00 25.92 43.68 2.00 0.66 143. 56 1/8/14 3:58 PM 48.50 8,952.63 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 98.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.0 5.70 0.00 0.00 0.00 100.00 21.60 36.40 1.12 0.55 144. 67 1/10/14 3:36 PM 47.63 9,000.27 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 95.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 4.0 2.28 0.00 0.00 0.00 100.00 8.64 14.56 0.44 0.22 145.11 1/13/14 4:36 PM 73.00 9,073.27 10 110.0 43.3 7.90 0.58 -- 0 169 0.60 0.34 86.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.76 0.25 145.87 1/15/14 1:37 PM 45.02 9,118.28 10 110.0 43.3 7.90 0.58 -- 0 169 1.20 0.68 87.37 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 9.5 5.42 0.00 0.00 0.00 100.00 20.52 34.58 0.98 0.52 146.8 5 1/17/14 4:37 PM 51.00 9,169.28 10 110.0 43.3 7.90 0.58 -- 0 169 1.00 0.57 71.43 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 3.5 2.00 0.00 0.00 0.00 100.00 7.56 12.74 0.41 0.19 147.26 1/20/14 3:43 PM 71.10 9,240.38 10 110.0 43.3 7.90 0.58 -- 0 169 1.00 0.57 66.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 3.0 1.71 0.00 0.00 0.00 100.00 6.48 10.92 0.49 0.17 147.75 1/22/14 4:36 PM 48.88 9,289.27 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 94.29 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 3.5 2.00 0.00 0.00 0.00 100.00 7.56 12.74 0.39 0.19 148.15 1/24/14 11:19 AM 42.72 9,331.98 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 93.33 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 3.0 1.71 0.00 0.00 0.00 100.00 6.48 10.92 0.30 0.17 148.44 1/27/14 3:54 PM 76.58 9,408.57 10 110.0 43.3 7.90 0.58 -- 0 169 0.20 0.11 92.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 2.5 1.43 0.00 0.00 0.00 100.00 5.40 9.10 0.44 0.14 148.88 1/29/14 4:03 PM 48.15 9,456.72 10 110.0 43.3 7.90 0.58 -- 0 169 0.40 0.23 93.33 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 6.0 3.42 0.00 0.00 0.00 100.00 12.96 21.84 0.67 0.33 149.5 5 1/31/14 11:30 AM 43.45 9,500.17 10 110.0 43.3 7.90 0.58 -- 0 169 0.60 0.34 91.43 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 7.0 3.99 0.00 0.00 0.00 100.00 15.12 25.48 0.70 0.39 150.2 5 2/3/14 4:24 PM 76.90 9,577.07 10 110.0 43.3 7.90 0.58 -- 0 169 1.20 0.68 88.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.0 5.70 0.00 0.00 0.00 100.00 21.60 36.40 1.77 0.55 152. 02 2/5/14 7:58 AM 39.57 9,616.63 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 86.25 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 0.73 0.44 152.7 5 2/6/14 4:42 PM 32.73 9,649.37 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 86.25 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 0.60 0.44 153.3 5 2/10/14 5:00 PM 96.30 9,745.67 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 86.25 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 1.77 0.44 155.1 2 2/12/14 12:45 PM 140.05 9,885.72 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 86.25 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 2.58 0.44 157.7 0 2/14/14 2:05 PM 49.33 9,935.05 10 110.0 43.3 7.90 0.58 -- 0 169 1.10 0.63 86.25 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 0.91 0.44 158.6 1 2/17/14 4:30 PM 74.42 10,009.47 10 110.0 43.3 7.90 0.58 -- 0 169 0.80 0.46 82.22 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 4.5 2.57 0.00 0.00 0.00 100.00 9.72 16.38 0.77 0.25 159.38 2/19/14 5:38 PM 49.13 10,058.60 10 110.0 43.3 7.90 0.58 -- 0 169 0.50 0.29 90.91 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 5.5 3.14 0.00 0.00 0.00 100.00 11.88 20.02 0.62 0.30 160.0 0 2/21/14 4:43 PM 47.08 10,105.68 10 110.0 43.3 7.90 0.58 -- 0 169 0.80 0.46 95.79 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.0 10.83 0.00 0.00 0.00 100.00 41.05 69.16 2.06 1.05 162 .06 2/24/14 5:00 PM 72.28 10,177.97 10 110.0 43.3 7.90 0.58 -- 0 169 0.80 0.46 95.29 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 17.0 9.69 0.00 0.00 0.00 100.00 36.72 61.88 2.83 0.94 164. 89 2/26/14 8:59 AM 39.98 10,217.95 10 110.0 43.3 7.90 0.58 -- 0 169 0.80 0.46 95.79 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.0 10.83 0.00 0.00 0.00 100.00 41.05 69.16 1.75 1.05 166 .64 2/28/14 2:19 PM 53.33 10,271.28 10 110.0 43.3 7.90 0.58 -- 0 169 0.80 0.46 95.43 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 17.5 9.98 0.00 0.00 0.00 100.00 37.80 63.70 2.15 0.97 168. 79 3/3/14 4:44 PM 74.42 10,345.70 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 91.43 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 17.5 9.98 0.00 0.00 0.00 100.00 37.80 63.70 3.00 0.97 171. 79 3/5/14 3:23 PM 46.65 10,392.35 10 110.0 43.3 7.90 0.58 -- 0 169 2.10 1.20 72.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 7.5 4.28 0.00 0.00 0.00 100.00 16.20 27.30 0.81 0.41 172.5 9 3/7/14 1:51 PM 46.47 10,438.82 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 81.05 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 9.5 5.42 0.00 0.00 0.00 100.00 20.52 34.58 1.02 0.52 173.6 1 3/10/14 5:17 PM 75.43 10,514.25 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 85.71 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.82 0.58 175. 43 3/12/14 8:52 AM 39.58 10,553.83 10 110.0 43.3 7.90 0.58 -- 0 169 1.90 1.08 78.89 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 9.0 5.13 0.00 0.00 0.00 100.00 19.44 32.76 0.82 0.50 176.2 5 3/14/14 5:40 PM 56.80 10,610.63 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 80.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.28 29.12 1.05 0.44 177.3 0 3/17/14 7:24 PM 73.73 10,684.37 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 85.71 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.78 0.58 179. 08 3/19/14 5:26 PM 46.03 10,730.40 10 110.0 43.3 7.90 0.58 -- 0 169 1.30 0.74 87.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.0 5.70 0.00 0.00 0.00 100.00 21.60 36.40 1.06 0.55 180. 14 3/21/14 5:47 PM 48.35 10,778.75 10 110.0 43.3 7.90 0.58 -- 0 169 1.40 0.80 86.27 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.2 5.81 0.00 0.00 0.00 100.00 22.03 37.13 1.14 0.56 181. 28 3/24/14 6:30 PM 72.72 10,851.47 10 110.0 43.3 7.90 0.58 -- 0 169 1.40 0.80 86.67 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.76 0.58 183. 03 3/26/14 6:21 PM 47.85 10,899.32 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 85.19 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.8 6.16 0.00 0.00 0.00 100.00 23.33 39.31 1.19 0.60 184. 22 3/28/14 6:03 PM 47.70 10,947.02 10 110.0 43.3 7.90 0.58 -- 0 169 1.90 1.08 82.73 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 11.0 6.27 0.00 0.00 0.00 100.00 23.76 40.04 1.21 0.61 185. 43 3/31/14 7:24 PM 73.35 11,020.37 10 110.0 43.3 7.90 0.58 -- 0 169 1.50 0.86 85.71 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 10.5 5.99 0.00 0.00 0.00 100.00 22.68 38.22 1.77 0.58 187. 21 4/2/14 3:31 PM 44.12 11,064.48 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 89.41 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 17.0 9.69 0.00 0.00 0.00 100.00 36.72 61.88 1.73 0.94 188. 93 4/4/14 10:04 AM 42.55 11,107.03 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 88.97 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 14.5 8.27 0.00 0.00 0.00 100.00 31.32 52.78 1.42 0.80 190. 35 4/7/14 6:42 PM 80.63 11,187.67 10 110.0 43.3 7.90 0.58 -- 0 169 1.70 0.97 86.92 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 13.0 7.41 0.00 0.00 0.00 100.00 28.08 47.32 2.41 0.72 192. 76 4/9/14 6:58 PM 48.27 11,235.93 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 88.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.0 8.55 0.00 0.00 0.00 100.00 32.40 54.60 1.67 0.83 194. 43 4/11/14 9:07 AM 38.15 11,274.08 10 110.0 43.3 7.90 0.58 -- 0 169 1.60 0.91 88.97 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 14.5 8.27 0.00 0.00 0.00 100.00 31.32 52.78 1.27 0.80 195. 71 4/14/14 3:37 PM 78.50 11,352.58 10 110.0 43.3 7.90 0.58 -- 0 169 1.80 1.03 88.16 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.2 8.66 0.00 0.00 0.00 100.00 32.84 55.33 2.75 0.84 198. 45 4/16/14 4:20 PM 48.72 11,401.30 10 110.0 43.3 7.90 0.58 -- 0 169 2.00 1.14 87.18 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 15.6 8.89 0.00 0.00 0.00 100.00 33.70 56.79 1.75 0.86 200. 20 4/18/14 3:18 PM 46.97 11,448.27 10 110.0 43.3 7.90 0.58 -- 0 169 2.10 1.20 85.91 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 14.9 8.49 0.00 0.00 0.00 100.00 32.19 54.24 1.61 0.82 201. 81 4/21/14 3:54 PM 72.60 11,520.87 10 110.0 43.3 7.90 0.58 -- 0 169 6.00 3.42 77.36 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 26.5 15.11 0.00 0.00 0.00 100.00 57.25 96.46 4.43 1.46 206 .24 4/23/14 4:27 PM 48.55 11,569.42 10 110.0 43.3 7.90 0.58 -- 0 169 6.00 3.42 80.00 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 30.0 17.10 0.00 0.00 0.00 100.00 64.81 109.20 3.35 1.66 20 9.59 ERM Page 4 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 4/25/14 4:15 PM 47.80 11,617.22 10 110.0 43.3 7.90 0.58 -- 0 169 6.30 3.59 67.69 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.5 11.12 0.00 0.00 0.00 100.00 42.13 70.98 2.15 1.08 211 .74 4/28/14 5:34 PM 73.32 11,690.53 10 110.0 43.3 7.90 0.58 -- 0 169 7.00 3.99 48.15 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 13.5 7.70 0.00 0.00 0.00 100.00 29.16 49.14 2.28 0.75 214. 02 4/30/14 4:04 PM 46.50 11,737.03 10 110.0 43.3 7.90 0.58 -- 0 169 6.50 3.71 69.05 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 21.0 11.97 0.00 0.00 0.00 100.00 45.37 76.44 2.25 1.16 216 .27 5/2/14 5:00 PM 48.93 11,785.97 10 110.0 43.3 7.90 0.58 -- 0 169 7.50 4.28 80.77 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 39.0 22.23 0.00 0.00 0.00 100.00 84.25 141.96 4.39 2.15 22 0.66 5/5/14 6:34 PM 73.57 11,859.53 10 110.0 43.3 7.90 0.58 -- 0 169 8.00 4.56 77.14 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 35.0 19.95 0.00 0.00 0.00 100.00 75.61 127.40 5.93 1.93 22 6.59 5/7/14 6:53 AM 36.32 11,895.85 10 110.0 43.3 7.90 0.58 -- 0 169 11.00 6.27 60.71 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 28.0 15.96 0.00 0.00 0.00 100.00 60.49 101.92 2.34 1.55 2 28.93 5/7/14 5:30 PM 10.62 11,906.47 10 110.0 43.3 7.90 0.58 -- 0 169 6.20 3.53 55.71 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 14.0 7.98 0.00 0.00 0.00 100.00 30.24 50.96 0.34 0.77 229. 27 5/9/14 7:44 AM 38.23 11,944.70 10 110.0 43.3 7.90 0.58 -- 0 169 6.50 3.71 65.79 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 19.0 10.83 0.00 0.00 0.00 100.00 41.05 69.16 1.67 1.05 230 .94 5/12/14 2:52 PM 79.13 12,023.83 10 110.0 43.3 7.90 0.58 -- 0 169 8.00 4.56 77.14 0.00 0.00 100.00 0.00 0.00 100.0 0 0.00 0.00 100.00 35.0 19.95 0.00 0.00 0.00 100.00 75.61 127.40 6.38 1.93 23 7.32 5/16/14 4:00 PM 97.13 12,120.97 42 110.0 43.3 16 1.17 1,745 152 149 115.00 65.55 23.33 16.00 9.12 89.33 7.00 3.9 9 23.25 0.00 0.00 100.00 150.0 85.50 0.00 1.00 0.57 99.33 324.04 546.01 29.6 4 7.32 266.96 5/18/14 2:05 PM 46.08 12,167.05 42 110.0 43.3 16 1.17 1,685 147 144 90.00 51.30 21.74 68.00 38.76 40.87 4.00 2.2 8 89.68 0.00 0.00 100.00 115.0 65.55 0.00 4.00 2.28 96.52 248.43 418.61 10.4 1 5.42 277.38 5/19/14 3:40 PM 25.58 12,192.63 42 110.0 43.3 16 1.17 1,724 150 147 90.00 51.30 29.69 50.00 28.50 60.94 30.00 17 .10 -5.26 0.00 0.00 100.00 128.0 72.96 0.00 18.00 10.26 85.94 276.52 465.93 6.58 6.18 283.96 10/17/14 1:10 PM 0.00 12,192.63 54 79.0 26.1 35 2.55 1,850 161 182 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 38.0 21.66 0.00 0. 00 0.00 100.00 86.81 146.28 0.00 0.00 283.96 10/20/14 3:00 PM 73.83 12,266.47 60 95.0 35.0 34 2.48 2,135 186 203 90.00 51.30 30.77 8.50 4.85 93.46 0. 00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0.00 0.00 100.00 288.43 486 .01 27.29 8.87 311.25 10/22/14 2:25 PM 47.42 12,313.88 60 91.0 32.8 10 0.73 1,982 172 170 120.00 68.40 9.09 72.00 41.04 45.45 40.00 22.80 44.44 0.00 0.00 100.00 132. 0 75.24 0.00 19.00 10.83 85.61 295.00 497.07 15.05 7.62 326.30 11/12/14 1:07 PM 0.00 12,313.88 6 66.0 18.9 6.0 0.44 475 41 42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 19.0 10.83 0.00 0. 00 0.00 100.00 44.48 74.95 0.00 0.00 326.30 11/14/14 2:30 PM 49.38 12,363.27 6.8 67.0 19.4 6.7 0.49 479 42 42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0 .00 0.00 100.00 327.13 551.22 4.32 2.10 330.62 11/17/14 1:05 PM 70.58 12,433.85 6.5 64.0 17.8 5.7 0.42 480 42 43 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 434.76 732.57 8.24 2.80 338.86 11/19/14 3:20 PM 50.25 12,484.10 7 68.0 20.0 5.90 0.43 480 42 42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 295.0 168.15 0.00 0.00 0.00 100.00 688.01 1159.29 9.22 4.40 348.08 11/24/14 3:40 PM 120.33 12,604.43 6.9 62.0 16.7 6.60 0.48 457 40 41 125.00 71.25 51.55 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 258.0 147.06 0.00 0.00 0.00 100.00 608.63 1025.55 18.87 3.76 366.96 11/26/14 3:40 PM 48.00 12,652.43 6.2 66.0 18.9 6.00 0.44 484 42 43 130.00 74.10 48.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 585.27 986.19 7.59 3.79 374.54 12/1/14 9:25 AM 113.75 12,766.18 7.7 69.0 20.6 5.90 0.43 480 42 42 165.00 94.05 8.33 19.00 10.83 89.44 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 419.01 706.03 12.69 2.68 387.23 12/3/14 11:08 AM 49.72 12,815.90 16 65.0 18.3 3.50 0.26 510 44 45 250.00 142.50 15.25 60.00 34.20 79.66 0.50 0.29 99.83 0.00 0.00 100.00 295. 0 168.15 0.00 0.00 0.00 100.00 691.94 1165.92 9.69 4.68 396.92 12/8/14 8:45 AM 117.62 12,933.52 24 58.0 14.4 3.00 0.22 388 34 34 290.00 165.30 7.94 105.00 59.85 66.67 0.40 0.23 99.87 0.00 0.00 100.00 315. 0 179.55 0.00 0.00 0.00 100.00 748.84 1261.80 19.08 3.89 416.00 12/10/14 12:00 AM 39.25 12,972.77 22 56.0 13.3 3.00 0.22 372 32 33 350.00 199.50 7.89 165.00 94.05 56.58 0.40 0.23 99.89 0.00 0.00 100.00 380. 0 216.60 0.00 0.00 0.00 100.00 906.87 1528.08 7.42 4.54 423.43 12/15/14 2:29 PM 134.48 13,107.25 25 55.0 12.8 3.00 0.22 512 45 46 135.00 76.95 10.00 80.00 45.60 46.67 10.00 5.70 93.33 0.00 0.00 100.00 150. 0 85.50 0.00 0.00 0.00 100.00 358.67 604.36 13.87 2.48 437.30 12/17/14 12:54 PM 46.42 13,153.67 28 55.0 12.8 3.00 0.22 387 34 34 260.00 148.20 10.34 150.00 85.50 48.28 0.00 0.00 100.00 0.00 0.00 100.00 29 0.0 165.30 0.00 0.00 0.00 100.00 693.43 1168.43 7.00 3.62 444.29 12/22/14 5:00 PM 124.10 13,277.77 30 56.0 13.3 1.50 0.11 329 29 29 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 200.0 114.00 0.00 0.00 0.00 100.00 477.30 804.25 10.84 2.10 455.14 12/25/14 1:25 PM 68.42 13,346.18 30 53.0 11.7 1.40 0.10 341 30 30 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 290.0 165.30 0.00 0.00 0.00 100.00 696.13 1172.99 9.09 3.19 464.22 12/29/14 3:15 PM 97.83 13,444.02 30 52.0 11.1 1.40 0.10 439 38 39 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 601.29 1013.17 14.48 3.55 478.70 12/31/14 2:06 PM 46.85 13,490.87 26 47.0 8.3 1.30 0.09 345 30 31 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 680.09 1145.95 6.22 3.19 484.92 1/5/15 3:43 PM 121.62 13,612.48 27 56.0 13.3 1.30 0.09 363 32 32 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 668.22 1125.95 16.40 3.24 501.32 1/7/15 2:06 PM 46.38 13,658.87 40 63.0 17.2 2.00 0.15 431 37 38 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 706.36 1190.22 7.77 4.02 509.09 1/11/15 12:00 AM 81.90 13,740.77 32 59.0 15.0 1.60 0.12 623 54 55 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 569.45 959.52 16.08 4.71 525.17 1/14/15 4:58 PM 88.97 13,829.73 4.6 59.0 15.0 4.60 0.34 436 38 39 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 569.45 959.52 12.41 3.35 537.58 1/19/15 1:40 PM 116.70 13,946.43 18 51.0 10.6 2.60 0.19 345 30 31 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 320.0 182.40 0.00 0.00 0.00 100.00 771.16 1299.40 17.54 3.61 555.12 1/21/15 2:50 PM 49.17 13,995.60 20.2 51.0 10.6 2.70 0.20 358 31 32 35.00 19.95 90.00 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 350.0 199.50 0.00 0.00 0.00 100.00 843.45 1 421.22 8.39 4.10 563.51 1/27/15 4:00 PM 145.17 14,140.77 23 59.0 15.0 2.30 0.17 339 29 30 106.00 60.42 50.70 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 510.13 859.57 13.94 2.31 577.45 1/29/15 3:48 PM 47.80 14,188.57 22 61.0 16.1 2.00 0.15 355 31 31 130.00 74.10 56.67 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 709.07 1194.79 6.65 3.34 584.10 2/2/15 3:20 PM 95.53 14,284.10 26 67.0 19.4 2.30 0.17 354 31 31 138.00 78.66 50.71 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 654.26 1102.43 12.10 3.04 596.20 2/4/15 3:13 PM 47.88 14,331.98 20 76.0 24.4 3.30 0.24 395 34 34 160.00 91.20 46.67 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 689.22 1161.33 7.05 3.53 603.25 2/9/15 3:40 PM 120.45 14,452.43 22 67.0 19.4 2.60 0.19 335 29 29 150.00 85.50 38.78 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 245.0 139.65 0.00 0.00 0.00 100.00 572.48 964.63 12.65 2.52 615.90 2/11/15 1:00 PM 45.33 14,497.77 19 64.0 17.8 2.50 0.18 296 26 26 154.00 87.78 40.77 10.00 5.70 96.15 0.00 0.00 100.00 0.00 0.00 100.00 260.0 148.20 0.00 0.00 0.00 100.00 611.01 1029.55 4.51 2.39 620.42 2/16/15 3:40 PM 122.67 14,620.43 20 74.0 23.3 2.50 0.18 308 27 26 160.00 91.20 34.69 40.00 22.80 83.67 0.00 0.00 100.00 0.00 0.00 100.00 245. 0 139.65 0.00 0.00 0.00 100.00 564.97 951.98 11.53 2.26 631.95 2/18/15 12:00 AM 32.33 14,652.77 24 59.0 15.0 2.50 0.18 245 21 22 250.00 142.50 19.35 60.00 34.20 80.65 0.00 0.00 100.00 0.00 0.00 100.00 310 .0 176.70 0.00 0.00 0.00 100.00 735.53 1239.38 3.24 2.40 635.19 2/23/15 4:05 PM 136.08 14,788.85 25 54.0 12.2 2.30 0.17 265 23 24 300.00 171.00 6.25 110.00 62.70 65.63 0.00 0.00 100.00 0.00 0.00 100.00 320 .0 182.40 0.00 0.00 0.00 100.00 766.65 1291.81 15.51 2.73 650.70 2/25/15 9:50 AM 41.75 14,830.60 28 62.0 16.7 2.50 0.18 369 32 32 290.00 165.30 17.14 120.00 68.40 65.71 0.00 0.00 100.00 0.00 0.00 100.00 35 0.0 199.50 0.00 0.00 0.00 100.00 825.67 1391.25 7.03 4.04 657.73 3/2/15 7:45 AM 117.92 14,948.52 24 50.0 10.0 2.30 0.17 351 31 31 260.00 148.20 18.75 118.00 67.26 63.13 30.00 17.10 90.63 0.00 0.00 100.00 3 20.0 182.40 0.00 0.00 0.00 100.00 772.67 1301.95 18.08 3.68 675.80 3/4/15 7:42 AM 47.95 14,996.47 26 52.0 11.1 2.00 0.15 332 29 30 130.00 74.10 13.33 70.00 39.90 53.33 0.00 0.00 100.00 0.00 0.00 100.00 150. 0 85.50 0.00 0.00 0.00 100.00 360.77 607.90 3.23 1.62 679.03 3/9/15 3:44 PM 128.03 15,124.50 24 78.0 25.6 2.50 0.18 235 20 20 170.00 96.90 27.66 120.00 68.40 48.94 0.00 0.00 100.00 0.00 0.00 100.00 235 .0 133.95 0.00 0.00 0.00 100.00 537.88 906.33 8.68 1.63 687.71 ERM Page 5 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 3/11/15 3:46 PM 48.03 15,172.53 27 71.0 21.7 2.50 0.18 334 29 29 200.00 114.00 16.67 115.00 65.55 52.08 8.00 4.56 96.67 0.00 0.00 100.00 240 .0 136.80 0.00 0.00 0.00 100.00 556.57 937.82 4.85 2.42 692.56 3/16/15 2:44 PM 118.97 15,291.50 6.6 74.0 23.3 5.50 0.40 598 52 52 143.00 81.51 4.67 122.00 69.54 18.67 50.00 28.50 66.67 0.00 0.00 100.00 150 .0 85.50 0.00 0.00 0.00 100.00 345.90 582.84 13.49 2.72 706.06 3/18/15 1:37 PM 46.88 15,338.38 6.6 73.0 22.8 5.30 0.39 540 47 47 310.00 176.70 3.13 275.00 156.75 14.06 128.00 72.96 60.00 9.50 5.42 97.03 3 20.0 182.40 0.00 9.50 5.42 97.03 739.31 1245.73 10.27 5.26 716.33 3/20/15 7:30 AM 0.00 15,338.38 7.5 74.0 23.3 2.10 0.15 535 47 46 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 275.0 156.75 0.00 0.00 0.00 100.00 634.15 1068.55 0.00 0.00 716.33 3/23/15 2:12 PM 78.70 15,417.08 6.4 71.0 21.7 2.20 0.16 487 42 42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 695.71 1172.28 14.47 4.41 730.80 3/25/15 4:55 PM 50.72 15,467.80 7.2 73.0 22.8 2.20 0.16 491 43 42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 554.48 934.30 7.46 3.53 738.26 3/30/15 5:18 PM 120.38 15,588.18 0.68 89.0 31.7 2.20 0.16 485 42 40 78.00 44.46 64.55 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 220.0 125.40 0.00 0.00 0.00 100.00 493.45 8 31.47 15.12 3.01 753.38 4/1/15 5:38 PM 48.33 15,636.52 7.2 69.0 20.6 2.20 0.16 480 42 41 75.00 42.75 67.39 10.00 5.70 95.65 0. 00 0.00 100.00 0.00 0.00 100.00 230.0 131.10 0.00 0.00 0.00 100.00 535.40 90 2.15 6.77 3.36 760.15 4/7/15 7:19 AM 133.68 15,770.20 7.8 67.4 19.7 1.90 0.14 484 42 42 300.00 171.00 4.76 45.00 25.65 85.71 0.00 0.00 100.00 0.00 0.00 100.00 315. 0 179.55 0.00 0.00 0.00 100.00 735.49 1239.30 25.96 4.66 786.11 4/9/15 12:15 PM 52.93 15,823.13 7 68.0 20.0 2.30 0.17 702 61 61 250.00 142.50 16.67 220.00 125.40 26.67 0.00 0.00 100.00 0.00 0.00 100.00 3 00.0 171.00 0.00 0.00 0.00 100.00 699.67 1178.94 14.19 6.44 800.30 4/13/15 8:35 AM 92.33 15,915.47 5.9 69.0 20.6 1.50 0.11 469 41 40 245.00 139.65 2.00 210.00 119.70 16.00 5.00 2.85 98.00 0.00 0.00 100.00 250 .0 142.50 0.00 0.00 0.00 100.00 581.95 980.59 13.68 3.56 813.98 4/14/15 2:35 PM 30.00 15,945.47 2 69.0 20.6 0.40 0.03 246 21 21 130.00 74.10 45.83 115.00 65.55 52.08 12.00 6.84 95.00 0.00 0.00 100.00 240 .0 136.80 0.00 0.00 0.00 100.00 558.67 941.37 2.23 1.78 816.20 4/20/15 1:24 PM 142.82 16,088.28 1.4 84.0 28.9 0.80 0.06 349 30 29 145.00 82.65 42.00 120.00 68.40 52.00 40.00 22.80 84.00 0.00 0.00 100.00 25 0.0 142.50 0.00 0.00 0.00 100.00 565.90 953.54 14.84 2.49 831.04 4/22/15 2:36 PM 49.20 16,137.48 1.7 75.0 23.9 0.40 0.03 186 16 16 150.00 85.50 28.57 125.00 71.25 40.48 35.00 19.95 83.33 0.00 0.00 100.00 21 0.0 119.70 0.00 0.00 0.00 100.00 483.35 814.45 2.36 1.15 833.40 4/27/15 6:44 AM 112.13 16,249.62 1.7 57.0 13.9 0.30 0.02 104 9 9 220.00 125.40 20.00 210.00 119.70 23.64 70.00 39.90 74.55 3.00 1.71 98.91 2 75.0 156.75 0.00 3.00 1.71 98.91 655.02 1103.70 4.22 0.90 837.62 4/27/15 11:45 AM 5.02 16,249.62 1.6 79.0 26.1 0.50 0.04 175 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 571.15 962.39 0.27 0.00 837.88 4/29/15 4:39 PM 52.90 16,302.52 1.1 92.0 33.3 0.45 0.03 235 20 19 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 255.0 145.35 0.00 0.00 0.00 100.00 568.84 958.50 3.66 1.66 841.54 5/4/15 6:45 PM 122.10 16,424.62 1.2 83.0 28.3 0.45 0.03 188 16 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 220.0 125.40 0.00 0.00 0.00 100.00 498.91 840.66 6.02 1.18 847.57 5/6/15 5:43 PM 46.97 16,471.58 1.1 75.0 23.9 0.48 0.04 220 19 19 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 575.42 969.59 3.17 1.62 850.74 5/12/15 3:12 PM 141.48 16,613.07 1.2 77.0 25.0 0.45 0.03 166 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 275.0 156.75 0.00 0.00 0.00 100.00 630.61 1062.57 7.88 1.34 858.62 5/14/15 4:15 PM 49.05 16,662.12 1.3 69.0 20.6 5.00 0.36 174 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 581.95 980.59 2.74 1.34 861.36 6/3/15 5:37 PM 0.00 16,662.12 1.2 82.0 27.8 0.50 0.04 186 16 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 567.99 957.06 0.00 0.00 861.36 6/8/15 5:50 PM 120.22 16,782.33 1.4 106.0 41.1 0.70 0.05 275 24 22 20.00 11.40 93.22 0.00 0.00 100.00 0.00 0.00 10 0.00 0.00 0.00 100.00 295.0 168.15 0.00 0.00 0.00 100.00 641.79 1081.41 10. 72 2.14 872.09 6/10/15 5:15 PM 47.42 16,829.75 1.8 89.0 31.7 0.60 0.04 222 19 18 32.00 18.24 89.33 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 672.89 11 33.82 3.69 1.87 875.77 6/15/15 2:05 PM 116.83 16,946.58 2 99.0 37.2 0.75 0.05 590 51 48 52.00 29.64 79.20 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 550.70 927. 94 19.43 3.99 895.20 6/17/15 3:00 PM 48.92 16,995.50 1.8 102.0 38.9 0.65 0.05 296 26 24 58.00 33.06 80.00 0.00 0.00 100.00 0.00 0.00 10 0.00 0.00 0.00 100.00 290.0 165.30 0.00 0.00 0.00 100.00 635.40 1070.66 4.6 8 2.30 899.88 6/22/15 11:35 AM 116.58 17,112.08 2 90.0 32.2 0.75 0.05 184 16 15 95.00 54.15 66.07 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 626.89 1056 .31 6.99 1.44 906.88 6/24/15 12:19 PM 48.73 17,160.82 1.8 96.0 35.6 0.60 0.04 187 16 15 130.00 74.10 48.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 553.68 932.95 2.59 1.28 909.47 6/29/15 3:20 PM 123.02 17,283.83 1.5 102.0 38.9 0.65 0.05 204 18 16 150.00 85.50 45.45 0.00 0.00 100.00 0.00 0.00 1 00.00 0.00 0.00 100.00 275.0 156.75 0.00 0.00 0.00 100.00 602.54 1015.28 7. 69 1.50 917.16 7/1/15 12:50 PM 45.50 17,329.33 1.5 99.0 37.2 0.62 0.05 297 26 24 230.00 131.10 20.69 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 290. 0 165.30 0.00 0.00 0.00 100.00 638.81 1076.41 4.41 2.33 921.58 7/6/15 4:40 PM 123.83 17,453.17 1.5 95.0 35.0 0.65 0.05 283 25 23 150.00 85.50 34.78 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 230.0 131.10 0.00 0.00 0.00 100.00 510.30 859.86 9.21 1.79 930.79 7/8/15 11:50 AM 43.17 17,496.33 1.5 85.0 29.4 0.64 0.05 174 15 14 200.00 114.00 20.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250. 0 142.50 0.00 0.00 0.00 100.00 564.86 951.79 2.23 1.24 933.02 7/13/15 5:23 PM 125.55 17,621.88 1.5 95.0 35.0 0.60 0.04 240 21 20 135.00 76.95 35.71 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 465.93 785.09 7.23 1.38 940.25 7/15/15 2:55 AM 33.53 17,655.42 1.5 89.0 31.7 0.60 0.04 240 21 20 140.00 79.80 36.36 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 220.0 125.40 0.00 0.00 0.00 100.00 493.45 831.47 2.07 1.48 942.32 11/10/15 1:58 AM 0.00 17,655.42 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 .00 0.00 942.32 11/14/15 12:03 PM 106.08 17,761.50 1.6 62.0 16.7 0.70 0.05 155 13 13 142.00 80.94 8.39 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 8 8.35 0.00 0.00 0.00 100.00 365.65 616.13 3.29 0.75 945.61 11/17/15 2:50 PM 74.78 17,836.28 1.9 59.0 15.0 0.70 0.05 188 16 16 120.00 68.40 40.00 5.00 2.85 97.50 0.00 0.00 100.00 0.00 0.00 100.00 200.0 1 14.00 0.00 0.00 0.00 100.00 474.54 799.60 3.68 1.18 949.29 11/20/15 4:15 PM 73.42 17,909.70 0.54 63.0 17.2 0.60 0.04 318 28 28 180.00 102.60 20.35 8.00 4.56 96.46 0.00 0.00 100.00 0.00 0.00 100.00 226.0 128.82 0.00 0.00 0.00 100.00 532.12 896.63 6.79 2.22 956.08 11/22/15 12:14 AM 31.98 17,941.68 0.6 59.0 15.0 0.60 0.04 310 27 27 180.00 102.60 18.18 10.00 5.70 95.45 0.00 0.00 100.00 0.00 0.00 100.00 220. 0 125.40 0.00 0.00 0.00 100.00 521.99 879.56 2.85 2.14 958.93 12/1/15 11:25 AM 0.00 17,941.68 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 .00 0.00 958.93 12/1/15 3:09 PM 3.73 17,945.42 0.65 56.0 13.3 0.70 0.05 315 27 28 180.00 102.60 -350.00 10.00 5.70 75.00 0.00 0.00 100.00 0.00 0.00 100.00 40 .0 22.80 0.00 0.00 0.00 100.00 95.46 160.85 0.06 0.40 958.99 12/4/15 3:05 PM 71.93 18,017.35 1.6 59.0 15.0 0.70 0.05 192 17 17 250.00 142.50 10.71 24.00 13.68 91.43 3.00 1.71 98.93 0.00 0.00 100.00 280. 0 159.60 0.00 0.00 0.00 100.00 664.35 1119.44 5.06 1.69 964.05 12/8/15 3:04 PM 95.98 18,113.33 0.75 60.0 15.6 0.75 0.05 205 18 18 170.00 96.90 19.05 25.00 14.25 88.10 4.00 2.28 98.10 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 497.31 837.96 5.38 1.35 969.43 12/11/15 12:57 PM 69.88 18,183.22 1.9 53.0 11.7 1.25 0.09 210 18 19 160.00 91.20 11.11 55.00 31.35 69.44 2.00 1.14 98.89 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 432.08 728.06 3.54 1.22 972.97 12/15/15 3:36 PM 98.65 18,281.87 2 51.0 10.6 0.65 0.05 170 15 15 250.00 142.50 13.79 60.00 34.20 79.31 0.00 0.00 100.00 0.00 0.00 100.00 290 .0 165.30 0.00 0.00 0.00 100.00 698.86 1177.58 6.56 1.60 979.53 12/18/15 1:30 PM 0.00 18,281.87 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 .00 0.00 979.53 1/21/16 11:30 AM 0.00 18,281.87 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 .00 0.00 979.53 1/21/16 3:12 PM 3.70 18,285.57 3.2 59.0 15.0 1.20 0.09 311 27 27 170.00 96.90 -246.94 85.00 48.45 -73.47 0.00 0.00 100.00 0.00 0.00 100.00 4 9.0 27.93 0.00 0.00 0.00 100.00 116.26 195.90 0.07 0.48 979.61 1/23/16 9:04 AM 41.87 18,327.43 4.4 58.6 14.8 1.40 0.10 254 22 22 20.00 11.40 91.30 105.00 59.85 54.35 0.00 0.00 100.00 0.00 0.00 100.00 230.0 131.10 0.00 0.00 0.00 100.00 546.14 920.25 3.21 1.84 982.82 2/5/16 11:12 AM 314.13 18,641.57 16 62.2 16.8 1.20 0.09 185 16 16 172.00 98.04 -10.97 125.00 71.25 19.35 5.00 2.85 96.77 0.00 0.00 100.00 155 .0 88.35 0.00 0.00 0.00 100.00 365.51 615.89 11.66 0.89 994.48 ERM Page 6 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 2/8/16 4:14 PM 77.03 18,718.60 16.5 65.8 18.8 1.00 0.07 284 25 25 142.00 80.94 23.24 130.00 74.10 29.73 6.00 3.42 96.76 0.00 0.00 100.00 185. 0 105.45 0.00 0.00 0.00 100.00 433.27 730.06 5.16 1.61 999.65 2/12/16 2:10 PM 93.93 18,812.53 16 70.1 21.2 0.75 0.05 298 26 25 155.00 88.35 20.51 131.00 74.67 32.82 16.00 9.12 91.79 0.00 0.00 100.00 195 .0 111.15 0.00 0.00 0.00 100.00 452.98 763.27 6.84 1.75 1006.49 2/16/16 3:29 PM 97.32 18,909.85 16 70.5 21.4 0.80 0.06 380 33 32 150.00 85.50 40.00 140.00 79.80 44.00 15.00 8.55 94.00 0.00 0.00 100.00 250 .0 142.50 0.00 0.00 0.00 100.00 580.31 977.82 11.58 2.85 1018.06 2/19/16 2:02 PM 70.55 18,980.40 14 64.0 17.8 0.75 0.05 302 26 26 145.00 82.65 0.00 130.00 74.10 10.34 20.00 11.40 86.21 0.00 0.00 100.00 145 .0 82.65 0.00 0.00 0.00 100.00 340.76 574.17 3.96 1.35 1022.03 2/22/16 4:40 PM 74.63 19,055.03 13 64.5 18.1 0.75 0.05 366 32 32 120.00 68.40 46.67 105.00 59.85 53.33 15.00 8.55 93.33 0.00 0.00 100.00 225 .0 128.25 0.00 0.00 0.00 100.00 528.25 890.11 7.87 2.53 1029.90 2/25/16 11:00 AM 66.33 19,121.37 13 69.0 20.6 0.80 0.06 354 31 30 165.00 94.05 14.06 136.00 77.52 29.17 35.00 19.95 81.77 0.00 0.00 100.00 19 2.0 109.44 0.00 0.00 0.00 100.00 446.94 753.10 5.68 2.05 1035.57 3/1/16 1:34 PM 122.57 19,243.93 13 77.0 25.0 0.75 0.05 336 29 28 165.00 94.05 23.26 128.00 72.96 40.47 50.00 28.50 76.74 5.00 2.85 97.67 215 .0 122.55 0.00 5.00 2.85 97.67 493.02 830.74 10.82 2.12 1046.39 3/2/16 11:42 AM 22.13 19,266.07 13 73.0 22.8 0.75 0.05 252 22 21 168.00 95.76 32.80 160.00 91.20 36.00 95.00 54.15 62.00 8.00 4.56 96.80 250 .0 142.50 0.00 8.00 4.56 96.80 577.58 973.23 1.73 1.87 1048.12 3/9/16 12:50 PM 0.00 19,266.07 15 65.0 18.3 0.80 0.06 358 31 31 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 38.0 21.66 0.00 0. 00 0.00 100.00 89.13 150.19 0.00 0.00 1048.12 3/12/16 2:09 PM 73.32 19,339.38 12 56.0 13.3 0.75 0.05 264 23 23 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 158.0 90.06 0.00 0 .00 0.00 100.00 377.07 635.36 4.05 1.32 1052.16 3/15/16 4:49 PM 74.67 19,414.05 12 64.0 17.8 0.80 0.06 289 25 25 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 505.26 851.36 5.95 1.91 1058.12 3/18/16 4:19 PM 71.50 19,485.55 12 78.0 25.6 0.90 0.07 326 28 27 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0 .00 0.00 100.00 377.66 636.36 4.68 1.57 1062.80 3/22/16 12:35 PM 92.27 19,577.82 12.5 61.0 16.1 0.75 0.05 268 23 23 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 20.0 11.40 0.00 0. 00 0.00 100.00 47.27 79.65 0.64 0.17 1063.44 3/25/16 9:45 AM 69.17 19,646.98 12 59.0 15.0 0.75 0.05 336 29 29 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0 .00 0.00 100.00 415.22 699.65 5.32 1.85 1068.76 3/29/16 9:40 AM 95.92 19,742.90 12 53.0 11.7 0.60 0.04 144 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 35.0 19.95 0.00 0. 00 0.00 100.00 84.02 141.57 0.65 0.16 1069.41 3/31/16 12:56 PM 51.27 19,794.17 12 72.0 22.2 0.70 0.05 141 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 49.0 27.93 0.00 0. 00 0.00 100.00 113.42 191.11 0.44 0.21 1069.85 4/4/16 3:38 PM 98.70 19,892.87 12 82.0 27.8 0.75 0.05 165 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 65.0 37.05 0.00 0. 00 0.00 100.00 147.68 248.84 1.27 0.31 1071.12 4/8/16 2:30 PM 94.87 19,987.73 12 70.0 21.1 0.80 0.06 130 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 100.0 57.00 0.00 0 .00 0.00 100.00 232.34 391.50 1.55 0.39 1072.67 4/11/16 5:25 PM 74.92 20,062.65 13 74.0 23.3 0.80 0.06 233 20 20 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 68.0 38.76 0.00 0. 00 0.00 100.00 156.81 264.22 1.47 0.47 1074.13 4/15/16 11:25 AM 90.00 20,152.65 10 65.0 18.3 0.80 0.06 140 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 75.0 42.75 0.00 0. 00 0.00 100.00 175.92 296.42 1.21 0.32 1075.34 4/18/16 12:00 PM 72.58 20,225.23 12 88.0 31.1 0.80 0.06 150 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 68.0 38.76 0.00 0. 00 0.00 100.00 152.80 257.47 0.87 0.29 1076.21 4/22/16 12:38 PM 96.63 20,321.87 14 76.0 24.4 0.75 0.05 141 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0 .00 0.00 100.00 264.20 445.18 1.92 0.48 1078.13 4/25/16 12:18 PM 71.67 20,393.53 11 64.0 17.8 0.80 0.06 127 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 85.0 48.45 0.00 0. 00 0.00 100.00 199.75 336.58 0.99 0.33 1079.12 4/28/16 3:10 PM 74.87 20,468.40 12 71.0 21.7 0.85 0.06 134 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 78.0 44.46 0.00 0. 00 0.00 100.00 180.88 304.79 0.98 0.31 1080.10 5/2/16 3:34 PM 96.40 20,564.80 12 90.0 32.2 0.90 0.07 139 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 100.0 57.00 0.00 0 .00 0.00 100.00 223.89 377.25 1.56 0.39 1081.66 5/5/16 11:23 AM 67.82 20,632.62 12 65.0 18.3 0.80 0.06 133 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 110.0 62.70 0.00 0 .00 0.00 100.00 258.01 434.75 1.26 0.45 1082.93 5/9/16 11:00 AM 95.62 20,728.23 12 74.0 23.3 0.75 0.05 126 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0 .00 0.00 100.00 265.19 446.85 1.71 0.43 1084.64 5/12/16 10:50 AM 71.83 20,800.07 12 81.0 27.2 0.80 0.06 132 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 118.0 67.26 0.00 0 .00 0.00 100.00 268.59 452.57 1.35 0.45 1085.99 5/16/16 4:48 PM 101.97 20,902.03 12 86.0 30.0 0.80 0.06 139 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 405.95 684.03 3.01 0.71 1089.00 5/20/16 1:00 PM 92.20 20,994.23 10 71.0 21.7 0.80 0.06 146 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0 .00 0.00 100.00 405.83 683.83 2.95 0.77 1091.95 5/23/16 11:50 AM 70.83 21,065.07 10 73.0 22.8 0.80 0.06 131 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 450.51 759.12 2.24 0.76 1094.19 5/27/16 12:13 PM 96.38 21,161.45 10 85.0 29.4 0.80 0.06 132 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 463.18 780.47 3.09 0.77 1097.28 5/31/16 6:25 PM 102.20 21,263.65 9.5 98.0 36.7 0.80 0.06 143 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 617.89 1041.15 4.62 1.08 1101.90 6/3/16 10:10 AM 63.75 21,327.40 7.5 87.0 30.6 0.90 0.07 167 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 484.00 815.54 2.70 1.02 1104.60 6/6/16 2:55 PM 76.75 21,404.15 4 100.0 37.8 1.00 0.07 240 21 19 10.00 5.70 95.35 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 472.76 796.60 4.44 1 .39 1109.05 6/10/16 9:40 AM 90.75 21,494.90 4.5 73.0 22.8 0.95 0.07 200 17 17 24.00 13.68 88.57 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 485.17 81 7.51 4.73 1.25 1113.78 6/13/16 3:38 PM 77.97 21,572.87 3.5 73.0 22.8 1.00 0.07 230 20 20 85.00 48.45 64.58 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 554.48 93 4.30 5.34 1.64 1119.12 6/17/16 10:16 AM 90.63 21,663.50 4.2 73.0 22.8 0.85 0.06 199 17 17 120.00 68.40 42.86 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 485.17 817.51 4.69 1.24 1123.81 6/20/16 12:10 PM 73.90 21,737.40 4 92.0 33.3 1.00 0.07 230 20 19 120.00 68.40 57.14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 624.61 1052.48 5.51 1.79 1129.32 6/24/16 10:10 AM 94.00 21,831.40 4 78.0 25.6 0.90 0.07 217 19 18 140.00 79.80 36.36 3.00 1.71 98.64 0.00 0.00 100.00 0.00 0.00 100.00 220.0 1 25.40 0.00 0.00 0.00 100.00 503.55 848.48 5.46 1.39 1134.78 6/27/16 10:53 AM 72.72 21,904.12 4 92.0 33.3 0.90 0.07 241 21 20 114.00 64.98 45.71 11.00 6.27 94.76 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 468.46 789.36 4.26 1.41 1139.04 7/1/16 12:10 PM 97.28 22,001.40 4.7 99.0 37.2 0.90 0.07 191 17 15 125.00 71.25 41.86 22.00 12.54 89.77 18.00 10.26 91.63 0.00 0.00 100.00 215 .0 122.55 0.00 0.00 0.00 100.00 473.60 798.03 4.50 1.11 1143.54 7/5/16 11:37 AM 95.45 22,096.85 2.5 89.0 31.7 0.05 0.00 108 9 9 105.00 59.85 48.78 40.00 22.80 80.49 34.00 19.38 83.41 0.00 0.00 100.00 205 .0 116.85 0.00 0.00 0.00 100.00 459.81 774.78 2.46 0.62 1146.00 7/8/16 5:21 PM 77.73 22,174.58 2.5 95.0 35.0 0.60 0.04 130 11 11 210.00 119.70 25.00 68.00 38.76 75.71 62.00 35.34 77.86 0.00 0.00 100.00 28 0.0 159.60 0.00 0.00 0.00 100.00 621.23 1046.78 3.23 1.00 1149.23 7/13/16 10:40 AM 113.32 22,287.90 2.7 89.0 31.7 0.40 0.03 131 11 11 140.00 79.80 44.00 65.00 37.05 74.00 54.00 30.78 78.40 0.00 0.00 100.00 250 .0 142.50 0.00 0.00 0.00 100.00 560.74 944.85 4.33 0.92 1153.56 7/15/16 8:30 AM 45.83 22,333.73 2.5 82.0 27.8 0.36 0.03 121 11 10 140.00 79.80 36.36 68.00 38.76 69.09 61.00 34.77 72.27 3.00 1.71 98.64 220. 0 125.40 0.00 1.71 0.97 99.22 499.83 842.21 1.46 0.76 1155.02 7/15/16 4:00 PM 7.50 22,341.23 0.2 108.0 42.2 0.50 0.04 112 10 9 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 275.0 156.75 0.00 0.00 0.00 100.00 596.17 1004.55 0.25 0 .81 1155.27 7/18/16 10:48 AM 66.80 22,408.03 3 83.0 28.3 0.45 0.03 129 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 190.0 108.30 0.00 0.00 0.00 100.00 430.87 726.02 1.95 0.70 1157.23 7/22/16 2:30 PM 99.70 22,507.73 2.6 98.0 36.7 0.60 0.04 137 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 463.42 780.86 3.25 0.78 1160.48 7/25/16 7:30 AM 65.00 22,572.73 2.8 75.0 23.9 0.50 0.04 116 10 10 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 108.0 61.56 0.00 0 .00 0.00 100.00 248.58 418.86 1.00 0.37 1161.48 ERM Page 7 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 7/30/16 9:46 AM 122.27 22,695.00 3 89.0 31.7 0.40 0.03 125 11 10 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 560.74 944.85 4.47 0.88 1165.94 8/1/16 5:25 PM 55.65 22,750.65 3 100.0 37.8 0.60 0.04 158 14 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 549.72 926.28 2.46 1 .06 1168.40 8/5/16 4:25 PM 95.00 22,845.65 2.6 94.0 34.4 0.50 0.04 147 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 377.86 636.69 2.71 0.69 1171.12 8/8/16 3:06 PM 70.68 22,916.33 2.5 210.0 98.9 0.50 0.04 168 15 11 10.00 5.70 95.24 2.00 1.14 99.05 0.00 0.00 100. 00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 385.91 650.27 1.95 0. 66 1173.07 8/12/16 12:00 AM 80.90 22,997.23 2.7 101.0 38.3 0.50 0.04 183 16 15 60.00 34.20 72.73 1.00 0.57 99.55 0.00 0.00 100 .00 0.00 0.00 100.00 220.0 125.40 0.00 0.00 0.00 100.00 482.89 813.67 3.64 1 .08 1176.71 8/15/16 4:43 PM 88.72 23,085.95 2.7 103.0 39.4 0.60 0.04 154 13 12 95.00 54.15 54.76 2.00 1.14 99.05 0.00 0.00 100 .00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 459.30 773.93 3.18 0 .86 1179.89 8/19/16 7:05 AM 86.37 23,172.32 3.2 69.0 20.6 0.50 0.04 126 11 11 125.00 71.25 50.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 581.95 980.59 3.43 0.95 1183.32 8/22/16 6:30 AM 71.42 23,243.73 3.2 69.0 20.6 0.50 0.04 141 12 12 170.00 96.90 39.29 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 651.79 1098.26 3.54 1.19 1186.86 8/26/16 7:15 AM 96.75 23,340.48 3.2 64.0 17.8 0.40 0.03 167 15 14 180.00 102.60 35.71 8.00 4.56 97.14 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 658.01 1108.75 5.79 1.44 1192.66 8/29/16 6:30 AM 71.25 23,411.73 3.1 65.0 18.3 0.40 0.03 153 13 13 190.00 108.30 34.48 2.00 1.14 99.31 0.00 0.00 100.00 0.00 0.00 100.00 290.0 165.30 0.00 0.00 0.00 100.00 680.21 1146.16 4.03 1.36 1196.69 9/1/16 6:30 AM 72.00 23,483.73 3.4 64.0 17.8 0.40 0.03 144 13 12 280.00 159.60 3.45 2.00 1.14 99.31 0.00 0.00 100.00 0.00 0.00 100.00 290.0 1 65.30 0.00 0.00 0.00 100.00 681.51 1148.35 3.84 1.28 1200.53 9/6/16 7:15 AM 120.75 23,604.48 3.5 63.0 17.2 0.40 0.03 149 13 13 270.00 153.90 3.57 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 659.27 1110.87 6.46 1.28 1206.99 9/9/16 7:30 AM 72.25 23,676.73 3.4 65.0 18.3 0.50 0.04 168 15 14 250.00 142.50 13.79 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 290. 0 165.30 0.00 0.00 0.00 100.00 680.21 1146.16 4.49 1.49 1211.48 9/13/16 8:40 AM 97.17 23,773.90 4 60.0 15.6 0.50 0.04 146 13 13 205.00 116.85 25.45 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 275. 0 156.75 0.00 0.00 0.00 100.00 651.23 1097.33 5.06 1.25 1216.54 9/16/16 3:42 PM 79.03 23,852.93 3 91.0 32.8 0.70 0.05 175 15 14 220.00 125.40 18.52 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 270. 0 153.90 0.00 0.00 0.00 100.00 603.40 1016.73 4.33 1.32 1220.87 9/19/16 5:47 PM 74.08 23,927.02 2.7 101.0 38.3 0.40 0.03 190 16 15 210.00 119.70 16.00 10.00 5.70 96.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 548.74 924.63 3. 92 1.27 1224.80 9/23/16 11:15 AM 89.47 24,016.48 4.2 74.0 23.3 0.70 0.05 151 13 13 190.00 108.30 20.83 8.00 4.56 96.67 0.00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 553.44 932.55 4.01 1.08 1228.81 9/30/16 5:06 PM 173.85 24,190.33 2.8 89.0 31.7 0.50 0.04 185 16 15 215.00 122.55 14.00 78.00 44.46 68.80 70.00 39.90 72.00 0.00 0.00 100.00 25 0.0 142.50 0.00 0.00 0.00 100.00 560.74 944.85 9.39 1.30 1238.20 10/19/16 3:22 PM 0.00 24,190.33 2.9 82.4 28.0 1.20 0.09 212 18 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 12.0 6.84 0.00 0.0 0 0.00 100.00 27.24 45.90 0.00 0.00 1238.20 10/21/16 4:03 PM 48.68 24,239.02 2.0 81.6 27.6 0.80 0.06 177 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 477.46 804.52 2.17 1.07 1240.37 10/25/16 4:13 PM 96.17 24,335.18 2.3 83.8 28.8 1.40 0.10 197 17 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 280.0 159.60 0.00 0.00 0.00 100.00 634.04 1068.36 6.33 1.58 1246.70 10/28/16 4:33 PM 72.33 24,407.52 0.3 71.5 21.9 1.40 0.10 173 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 1246.70 10/31/16 8:37 AM 64.07 24,471.58 0.3 54.0 12.2 0.60 0.04 160 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 1246.70 11/2/16 8:30 AM 47.88 24,519.47 2.3 69.0 20.6 0.40 0.03 169 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 28.0 15.96 0.00 0. 00 0.00 100.00 65.18 109.83 0.28 0.14 1246.99 11/4/16 8:15 AM 47.75 24,567.22 2.0 52.0 11.1 0.40 0.03 123 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 721.55 1215.81 2.36 1.19 1249.35 11/7/16 3:00 PM 78.75 24,645.97 1.8 74.0 23.3 0.50 0.04 126 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 472.73 796.55 2.51 0.76 1251.86 11/11/16 1:25 PM 94.42 24,740.38 1.8 82.0 27.8 0.50 0.04 199 17 17 2.00 1.14 99.23 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 260.0 148.20 0.00 0.00 0.00 100.00 590.71 995. 34 5.84 1.48 1257.70 11/15/16 1:11 PM 95.77 24,836.15 2.0 73.0 22.8 0.60 0.04 138 12 12 4.00 2.28 97.50 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 369.65 622.8 7 2.62 0.66 1260.32 11/19/16 12:28 PM 95.28 24,931.43 3.2 67.0 19.4 0.70 0.05 192 17 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 490.70 826.83 4.86 1.23 1265.18 11/22/16 12:00 PM 71.53 25,002.97 3.2 53.0 11.7 0.50 0.04 120 10 11 2.00 1.14 99.20 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 600.11 1011 .20 2.87 0.96 1268.05 11/25/16 2:40 PM 74.67 25,077.63 2.4 62.0 16.7 0.80 0.06 187 16 16 3.00 1.71 98.42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 190.0 108.30 0.00 0.00 0.00 100.00 448.22 755. 25 3.44 1.11 1271.49 11/29/16 3:20 PM 96.67 25,174.30 3.0 57.0 13.9 0.60 0.04 131 11 11 10.00 5.70 95.35 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 512.10 862 .90 3.59 0.89 1275.08 12/2/16 1:45 PM 70.42 25,244.72 3.0 53.0 11.7 0.60 0.04 139 12 12 25.00 14.25 88.37 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 516.10 86 9.63 2.81 0.96 1277.89 12/6/16 1:35 PM 95.83 25,340.55 4.5 49.0 9.4 0.60 0.04 138 12 12 70.00 39.90 77.42 3.00 1.71 99.03 0.00 0.00 100.00 0.00 0.00 100.00 310.0 176.70 0.00 0.00 0.00 100.00 749.99 1263 .74 5.55 1.39 1283.44 12/9/16 10:18 AM 68.72 25,409.27 6 58.0 14.4 0.50 0.04 137 12 12 80.00 45.60 52.38 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 168.0 95.76 0.00 0.00 0.00 100.00 399.38 672.9 6 2.08 0.73 1285.52 12/12/16 1:42 PM 75.40 25,484.67 6 57.0 13.9 0.50 0.04 127 11 11 108.00 61.56 58.46 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 260.0 148.20 0.00 0.00 0.00 100.00 619.29 1043.50 3.28 1.04 1288.80 12/18/16 8:40 AM 138.97 25,623.63 8.5 32.0 0.0 0.50 0.04 106 9 10 140.00 79.80 24.32 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 463.05 780.25 3.98 0.69 1292.77 12/21/16 9:40 AM 73.00 25,696.63 8.5 41.0 5.0 0.50 0.04 115 10 10 145.00 82.65 42.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 614.50 1035.43 2.94 0.97 1295.72 12/23/16 12:00 AM 38.33 25,734.97 9 43.0 6.1 0.60 0.04 110 10 10 110.00 62.70 26.67 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 367.23 618.79 0.88 0.55 1296.60 12/27/16 10:14 AM 106.23 25,841.20 9.5 41.0 5.0 0.40 0.03 105 9 9 125.00 71.25 -25.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 100. 0 57.00 0.00 0.00 0.00 100.00 245.80 414.17 1.56 0.35 1298.16 12/30/16 11:40 AM 73.43 25,914.63 9 47.0 8.3 0.50 0.04 128 11 11 120.00 68.40 14.29 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 340.04 572.98 1.80 0.59 1299.96 1/6/17 12:31 PM 168.85 26,083.48 10 44.0 6.7 5.00 0.36 108 9 10 140.00 79.80 -154.55 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 55. 0 31.35 0.00 0.00 0.00 100.00 134.38 226.44 1.42 0.20 1301.38 1/9/17 2:10 PM 73.65 26,157.13 12 55.0 12.8 0.50 0.04 118 10 10 138.00 78.66 -360.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 30. 0 17.10 0.00 0.00 0.00 100.00 71.73 120.87 0.35 0.11 1301.72 1/13/17 1:30 PM 95.33 26,252.47 12 43.0 6.1 0.50 0.04 123 11 11 120.00 68.40 0.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 120.0 6 8.40 0.00 0.00 0.00 100.00 293.79 495.03 1.95 0.49 1303.67 1/16/17 10:20 AM 68.83 26,321.30 12 44.0 6.7 0.40 0.03 111 10 10 120.00 68.40 0.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 120.0 6 8.40 0.00 0.00 0.00 100.00 293.20 494.05 1.26 0.44 1304.93 1/20/17 11:31 AM 97.18 26,418.48 16 48.0 8.9 0.80 0.06 155 14 14 118.00 67.26 -145.83 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 48. 0 27.36 0.00 0.00 0.00 100.00 116.36 196.06 0.99 0.24 1305.92 1/23/17 11:11 AM 71.67 26,490.15 20 44.0 6.7 1.50 0.11 422 37 38 120.00 68.40 14.29 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 342.07 576.39 5.89 1.97 1311.81 1/27/17 11:28 AM 96.28 26,586.43 20 52.0 11.1 1.30 0.09 268 23 24 105.00 59.85 38.95 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 172.0 98.04 0.00 0.00 0.00 100.00 413.69 697.06 5.98 1.49 1317.80 1/30/17 3:30 PM 76.03 26,662.47 19 63.0 17.2 1.00 0.07 230 20 20 100.00 57.00 60.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 588.63 991.85 5.63 1.78 1323.43 2/3/17 11:30 AM 92.00 26,754.47 24 58.0 14.4 1.00 0.07 225 20 20 110.00 62.70 37.14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 416.02 701.00 4.77 1.24 1328.19 ERM Page 8 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 2/6/17 12:15 PM 72.75 26,827.22 28 56.0 13.3 1.00 0.07 259 23 23 115.00 65.55 36.11 4.00 2.28 97.78 0.00 0.00 100.00 0.00 0.00 100.00 180.0 1 02.60 0.00 0.00 0.00 100.00 429.57 723.83 4.49 1.48 1332.68 2/10/17 1:29 PM 97.23 26,924.45 7.5 59.0 15.0 1.50 0.11 326 28 29 120.00 68.40 41.46 18.00 10.26 91.22 0.00 0.00 100.00 0.00 0.00 100.00 205. 0 116.85 0.00 0.00 0.00 100.00 486.40 819.59 8.52 2.10 1341.21 2/13/17 11:15 AM 69.77 26,994.22 8.4 65.0 18.3 1.60 0.12 329 29 29 104.00 59.28 28.28 15.00 8.55 89.66 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0.00 0.00 100.00 340.11 573.08 4.27 1.47 1345.48 2/18/17 10:44 AM 119.48 27,113.70 15 65.0 18.3 1.30 0.09 234 20 20 56.00 31.92 6.67 24.00 13.68 60.00 0.0 0 0.00 100.00 0.00 0.00 100.00 60.0 34.20 0.00 0.00 0.00 100.00 140.73 237.1 4 2.15 0.43 1347.63 2/20/17 7:47 AM 45.05 27,158.75 13 53.0 11.7 1.00 0.07 284 25 25 144.00 82.08 20.00 72.00 41.04 60.00 0.00 0.00 100.00 0.00 0.00 100.00 180. 0 102.60 0.00 0.00 0.00 100.00 432.08 728.06 3.09 1.64 1350.71 2/24/17 1:09 PM 101.37 27,260.12 8.5 54.0 12.2 1.00 0.07 210 18 19 200.00 114.00 28.57 105.00 59.85 62.50 18.00 10.26 93.57 0.00 0.00 100.00 2 80.0 159.60 0.00 0.00 0.00 100.00 670.82 1130.34 7.96 1.88 1358.67 3/3/17 3:30 PM 0.00 27,260.12 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 .00 0.00 1358.67 3/3/17 3:35 PM 0.08 27,260.20 8 69.0 20.6 1.20 0.09 244 21 21 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 349.17 588.36 0.00 1.11 1358.68 3/7/17 8:20 AM 88.75 27,348.95 8 41.0 5.0 1.00 0.07 210 18 19 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 300.0 171.00 0.00 0.00 0.00 100.00 737.40 1242.52 7.86 2.12 1366.53 3/10/17 10:40 AM 74.33 27,423.28 10 68.0 20.0 1.00 0.07 155 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 454.78 766.31 2.84 0.92 1369.37 3/13/17 2:28 PM 75.80 27,499.08 10.5 80.0 26.7 1.00 0.07 147 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 490.28 826.12 2.89 0.91 1372.26 3/17/17 1:51 PM 95.38 27,594.47 11 77.0 25.0 1.00 0.07 146 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 573.28 965.98 4.26 1.07 1376.52 3/20/17 11:21 AM 69.50 27,663.97 11 74.0 23.3 1.00 0.07 143 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 245.0 139.65 0.00 0.00 0.00 100.00 564.97 951.98 3.01 1.04 1379.53 3/24/17 2:10 PM 98.82 27,762.78 13 57.0 13.9 0.60 0.04 124 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 500.19 842.83 3.39 0.82 1382.92 3/27/17 11:50 AM 69.67 27,832.45 12 61.0 16.1 1.00 0.07 132 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 508.17 856.27 2.56 0.88 1385.48 3/31/17 10:45 AM 94.92 27,927.37 12 61.0 16.1 0.45 0.03 143 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 496.35 836.35 3.69 0.93 1389.17 4/3/17 10:30 AM 71.75 27,999.12 12 65.0 18.3 0.50 0.04 132 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 422.20 711.41 2.18 0.73 1391.35 4/8/17 12:00 AM 109.50 28,108.62 14 57.0 13.9 0.70 0.05 131 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 369.19 622.09 2.93 0.64 1394.27 4/10/17 1:45 PM 61.75 28,170.37 13 68.0 20.0 0.60 0.04 148 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 583.06 982.45 2.89 1.12 1397.16 4/14/17 8:40 AM 90.92 28,261.28 14 47.0 8.3 0.50 0.04 138 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 522.21 879.93 3.68 0.97 1400.84 4/17/17 2:50 PM 78.17 28,339.45 16 74.0 23.3 0.60 0.04 142 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 392.02 660.56 2.33 0.72 1403.17 4/21/17 9:22 AM 90.53 28,429.98 16 60.0 15.6 0.50 0.04 167 15 15 10.00 5.70 95.12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 485.47 818. 01 4.03 1.07 1407.20 4/24/17 12:00 AM 62.63 28,492.62 16 61.0 16.1 0.50 0.04 127 11 11 15.00 8.55 90.74 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 162.0 92.34 0.00 0.00 0.00 100.00 382.90 645.1 9 1.67 0.64 1408.87 4/28/17 5:25 PM 113.42 28,606.03 14 74.0 23.3 0.50 0.04 138 12 12 8.00 4.56 96.28 0.00 0.00 100.00 0.00 0 .00 100.00 0.00 0.00 100.00 215.0 122.55 0.00 0.00 0.00 100.00 495.79 835.4 1 4.15 0.88 1413.03 5/1/17 2:00 PM 68.58 28,674.62 14 87.0 30.6 0.50 0.04 118 10 10 8.00 4.56 96.80 0.00 0.00 100.00 0.00 0 .00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 562.79 948.3 1 2.38 0.83 1415.40 5/5/17 2:18 PM 96.30 28,770.92 14 86.0 30.0 0.50 0.04 124 11 10 48.00 27.36 68.00 10.00 5.70 93.33 0.0 0 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 338.29 570. 03 2.11 0.52 1417.51 5/8/17 11:40 AM 69.37 28,840.28 14 75.0 23.9 0.50 0.04 155 13 13 20.00 11.40 87.88 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 379.78 639. 93 2.18 0.75 1419.69 5/12/17 12:44 PM 97.07 28,937.35 14 61.0 16.1 0.50 0.04 138 12 12 20.00 11.40 91.30 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 230.0 131.10 0.00 0.00 0.00 100.00 543.62 916 .01 3.99 0.99 1423.68 5/15/17 3:42 PM 74.97 29,012.32 13 75.0 23.9 0.50 0.04 133 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 245.0 139.65 0.00 0.00 0.00 100.00 563.91 950.20 3.00 0.96 1426.69 5/19/17 4:50 PM 97.13 29,109.45 12 92.0 33.3 0.50 0.04 126 11 10 82.00 46.74 58.16 7.00 3.99 96.43 0.00 0.00 100.00 0.00 0.00 100.00 196.0 111.72 0.00 0.00 0.00 100.00 437.23 736. 73 2.77 0.68 1429.46 5/22/17 1:30 PM 68.67 29,178.12 13 100.0 37.8 0.50 0.04 124 11 10 124.00 70.68 66.67 8.00 4.56 97.85 0.00 0.00 10 0.00 0.00 0.00 100.00 372.0 212.04 0.00 0.00 0.00 100.00 817.98 1378.30 3.5 5 1.24 1433.01 5/26/17 9:35 AM 92.08 29,270.20 12 63.0 17.2 0.50 0.04 145 13 13 176.00 100.32 49.71 7.00 3.99 98.00 0.00 0.00 100.00 0.00 0.00 100.00 350.0 199.50 0.00 0.00 0.00 100.00 824.09 1388.59 6.01 1.57 1439.02 5/29/17 11:30 AM 73.92 29,344.12 10 87.0 30.6 0.50 0.04 155 13 13 58.00 33.06 61.33 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 337.67 568. 98 2.02 0.66 1441.04 6/2/17 2:20 PM 98.83 29,442.95 7 94.0 34.4 0.70 0.05 145 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 200.0 114.00 0.00 0.00 0.00 100.00 444.54 749.05 3.29 0.80 1444.33 6/5/17 8:40 AM 66.33 29,509.28 5.5 73.0 22.8 0.50 0.04 180 16 15 70.00 39.90 12.50 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 80.0 45.60 0.00 0.00 0.00 100.00 184.83 311. 43 1.18 0.43 1445.51 6/9/17 12:55 PM 100.25 29,609.53 6 82.0 27.8 0.80 0.06 192 17 16 70.00 39.90 33.33 5.00 2.85 95.24 0.00 0 .00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0.00 0.00 100.00 238.55 401.96 2.42 0.58 1447.94 6/12/17 11:32 AM 70.62 29,680.15 5.8 73.0 22.8 0.80 0.06 188 16 16 105.00 59.85 25.00 15.00 8.55 89.29 0.00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 323.45 545.01 2.31 0.78 1450.24 6/16/17 11:40 AM 96.13 29,776.28 5 94.0 34.4 0.80 0.06 214 19 18 210.00 119.70 25.00 52.00 29.64 81.43 0.00 0.00 100.00 0.00 0.00 100.00 280 .0 159.60 0.00 0.00 0.00 100.00 622.36 1048.67 6.61 1.65 1456.86 6/19/17 8:15 AM 68.58 29,844.87 5.5 87.0 30.6 0.80 0.06 173 15 14 98.00 55.86 43.02 35.00 19.95 79.65 0 .00 0.00 100.00 0.00 0.00 100.00 172.0 98.04 0.00 0.00 0.00 100.00 387.20 65 2.43 2.40 0.84 1459.26 6/23/17 2:20 PM 102.08 29,946.95 5.8 106.0 41.1 0.80 0.06 188 16 15 130.00 74.10 29.73 70.00 39.90 62.16 0.00 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 402.48 678.18 3. 90 0.92 1463.16 6/26/17 9:25 AM 67.08 30,014.03 5.8 77.0 25.0 0.80 0.06 180 16 15 240.00 136.80 4.00 120.00 68.40 52.00 0.00 0.00 100.00 0.00 0.00 100.00 250 .0 142.50 0.00 0.00 0.00 100.00 573.28 965.98 3.69 1.32 1466.85 6/30/17 1:10 PM 99.75 30,113.78 5.5 95.0 35.0 0.70 0.05 198 17 16 190.00 108.30 24.00 138.00 78.66 44.80 4.00 2.28 98.40 0.00 0.00 100.00 250 .0 142.50 0.00 0.00 0.00 100.00 554.67 934.63 5.65 1.36 1472.50 7/17/17 2:38 PM 0.00 30,113.78 4.8 108.0 42.2 1.00 0.07 227 20 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 1472. 50 7/17/17 3:30 PM 0.87 30,114.65 4.8 108.0 42.2 1.00 0.07 227 20 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 95.0 54.15 0.00 0.00 0.00 100.00 205.95 347.03 0.02 0.5 7 1472.52 7/21/17 3:44 PM 96.23 30,210.88 4.8 99.0 37.2 1.00 0.07 189 16 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 550.70 927.94 5.12 1.28 1477.64 7/24/17 1:40 PM 69.93 30,280.82 5 102.0 38.9 1.00 0.07 179 16 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 449.16 756.84 2.87 0 .98 1480.50 7/28/17 10:15 AM 92.58 30,373.40 5 91.0 32.8 1.00 0.07 193 17 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 558.70 941.42 5.19 1.35 1485.69 8/1/17 11:00 AM 96.75 30,470.15 4.8 96.0 35.6 1.00 0.07 150 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 210.0 119.70 0.00 0.00 0.00 100.00 465.09 783.67 3.48 0.86 1489.17 8/4/17 8:30 AM 69.50 30,539.65 5.2 82.0 27.8 1.00 0.07 175 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0 .00 0.00 100.00 329.43 555.09 2.12 0.73 1491.29 8/7/17 3:55 PM 79.42 30,619.07 4.6 101.0 38.3 1.00 0.07 172 15 14 1.50 0.86 99.35 0.00 0.00 100.00 0.00 0.00 100. 00 0.00 0.00 100.00 230.0 131.10 0.00 0.00 0.00 100.00 504.84 850.66 3.53 1. 07 1494.82 ERM Page 9 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 8/11/17 11:10 AM 91.25 30,710.32 5 91.0 32.8 1.00 0.07 174 15 14 1.00 0.57 99.35 0.00 0.00 100.00 0.00 0. 00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 346.40 583.68 2 .86 0.75 1497.68 8/18/17 9:25 AM 166.25 30,876.57 5.1 81.0 27.2 1.00 0.07 184 16 15 25.00 14.25 82.14 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 318.66 536 .94 5.16 0.75 1502.84 8/21/17 10:10 AM 72.75 30,949.32 5 75.0 23.9 1.00 0.07 180 16 15 55.00 31.35 52.17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 264.69 446.0 1 1.86 0.61 1504.70 8/25/17 9:45 AM 95.58 31,044.90 5.1 84.0 28.9 1.00 0.07 175 15 15 62.00 35.34 55.71 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 316.90 533 .98 2.79 0.70 1507.49 8/28/17 7:50 AM 70.08 31,114.98 5 80.0 26.7 1.00 0.07 180 16 15 65.00 37.05 56.08 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 148.0 84.36 0.00 0.00 0.00 100.00 337.49 568.6 8 2.26 0.77 1509.75 9/1/17 11:35 AM 99.75 31,214.73 5.5 95.0 35.0 1.00 0.07 181 16 15 130.00 74.10 27.78 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 399.37 672.93 3.72 0.90 1513.47 9/4/17 9:25 AM 69.83 31,284.57 5.1 85.0 29.4 1.00 0.07 178 15 15 105.00 59.85 19.23 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0.00 0.00 100.00 293.73 494.93 1.92 0.66 1515.39 9/8/17 12:00 PM 98.58 31,383.15 5 85.0 29.4 1.00 0.07 190 17 16 155.00 88.35 11.43 2.00 1.14 98.86 0.00 0.00 100.00 0.00 0.00 100.00 175.0 9 9.75 0.00 0.00 0.00 100.00 395.40 666.25 3.89 0.95 1519.28 9/11/17 1:15 PM 73.25 31,456.40 4.8 91.0 32.8 1.00 0.07 185 16 15 110.00 62.70 9.84 18.00 10.26 85.25 0.00 0.00 100.00 0.00 0.00 100.00 122.0 69.54 0.00 0.00 0.00 100.00 272.65 459.41 1.92 0.63 1521.20 9/15/17 9:40 AM 92.42 31,548.82 5.1 71.0 21.7 1.00 0.07 190 17 16 88.00 50.16 7.37 25.00 14.25 73.68 0. 00 0.00 100.00 0.00 0.00 100.00 95.0 54.15 0.00 0.00 0.00 100.00 220.31 371. 22 2.09 0.54 1523.28 9/18/17 12:35 PM 74.92 31,623.73 4.7 87.0 30.6 1.00 0.07 178 15 15 220.00 125.40 12.00 105.00 59.85 58.00 0.00 0.00 100.00 0.00 0.00 100.00 25 0.0 142.50 0.00 0.00 0.00 100.00 562.79 948.31 3.93 1.26 1527.21 9/22/17 12:15 PM 95.67 31,719.40 5 73.0 22.8 1.00 0.07 195 17 17 205.00 116.85 2.38 115.00 65.55 45.24 0.00 0.00 100.00 0.00 0.00 100.00 210 .0 119.70 0.00 0.00 0.00 100.00 485.17 817.51 4.87 1.22 1532.09 9/25/17 11:16 AM 71.02 31,790.42 4.8 80.0 26.7 1.00 0.07 194 17 16 210.00 119.70 16.00 150.00 85.50 40.00 0.00 0.00 100.00 0.00 0.00 100.00 25 0.0 142.50 0.00 0.00 0.00 100.00 570.09 960.61 4.17 1.41 1536.25 9/29/17 2:47 PM 99.52 31,889.93 4.8 95.0 35.0 0.80 0.06 212 18 17 195.00 111.15 7.14 180.00 102.60 14.29 0.00 0.00 100.00 0.00 0.00 100.00 21 0.0 119.70 0.00 0.00 0.00 100.00 465.93 785.09 5.06 1.22 1541.32 10/2/17 11:13 AM 68.43 31,958.37 5.20 75.0 23.9 0.80 0.06 191 17 16 215.00 122.55 6.52 155.00 88.35 32.61 6.00 3.42 97.39 0.00 0.00 100.00 230. 0 131.10 0.00 0.00 0.00 100.00 529.39 892.02 3.70 1.30 1545.01 10/6/17 10:35 AM 95.37 32,053.73 5.40 74.0 23.3 0.80 0.06 191 17 16 215.00 122.55 6.52 200.00 114.00 13.04 19.50 11.12 91.52 0.00 0.00 100.00 2 30.0 131.10 0.00 0.00 0.00 100.00 530.38 893.69 5.16 1.30 1550.18 10/9/17 10:30 AM 71.92 32,125.65 5.80 73.0 22.8 0.80 0.06 207 18 18 195.00 111.15 18.75 195.00 111.15 18.75 38.00 21.66 84.17 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 554.48 934.30 4.44 1.48 1554.62 10/13/17 10:55 AM 96.42 32,222.07 5.60 72.0 22.2 0.80 0.06 190 17 16 230.00 131.10 20.69 175.00 99.75 39.66 60.00 34.20 79.31 0.00 0.00 100.00 2 90.0 165.30 0.00 0.00 0.00 100.00 671.26 1131.07 6.60 1.64 1561.22 10/16/17 9:45 AM 70.83 32,292.90 5.40 65.0 18.3 0.80 0.06 200 17 17 220.00 125.40 10.20 155.00 88.35 36.73 58.00 33.06 76.33 0.00 0.00 100.00 2 45.0 139.65 0.00 0.00 0.00 100.00 574.66 968.31 4.43 1.50 1565.65 2/13/18 8:30 AM 0.00 32,292.90 4.80 57.0 13.9 1.70 0.12 225 20 20 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.6 0.34 0.00 0.00 0.00 100.00 1.43 2.41 0.00 0.00 1565.65 2/16/18 10:53 AM 74.38 32,367.28 4.50 62.0 16.7 1.00 0.07 197 17 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 97.5 55.58 0.00 0. 00 0.00 100.00 230.01 387.56 1.85 0.60 1567.50 2/19/18 11:03 AM 72.17 32,439.45 -- 48.0 8.9 1.00 0.07 201 17 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 120.0 68.40 0.00 0 .00 0.00 100.00 290.89 490.15 2.38 0.79 1569.88 2/26/18 12:25 PM 169.37 32,608.82 3.60 55.0 12.8 1.00 0.07 207 18 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 1569.88 3/2/18 11:15 AM 94.83 32,703.65 4.60 49.0 9.4 1.00 0.07 207 18 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 375.00 631.87 4.14 1.05 1574.02 3/5/18 10:55 AM 71.67 32,775.32 4.40 61.0 16.1 1.00 0.07 215 19 19 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 128.0 72.96 0.00 0 .00 0.00 100.00 302.54 509.78 2.56 0.86 1576.59 3/9/18 10:10 AM 95.25 32,870.57 4.50 69.0 20.6 1.00 0.07 204 18 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 120.0 68.40 0.00 0 .00 0.00 100.00 279.34 470.68 2.94 0.74 1579.52 3/12/18 7:25 AM 69.25 32,939.82 4.60 51.0 10.6 1.00 0.07 194 17 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 373.53 629.40 2.81 0.97 1582.33 3/16/18 12:45 PM 101.33 33,041.15 8.50 53.0 11.7 0.75 0.05 141 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 1582.33 3/19/18 9:40 AM 68.92 33,110.07 9.00 51.0 10.6 0.80 0.06 182 16 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0 .00 0.00 100.00 301.23 507.58 2.12 0.74 1584.45 3/23/18 9:50 AM 96.17 33,206.23 9.00 46.0 7.8 0.80 0.06 175 15 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 - 0.00 0.00 0.00 0.00 1584.45 3/26/18 9:25 AM 71.58 33,277.82 9.50 47.0 8.3 0.80 0.06 150 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 45.5 25.94 0.00 0. 00 0.00 100.00 110.51 186.22 0.67 0.22 1585.12 3/30/18 8:40 AM 95.25 33,373.07 9.00 61.0 16.1 0.80 0.06 157 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 70.0 39.90 0.00 0. 00 0.00 100.00 165.45 278.78 1.36 0.34 1586.49 4/2/18 10:34 AM 73.90 33,446.97 4.40 68.0 20.0 1.00 0.07 211 18 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 135.0 76.95 0.00 0 .00 0.00 100.00 314.85 530.52 2.66 0.86 1589.14 4/6/18 1:05 PM 98.52 33,545.48 4.30 69.0 20.6 1.00 0.07 206 18 18 1.50 0.86 98.86 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 132.0 75.24 0.00 0.00 0.00 100.00 307.27 517. 75 3.37 0.82 1592.52 4/9/18 11:58 AM 70.88 33,616.37 4.30 75.0 23.9 1.00 0.07 239 21 20 14.50 8.27 91.71 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 402.80 678 .71 3.65 1.24 1596.17 4/13/18 12:00 PM 96.03 33,712.40 4.80 71.0 21.7 1.00 0.07 209 18 18 19.50 11.12 88.66 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 172.0 98.04 0.00 0.00 0.00 100.00 398.87 67 2.11 4.32 1.08 1600.49 4/16/18 11:30 AM 71.50 33,783.90 4.50 71.0 21.7 1.00 0.07 226 20 19 22.00 12.54 87.06 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 394.24 66 4.29 3.43 1.15 1603.92 4/20/18 10:45 AM 95.25 33,879.15 4.70 70.0 21.1 1.00 0.07 179 16 15 47.70 27.19 66.05 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 140.5 80.09 0.00 0.00 0.00 100.00 326.44 55 0.05 3.01 0.76 1606.93 4/23/18 8:45 AM 70.00 33,949.15 4.80 70.0 21.1 1.00 0.07 199 17 17 48.00 27.36 54.29 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0.00 0.00 100.00 243.96 41 1.07 1.84 0.63 1608.77 4/27/18 9:25 AM 96.67 34,045.82 5.20 60.0 15.6 1.00 0.07 197 17 17 108.00 61.56 41.62 2.00 1.14 98.92 0.00 0.00 100.00 0.00 0.00 100.00 185.0 1 05.45 0.00 0.00 0.00 100.00 438.10 738.21 4.60 1.14 1613.36 4/30/18 2:45 PM 77.33 34,123.15 4.20 72.0 22.2 1.00 0.07 196 17 17 47.00 26.79 69.68 6.00 3.42 96.13 0. 00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 358.77 604 .54 2.93 0.91 1616.29 5/4/18 8:45 AM 90.00 34,213.15 5.00 68.0 20.0 1.00 0.07 186 16 16 95.00 54.15 13.64 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 110.0 62.70 0.00 0.00 0.00 100.00 256.54 43 2.28 2.33 0.62 1618.62 5/7/18 7:08 AM 70.38 34,283.53 5.00 60.0 15.6 1.00 0.07 208 18 18 118.00 67.26 32.57 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 414.42 698.30 3.34 1.14 1621.97 5/11/18 2:25 PM 103.28 34,386.82 4.60 83.0 28.3 1.00 0.07 212 18 18 45.00 25.65 70.00 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 340.16 57 3.18 3.93 0.91 1625.90 5/14/18 2:25 PM 72.00 34,458.82 5.00 85.0 29.4 1.00 0.07 216 19 18 65.00 37.05 59.38 8.50 4.85 94.69 0. 00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 361.51 609 .14 2.95 0.98 1628.85 5/18/18 4:14 PM 97.82 34,556.63 4.80 86.0 30.0 1.00 0.07 214 19 18 75.00 42.75 51.61 14.00 7.98 90.97 0 .00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 349.57 58 9.03 3.84 0.94 1632.69 5/21/18 10:50 AM 66.60 34,623.23 4.90 71.0 21.7 0.80 0.06 198 17 17 68.00 38.76 35.24 14.00 7.98 86.67 0 .00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0.00 0.00 100.00 243.50 41 0.30 1.73 0.62 1634.42 5/25/18 11:00 AM 96.17 34,719.40 5.50 62.0 16.7 0.80 0.06 218 19 19 108.00 61.56 38.29 45.00 25.65 74.29 0.00 0.00 100.00 0.00 0.00 100.00 175. 0 99.75 0.00 0.00 0.00 100.00 412.83 695.63 4.75 1.18 1639.16 5/28/18 11:05 AM 72.08 34,791.48 5.00 86.0 30.0 1.00 0.07 189 16 16 58.00 33.06 63.75 25.00 14.25 84.38 0.00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 360.85 6 08.03 2.57 0.86 1641.74 6/1/18 1:26 PM 98.35 34,889.83 5.40 81.0 27.2 1.00 0.07 217 19 18 65.00 37.05 56.67 32.00 18.24 78.67 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 341.42 5 75.30 3.86 0.94 1645.60 ERM Page 10 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 6/4/18 7:14 AM 65.80 34,955.63 5.00 72.0 22.2 0.80 0.06 205 18 17 75.00 42.75 28.57 60.00 34.20 42.86 0.00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0.00 0.00 100.00 243.04 4 09.53 1.76 0.64 1647.36 6/8/18 1:50 PM 102.60 35,058.23 5.00 88.0 31.1 0.80 0.06 208 18 17 75.00 42.75 46.43 38.00 21.66 72.86 1.00 0.57 99.29 0.00 0.00 100.00 140.0 79.80 0.00 0.00 0.00 100.00 314.59 53 0.08 3.50 0.82 1650.86 6/25/18 3:57 PM 0.00 35,058.23 5.00 98.0 36.7 0.80 0.06 218 19 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 8.0 4.56 0.00 0.00 0.00 100.00 17.65 29.75 0.00 0.00 1650.86 6/30/18 6:56 AM 110.98 35,169.22 5.00 74.0 23.3 0.70 0.05 202 18 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 345.90 582.84 4.15 0.90 1655.01 7/2/18 6:53 AM 47.95 35,217.17 4.80 69.0 20.6 0.80 0.06 194 17 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 360.81 607.97 1.82 0.91 1656.83 7/7/18 9:45 AM 122.87 35,340.03 5.00 88.0 31.1 0.80 0.06 204 18 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 460.65 776.19 6.01 1.17 1662.84 7/10/18 6:39 AM 68.90 35,408.93 5.00 72.0 22.2 0.80 0.06 201 17 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 198.0 112.86 0.00 0.00 0.00 100.00 458.31 772.25 3.42 1.19 1666.26 7/13/18 8:53 AM 74.23 35,483.17 5.40 85.0 29.4 0.80 0.06 205 18 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 350.21 590.11 2.80 0.90 1669.05 7/16/18 9:39 AM 72.77 35,555.93 5.40 86.0 30.0 0.80 0.06 200 17 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 383.40 646.03 2.92 0.96 1671.98 7/20/18 7:01 AM 93.37 35,649.30 5.50 74.0 23.3 0.80 0.06 201 18 17 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 392.02 660.56 3.95 1.01 1675.92 7/23/18 7:00 AM 71.98 35,721.28 5.60 74.0 23.3 1.00 0.07 191 17 16 1.00 0.57 99.40 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 168.0 95.76 0.00 0.00 0.00 100.00 387.41 652. 78 2.85 0.95 1678.77 7/27/18 6:56 AM 95.93 35,817.22 5.60 75.0 23.9 0.80 0.06 194 17 16 26.00 14.82 86.67 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 448.83 7 56.28 4.46 1.12 1683.23 7/30/18 7:00 AM 72.07 35,889.28 5.60 71.0 21.7 0.80 0.06 211 18 18 50.00 28.50 74.36 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 452.21 7 61.98 3.70 1.23 1686.93 8/3/18 7:04 AM 96.07 35,985.35 4.50 98.0 36.7 0.70 0.05 189 16 15 58.00 33.06 62.58 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 342.05 57 6.35 3.18 0.79 1690.11 8/6/18 2:50 PM 79.77 36,065.12 4.80 98.0 36.7 1.00 0.07 209 18 17 65.50 37.34 61.01 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 168.0 95.76 0.00 0.00 0.00 100.00 370.74 62 4.69 3.17 0.95 1693.29 8/10/18 6:58 AM 88.13 36,153.25 4.90 74.0 23.3 0.80 0.06 202 18 17 56.00 31.92 51.30 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 265.19 44 6.85 2.52 0.69 1695.81 8/13/18 8:03 AM 73.08 36,226.33 4.80 76.0 24.4 0.80 0.06 207 18 18 52.00 29.64 69.41 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 390.56 65 8.09 3.16 1.04 1698.97 8/17/18 2:45 PM 102.70 36,329.03 4.80 103.0 39.4 0.80 0.06 181 16 15 105.00 59.85 38.24 0.00 0.00 100.00 0.00 0.00 1 00.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 371.82 626.51 3.52 0.82 1702.49 8/20/18 10:04 AM 67.32 36,396.35 5.00 86.0 30.0 0.80 0.06 212 18 18 82.00 46.74 50.30 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 372.12 62 7.03 2.78 0.99 1705.26 8/24/18 4:48 PM 102.73 36,499.08 4.60 94.0 34.4 0.80 0.06 225 20 18 105.00 59.85 30.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 333.41 561.79 3.98 0.93 1709.25 8/27/18 10:50 AM 66.03 36,565.12 5.00 81.0 27.2 0.80 0.06 211 18 18 55.00 31.35 56.00 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0.00 0.00 100.00 284.52 47 9.41 2.10 0.76 1711.35 8/31/18 1:12 PM 98.37 36,663.48 5.00 86.0 30.0 0.80 0.06 214 19 18 85.00 48.45 43.33 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 338.29 57 0.03 3.73 0.91 1715.08 9/3/18 3:47 PM 74.58 36,738.07 4.80 99.0 37.2 0.80 0.06 203 18 16 105.00 59.85 34.38 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 352.45 593.88 2.73 0.88 1717.80 9/7/18 10:38 AM 90.85 36,828.92 5.00 86.0 30.0 0.80 0.06 216 19 18 75.00 42.75 40.00 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0.00 0.00 100.00 281.91 47 5.02 2.90 0.77 1720.70 9/10/18 9:02 AM 70.40 36,899.32 5.00 74.0 23.3 0.80 0.06 209 18 18 75.00 42.75 56.40 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 172.0 98.04 0.00 0.00 0.00 100.00 396.63 66 8.33 3.12 1.07 1723.83 9/14/18 11:03 AM 98.02 36,997.33 4.00 77.0 25.0 0.80 0.06 195 17 16 95.00 54.15 29.63 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 135.0 76.95 0.00 0.00 0.00 100.00 309.57 52 1.63 3.16 0.77 1726.98 9/17/18 9:23 AM 70.33 37,067.67 4.00 69.0 20.6 0.80 0.06 204 18 17 95.00 54.15 26.92 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0.00 0.00 100.00 302.62 50 9.91 2.34 0.80 1729.33 9/21/18 2:12 PM 100.82 37,168.48 4.40 97.0 36.1 0.80 0.06 204 18 17 120.00 68.40 17.24 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0.00 0.00 100.00 320.55 540.14 3.39 0.81 1732.72 9/24/18 12:10 PM 69.97 37,238.45 4.00 89.0 31.7 0.80 0.06 216 19 18 98.00 55.86 32.41 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0.00 0.00 100.00 325.23 54 8.01 2.57 0.88 1735.28 9/28/18 12:34 PM 96.40 37,334.85 4.00 92.0 33.3 0.80 0.06 211 18 17 110.00 62.70 22.54 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 142.0 80.94 0.00 0.00 0.00 100.00 316.77 533.76 3.34 0.83 1738.63 10/1/18 9:00 AM 68.43 37,403.28 4.00 68.0 20.0 0.80 0.06 204 18 18 95.00 54.15 13.64 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 110.0 62.70 0.00 0.00 0.00 100.00 256.54 43 2.28 1.94 0.68 1740.57 10/5/18 9:10 AM 96.17 37,499.45 4.00 62.0 16.7 0.80 0.06 203 18 18 65.00 37.05 18.75 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 80.0 45.60 0.00 0.00 0.00 100.00 188.72 318 .00 2.01 0.50 1742.58 10/8/18 8:05 AM 70.92 37,570.37 3.90 57.0 13.9 0.60 0.04 220 19 19 110.00 62.70 38.89 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 428.74 722.42 3.70 1.25 1746.28 10/12/18 8:29 AM 96.40 37,666.77 4.00 58.0 14.4 0.80 0.06 227 20 20 70.00 39.90 26.32 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 95.0 54.15 0.00 0.00 0.00 100.00 225.84 380 .54 2.73 0.68 1749.00 10/15/18 11:03 AM 74.57 37,741.33 4.40 77.0 25.0 0.80 0.06 219 19 19 78.00 44.46 25.71 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0.00 0.00 100.00 240.78 40 5.71 2.10 0.68 1751.10 10/22/18 2:40 PM 0.00 37,741.33 6.00 84.5 29.2 0.80 0.06 177 15 15 72.00 41.04 52.00 3.00 1.71 98.00 0. 00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 339.23 571 .60 0.00 0.00 1751.10 10/26/18 11:10 AM 92.50 37,833.83 6.40 74.0 23.3 0.80 0.06 199 17 17 105.00 59.85 32.69 4.50 2.57 97.12 0.00 0.00 100.00 0.00 0.00 100.00 156.0 8 8.92 0.00 0.00 0.00 100.00 359.74 606.16 3.54 0.92 1754.64 10/29/18 10:57 AM 71.78 37,905.62 6.80 69.0 20.6 0.80 0.06 184 16 16 100.00 57.00 61.54 7.50 4.28 97.12 0.00 0.00 100.00 0.00 0.00 100.00 260.0 1 48.20 0.00 0.00 0.00 100.00 605.23 1019.82 4.31 1.44 1758.96 11/2/18 2:13 PM 99.27 38,004.88 6.20 80.0 26.7 0.80 0.06 170 15 14 172.00 98.04 33.85 12.50 7.13 95.19 0.00 0.00 100.00 0.00 0.00 100.00 260.0 148.20 0.00 0.00 0.00 100.00 592.89 999.03 5.29 1.28 1764.24 11/5/18 3:00 PM 72.78 38,077.67 6.40 78.0 25.6 0.80 0.06 181 16 15 175.00 99.75 22.22 25.00 14.25 88.89 0.00 0.00 100.00 0.00 0.00 100.00 225. 0 128.25 0.00 0.00 0.00 100.00 514.99 867.76 3.60 1.19 1767.84 11/23/18 9:25 AM 0.00 38,077.67 6.80 55.0 12.8 0.70 0.05 183 16 16 145.00 82.65 -383.33 10.50 5.99 65.00 0.00 0.00 100.00 0.00 0.00 100.00 30. 0 17.10 0.00 0.00 0.00 100.00 71.73 120.87 0.00 0.00 1767.84 11/26/18 8:40 AM 71.25 38,148.92 6.70 56.5 13.6 0.70 0.05 205 18 18 132.00 75.24 24.57 20.00 11.40 88.57 0.00 0.00 100.00 0.00 0.00 100.00 175. 0 99.75 0.00 0.00 0.00 100.00 417.23 703.04 3.38 1.14 1771.22 11/30/18 3:18 PM 102.63 38,251.55 6.40 65.5 18.6 0.80 0.06 194 17 17 145.00 82.65 19.44 50.00 28.50 72.22 0.00 0.00 100.00 0.00 0.00 100.00 180. 0 102.60 0.00 0.00 0.00 100.00 421.80 710.73 4.57 1.07 1775.79 12/3/18 12:10 PM 68.87 38,320.42 5.80 62.8 17.1 0.80 0.06 197 17 17 150.00 85.50 1.32 45.00 25.65 70.39 0.00 0.00 100.00 0.00 0.00 100.00 152.0 86.64 0.00 0.00 0.00 100.00 358.03 603.28 2.65 0.93 1778.44 12/7/18 3:25 PM 0.00 38,320.42 7.40 59.5 15.3 0.80 0.06 195 17 17 155.00 88.35 -222.92 52.00 29.64 -8.33 0.00 0.00 100.00 0.00 0.00 100.00 48 .0 27.36 0.00 0.00 0.00 100.00 113.78 191.72 0.00 0.00 1778.44 12/10/18 3:24 PM 71.98 38,392.40 6.00 57.3 14.1 0.70 0.05 167 15 15 165.00 94.05 26.67 80.00 45.60 64.44 0.00 0.00 100.00 0.00 0.00 100.00 225. 0 128.25 0.00 0.00 0.00 100.00 535.61 902.51 3.56 1.19 1782.00 12/14/18 10:44 AM 91.33 38,483.73 6.20 61.8 16.6 0.80 0.06 184 16 16 168.00 95.76 13.85 65.00 37.05 66.67 0.00 0.00 100.00 0.00 0.00 100.00 195. 0 111.15 0.00 0.00 0.00 100.00 460.19 775.42 4.24 1.11 1786.24 12/17/18 9:15 AM 70.52 38,554.25 6.60 55.2 12.9 0.80 0.06 171 15 15 186.00 106.02 9.27 105.00 59.85 48.78 0.00 0.00 100.00 0.00 0.00 100.00 205 .0 116.85 0.00 0.00 0.00 100.00 489.99 825.64 3.28 1.12 1789.52 12/21/18 2:20 PM 101.08 38,655.33 7.50 56.2 13.4 0.80 0.06 184 16 16 175.00 99.75 3.85 90.00 51.30 50.55 0.00 0.00 100.00 0.00 0.00 100.00 182.0 103.74 0.00 0.00 0.00 100.00 434.17 731.58 4.49 1.07 1794.00 12/24/18 9:20 AM 67.00 38,722.33 6.50 62.5 16.9 0.80 0.06 153 13 13 170.00 96.90 -9.68 110.00 62.70 29.03 0.00 0.00 100.00 0.00 0.00 100.00 155 .0 88.35 0.00 0.00 0.00 100.00 365.30 615.54 2.05 0.73 1796.05 ERM Page 11 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 12/28/18 12:20 PM 99.00 38,821.33 7.50 50.0 10.0 0.70 0.05 163 14 15 160.00 91.20 -10.34 120.00 68.40 17.24 0.00 0.00 100.00 0.00 0.00 100.00 14 5.0 82.65 0.00 0.00 0.00 100.00 350.12 589.95 3.18 0.77 1799.23 12/31/18 1:09 PM 72.82 38,894.15 8.00 55.3 12.9 0.70 0.05 164 14 14 145.00 82.65 -3.57 110.00 62.70 21.43 0.00 0.00 100.00 0.00 0.00 100.00 140 .0 79.80 0.00 0.00 0.00 100.00 334.56 563.74 2.22 0.73 1801.45 1/4/19 2:13 PM 97.07 38,991.22 7.80 64.1 17.8 0.70 0.05 154 13 13 100.00 57.00 -8.70 60.00 34.20 34.78 0.00 0.00 100.00 0.00 0.00 100.00 92.0 52.44 0.00 0.00 0.00 100.00 216.16 364.23 1.77 0.44 1803.21 1/7/19 3:10 PM 72.95 39,064.17 7.50 66.8 19.3 0.70 0.05 140 12 12 135.00 76.95 -58.82 105.00 59.85 -23.53 0.00 0.00 100.00 0.00 0.00 100.00 8 5.0 48.45 0.00 0.00 0.00 100.00 198.69 334.79 1.10 0.36 1804.31 1/11/19 11:59 AM 92.82 39,156.98 8.00 64.7 18.2 0.80 0.06 155 13 13 150.00 85.50 3.23 125.00 71.25 19.35 0.00 0.00 100.00 0.00 0.00 100.00 155. 0 88.35 0.00 0.00 0.00 100.00 363.77 612.95 2.85 0.74 1807.16 1/14/19 12:52 PM 72.88 39,229.87 8.00 51.7 10.9 0.70 0.05 156 14 14 160.00 91.20 20.00 150.00 85.50 25.00 2.50 1.43 98.75 0.00 0.00 100.00 200. 0 114.00 0.00 0.00 0.00 100.00 481.31 811.01 3.06 1.01 1810.23 1/18/19 10:55 AM 94.05 39,323.92 9.00 65.0 18.3 0.60 0.04 146 13 13 168.00 95.76 -46.09 155.00 88.35 -34.78 45.00 25.65 60.87 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 269.74 454.51 2.02 0.52 1812.25 1/28/19 11:31 AM 59.52 39,383.44 9.00 61.9 16.6 0.40 0.03 182 16 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 353.92 596.36 2.10 0.00 1814.35 2/1/19 8:21 AM 92.83 39,476.27 8.80 54.5 12.5 0.40 0.03 143 12 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 430.82 725.94 3.17 0.82 1817.51 2/4/19 12:29 PM 76.13 39,552.40 8.00 61.4 16.3 0.50 0.04 144 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0 .00 0.00 100.00 342.46 577.04 2.05 0.65 1819.57 2/8/19 12:06 PM 95.62 39,648.02 8.50 55.0 12.8 0.60 0.04 146 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 135.0 76.95 0.00 0 .00 0.00 100.00 322.80 543.92 2.51 0.63 1822.07 2/13/19 11:22 AM 119.27 39,767.29 8.00 58.5 14.7 0.60 0.04 147 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 368.12 620.29 3.56 0.72 1825.63 2/15/19 12:33 PM 49.18 39,816.47 9.00 54.5 12.5 0.50 0.04 137 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 10.0 5.70 0.00 0.0 0 0.00 100.00 23.93 40.33 0.09 0.04 1825.72 2/20/19 9:38 AM 117.08 39,933.55 8.50 48.6 9.2 0.50 0.04 164 14 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 363.19 611.97 3.92 0.80 1829.64 2/22/19 10:05 AM 48.45 39,982.00 7.50 54.1 12.3 0.60 0.04 161 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 5.0 2.85 0.00 0.00 0.00 100.00 11.98 20.18 0.05 0.03 1829.69 2/25/19 10:45 AM 72.67 40,054.67 9.00 65.8 18.8 0.60 0.00 150 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.0 0.00 0.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 1829.69 3/1/19 10:10 AM 95.42 40,150.09 7.50 65.9 18.8 0.60 0.04 133 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 70.0 39.90 0.00 0. 00 0.00 100.00 163.91 276.19 1.13 0.28 1830.82 3/4/19 3:30 PM 77.33 40,227.42 8.00 63.4 17.4 0.80 0.06 139 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 68.0 38.76 0.00 0. 00 0.00 100.00 159.99 269.58 0.94 0.29 1831.76 3/8/19 11:18 AM 91.80 40,319.22 8.50 59.0 15.0 0.70 0.05 128 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 15.0 8.55 0.00 0.0 0 0.00 100.00 35.59 59.97 0.23 0.06 1831.99 3/11/19 11:20 AM 72.03 40,391.25 10.00 55.1 12.8 0.70 0.05 125 11 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 18.0 10.26 0.00 0. 00 0.00 100.00 43.03 72.51 0.21 0.07 1832.20 3/15/19 3:30 PM 100.17 40,491.42 9.50 69.3 20.7 0.70 0.05 136 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 50.0 28.50 0.00 0. 00 0.00 100.00 116.32 196.01 0.86 0.21 1833.06 3/18/19 12:40 PM 69.17 40,560.59 8.50 76.0 24.4 0.70 0.05 142 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0 .00 0.00 100.00 287.17 483.89 1.51 0.52 1834.57 3/22/19 11:45 AM 95.08 40,655.67 9.00 69.3 20.7 0.70 0.05 141 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 95.0 54.15 0.00 0. 00 0.00 100.00 221.02 372.41 1.60 0.40 1836.17 3/25/19 10:45 AM 71.00 40,726.67 8.00 73.5 23.1 0.70 0.05 214 19 18 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 346.22 583.39 2.82 0.95 1838.99 3/28/19 11:00 AM 72.25 40,798.92 8.00 64.4 18.0 0.70 0.05 176 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0 .00 0.00 100.00 305.27 514.38 2.12 0.70 1841.11 4/1/19 12:35 PM 97.58 40,896.50 8.40 84.5 29.2 0.70 0.05 144 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 339.23 571.60 2.50 0.62 1843.62 4/5/19 11:38 AM 95.05 40,991.55 0.70 68.7 20.4 7.50 0.55 142 12 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0 .00 0.00 100.00 244.56 412.08 1.84 0.46 1845.46 4/8/19 1:43 PM 74.08 41,065.64 9.50 83.6 28.7 7.50 0.55 140 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0 .00 0.00 100.00 283.16 477.12 1.60 0.52 1847.06 4/12/19 3:45 PM 98.03 41,163.67 9.50 70.7 21.5 0.70 0.05 150 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0 .00 0.00 100.00 243.64 410.53 1.93 0.47 1848.99 4/15/19 3:10 PM 71.42 41,235.09 9.50 78.2 25.7 0.70 0.05 138 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0 .00 0.00 100.00 331.76 559.02 1.74 0.58 1850.72 4/19/19 1:05 PM 93.92 41,329.00 9.50 91.1 32.8 0.80 0.06 125 11 10 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 335.16 564.75 2.04 0.52 1852.76 4/22/19 2:10 PM 73.08 41,402.09 9.50 85.6 29.8 0.75 0.05 137 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0 .00 0.00 100.00 282.12 475.37 1.48 0.49 1854.24 4/26/19 10:34 AM 92.40 41,494.49 9.00 90.6 32.6 0.80 0.06 148 13 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 105.0 59.85 0.00 0 .00 0.00 100.00 234.83 395.68 1.66 0.43 1855.91 4/30/19 1:26 PM 98.87 41,593.35 9.00 80.2 26.8 0.80 0.06 136 12 11 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 108.5 61.85 0.00 0 .00 0.00 100.00 247.33 416.75 1.76 0.43 1857.66 5/3/19 10:38 AM 69.20 41,662.55 8.50 73.7 23.2 0.80 0.06 138 12 12 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 145.0 82.65 0.00 0 .00 0.00 100.00 334.56 563.73 1.71 0.59 1859.37 5/6/19 10:45 AM 72.12 41,734.67 7.50 75.3 24.1 0.80 0.06 154 13 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 140.0 79.80 0.00 0 .00 0.00 100.00 322.06 542.67 1.91 0.64 1861.28 5/10/19 4:23 PM 101.63 41,836.30 7.50 74.5 23.6 6.50 0.47 169 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 357.10 601.71 3.37 0.80 1864.66 5/13/19 1:25 PM 69.03 41,905.34 7.50 85.2 29.6 0.75 0.05 146 13 12 2.00 1.14 98.86 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 395.25 666. 01 2.09 0.73 1866.75 5/17/19 10:45 AM 93.33 41,998.67 7.80 61.7 16.5 0.60 0.04 163 14 14 1.50 0.86 99.23 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 460.28 775 .57 3.84 0.99 1870.60 5/20/19 7:35 AM 68.83 42,067.50 7.50 55.5 13.1 0.60 0.04 150 13 13 22.00 12.54 90.83 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 240.0 136.80 0.00 0.00 0.00 100.00 573.31 9 66.04 3.28 1.14 1873.87 5/24/19 1:20 PM 101.75 42,169.25 7.50 81.4 27.4 0.70 0.05 144 12 12 22.50 12.83 86.36 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 375.29 63 2.36 2.89 0.68 1876.77 5/27/19 11:00 AM 69.67 42,238.92 9.50 65.5 18.6 0.60 0.04 143 12 12 45.00 25.65 72.73 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 386.65 65 1.50 2.10 0.72 1878.87 5/31/19 10:32 AM 95.53 42,334.45 9.50 78.6 25.9 0.60 0.04 145 13 12 55.00 31.35 57.69 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0.00 0.00 100.00 297.22 50 0.81 2.19 0.55 1881.06 6/3/19 4:25 PM 77.88 42,412.34 9.50 94.7 34.8 0.70 0.05 145 13 12 18.00 10.26 84.35 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 255.29 43 0.16 1.48 0.46 1882.54 6/7/19 7:42 AM 87.28 42,499.62 8.50 63.4 17.4 0.60 0.04 146 13 13 55.00 31.35 69.44 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 423.49 7 13.59 2.94 0.81 1885.48 6/10/19 3:20 PM 79.63 42,579.25 7.20 104.5 40.3 0.80 0.06 160 14 13 15.00 8.55 91.43 0.00 0.00 100.00 0.00 0.00 100 .00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 381.73 643.22 2.46 0. 74 1887.95 6/14/19 8:40 AM 89.33 42,668.59 7.80 75.7 24.3 0.70 0.05 155 13 13 45.00 25.65 66.67 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 135.0 76.95 0.00 0.00 0.00 100.00 310.32 52 2.89 2.29 0.62 1890.24 6/17/19 6:14 AM 69.57 42,738.15 7.50 69.4 20.8 0.70 0.05 151 13 13 55.00 31.35 68.57 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 407.06 68 5.90 2.30 0.79 1892.54 6/21/19 7:32 AM 97.30 42,835.45 7.50 67.1 19.5 0.65 0.05 154 13 13 65.00 37.05 64.86 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 432.20 7 28.26 3.51 0.87 1896.05 6/24/19 8:05 AM 72.55 42,908.00 7.80 78.8 26.0 0.70 0.05 168 15 14 68.50 39.05 58.48 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 377.10 63 5.41 2.44 0.81 1898.50 ERM Page 12 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 6/28/19 6:40 AM 94.58 43,002.59 7.80 64.1 17.8 0.60 0.04 170 15 15 98.00 55.86 60.80 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 250.0 142.50 0.00 0.00 0.00 100.00 587.40 9 89.77 5.14 1.30 1903.63 7/1/19 3:30 PM 80.83 43,083.42 7.20 97.0 36.1 0.70 0.05 162 14 13 36.00 20.52 78.18 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 364.77 61 4.64 2.45 0.73 1906.08 7/5/19 7:08 AM 87.63 43,171.05 7.20 71.2 21.8 0.70 0.05 160 14 14 105.00 59.85 40.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 405.68 683.57 3.07 0.84 1909.15 7/8/19 7:17 AM 72.15 43,243.20 7.50 66.6 19.2 0.70 0.05 157 14 13 120.00 68.40 39.39 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 198.0 112.86 0.00 0.00 0.00 100.00 463.01 780.17 2.84 0.95 1911.99 7/12/19 2:45 PM 103.47 43,346.67 7.80 97.4 36.3 8.00 0.58 163 14 14 45.00 25.65 70.00 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 331.37 55 8.36 2.96 0.69 1914.95 7/15/19 4:32 PM 73.78 43,420.45 7.50 102.9 39.4 0.80 0.06 156 14 13 55.00 31.35 66.05 0.00 0.00 100.00 0.00 0.00 10 0.00 0.00 0.00 100.00 162.0 92.34 0.00 0.00 0.00 100.00 354.38 597.13 2.08 0 .68 1917.03 7/19/19 4:00 PM 95.47 43,515.92 8.00 96.3 35.7 7.50 0.55 157 14 13 55.00 31.35 68.57 1.50 0.86 99.14 0. 00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 387.36 652 .71 3.09 0.78 1920.12 7/22/19 6:59 AM 62.98 43,578.90 7.80 73.5 23.1 0.75 0.05 166 14 14 90.00 51.30 40.00 1.50 0.86 99.00 0. 00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 346.22 583 .39 1.94 0.74 1922.06 7/26/19 6:43 AM 95.73 43,674.64 8.30 78.1 25.6 0.70 0.05 161 14 14 75.00 42.75 34.78 10.00 5.70 91.30 0 .00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 263.17 44 3.44 2.16 0.54 1924.22 7/29/19 9:31 AM 74.80 43,749.44 8.50 90.7 32.6 0.80 0.06 157 14 13 58.00 33.06 61.33 10.00 5.70 93.33 0 .00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 335.40 56 5.16 2.05 0.66 1926.26 8/2/19 9:34 AM 96.05 43,845.49 8.40 80.0 26.7 0.80 0.06 168 15 14 68.00 38.76 43.33 12.00 6.84 90.00 0 .00 0.00 100.00 0.00 0.00 100.00 120.0 68.40 0.00 0.00 0.00 100.00 273.64 46 1.09 2.34 0.59 1928.60 8/5/19 4:15 PM 78.68 43,924.17 8.20 99.9 37.7 0.80 0.06 154 13 12 98.50 56.15 42.06 9.20 5.24 94.59 0. 00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 373.88 629 .98 2.32 0.71 1930.92 8/9/19 10:25 AM 90.17 44,014.34 8.20 81.6 27.6 0.80 0.06 175 15 15 90.00 51.30 50.00 8.50 4.85 95.28 0. 00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 409.25 68 9.59 3.42 0.91 1934.34 8/12/19 4:58 PM 78.55 44,092.89 8.00 97.1 36.2 0.80 0.06 170 15 14 115.80 66.01 40.80 8.00 4.56 95.91 0.00 0.00 100.00 0.00 0.00 100.00 195.6 1 11.49 0.00 0.00 0.00 100.00 432.34 728.49 2.96 0.90 1937.30 8/16/19 7:30 AM 86.53 44,179.42 7.80 75.5 24.2 0.75 0.05 166 14 14 125.00 71.25 24.24 22.00 12.54 86.67 0.00 0.00 100.00 0.00 0.00 100.00 165. 0 94.05 0.00 0.00 0.00 100.00 379.42 639.33 2.92 0.81 1940.21 8/19/19 1:20 PM 77.83 44,257.25 8.60 88.5 31.4 0.80 0.06 167 15 14 100.00 57.00 41.18 8.00 4.56 95.29 0.00 0.00 100.00 0.00 0.00 100.00 170.0 9 6.90 0.00 0.00 0.00 100.00 381.65 643.08 2.58 0.80 1942.80 8/23/19 2:18 PM 96.97 44,354.22 8.70 103.7 39.8 0.80 0.06 157 14 13 123.00 70.11 25.45 12.00 6.84 92.73 0.00 0.00 1 00.00 0.00 0.00 100.00 165.0 94.05 0.00 0.00 0.00 100.00 360.43 607.33 2.79 0.69 1945.59 8/26/19 3:47 PM 73.48 44,427.70 8.50 103.1 39.5 0.80 0.06 157 14 13 135.00 76.95 27.03 15.00 8.55 91.89 0.00 0.00 1 00.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 404.55 681.67 2.3 7 0.77 1947.96 8/30/19 1:00 PM 93.22 44,520.92 8.50 93.4 34.1 0.80 0.06 159 14 13 120.00 68.40 29.41 15.00 8.55 91.18 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 378.27 637.39 2.90 0.75 1950.86 9/2/19 11:52 AM 70.87 44,591.79 8.60 101.2 38.4 0.80 0.06 152 13 12 120.00 68.40 29.41 26.00 14.82 84.71 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 373.01 628.52 2.0 5 0.70 1952.91 9/6/19 3:16 PM 99.40 44,691.19 8.30 98.4 36.9 0.80 0.06 150 13 12 135.00 76.95 28.19 20.00 11.40 89.36 0.00 0.00 100.00 0.00 0.00 100.00 188. 0 107.16 0.00 0.00 0.00 100.00 414.57 698.56 3.16 0.76 1956.07 9/9/19 5:08 PM 73.87 44,765.05 8.00 87.5 30.8 0.80 0.06 158 14 13 150.00 85.50 23.08 19.50 11.12 90.00 0.00 0.00 100.00 0.00 0.00 100.00 195. 0 111.15 0.00 0.00 0.00 100.00 438.58 739.00 2.68 0.87 1958.74 9/13/19 3:21 PM 94.22 44,859.27 8.50 101.5 38.6 0.80 0.06 162 14 13 155.00 88.35 20.51 26.00 14.82 86.67 0.00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 427.63 720.57 3. 32 0.85 1962.07 9/16/19 5:40 PM 74.32 44,933.59 8.00 75.8 24.3 0.80 0.06 160 14 14 135.00 76.95 25.00 34.00 19.38 81.11 0.00 0.00 100.00 0.00 0.00 100.00 180. 0 102.60 0.00 0.00 0.00 100.00 413.68 697.06 2.63 0.85 1964.70 9/20/19 2:45 PM 93.08 45,026.67 7.80 84.3 29.1 0.80 0.06 158 14 13 145.00 82.65 9.38 32.00 18.24 80.00 0.00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 361.97 609.93 2.80 0.72 1967.50 9/23/19 11:15 AM 68.50 45,095.17 8.50 87.4 30.8 0.80 0.06 162 14 13 145.00 82.65 11.59 62.00 35.34 62.20 0.00 0.00 100.00 0.00 0.00 100.00 164. 0 93.48 0.00 0.00 0.00 100.00 368.92 621.63 2.14 0.75 1969.64 9/27/19 11:35 AM 96.33 45,191.50 8.20 83.5 28.6 0.80 0.06 171 15 14 128.00 72.96 17.42 72.00 41.04 53.55 0.00 0.00 100.00 0.00 0.00 100.00 155. 0 88.35 0.00 0.00 0.00 100.00 351.18 591.74 3.04 0.76 1972.68 10/4/19 4:45 PM 173.17 45,364.67 8.00 81.7 27.6 0.80 0.06 168 15 14 120.00 68.40 34.07 50.00 28.50 72.53 0.00 0.00 100.00 0.00 0.00 100.00 182. 0 103.74 0.00 0.00 0.00 100.00 413.72 697.13 6.37 0.88 1979.04 10/7/19 2:10 PM 69.42 45,434.09 8.00 99.3 37.4 0.70 0.05 175 15 14 98.00 55.86 36.77 65.00 37.05 58.06 2.50 1.43 98.39 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 341.25 57 5.01 2.11 0.73 1981.15 10/11/19 12:30 PM 94.33 45,528.42 8.00 76.5 24.7 0.80 0.06 173 15 15 115.00 65.55 28.13 65.00 37.05 59.38 4.00 2.28 97.50 0.00 0.00 100.00 160.0 91.20 0.00 0.00 0.00 100.00 367.24 618.80 3.20 0.82 1984.36 10/14/19 2:08 PM 73.63 45,602.05 8.00 85.1 29.5 0.80 0.06 175 15 15 110.00 62.70 29.03 75.00 42.75 51.61 8.00 4.56 94.84 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 350.15 590.00 2.36 0.77 1986.72 10/18/19 12:30 PM 94.37 45,696.42 8.00 71.4 21.9 0.80 0.06 169 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 125.0 71.25 0.00 0 .00 0.00 100.00 289.66 488.08 2.49 0.63 1989.21 10/21/19 4:00 PM 75.50 45,771.92 8.00 84.5 29.2 0.80 0.06 171 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 339.23 571.60 2.30 0.73 1991.51 10/25/19 1:10 PM 93.17 45,865.09 8.00 88.0 31.1 0.80 0.06 171 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 337.06 567.94 2.81 0.72 1994.32 10/28/19 11:30 AM 70.33 45,935.42 8.00 68.3 20.2 0.80 0.06 172 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 349.63 589.14 2.29 0.78 1996.61 11/1/19 3:23 PM 99.88 46,035.30 8.00 74.5 23.6 0.80 0.06 156 14 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 391.65 659.94 3.27 0.79 1999.89 11/4/19 2:02 PM 70.65 46,105.95 8.00 83.0 28.3 0.80 0.06 155 14 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 351.50 592.28 2.03 0.69 2001.92 11/8/19 3:19 PM 97.28 46,203.24 7.00 77.8 25.4 0.80 0.06 169 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 130.0 74.10 0.00 0 .00 0.00 100.00 297.66 501.56 2.60 0.64 2004.52 11/11/19 3:02 PM 71.72 46,274.95 7.20 79.3 26.3 0.80 0.06 173 15 15 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 154.0 87.78 0.00 0 .00 0.00 100.00 351.63 592.50 2.31 0.77 2006.83 11/15/19 12:23 PM 93.35 46,368.30 7.50 74.3 23.5 0.80 0.06 170 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0 .00 0.00 100.00 345.71 582.52 2.93 0.75 2009.77 11/18/19 2:45 PM 74.37 46,442.67 7.00 79.6 26.4 0.80 0.06 160 14 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0 .00 0.00 100.00 399.36 672.92 2.52 0.81 2012.29 11/22/19 1:33 PM 94.80 46,537.47 7.50 73.4 23.0 0.75 0.05 158 14 13 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 160.0 91.20 0.00 0 .00 0.00 100.00 369.38 622.40 2.97 0.75 2015.26 11/25/19 2:32 PM 72.98 46,610.45 7.20 64.5 18.1 0.70 0.05 158 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 195.0 111.15 0.00 0.00 0.00 100.00 457.82 771.43 2.88 0.95 2018.13 11/29/19 2:45 PM 96.22 46,706.67 7.80 53.2 11.8 0.70 0.05 176 15 16 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0 .00 0.00 100.00 371.93 626.70 3.51 0.88 2021.64 12/2/19 2:15 PM 71.50 46,778.17 7.40 68.5 20.3 0.80 0.06 163 14 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 165.0 94.05 0.00 0 .00 0.00 100.00 384.45 647.80 2.43 0.81 2024.07 12/6/19 2:45 PM 96.50 46,874.67 7.50 73.7 23.2 0.80 0.06 170 15 14 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0 .00 0.00 100.00 392.24 660.93 3.45 0.86 2027.52 12/10/19 12:34 PM 93.82 46,968.49 7.50 59.2 15.1 0.75 0.05 152 13 13 2.00 1.14 98.92 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 438.78 739 .34 3.45 0.88 2030.98 12/13/19 3:56 PM 75.37 47,043.85 7.20 66.7 19.3 0.75 0.05 166 14 14 8.00 4.56 95.43 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 175.0 99.75 0.00 0.00 0.00 100.00 409.15 689. 41 2.78 0.89 2033.76 12/16/19 1:39 PM 69.72 47,113.57 8.00 65.0 18.3 0.80 0.06 160 14 14 10.00 5.70 94.44 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 180.0 102.60 0.00 0.00 0.00 100.00 422.20 71 1.41 2.56 0.88 2036.32 12/20/19 11:00 AM 93.35 47,206.92 8.00 60.7 15.9 0.80 0.06 147 13 13 20.00 11.40 88.24 0.00 0.00 100.00 0 .00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 402.04 67 7.44 3.04 0.78 2039.36 ERM Page 13 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021
Table 7
Soil Vapor Extraction System Summary
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Time
Operated
(hr)
Cumulative
System
Runtime
(hr)
Pre Blower
Vacuum
(in. H20)
Chiller
Outlet
Temp
(°F)
Chiller
Outlet
Temp
(°C)
Post Blower
Pressure
(in H20) 3
Post Blower
Pressure
(psig)
Pre Blower
Velocity
(afpm)
Vacuum
Flow
(acfm)
System
(Vacuum)
Flow
(scfm)
Ves D
VOCs as
Methane
(ppmv) 1,2
Ves D
VOCs as
PCE
(ppmv) 4
Ves D
Control
Efficiency
(%)
Ves C
VOCs as
Methane
(ppmv)
Ves C
VOCs as
PCE
(ppmv)
Ves C
Control
Efficiency
(%)
Ves B
VOCs as
Methane
(ppmv)
Ves B
VOCs as
PCE
(ppmv)
Ves B
Control
Efficiency
(%)
Ves A
VOCs as
Methane
(ppmv)
Ves A
VOCs as
PCE
(ppmv)
Ves A
Control
Efficiency
(%)
Influent
VOCs as
Methane
(ppmv) 1,2
Influent
VOCs as
PCE
(ppmv) 4
Outdoor
Ambient
VOCs
(ppmv)
Effluent
VOCs as
Methane
(ppmv)
Effluent
VOCs as
PCE
(ppmv)
System
Control
Efficiency
(%)
VOCs as
Isobutylene
(mg/m3)
VOCs as
PCE
(mg/m3)
PCE Mass
Removed
(lb)
PCE Mass
Removal
Rate
(lb/day)
PCE Cumulative
Mass
Removed
(lb)
Date
System Operating Parameters GAC Monitoring VOC Data System VOC Concentration Data System VOC Concentration Data 12/23/19 2:15 PM 75.25 47,282.17 8.50 49.9 9.9 0.70 0.05 158 14 14 14.00 7.98 92.43 0.00 0.00 100.00 0.0 0 0.00 100.00 0.00 0.00 100.00 185.0 105.45 0.00 0.00 0.00 100.00 446.79 752 .84 2.99 0.95 2042.34 12/27/19 12:52 PM 94.62 47,376.79 12.00 59.8 15.4 0.70 0.05 122 11 11 22.00 12.54 85.81 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 155.0 88.35 0.00 0.00 0.00 100.00 367.20 6 18.74 2.32 0.59 2044.66 12/30/19 2:50 PM 73.97 47,450.75 10.00 54.0 12.2 0.70 0.05 114 10 10 29.00 16.53 82.94 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 170.0 96.90 0.00 0.00 0.00 100.00 407.28 6 86.28 1.90 0.62 2046.57 1/2/20 11:45 AM 68.92 47,519.67 12.00 57.0 13.9 0.70 0.05 126 11 11 32.00 18.24 78.67 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 357.28 6 02.02 1.72 0.60 2048.28 1/6/20 12:38 PM 96.88 47,616.55 12.00 57.4 14.1 0.80 0.06 127 11 11 35.00 19.95 79.65 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 172.0 98.04 0.00 0.00 0.00 100.00 409.37 6 89.78 2.78 0.69 2051.07 1/10/20 1:15 PM 96.62 47,713.17 12.00 61.8 16.6 0.70 0.05 111 10 10 43.00 24.51 62.61 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 115.0 65.55 0.00 0.00 0.00 100.00 271.39 4 57.30 1.59 0.39 2052.65 1/13/20 12:45 PM 71.50 47,784.67 12.00 61.9 16.6 0.70 0.05 113 10 10 45.00 25.65 59.82 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 112.0 63.84 0.00 0.00 0.00 100.00 264.26 4 45.29 1.17 0.39 2053.82 1/17/20 11:10 AM 94.42 47,879.09 12.00 57.9 14.4 0.70 0.05 108 9 9 42.00 23.94 23.64 0.00 0.00 100.00 0. 00 0.00 100.00 0.00 0.00 100.00 55.0 31.35 0.00 0.00 0.00 100.00 130.78 220. 36 0.74 0.19 2054.56 1/24/20 12:02 PM 168.87 48,047.95 12.00 64.1 17.8 0.70 0.05 123 11 11 65.00 37.05 24.42 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 86.0 49.02 0.00 0.00 0.00 100.00 202.06 34 0.48 2.29 0.33 2056.85 1/27/20 2:18 PM 74.27 48,122.22 14.00 64.9 18.3 0.80 0.06 120 10 10 62.00 35.34 32.61 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 92.0 52.44 0.00 0.00 0.00 100.00 215.83 36 3.68 1.05 0.34 2057.90 3/3/21 2:30 PM 0.00 48,122.22 7.10 66.1 18.9 0.80 0.06 544 47 47 1.00 0.57 100.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 100.00 1.0 0.57 0.00 0.00 0.00 100.00 2.34 3.94 0.00 0.00 2057.90 3/8/21 10:54 AM 116.40 48,238.62 7.20 66.5 19.2 0.60 0.04 224 20 19 25.00 14.25 77.27 5.00 2.85 95.45 3. 00 1.71 97.27 4.00 2.28 96.36 110.0 62.70 0.00 4.00 2.28 96.36 257.28 433.51 3.65 0.75 2061.55 3/17/21 10:00 AM 215.10 48,453.72 7.00 65.8 18.8 0.78 0.06 221 19 19 55.00 31.35 60.71 0.00 0.00 100.00 0 .00 0.00 100.00 2.00 1.14 98.57 140.0 79.80 0.00 2.00 1.14 98.57 327.88 552. 48 8.47 0.94 2070.01 3/24/21 9:41 AM 167.68 48,621.40 20.00 72.9 22.7 0.90 0.07 308 27 26 105.00 59.85 19.23 20.00 11.40 84.62 0.00 0.00 100.00 2.00 1.14 98.46 130.0 74.10 0.00 2.00 1.14 98.46 300.40 506.17 8.33 1.19 2078.34 4/1/21 8:35 AM 190.90 48,812.30 6.50 84.3 29.1 0.70 0.05 348 30 29 35.00 19.95 76.67 23.00 13.11 84.67 0.00 0.00 100.00 0.00 0.00 100.00 150.0 85.50 0.00 0.00 0.00 100.00 339.35 5 71.81 11.85 1.49 2090.19 4/6/21 8:00 AM 119.42 48,931.72 20.00 71.5 21.9 1.50 0.11 446 39 38 73.00 41.61 64.39 34.00 19.38 83.4 1 0.00 0.00 100.00 0.00 0.00 100.00 205.0 116.85 0.00 0.00 0.00 100.00 474.9 6 800.30 13.67 2.75 2103.85 4/15/21 9:00 AM 217.00 49,148.72 25.00 74.0 23.3 2.00 0.15 578 50 49 115.00 65.55 17.86 85.00 48.45 39.29 80.00 45.60 42.86 4.00 2.28 97.14 140. 0 79.80 0.00 4.00 2.28 97.14 322.84 543.99 21.83 2.41 2125.68 4/21/21 11:00 AM 146.00 49,294.72 25.00 91.5 33.1 2.50 0.18 502 44 42 86.00 49.02 21.82 75.00 42.75 31.8 2 62.00 35.34 43.64 20.00 11.40 81.82 110.0 62.70 0.00 20.00 11.40 81.82 245 .61 413.85 9.42 1.55 2135.10 4/28/21 11:00 AM 168.00 49,462.72 22.00 79.6 26.4 2.30 0.17 433 38 37 145.00 82.65 12.12 132.00 75.24 20.00 125.00 71.25 24.24 69.00 39.33 58.18 165.0 94.05 0.00 69.00 39.33 58.18 376.54 634.47 14.63 2.09 2149.73 5/6/21 11:35 AM 192.58 49,655.30 25.00 79.2 26.2 2.00 0.15 558 49 47 155.00 88.35 17.99 145.00 82.65 23.28 155.00 88.35 17.99 145.00 82.65 23.2 8 189.0 107.73 0.00 145.00 82.65 23.28 431.63 727.30 24.76 3.09 2174.49 Notes:
-- = No data collected, not applicable psig = Pounds per square inch gauge ** = System down; measurements are not representative of actual conditions. scfm = Standard cubic feet per minute Historical data verified by others prior to ERM taking ownership January 2014. Ves = Vessel Horizontal lines separating measurements indicate system shutdown periods. VOC = Volatile organic compound

1. Photoionization detector is calibrated to 100 ppm isobutylene.

2. Isobutylene conversion factor to methane on photoionization detector is 1 to 1

3. Conversion factor: 1 in. H
2 O = 13.70 psig

4. Methane concentration factor to PCE is 0.57.

5. In March 2021, a miscalculation was discovered affecting mass removal data, the data presented represents the corrected data.

AFPM to ACFM Equation:

System (vacuum side) Flowrate Equation:

𝑆𝐶𝐹𝑀 ൌ𝐴𝐶𝐹𝑀 ሺ
ሺீ௔௦ ௉௥௘௦௦௨௥௘ ௣௦௜௔ ାଵସ.଻ሻ
ଵସ.଻ ) (
ହଵଽ
ீ௔௦ ்௘௠௣௘௥௔௧௨௥௘ ሺோሻ ሻ
𝐴𝐶𝐹𝑀 ൌ𝐴𝐹𝑃𝑀 ∗ π𝑟ଶ
ERM Page 14 of 14 UNIVAR SOLUTIONS/0577677 - 7/9/2021

APPENDIX A HISTORICAL GROUNDWATER ELEVATION DATA

Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
BIO-01 09/10/2008 287.39 -- -- 104.00 183.39
BIO-01 12/02/2008 287.39 -- -- -- --
BIO-01 09/08/2009 287.39 -- -- -- --
BIO-01 06/20/2011 287.39 -- -- 100.44 186.95
BIO-01 10/17/2011 287.39 -- -- 102.29 185.10
BIO-01 06/18/2012 287.39 -- -- 99.72 187.67
BIO-01 11/26/2012 287.39 -- -- 102.40 184.99
BIO-01 06/24/2013 287.39 -- -- 103.84 183.55
BIO-01 11/18/2013 287.39 104.34* -- 104.10 183.29
BIO-01 05/12/2014 287.39 104.34* -- 104.10 183.29
BIO-01 11/10/2014 287.39 104.34* -- 104.00 183.39
BIO-01 06/22/2015 287.41 104.34* -- 104.00 183.41
BIO-01 09/08/2015 287.41 104.34* -- 103.96 183.45
BIO-01 11/16/2015 287.41 104.34* -- Dry --
BIO-01 02/15/2016 287.41 104.34* -- 103.92 183.49
BIO-01 05/09/2016 287.41 104.34* -- 103.98 183.43
BIO-01 08/22/2016 287.41 104.34* -- 103.92 183.49
BIO-01 11/28/2016 287.41 104.34* -- 103.90 183.51
BIO-01 03/06/2017 287.41 104.34* -- 103.96 183.45
BIO-01 05/22/2017 287.41 104.34* -- Dry --
BIO-01 06/19/2017 287.41 104.34* -- Dry --
BIO-01 08/28/2017 287.41 104.34* -- Dry --
BIO-01 12/11/2017 287.41 104.34* -- 103.99 183.42
BIO-01 02/12/2018 287.41 104.34* -- 103.97 183.44
BIO-01 05/21/2018 287.41 104.34* -- 104.02 183.39
BIO-01 07/30/2018 287.41 104.34* -- Dry --
BIO-01 10/16/2018 288.41 104.34* -- 103.97 183.44
BIO-01 01/07/2019 288.41 104.34* -- 102.67 184.74
BIO-01 04/22/2019 288.41 104.34* -- 100.84 186.57
BIO-01 07/15/2019 288.41 104.34* -- 100.36 187.05
BIO-01 11/04/2019 287.41 104.34* -- 99.54 187.87
BIO-01 06/15/2020 287.41 104.34* -- 97.60 189.81
IW-01 04/21/2015 288.21 128 103-128 110.00 178.21
IW-01 06/22/2015 288.21 128 103-128 109.30 178.91
IW-01 09/08/2015 288.21 128 103-128 109.89 178.32
IW-01 11/16/2015 288.21 128 103-128 110.45 177.76
IW-01 02/15/2016 288.21 128 103-128 109.75 178.46
IW-01 05/09/2016 288.21 128 103-128 109.37 178.84
IW-01 08/22/2016 288.21 128 103-128 109.70 178.51
IW-01 11/28/2016 288.21 128 103-128 108.39 179.82
IW-01 03/06/2017 288.21 128 103-128 107.30 180.91
IW-01 05/22/2017 288.21 128 103-128 106.64 181.57
IW-01 06/19/2017 288.21 128 103-128 107.30 180.91
Well Date
ERM 1 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
IW-01 08/28/2017 288.21 128 103-128 107.53 180.68
IW-01 12/11/2017 288.21 128 103-128 107.48 180.73
IW-01 02/12/2018 288.21 128 103-128 106.40 181.81
IW-01 05/21/2018 288.21 128 103-128 105.98 182.23
IW-01 07/30/2018 288.21 128 103-128 105.75 182.46
IW-01 10/16/2018 288.21 128 103-128 104.91 183.30
IW-01 01/07/2019 288.21 128 103-128 103.89 184.32
IW-01 04/22/2019 288.21 128 103-128 101.74 186.47
IW-01 07/15/2019 288.21 128 103-128 101.25 186.96
IW-01 11/04/2019 288.21 128 103-129 100.40 187.81
IW-01 06/15/2020 288.21 128 103-129 98.44 189.77
IW-01 11/09/2020 288.21 128 103-129 98.30 189.91
IW-01 04/05/2021 288.21 128 103-129 97.33 190.88
IW-02 06/22/2015 287.39 131 102.5-127.5 108.52 178.87
IW-02 09/08/2015 287.39 131 102.5-127.5 109.10 178.29
IW-02 11/16/2015 287.39 131 102.5-127.5 109.61 177.78
IW-02 02/15/2016 287.39 131 102.5-127.5 109.00 178.39
IW-02 05/09/2016 287.39 131 102.5-127.5 108.61 178.78
IW-02 08/22/2016 287.39 131 102.5-127.5 108.81 178.58
IW-02 11/28/2016 287.39 131 102.5-127.5 107.60 179.79
IW-02 03/06/2017 287.39 131 102.5-127.5 106.52 180.87
IW-02 05/22/2017 287.39 131 102.5-127.5 105.89 181.50
IW-02 06/19/2017 287.39 131 102.5-127.5 106.50 180.89
IW-02 08/28/2017 287.39 131 102.5-127.5 106.71 180.68
IW-02 12/11/2017 287.39 131 102.5-127.5 106.64 180.75
IW-02 02/12/2018 287.39 131 102.5-127.5 105.63 181.76
IW-02 05/21/2018 287.39 131 102.5-127.5 105.20 182.19
IW-02 07/30/2018 287.39 131 102.5-127.5 104.94 182.45
IW-02 10/16/2018 287.39 131 102.5-127.5 104.10 183.29
IW-02 01/07/2019 287.39 131 102.5-127.5 102.84 184.55
IW-02 04/22/2019 287.39 131 102.5-127.5 100.94 186.45
IW-02 07/15/2019 287.39 131 102.5-127.5 100.48 186.91
IW-02 11/04/2019 287.39 131 102.5-127.6 99.61 187.78
IW-02 06/15/2020 287.39 131 102.5-127.6 97.62 189.77
IW-02 11/09/2020 287.39 131 102.5-127.6 97.50 189.89
IW-02 04/05/2021 287.39 131 102.5-127.6 96.59 190.80
IW-03 04/21/2015 287.48 140 105-140 109.32 178.16
IW-03 06/22/2015 287.48 140 105-140 108.53 178.95
IW-03 09/08/2015 287.48 140 105-140 109.18 178.30
IW-03 11/16/2015 287.48 140 105-140 109.65 177.83
IW-03 02/15/2016 287.48 140 105-140 109.06 178.42
IW-03 05/09/2016 287.48 140 105-140 108.69 178.79
IW-03 08/22/2016 287.48 140 105-140 109.00 178.48
ERM 2 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
IW-03 11/28/2016 287.48 140 105-140 107.69 179.79
IW-03 03/06/2017 287.48 140 105-140 106.50 180.98
IW-03 05/22/2017 287.48 140 105-140 105.96 181.52
IW-03 06/19/2017 287.48 140 105-140 106.62 180.86
IW-03 08/28/2017 287.48 140 105-140 106.85 180.63
IW-03 12/11/2017 287.48 140 105-140 106.76 180.72
IW-03 02/12/2018 287.48 140 105-140 105.72 181.76
IW-03 05/21/2018 287.48 140 105-140 105.31 182.17
IW-03 07/30/2018 287.48 140 105-140 105.01 182.47
IW-03 10/16/2018 287.48 140 105-140 104.17 183.31
IW-03 01/07/2019 287.48 140 105-140 102.91 184.57
IW-03 04/22/2019 287.48 140 105-140 100.97 186.51
IW-03 07/15/2019 287.48 140 105-140 100.48 187.00
IW-03 11/04/2019 287.48 140 105-141 99.64 187.84
IW-03 06/15/2020 287.48 140 105-141 97.68 189.80
IW-03 11/09/2020 287.48 140 105-141 97.56 189.92
IW-03 04/05/2021 287.48 140 105-141 96.65 190.83
IW-04 06/22/2015 287.33 140 105-140 108.40 178.93
IW-04 09/08/2015 287.33 140 105-140 109.00 178.33
IW-04 11/16/2015 287.33 140 105-140 109.47 177.86
IW-04 02/15/2016 287.33 140 105-140 108.94 178.39
IW-04 05/09/2016 287.33 140 105-140 108.52 178.81
IW-04 08/22/2016 287.33 140 105-140 108.85 178.48
IW-04 11/28/2016 287.33 140 105-140 107.51 179.82
IW-04 03/06/2017 287.33 140 105-140 106.48 180.85
IW-04 05/22/2017 287.33 140 105-140 105.84 181.49
IW-04 06/19/2017 287.33 140 105-140 106.52 180.81
IW-04 08/28/2017 287.33 140 105-140 106.69 180.64
IW-04 12/11/2017 287.33 140 105-140 106.63 180.70
IW-04 02/12/2018 287.33 140 105-140 105.82 181.51
IW-04 05/21/2018 287.33 140 105-140 105.02 182.31
IW-04 07/30/2018 287.33 140 105-140 104.87 182.46
IW-04 10/16/2018 287.33 140 105-140 104.05 183.28
IW-04 01/07/2019 287.33 140 105-140 102.82 184.51
IW-04 04/22/2019 287.33 140 105-140 100.89 186.44
IW-04 07/15/2019 287.33 140 105-140 100.38 186.95
IW-04 11/04/2019 287.33 140 105-141 99.52 187.81
IW-04 06/15/2020 287.33 140 105-141 97.55 189.78
IW-04 11/09/2020 287.33 140 105-141 97.45 189.88
IW-04 04/05/2021 287.33 140 105-141 96.51 190.82
IW-05 04/21/2015 287.30 139.5 104.5-139.5 109.22 178.08 IW-05 06/22/2015 287.30 139.5 104.5-139.5 108.42 178.88 IW-05 09/08/2015 287.30 139.5 104.5-139.5 109.05 178.25 ERM 3 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
IW-05 11/16/2015 287.30 139.5 104.5-139.5 109.49 177.81 IW-05 02/15/2016 287.30 139.5 104.5-139.5 109.32 177.98 IW-05 05/09/2016 287.30 139.5 104.5-139.5 108.53 178.77 IW-05 08/22/2016 287.30 139.5 104.5-139.5 108.81 178.49 IW-05 11/28/2016 287.30 139.5 104.5-139.5 107.50 179.80 IW-05 03/06/2017 287.30 139.5 104.5-139.5 106.48 180.82 IW-05 05/22/2017 287.30 139.5 104.5-139.5 105.87 181.43 IW-05 06/19/2017 287.30 139.5 104.5-139.5 106.48 180.82 IW-05 08/28/2017 287.30 139.5 104.5-139.5 106.66 180.64 IW-05 12/11/2017 287.30 139.5 104.5-139.5 106.61 180.69 IW-05 02/12/2018 287.30 139.5 104.5-139.5 105.59 181.71 IW-05 05/21/2018 287.30 139.5 104.5-139.5 105.02 182.28 IW-05 07/30/2018 287.30 139.5 104.5-139.5 104.81 182.49 IW-05 10/16/2018 287.30 139.5 104.5-139.5 104.01 183.29 IW-05 01/07/2019 287.30 139.5 104.5-139.5 102.77 184.53 IW-05 04/22/2019 287.30 139.5 104.5-139.5 100.85 186.45 IW-05 07/15/2019 287.30 139.5 104.5-139.5 100.31 186.99 IW-05 11/04/2019 287.30 139.5 104.5-139.6 99.46 187.84
IW-05 06/15/2020 287.30 139.5 104.5-139.6 97.51 189.79
IW-05 11/09/2020 287.30 139.5 104.5-139.6 97.41 189.89
IW-05 04/05/2021 287.30 139.5 104.5-139.6 96.48 190.82
IW-06 04/21/2015 287.51 140 105-140 109.51 178.00
IW-06 06/22/2015 287.51 140 105-140 108.40 179.11
IW-06 09/08/2015 287.51 140 105-140 109.30 178.21
IW-06 11/16/2015 287.51 140 105-140 109.77 177.74
IW-06 02/15/2016 287.51 140 105-140 109.20 178.31
IW-06 05/09/2016 287.51 140 105-140 108.79 178.72
IW-06 08/22/2016 287.51 140 105-140 109.12 178.39
IW-06 11/28/2016 287.51 140 105-140 107.75 179.76
IW-06 03/06/2017 287.51 140 105-140 106.75 180.76
IW-06 05/22/2017 287.51 140 105-140 106.10 181.41
IW-06 06/19/2017 287.51 140 105-140 106.78 180.73
IW-06 08/28/2017 287.51 140 105-140 106.95 180.56
IW-06 12/11/2017 287.51 140 105-140 106.89 180.62
IW-06 02/12/2018 287.51 140 105-140 105.87 181.64
IW-06 05/21/2018 287.51 140 105-140 105.25 182.26
IW-06 07/30/2018 287.51 140 105-140 105.07 182.44
IW-06 10/16/2018 287.51 140 105-140 104.22 183.29
IW-06 01/07/2019 287.51 140 105-140 103.12 184.39
IW-06 04/22/2019 287.51 140 105-140 101.18 186.33
IW-06 07/15/2019 287.51 140 105-140 100.62 186.89
IW-06 11/04/2019 287.51 140 105-140 99.73 187.78
IW-06 06/15/2020 287.51 140 105-140 97.76 189.75
ERM 4 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
IW-06 11/09/2020 287.51 140 105-140 97.66 189.85
IW-06 04/05/2021 287.51 140 105-140 96.75 190.76
IW-07 04/21/2015 287.14 140 105-140 109.19 177.95
IW-07 06/22/2015 287.14 140 105-140 108.35 178.79
IW-07 09/08/2015 287.14 140 105-140 108.92 178.22
IW-07 11/16/2015 287.14 140 105-140 109.41 177.73
IW-07 02/15/2016 287.14 140 105-140 108.84 178.30
IW-07 05/09/2016 287.14 140 105-140 108.43 178.71
IW-07 08/22/2016 287.14 140 105-140 109.42 177.72
IW-07 11/28/2016 287.14 140 105-140 107.40 179.74
IW-07 03/06/2017 287.14 140 105-140 106.37 180.77
IW-07 05/22/2017 287.14 140 105-140 105.78 181.36
IW-07 06/19/2017 287.14 140 105-140 106.42 180.72
IW-07 08/28/2017 287.14 140 105-140 106.56 180.58
IW-07 12/11/2017 287.14 140 105-140 106.54 180.60
IW-07 02/12/2018 287.14 140 105-140 105.50 181.64
IW-07 05/21/2018 287.14 140 105-140 104.80 182.34
IW-07 07/30/2018 287.14 140 105-140 104.71 182.43
IW-07 10/16/2018 287.14 140 105-140 103.90 183.24
IW-07 01/07/2019 287.14 140 105-140 102.52 184.62
IW-07 04/22/2019 287.14 140 105-140 100.77 186.37
IW-07 07/15/2019 287.14 140 105-140 100.22 186.92
IW-07 11/04/2019 287.14 140 105-140 99.53 187.61
IW-07 06/15/2020 287.14 140 105-140 97.38 189.76
IW-07 11/09/2020 287.14 140 105-140 97.28 189.86
IW-07 04/05/2021 287.14 140 105-140 96.37 190.77
IW-08 04/21/2015 287.40 140 105-140 109.50 177.90
IW-08 06/22/2015 287.40 140 105-140 108.61 178.79
IW-08 09/08/2015 287.40 140 105-140 109.15 178.25
IW-08 11/16/2015 287.40 140 105-140 109.65 177.75
IW-08 02/15/2016 287.40 140 105-140 109.84 177.56
IW-08 05/09/2016 287.40 140 105-140 108.70 178.70
IW-08 08/22/2016 287.40 140 105-140 109.08 178.32
IW-08 11/28/2016 287.40 140 105-140 107.68 179.72
IW-08 03/06/2017 287.40 140 105-140 106.61 180.79
IW-08 05/22/2017 287.40 140 105-140 106.01 181.39
IW-08 06/19/2017 287.40 140 105-140 106.69 180.71
IW-08 08/28/2017 287.40 140 105-140 106.81 180.59
IW-08 12/11/2017 287.40 140 105-140 106.78 180.62
IW-08 02/12/2018 287.40 140 105-140 105.76 181.64
IW-08 05/21/2018 287.40 140 105-140 105.12 182.28
IW-08 07/30/2018 287.40 140 105-140 104.94 182.46
IW-08 10/16/2018 287.40 140 105-140 104.12 183.28
ERM 5 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
IW-08 01/07/2019 287.40 140 105-140 102.96 184.44
IW-08 04/22/2019 287.40 140 105-140 101.14 186.26
IW-08 07/15/2019 287.40 140 105-140 100.49 186.91
IW-08 11/04/2019 287.40 140 105-140 99.62 187.78
IW-08 06/15/2020 287.40 140 105-140 97.66 189.74
IW-08 11/09/2020 287.40 140 105-140 97.59 189.81
IW-08 04/05/2021 287.40 140 105-140 96.69 190.71
MW-01 09/03/1996 287.45 106 86-106 91.15 196.30
MW-01 12/17/1997 287.45 106 86-106 86.67 200.78
MW-01 03/20/1998 287.45 106 86-106 84.21 203.24
MW-01 06/22/1998 287.45 106 86-106 84.75 202.70
MW-01 09/23/1998 287.45 106 86-106 88.69 198.76
MW-01 12/30/1998 287.45 106 86-106 84.86 202.59
MW-01 03/27/1999 287.45 106 86-106 84.76 202.69
MW-01 06/25/1999 287.45 106 86-106 88.01 199.44
MW-01 09/20/1999 287.45 106 86-106 92.02 195.43
MW-01 12/17/1999 287.45 106 86-106 86.17 201.28
MW-01 03/29/2000 287.45 106 86-106 82.12 205.33
MW-01 05/25/2000 287.45 106 86-106 83.44 204.01
MW-01 09/25/2000 287.45 106 86-106 90.25 197.20
MW-01 12/07/2000 287.45 106 86-106 88.65 198.80
MW-01 02/27/2001 287.45 106 86-106 83.69 203.76
MW-01 05/10/2001 287.45 106 86-106 83.12 204.33
MW-01 09/18/2001 287.45 106 86-106 89.57 197.88
MW-01 11/08/2001 287.45 106 86-106 92.27 195.18
MW-01 03/04/2002 287.45 106 86-106 86.26 201.19
MW-01 05/31/2002 287.45 106 86-106 87.65 199.80
MW-01 10/01/2002 287.45 106 86-106 93.20 194.25
MW-01 11/19/2002 287.45 106 86-106 92.75 194.70
MW-01 02/27/2003 287.45 106 86-106 91.82 195.63
MW-01 06/06/2003 287.45 106 86-106 93.22 194.23
MW-01 08/21/2003 287.45 106 86-106 96.69 190.76
MW-01 12/31/2003 287.45 106 86-106 96.23 191.22
MW-01 02/05/2004 287.45 106 86-106 94.90 192.55
MW-01 03/17/2004 287.45 106 86-106 95.51 191.94
MW-01 05/19/2004 287.45 106 86-106 96.63 190.82
MW-01 08/26/2004 287.45 106 86-106 98.07 189.38
MW-01 11/17/2004 287.45 106 86-106 95.88 191.57
MW-01 05/12/2005 287.45 106 86-106 92.12 195.33
MW-01 08/03/2005 287.45 106 86-106 98.98 188.47
MW-01 11/22/2005 287.45 106 86-106 98.04 189.41
MW-01 06/05/2006 287.45 106 86-106 96.17 191.28
MW-01 11/06/2006 287.45 106 86-106 101.65 185.80
ERM 6 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-01 05/23/2007 287.45 106 86-106 102.00 185.45
MW-01 11/28/2007 287.45 106 86-106 -- --
MW-01 06/09/2008 287.45 106 86-106 -- --
MW-01 09/10/2008 287.45 106 86-106 -- --
MW-01 12/02/2008 287.45 106 86-106 -- --
MW-01 09/08/2009 287.45 106 86-106 -- --
MW-01 06/28/2010 287.45 106 86-106 103.90 183.55
MW-01 12/13/2010 287.45 106 86-106 -- --
MW-01 06/20/2011 287.45 106 86-106 100.52 186.93
MW-01 12/08/2011 287.45 106 86-106 101.40 186.05
MW-01 06/18/2012 287.45 106 86-106 99.75 187.70
MW-01 11/26/2012 287.45 106 86-106 102.52 184.93
MW-01 06/24/2013 287.45 106 86-106 104.16 183.29
MW-01 11/18/2013 287.45 106 86-106 104.35 183.10
MW-01 05/12/2014 287.45 106 86-106 104.32 183.13
MW-01 11/10/2014 287.45 106 86-106 104.30 183.15
MW-01 06/22/2015 287.42 106 86-106 -- --
MW-01 09/08/2015 287.42 106 86-106 -- --
MW-01 11/16/2015 287.42 106 86-106 Dry --
MW-01 02/15/2016 287.42 106 86-106 104.29 183.13
MW-01 05/09/2016 287.42 106 86-106 Dry --
MW-01 08/22/2016 287.42 106 86-106 Dry --
MW-01 11/28/2016 287.42 106 86-106 Dry --
MW-01 03/06/2017 287.42 106 86-106 Dry --
MW-01 05/22/2017 287.42 106 86-106 Dry --
MW-01 06/19/2017 287.42 106 86-106 Dry --
MW-01 08/28/2017 287.42 106 86-106 Dry --
MW-01 12/11/2017 287.42 106 86-106 Dry --
MW-01 02/12/2018 287.42 106 86-106 104.34 183.08
MW-01 05/21/2018 287.42 106 86-106 108.36 179.06
MW-01 07/30/2018 287.42 106 86-106 Dry --
MW-01 10/16/2018 287.42 106 86-106 104.21 183.21
MW-01 01/07/2019 287.42 106 86-106 102.81 184.61
MW-01 04/22/2019 287.42 106 86-106 100.90 186.52
MW-01 07/15/2019 287.42 106 86-106 100.45 186.97
MW-01 11/04/2019 287.42 106 86-106 99.62 187.80
MW-01 06/15/2020 287.42 106 86-106 97.75 189.67
MW-01D 12/13/2010 287.55 195 176-186 103.50 184.05
MW-01D 06/20/2011 287.55 195 176-186 100.64 186.91
MW-01D 10/17/2011 287.55 195 176-186 102.12 185.43
MW-01D 06/18/2012 287.55 195 176-186 100.20 187.35
MW-01D 11/26/2012 287.55 195 176-186 102.70 184.85
MW-01D 06/24/2013 287.55 195 176-186 104.40 183.15
ERM 7 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-01D 11/18/2013 287.55 195 176-186 106.50 181.05
MW-01D 05/12/2014 287.55 195 176-186 106.87 180.68
MW-01D 11/10/2014 287.55 195 176-186 107.81 179.74
MW-01D 06/22/2015 287.48 195 176-186 108.64 178.84
MW-01D 09/08/2015 287.48 195 176-186 108.95 178.53
MW-01D 11/16/2015 287.48 195 176-186 109.37 178.11
MW-01D 02/15/2016 287.48 195 176-186 109.38 178.10
MW-01D 05/09/2016 287.48 195 176-186 108.96 178.52
MW-01D 08/22/2016 287.48 195 176-186 109.09 178.39
MW-01D 11/28/2016 287.48 195 176-186 107.87 179.61
MW-01D 03/06/2017 287.48 195 176-186 106.51 180.97
MW-01D 05/22/2017 287.48 195 176-186 105.83 181.65
MW-01D 06/19/2017 287.48 195 176-186 106.57 180.91
MW-01D 08/28/2017 287.48 195 176-186 106.69 180.79
MW-01D 12/11/2017 287.48 195 176-186 106.66 180.82
MW-01D 02/12/2018 287.48 195 176-186 105.45 182.03
MW-01D 05/21/2018 287.48 195 176-186 105.24 182.24
MW-01D 07/30/2018 287.48 195 176-186 104.97 182.51
MW-01D 10/16/2018 287.48 195 176-186 104.24 183.24
MW-01D 01/07/2019 287.48 195 176-186 102.84 184.64
MW-01D 04/22/2019 287.48 195 176-186 100.97 186.51
MW-01D 07/15/2019 287.48 195 176-186 100.52 186.96
MW-01D 11/04/2019 287.48 195 176-186 99.69 187.79
MW-01D 06/15/2020 287.48 195 176-186 97.74 189.74
MW-02 12/17/1997 286.26 105 85-105 85.41 200.85
MW-02 03/20/1998 286.26 106 85-105 82.98 203.28
MW-02 06/22/1998 286.26 107 85-105 82.20 204.06
MW-02 09/23/1998 286.26 108 85-105 87.50 198.76
MW-02 12/30/1998 286.26 109 85-105 83.48 202.78
MW-02 03/27/1999 286.26 110 85-105 83.42 202.84
MW-02 06/25/1999 286.26 111 85-105 86.80 199.46
MW-02 09/20/1999 286.26 112 85-105 90.86 195.40
MW-02 12/17/1999 286.26 113 85-105 84.12 202.14
MW-02 03/29/2000 286.26 114 85-105 80.88 205.38
MW-02 05/25/2000 286.26 115 85-105 82.12 204.14
MW-02 09/25/2000 286.26 116 85-105 89.14 197.12
MW-02 12/07/2000 286.26 117 85-105 87.49 198.77
MW-02 02/27/2001 286.26 118 85-105 82.46 203.80
MW-02 05/10/2001 286.26 119 85-105 81.92 204.34
MW-02 09/18/2001 286.26 120 85-105 88.27 197.99
MW-02 11/08/2001 286.26 121 85-105 91.13 195.13
MW-02 03/04/2002 286.26 122 85-105 85.01 201.25
MW-02 03/11/2002 286.26 123 85-105 -- --
ERM 8 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-02 05/31/2002 286.26 124 85-105 86.51 199.75
MW-02 10/01/2002 286.26 125 85-105 92.00 194.26
MW-02 11/19/2002 286.26 126 85-105 91.60 194.66
MW-02 02/27/2003 286.26 127 85-105 91.72 194.54
MW-02 06/06/2003 286.26 128 85-105 92.14 194.12
MW-02 08/21/2003 286.26 129 85-105 95.53 190.73
MW-02 12/31/2003 286.26 130 85-105 95.00 191.26
MW-02 02/05/2004 286.26 131 85-105 93.61 192.65
MW-02 03/17/2004 286.26 132 85-105 94.44 191.82
MW-02 05/19/2004 286.26 133 85-105 95.43 190.83
MW-02 08/26/2004 286.26 134 85-105 96.81 189.45
MW-02 11/17/2004 286.26 135 85-105 94.82 191.44
MW-02 05/12/2005 286.26 136 85-105 96.41 189.85
MW-02 08/03/2005 286.26 137 85-105 97.32 188.94
MW-02 11/22/2005 286.26 138 85-105 96.71 189.55
MW-02 06/05/2006 286.26 139 85-105 94.99 191.27
MW-02 11/06/2006 286.26 140 85-105 -- --
MW-02 05/23/2007 286.26 141 85-105 -- --
MW-02 11/28/2007 286.26 142 85-105 -- --
MW-02 06/09/2008 286.26 143 85-105 -- --
MW-02 09/10/2008 286.26 144 85-105 -- --
MW-02 12/02/2008 286.26 145 85-105 -- --
MW-02 09/08/2009 286.26 146 85-105 -- --
MW-02 06/28/2010 286.26 147 85-105 -- --
MW-02 12/13/2010 286.26 148 85-105 -- --
MW-02 06/20/2011 286.26 149 85-105 -- --
MW-02 12/08/2011 286.26 150 85-105 -- --
MW-02 06/18/2012 286.26 151 85-105 -- --
MW-02 11/26/2012 286.26 152 85-105 -- --
MW-02 06/24/2013 286.26 153 85-105 -- --
MW-02 11/18/2013 286.26 153 85-105 Dry --
MW-02 05/12/2014 286.26 153 85-105 Dry --
MW-02 11/10/2014 286.26 153 85-105 98.48 187.78
MW-02 06/22/2015 286.24 153 85-105 -- --
MW-02 09/08/2015 286.24 153 85-105 -- --
MW-02 11/16/2015 286.24 153 85-105 Dry --
MW-02 02/15/2016 286.24 153 85-105 Dry --
MW-02 05/09/2016 286.24 153 85-105 Dry --
MW-02 08/22/2016 286.24 153 85-105 Dry --
MW-02 11/28/2016 286.24 153 85-105 Dry --
MW-02 03/06/2017 286.24 153 85-105 Dry --
MW-02 05/22/2017 286.24 153 85-105 Dry --
MW-02 06/19/2017 286.24 153 85-105 Dry --
ERM 9 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-02 08/28/2017 286.24 153 85-105 Dry --
MW-02 12/11/2017 286.24 153 85-105 Dry --
MW-02 02/12/2018 286.24 153 85-105 98.32 187.92
MW-02 05/21/2018 286.24 153 85-105 103.23 183.01
MW-02 07/30/2018 286.24 153 85-105 Dry --
MW-02 10/16/2018 286.24 153 85-105 Dry --
MW-02 01/07/2019 286.24 153 85-105 Dry --
MW-02 04/22/2019 286.24 153 85-105 98.43 187.81
MW-02 07/15/2019 286.24 153 85-105 98.43 187.81
MW-02 11/04/2019 286.24 153 85-105 98.42 187.82
MW-02 06/15/2020 286.24 153 85-105 96.51 189.73
MW-02 11/09/2020 286.24 153 85-105 96.48 189.76
MW-02 04/05/2021 286.24 153 85-105 95.52 190.72
MW-03 09/03/1996 288.43 107 87-107 91.92 196.51
MW-03 12/17/1997 288.43 107 87-107 87.51 200.92
MW-03 03/20/1998 288.43 107 87-107 84.97 203.46
MW-03 06/22/1998 288.43 107 87-107 84.28 204.15
MW-03 09/23/1998 288.43 107 87-107 89.35 199.08
MW-03 12/30/1998 288.43 107 87-107 85.50 202.93
MW-03 03/27/1999 288.43 107 87-107 85.45 202.98
MW-03 06/25/1999 288.43 107 87-107 88.50 199.93
MW-03 09/20/1999 288.43 107 87-107 92.52 195.91
MW-03 12/17/1999 288.43 107 87-107 85.45 202.98
MW-03 03/29/2000 288.43 107 87-107 82.86 205.57
MW-03 05/25/2000 288.43 107 87-107 84.10 204.33
MW-03 09/25/2000 288.43 107 87-107 90.83 197.60
MW-03 12/07/2000 288.43 107 87-107 89.12 199.31
MW-03 02/27/2001 288.43 107 87-107 84.25 204.18
MW-03 05/10/2001 288.43 107 87-107 83.93 204.50
MW-03 09/18/2001 288.43 107 87-107 90.29 198.14
MW-03 11/08/2001 288.43 107 87-107 92.93 195.50
MW-03 03/04/2002 288.43 107 87-107 87.15 201.28
MW-03 05/31/2002 288.43 107 87-107 88.43 200.00
MW-03 10/01/2002 288.43 107 87-107 94.00 194.43
MW-03 11/19/2002 288.43 107 87-107 93.30 195.13
MW-03 02/27/2003 288.43 107 87-107 90.68 197.75
MW-03 06/06/2003 288.43 107 87-107 93.18 195.25
MW-03 08/21/2003 288.43 107 87-107 97.46 190.97
MW-03 12/31/2003 288.43 107 87-107 96.91 191.52
MW-03 02/05/2004 288.43 107 87-107 95.55 192.88
MW-03 03/17/2004 288.43 107 87-107 96.19 192.24
MW-03 05/19/2004 288.43 107 87-107 97.32 191.11
MW-03 08/26/2004 288.43 107 87-107 99.03 189.40
ERM 10 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-03 11/17/2004 288.43 107 87-107 96.64 191.79
MW-03 05/12/2005 288.43 107 87-107 93.24 195.19
MW-03 08/03/2005 288.43 107 87-107 99.25 189.18
MW-03 11/22/2005 288.43 107 87-107 98.84 189.59
MW-03 06/05/2006 288.43 107 87-107 97.00 191.43
MW-03 11/06/2006 288.43 107 87-107 102.60 185.83
MW-03 05/23/2007 288.43 107 87-107 102.90 185.53
MW-03 11/28/2007 288.43 107 87-107 -- --
MW-03 06/09/2008 288.43 107 87-107 -- --
MW-03 09/10/2008 288.43 107 87-107 103.45 184.98
MW-03 12/02/2008 288.43 107 87-107 -- --
MW-03 09/08/2009 288.43 107 87-107 -- --
MW-03 06/28/2010 288.43 107 87-107 103.25 185.18
MW-03 12/13/2010 288.43 107 87-107 -- --
MW-03 06/20/2011 288.43 107 87-107 101.20 187.23
MW-03 12/08/2011 288.43 107 87-107 102.12 186.31
MW-03 06/18/2012 288.43 107 87-107 100.65 187.78
MW-03 11/26/2012 288.43 107 87-107 103.20 185.23
MW-03 06/24/2013 288.43 107 87-107 103.35 185.08
MW-03 11/18/2013 288.43 107 87-107 103.55 184.88
MW-03 05/12/2014 288.43 107 87-107 103.55 184.88
MW-03 11/10/2014 288.43 107 87-107 Dry --
MW-03 06/22/2015 288.38 107 87-107 -- --
MW-03 09/08/2015 288.38 107 87-107 -- --
MW-03 11/16/2015 288.38 107 87-107 Dry --
MW-03 02/15/2016 288.38 107 87-107 Dry --
MW-03 05/09/2016 288.38 107 87-107 Dry --
MW-03 08/22/2016 288.38 107 87-107 Dry --
MW-03 11/28/2016 288.38 107 87-107 Dry --
MW-03 03/06/2017 288.38 107 87-107 Dry --
MW-03 05/22/2017 288.38 107 87-107 Dry --
MW-03 06/19/2017 288.38 107 87-107 Dry --
MW-03 08/28/2017 288.38 107 87-107 Dry --
MW-03 12/11/2017 288.38 107 87-107 Dry --
MW-03 02/12/2018 288.38 107 87-107 103.55 184.83
MW-03 05/21/2018 288.38 107 87-107 103.70 184.68
MW-03 07/30/2018 288.38 107 87-107 Dry --
MW-03 10/16/2018 288.38 107 87-107 Dry --
MW-03 01/07/2019 288.38 107 87-107 Dry --
MW-03 04/22/2019 288.38 107 87-107 100.94 187.44
MW-03 07/15/2019 288.38 107 87-107 100.55 187.83
MW-03 11/04/2019 288.38 107 87-107 99.73 188.65
MW-03 06/15/2020 288.38 107 87-107 Dry --
ERM 11 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-04 10/01/2002 288.32 112 87-112 94.40 193.92
MW-04 11/19/2002 288.32 112 87-112 94.10 194.22
MW-04 02/27/2003 288.32 112 87-112 93.06 195.26
MW-04 06/06/2003 288.32 112 87-112 94.44 193.88
MW-04 08/21/2003 288.32 112 87-112 97.88 190.44
MW-04 12/31/2003 288.32 112 87-112 97.59 190.73
MW-04 02/05/2004 288.32 112 87-112 96.10 192.22
MW-04 03/17/2004 288.32 112 87-112 97.10 191.22
MW-04 05/19/2004 288.32 112 87-112 97.86 190.46
MW-04 08/26/2004 288.32 112 87-112 99.14 189.18
MW-04 11/17/2004 288.32 112 87-112 97.15 191.17
MW-04 05/12/2005 288.32 112 87-112 93.15 195.17
MW-04 08/03/2005 288.32 112 87-112 99.60 188.72
MW-04 11/22/2005 288.32 112 87-112 99.18 189.14
MW-04 06/05/2006 288.32 112 87-112 97.31 191.01
MW-04 11/06/2006 288.32 112 87-112 102.81 185.51
MW-04 05/23/2007 288.32 112 87-112 103.09 185.23
MW-04 11/28/2007 288.32 112 87-112 108.13 180.19
MW-04 06/09/2008 288.32 112 87-112 107.64 180.68
MW-04 09/10/2008 288.32 112 87-112 -- --
MW-04 12/02/2008 288.32 112 87-112 -- --
MW-04 09/08/2009 288.32 112 87-112 -- --
MW-04 06/28/2010 288.32 112 87-112 -- --
MW-04 12/13/2010 288.32 112 87-112 -- --
MW-04 06/20/2011 288.32 112 87-112 102.73 185.59
MW-04 10/17/2011 288.32 112 87-112 103.83 184.49
MW-04 06/18/2012 288.32 112 87-112 101.40 186.92
MW-04 11/26/2012 288.32 112 87-112 104.20 184.12
MW-04 06/24/2013 288.32 112 87-112 104.06 184.26
MW-04 11/18/2013 288.32 112 87-112 104.30 184.02
MW-04 05/12/2014 288.32 112 87-112 Dry --
MW-04 11/10/2014 288.32 112 87-112 Dry --
MW-04 06/22/2015 288.78 112 87-112 -- --
MW-04 09/08/2015 288.78 112 87-112 -- --
MW-04 11/16/2015 288.78 112 87-112 Dry --
MW-04 02/15/2016 288.78 112 87-112 Dry --
MW-04 05/09/2016 288.78 112 87-112 Dry --
MW-04 08/22/2016 288.78 112 87-112 Dry --
MW-04 11/28/2016 288.78 112 87-112 Dry --
MW-04 03/06/2017 288.78 112 87-112 Dry --
MW-04 05/22/2017 288.78 112 87-112 Dry --
MW-04 06/19/2017 288.78 112 87-112 Dry --
MW-04 08/28/2017 288.78 112 87-112 Dry --
ERM 12 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-04 12/11/2017 288.78 112 87-112 Dry --
MW-04 02/12/2018 288.78 112 87-112 104.11 184.67
MW-04 05/21/2018 288.78 112 87-112 104.60 184.18
MW-04 07/30/2018 288.78 112 87-112 Dry --
MW-04 10/16/2018 288.78 112 87-112 104.59 184.19
MW-04 01/07/2019 288.78 112 87-112 104.06 184.72
MW-04 04/22/2019 288.78 112 87-112 102.11 186.67
MW-04 07/15/2019 288.78 112 87-112 101.70 187.08
MW-04 11/04/2019 288.78 112 87-112 100.92 187.86
MW-04 06/15/2020 288.78 112 87-112 99.00 189.78
MW-05D 06/28/2010 285.79 202 180-190 102.29 183.50
MW-05D 12/13/2010 285.79 202 180-190 104.30 181.49
MW-05D 06/20/2011 285.79 202 180-190 99.19 186.60
MW-05D 10/17/2011 285.79 202 180-190 101.08 184.71
MW-05D 06/18/2012 285.79 202 180-190 98.10 187.69
MW-05D 11/26/2012 285.79 202 180-190 101.65 184.14
MW-05D 06/24/2013 285.79 202 180-190 103.05 182.74
MW-05D 11/18/2013 285.79 202 180-190 105.20 180.59
MW-05D 05/12/2014 285.79 202 180-190 105.91 179.88
MW-05D 11/10/2014 285.79 202 180-190 106.47 179.32
MW-05D 06/22/2015 285.75 202 180-190 106.99 178.76
MW-05D 09/08/2015 285.75 202 180-190 107.63 178.12
MW-05D 11/16/2015 285.75 202 180-190 108.14 177.61
MW-05D 02/15/2016 285.75 202 180-190 107.50 178.25
MW-05D 05/09/2016 285.75 202 180-190 107.11 178.64
MW-05D 08/22/2016 285.75 202 180-190 107.81 177.94
MW-05D 11/28/2016 285.75 202 180-190 106.30 179.45
MW-05D 03/06/2017 285.75 202 180-190 105.11 180.64
MW-05D 05/22/2017 285.75 202 180-190 104.42 181.33
MW-05D 06/19/2017 285.75 202 180-190 105.12 180.63
MW-05D 08/28/2017 285.75 202 180-190 105.00 180.75
MW-05D 12/11/2017 285.75 202 180-190 105.13 180.62
MW-05D 02/12/2018 285.75 202 180-190 103.49 182.26
MW-05D 05/21/2018 285.75 202 180-190 103.31 182.44
MW-05D 07/30/2018 285.75 202 180-190 103.21 182.54
MW-05D 10/16/2018 285.75 202 180-190 102.45 183.30
MW-05D 01/07/2019 285.75 202 180-190 101.23 184.52
MW-05D 04/22/2019 285.75 202 180-190 99.31 186.44
MW-05D 07/15/2019 285.75 202 180-190 98.79 186.96
MW-05D 11/04/2019 285.75 202 180-190 97.90 187.85
MW-05D 06/15/2020 285.75 202 180-190 -- --
MW-05D 11/09/2020 285.75 202 180-190 -- --
MW-05D 04/05/2021 285.75 202 180-190 -- --
ERM 13 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-05S 03/11/2002 285.79 112 87-112 -- --
MW-05S 10/01/2002 285.79 112 87-112 91.90 193.89
MW-05S 11/19/2002 285.79 112 87-112 92.20 193.59
MW-05S 02/27/2003 285.79 112 87-112 90.96 194.83
MW-05S 06/06/2003 285.79 112 87-112 92.34 193.45
MW-05S 08/21/2003 285.79 112 87-112 95.32 190.47
MW-05S 12/31/2003 285.79 112 87-112 95.04 190.75
MW-05S 02/05/2004 285.79 112 87-112 93.31 192.48
MW-05S 03/17/2004 285.79 112 87-112 94.74 191.05
MW-05S 05/19/2004 285.79 112 87-112 95.46 190.33
MW-05S 08/26/2004 285.79 112 87-112 96.13 189.66
MW-05S 11/17/2004 285.79 112 87-112 94.88 190.91
MW-05S 05/12/2005 285.79 112 87-112 90.99 194.80
MW-05S 08/03/2005 285.79 112 87-112 97.11 188.68
MW-05S 11/22/2005 285.79 112 87-112 96.08 189.71
MW-05S 06/05/2006 285.79 112 87-112 94.61 191.18
MW-05S 11/06/2006 285.79 112 87-112 99.81 185.98
MW-05S 05/23/2007 285.79 112 87-112 100.57 185.22
MW-05S 11/28/2007 285.79 112 87-112 106.44 179.35
MW-05S 06/09/2008 285.79 112 87-112 109.13 176.66
MW-05S 09/10/2008 285.79 112 87-112 107.33 178.46
MW-05S 12/02/2008 285.79 112 87-112 105.72 180.07
MW-05S 09/08/2009 285.79 112 87-112 104.10 181.69
MW-05S 06/28/2010 285.79 112 87-112 102.01 183.78
MW-05S 12/13/2010 285.79 112 87-112 104.19 181.60
MW-05S 06/20/2011 285.79 112 87-112 99.04 186.75
MW-05S 10/17/2011 285.79 112 87-112 101.01 184.78
MW-05S 06/18/2012 285.79 112 87-112 98.00 187.79
MW-05S 11/26/2012 285.79 112 87-112 101.37 184.42
MW-05S 06/24/2013 285.79 112 87-112 103.05 182.74
MW-05S 11/18/2013 285.79 112 87-112 104.62 181.17
MW-05S 05/12/2014 285.79 112 87-112 105.89 179.90
MW-05S 11/10/2014 285.79 112 87-112 106.31 179.48
MW-05S 04/21/2015 285.93 112 87-112 108.35 177.58
MW-05S 06/22/2015 285.93 112 87-112 107.14 178.79
MW-05S 09/08/2015 285.93 112 87-112 107.60 178.33
MW-05S 11/16/2015 285.93 112 87-112 107.97 177.96
MW-05S 02/15/2016 285.93 112 87-112 107.75 178.18
MW-05S 05/09/2016 285.93 112 87-112 107.32 178.61
MW-05S 08/22/2016 285.93 112 87-112 107.81 178.12
MW-05S 11/28/2016 285.93 112 87-112 106.55 179.38
MW-05S 03/06/2017 285.93 112 87-112 104.83 181.10
MW-05S 05/22/2017 285.93 112 87-112 104.34 181.59
ERM 14 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-05S 06/19/2017 285.93 112 87-112 105.10 180.83
MW-05S 08/28/2017 285.93 112 87-112 105.01 180.92
MW-05S 12/11/2017 285.93 112 87-112 105.11 180.82
MW-05S 02/12/2018 285.93 112 87-112 104.05 181.88
MW-05S 05/21/2018 285.93 112 87-112 101.81 184.12
MW-05S 07/30/2018 285.93 112 87-112 101.78 184.15
MW-05S 10/16/2018 285.93 112 87-112 102.53 183.40
MW-05S 01/07/2019 285.93 112 87-112 101.84 184.09
MW-05S 04/22/2019 285.93 112 87-112 99.37 186.56
MW-05S 07/15/2019 285.93 112 87-112 98.85 187.08
MW-05S 11/04/2019 285.93 112 87-112 97.96 187.97
MW-05S 06/15/2020 285.93 112 87-112 96.10 189.83
MW-05S 11/09/2020 285.93 112 87-112 -- --
MW-05S 04/05/2021 285.93 112 87-112 -- --
MW-06 10/01/2002 286.54 112 87-112 92.80 193.74
MW-06 11/19/2002 286.54 112 87-112 93.20 193.34
MW-06 02/27/2003 286.54 112 87-112 91.97 194.57
MW-06 06/06/2003 286.54 112 87-112 93.25 193.29
MW-06 08/21/2003 286.54 112 87-112 96.16 190.38
MW-06 12/31/2003 286.54 112 87-112 96.03 190.51
MW-06 02/05/2004 286.54 112 87-112 94.36 192.18
MW-06 03/17/2004 286.54 112 87-112 95.66 190.88
MW-06 05/19/2004 286.54 112 87-112 96.41 190.13
MW-06 08/26/2004 286.54 112 87-112 97.00 189.54
MW-06 11/17/2004 286.54 112 87-112 95.84 190.70
MW-06 05/12/2005 286.54 112 87-112 91.81 194.73
MW-06 08/03/2005 286.54 112 87-112 97.80 188.74
MW-06 11/22/2005 286.54 112 87-112 97.13 189.41
MW-06 06/05/2006 286.54 112 87-112 95.43 191.11
MW-06 11/06/2006 286.54 112 87-112 100.77 185.77
MW-06 05/23/2007 286.54 112 87-112 101.22 185.32
MW-06 11/28/2007 286.54 112 87-112 107.30 179.24
MW-06 06/09/2008 286.54 112 87-112 105.06 181.48
MW-06 09/10/2008 286.54 112 87-112 108.05 178.49
MW-06 12/02/2008 286.54 112 87-112 106.55 179.99
MW-06 09/08/2009 286.54 112 87-112 104.80 181.74
MW-06 06/28/2010 286.54 112 87-112 103.02 183.52
MW-06 12/13/2010 286.54 112 87-112 105.26 181.28
MW-06 06/20/2011 286.54 112 87-112 100.13 186.41
MW-06 10/17/2011 286.54 112 87-112 102.10 184.44
MW-06 06/18/2012 286.54 112 87-112 98.83 187.71
MW-06 11/26/2012 286.54 112 87-112 102.23 184.31
MW-06 06/24/2013 286.54 112 87-112 103.77 182.77
ERM 15 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-06 11/18/2013 286.54 112 87-112 105.10 181.44
MW-06 05/12/2014 286.54 112 87-112 106.55 179.99
MW-06 11/10/2014 286.54 112 87-112 107.02 179.52
MW-06 04/21/2015 286.54 112 87-112 108.86 177.68
MW-06 06/22/2015 286.54 112 87-112 107.73 178.81
MW-06 09/08/2015 286.54 112 87-112 108.32 178.22
MW-06 11/16/2015 286.54 112 87-112 108.56 177.98
MW-06 02/15/2016 286.54 112 87-112 108.92 177.62
MW-06 05/09/2016 286.54 112 87-112 108.46 178.08
MW-06 08/22/2016 286.54 112 87-112 109.24 177.30
MW-06 11/28/2016 286.54 112 87-112 107.60 178.94
MW-06 03/06/2017 286.54 112 87-112 106.20 180.34
MW-06 05/22/2017 286.54 112 87-112 106.03 180.51
MW-06 06/19/2017 286.54 112 87-112 107.14 179.40
MW-06 08/28/2017 286.54 112 87-112 106.90 179.64
MW-06 12/11/2017 286.54 112 87-112 107.26 179.28
MW-06 02/12/2018 286.54 112 87-112 104.89 181.65
MW-06 05/21/2018 286.54 112 87-112 104.23 182.31
MW-06 07/30/2018 286.54 112 87-112 103.99 182.55
MW-06 10/16/2018 286.54 112 87-112 103.21 183.33
MW-06 01/07/2019 286.54 112 87-112
-- --
MW-06 04/22/2019 286.54 112 87-112 -- --
MW-06 07/15/2019 286.54 112 87-112 -- --
MW-06 11/04/2019 286.54 112 87-112 98.67 187.87
MW-06 06/15/2020 286.54 112 87-112 Dry --
MW-07 10/01/2002 287.58 114 89-114 93.90 193.68
MW-07 11/19/2002 287.58 114 89-114 94.25 193.33
MW-07 02/27/2003 287.58 114 89-114 92.95 194.63
MW-07 06/06/2003 287.58 114 89-114 94.02 193.56
MW-07 08/21/2003 287.58 114 89-114 97.00 190.58
MW-07 12/31/2003 287.58 114 89-114 97.22 190.36
MW-07 02/05/2004 287.58 114 89-114 95.82 191.76
MW-07 03/17/2004 287.58 114 89-114 96.77 190.81
MW-07 05/19/2004 287.58 114 89-114 97.66 189.92
MW-07 08/26/2004 287.58 114 89-114 98.31 189.27
MW-07 11/17/2004 287.58 114 89-114 96.99 190.59
MW-07 05/12/2005 287.58 114 89-114 92.46 195.12
MW-07 08/03/2005 287.58 114 89-114 98.38 189.20
MW-07 11/22/2005 287.58 114 89-114 98.67 188.91
MW-07 06/05/2006 287.58 114 89-114 96.20 191.38
MW-07 11/06/2006 287.58 114 89-114 101.90 185.68
MW-07 05/23/2007 287.58 114 89-114 102.00 185.58
MW-07 11/28/2007 287.58 114 89-114 108.10 179.48
ERM 16 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-07 06/09/2008 287.58 114 89-114 106.15 181.43
MW-07 09/10/2008 287.58 114 89-114 108.76 178.82
MW-07 12/02/2008 287.58 114 89-114 107.17 180.41
MW-07 09/08/2009 287.58 114 89-114 105.90 181.68
MW-07 06/28/2010 287.58 114 89-114 104.39 183.19
MW-07 12/13/2010 287.58 114 89-114 106.39 181.19
MW-07 06/20/2011 287.58 114 89-114 101.81 185.77
MW-07 10/17/2011 287.58 114 89-114 103.65 183.93
MW-07 06/18/2012 287.58 114 89-114 100.22 187.36
MW-07 11/26/2012 287.58 114 89-114 103.29 184.29
MW-07 06/24/2013 287.58 114 89-114 104.61 182.97
MW-07 11/18/2013 287.58 114 89-114 106.03 181.55
MW-07 05/12/2014 287.58 114 89-114 107.35 180.23
MW-07 11/10/2014 287.58 114 89-114 107.90 179.68
MW-07 06/22/2015 287.57 114 89-114 108.70 178.87
MW-07 09/08/2015 287.57 114 89-114 109.28 178.29
MW-07 11/16/2015 287.57 114 89-114 109.74 177.83
MW-07 02/15/2016 287.57 114 89-114 -- --
MW-07 05/09/2016 287.57 114 89-114 108.82 178.75
MW-07 08/22/2016 287.57 114 89-114 109.00 178.57
MW-07 11/28/2016 287.57 114 89-114 107.69 179.88
MW-07 03/06/2017 287.57 114 89-114 106.85 180.72
MW-07 05/22/2017 287.57 114 89-114 106.19 181.38
MW-07 06/19/2017 287.57 114 89-114 106.86 180.71
MW-07 08/28/2017 287.57 114 89-114 106.95 180.62
MW-07 12/11/2017 287.57 114 89-114 106.88 180.69
MW-07 02/12/2018 287.57 114 89-114 106.01 181.56
MW-07 05/21/2018 287.57 114 89-114 105.14 182.43
MW-07 07/30/2018 287.57 114 89-114 104.94 182.63
MW-07 10/16/2018 287.57 114 89-114 104.17 183.40
MW-07 01/07/2019 287.57 114 89-114 103.05 184.52
MW-07 04/22/2019 287.57 114 89-114 101.19 186.38
MW-07 07/15/2019 287.57 114 89-114 100.43 187.14
MW-07 11/04/2019 287.57 114 89-114 99.42 188.15
MW-07 06/15/2020 287.57 114 89-114 97.51 190.06
MW-08 12/31/2003 286.03 113 88-113 95.54 190.49
MW-08 02/05/2004 286.03 113 88-113 93.66 192.37
MW-08 03/17/2004 286.03 113 88-113 95.14 190.89
MW-08 05/19/2004 286.03 113 88-113 96.02 190.01
MW-08 08/26/2004 286.03 113 88-113 96.22 189.81
MW-08 11/17/2004 286.03 113 88-113 95.50 190.53
MW-08 05/12/2005 286.03 113 88-113 90.80 195.23
MW-08 08/03/2005 286.03 113 88-113 97.30 188.73
ERM 17 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-08 11/22/2005 286.03 113 88-113 96.37 189.66
MW-08 06/05/2006 286.03 113 88-113 94.84 191.19
MW-08 11/06/2006 286.03 113 88-113 100.02 186.01
MW-08 05/23/2007 286.03 113 88-113 100.68 185.35
MW-08 11/28/2007 286.03 113 88-113 106.90 179.13
MW-08 06/09/2008 286.03 113 88-113 104.42 181.61
MW-08 09/10/2008 286.03 113 88-113 107.70 178.33
MW-08 12/02/2008 286.03 113 88-113 106.36 179.67
MW-08 09/08/2009 286.03 113 88-113 104.35 181.68
MW-08 06/28/2010 286.03 113 88-113 103.01 183.02
MW-08 12/13/2010 286.03 113 88-113 105.08 180.95
MW-08 06/20/2011 286.03 113 88-113 99.71 186.32
MW-08 12/08/2011 286.03 113 88-113 100.55 185.48
MW-08 06/18/2012 286.03 113 88-113 98.22 187.81
MW-08 11/26/2012 286.03 113 88-113 101.95 184.08
MW-08 06/24/2013 286.03 113 88-113 103.49 182.54
MW-08 11/18/2013 286.03 113 88-113 105.30 180.73
MW-08 05/12/2014 286.03 113 88-113 106.35 179.68
MW-08 11/10/2014 286.03 113 88-113 106.58 179.45
MW-08 04/21/2015 285.94 113 88-113 108.57 177.37
MW-08 06/22/2015 285.94 113 88-113 107.40 178.54
MW-08 09/08/2015 285.94 113 88-113 107.95 177.99
MW-08 11/16/2015 285.94 113 88-113 108.39 177.55
MW-08 02/15/2016 285.94 113 88-113 -- --
MW-08 05/09/2016 285.94 113 88-113 107.48 178.46
MW-08 08/22/2016 285.94 113 88-113 107.98 177.96
MW-08 11/28/2016 285.94 113 88-113 106.38 179.56
MW-08 03/06/2017 285.94 113 88-113 105.31 180.63
MW-08 05/22/2017 285.94 113 88-113 104.72 181.22
MW-08 06/19/2017 285.94 113 88-113 105.48 180.46
MW-08 08/28/2017 285.94 113 88-113 105.23 180.71
MW-08 12/11/2017 285.94 113 88-113 105.45 180.49
MW-08 02/12/2018 285.94 113 88-113 104.41 181.53
MW-08 05/21/2018 285.94 113 88-113 103.60 182.34
MW-08 07/30/2018 285.94 113 88-113 103.49 182.45
MW-08 10/16/2018 285.94 113 88-113 102.71 183.23
MW-08 01/07/2019 285.94 113 88-113 101.62 184.32
MW-08 04/22/2019 285.94 113 88-113 99.75 186.19
MW-08 07/15/2019 285.94 113 88-113 99.03 186.91
MW-08 11/04/2019 285.94 113 88-113 98.15 187.79
MW-08 06/15/2020 285.94 113 88-113 96.23 189.71
MW-08 11/09/2020 285.94 113 88-113 96.28 189.66
MW-08 04/05/2021 285.94 113 88-113 95.46 190.48
ERM 18 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-09 12/31/2003 284.54 115 90-115 93.95 190.59
MW-09 02/05/2004 284.54 115 90-115 92.19 192.35
MW-09 03/17/2004 284.54 115 90-115 93.99 190.55
MW-09 05/19/2004 284.54 115 90-115 94.54 190.00
MW-09 08/26/2004 284.54 115 90-115 94.37 190.17
MW-09 11/17/2004 284.54 115 90-115 94.38 190.16
MW-09 05/12/2005 284.54 115 90-115 89.18 195.36
MW-09 08/03/2005 284.54 115 90-115 96.44 188.10
MW-09 11/22/2005 284.54 115 90-115 94.29 190.25
MW-09 06/05/2006 284.54 115 90-115 93.45 191.09
MW-09 11/06/2006 284.54 115 90-115 98.12 186.42
MW-09 05/23/2007 284.54 115 90-115 99.55 184.99
MW-09 11/28/2007 284.54 115 90-115 105.81 178.73
MW-09 06/09/2008 284.54 115 90-115 102.87 181.67
MW-09 09/10/2008 284.54 115 90-115 106.75 177.79
MW-09 12/02/2008 284.54 115 90-115 105.47 179.07
MW-09 09/08/2009 284.54 115 90-115 102.90 181.64
MW-09 06/28/2010 284.54 115 90-115 101.92 182.62
MW-09 12/13/2010 284.54 115 90-115 103.97 180.57
MW-09 06/20/2011 284.54 115 90-115 98.07 186.47
MW-09 10/17/2011 284.54 115 90-115 100.01 184.53
MW-09 06/18/2012 284.54 115 90-115 96.68 187.86
MW-09 11/26/2012 284.54 115 90-115 100.84 183.70
MW-09 06/24/2013 284.54 115 90-115 102.13 182.41
MW-09 11/18/2013 284.54 115 90-115 103.21 181.33
MW-09 05/12/2014 284.54 115 90-115 104.89 179.65
MW-09 11/10/2014 284.54 115 90-115 105.28 179.26
MW-09 06/22/2015 284.67 115 90-115 106.03 178.64
MW-09 09/08/2015 284.67 115 90-115 106.60 178.07
MW-09 11/16/2015 284.67 115 90-115 107.05 177.62
MW-09 02/15/2016 284.67 115 90-115 106.50 178.17
MW-09 05/09/2016 284.67 115 90-115 106.05 178.62
MW-09 08/22/2016 284.67 115 90-115 106.68 177.99
MW-09 11/28/2016 284.67 115 90-115 105.14 179.53
MW-09 03/06/2017 284.67 115 90-115 103.81 180.86
MW-09 05/22/2017 284.67 115 90-115 103.28 181.39
MW-09 06/19/2017 284.67 115 90-115 104.18 180.49
MW-09 08/28/2017 284.67 115 90-115 103.81 180.86
MW-09 12/11/2017 284.67 115 90-115 103.99 180.68
MW-09 02/12/2018 284.67 115 90-115 102.88 181.79
MW-09 05/21/2018 284.67 115 90-115 102.09 182.58
MW-09 07/30/2018 284.67 115 90-115 101.98 182.69
MW-09 10/16/2018 284.67 115 90-115 101.16 183.51
ERM 19 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-09 01/07/2019 284.67 115 90-115 100.11 184.56
MW-09 04/22/2019 284.67 115 90-115 98.29 186.38
MW-09 07/15/2019 284.67 115 90-115 97.64 187.03
MW-09 11/04/2019 284.67 115 90-115 96.68 187.99
MW-09 06/15/2020 284.67 115 90-115 94.85 189.82
MW-09 11/09/2020 284.67 115 90-115 94.98 189.69
MW-09 04/05/2021 284.67 115 90-115 94.12 190.55
MW-10 12/31/2003 284.61 115 90-115 93.02 191.59
MW-10 02/05/2004 284.61 115 90-115 91.11 193.50
MW-10 03/17/2004 284.61 115 90-115 92.93 191.68
MW-10 05/19/2004 284.61 115 90-115 93.96 190.65
MW-10 08/26/2004 284.61 115 90-115 94.63 189.98
MW-10 11/17/2004 284.61 115 90-115 93.26 191.35
MW-10 05/12/2005 284.61 115 90-115 89.75 194.86
MW-10 08/03/2005 284.61 115 90-115 96.05 188.56
MW-10 11/22/2005 284.61 115 90-115 93.97 190.64
MW-10 06/05/2006 284.61 115 90-115 93.32 191.29
MW-10 11/06/2006 284.61 115 90-115 98.25 186.36
MW-10 05/23/2007 284.61 115 90-115 99.42 185.19
MW-10 11/28/2007 284.61 115 90-115 105.20 179.41
MW-10 06/09/2008 284.61 115 90-115 102.92 181.69
MW-10 09/10/2008 284.61 115 90-115 106.24 178.37
MW-10 12/02/2008 284.61 115 90-115 104.47 180.14
MW-10 09/08/2009 284.61 115 90-115 103.10 181.51
MW-10 06/28/2010 284.61 115 90-115 103.31 181.30
MW-10 12/13/2010 284.61 115 90-115 102.40 182.21
MW-10 06/20/2011 284.61 115 90-115 97.08 187.53
MW-10 12/08/2011 284.61 115 90-115 97.91 186.70
MW-10 06/18/2012 284.61 115 90-115 96.36 188.25
MW-10 11/26/2012 284.61 115 90-115 99.68 184.93
MW-10 06/24/2013 284.61 115 90-115 102.19 182.42
MW-10 11/18/2013 284.61 115 90-115 103.45 181.16
MW-10 05/12/2014 284.61 115 90-115 105.29 179.32
MW-10 11/10/2014 284.61 115 90-115 106.38 178.23
MW-10 06/22/2015 284.56 115 90-115 105.91 178.65
MW-10 09/08/2015 284.56 115 90-115 106.75 177.81
MW-10 11/16/2015 284.56 115 90-115 107.10 177.46
MW-10 02/15/2016 284.56 115 90-115 106.48 178.08
MW-10 05/09/2016 284.56 115 90-115 106.19 178.37
MW-10 08/22/2016 284.56 115 90-115 106.61 177.95
MW-10 11/28/2016 284.56 115 90-115 105.04 179.52
MW-10 03/06/2017 284.56 115 90-115 103.65 180.91
MW-10 05/22/2017 284.56 115 90-115 103.10 181.46
ERM 20 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-10 06/19/2017 284.56 115 90-115 103.87 180.69
MW-10 08/28/2017 284.56 115 90-115 103.74 180.82
MW-10 12/11/2017 284.56 115 90-115 104.20 180.36
MW-10 02/12/2018 284.56 115 90-115 102.72 181.84
MW-10 05/21/2018 284.56 115 90-115 102.10 182.46
MW-10 07/30/2018 284.56 115 90-115 102.12 182.44
MW-10 10/16/2018 284.56 115 90-115 101.40 183.16
MW-10 01/07/2019 284.56 115 90-115 100.05 184.51
MW-10 04/22/2019 284.56 115 90-115 98.28 186.28
MW-10 07/15/2019 284.56 115 90-115 97.80 186.76
MW-10 11/04/2019 284.56 115 90-115 96.96 187.60
MW-10 06/15/2020 284.56 115 90-115 95.27 189.29
MW-10 11/09/2020 284.56 115 90-115 95.22 189.34
MW-10 04/05/2021 284.56 115 90-115 94.39 190.17
MW-11 12/31/2003 288.60 115 90-115 97.80 190.80
MW-11 02/05/2004 288.60 115 90-115 96.56 192.04
MW-11 03/17/2004 288.60 115 90-115 97.35 191.25
MW-11 05/19/2004 288.60 115 90-115 98.19 190.41
MW-11 08/26/2004 288.60 115 90-115 99.54 189.06
MW-11 11/17/2004 288.60 115 90-115 97.38 191.22
MW-11 05/12/2005 288.60 115 90-115 93.68 194.92
MW-11 08/03/2005 288.60 115 90-115 99.47 189.13
MW-11 11/22/2005 288.60 115 90-115 99.77 188.83
MW-11 06/05/2006 288.60 115 90-115 97.43 191.17
MW-11 11/06/2006 288.60 115 90-115 103.09 185.51
MW-11 05/23/2007 288.60 115 90-115 103.12 185.48
MW-11 11/28/2007 288.60 115 90-115 108.84 179.76
MW-11 06/09/2008 288.60 115 90-115 107.16 181.44
MW-11 09/10/2008 288.60 115 90-115 109.45 179.15
MW-11 12/02/2008 288.60 115 90-115 107.75 180.85
MW-11 09/08/2009 288.60 115 90-115 106.80 181.80
MW-11 06/28/2010 288.60 115 90-115 104.82 183.78
MW-11 12/13/2010 288.60 115 90-115 106.50 182.10
MW-11 06/20/2011 288.60 115 90-115 102.18 186.42
MW-11 10/17/2011 288.60 115 90-115 104.00 184.60
MW-11 06/18/2012 288.60 115 90-115 101.20 187.40
MW-11 11/26/2012 288.60 115 90-115 103.90 184.70
MW-11 06/24/2013 288.60 115 90-115 105.41 183.19
MW-11 11/18/2013 288.60 115 90-115 106.39 182.21
MW-11 05/12/2014 288.60 115 90-115 108.20 180.40
MW-11 11/10/2014 288.60 115 90-115 108.83 179.77
MW-11 04/21/2015 288.59 115 90-115 110.47 178.12
MW-11 06/22/2015 288.59 115 90-115 109.71 178.88
ERM 21 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-11 09/08/2015 288.59 115 90-115 110.14 178.45
MW-11 11/16/2015 288.59 115 90-115 110.57 178.02
MW-11 02/15/2016 288.59 115 90-115 110.42 178.17
MW-11 05/09/2016 288.59 115 90-115 109.69 178.90
MW-11 08/22/2016 288.59 115 90-115 110.30 178.29
MW-11 11/28/2016 288.59 115 90-115 108.72 179.87
MW-11 03/06/2017 288.59 115 90-115 107.64 180.95
MW-11 05/22/2017 288.59 115 90-115 107.00 181.59
MW-11 06/19/2017 288.59 115 90-115 108.73 179.86
MW-11 08/28/2017 288.59 115 90-115 107.88 180.71
MW-11 12/11/2017 288.59 115 90-115 107.72 180.87
MW-11 02/12/2018 288.59 115 90-115 106.77 181.82
MW-11 05/21/2018 288.59 115 90-115 106.25 182.34
MW-11 07/30/2018 288.59 115 90-115 106.06 182.53
MW-11 10/16/2018 288.59 115 90-115 105.25 183.34
MW-11 01/07/2019 288.59 115 90-115 104.01 184.58
MW-11 04/22/2019 288.59 115 90-115 102.12 186.47
MW-11 07/15/2019 288.59 115 90-115 101.60 186.99
MW-11 11/04/2019 288.59 115 90-115 100.80 187.79
MW-11 06/15/2020 288.59 115 90-115 98.70 189.89
MW-11 11/09/2020 288.59 115 90-115 98.52 190.07
MW-11 04/05/2021 288.59 115 90-115 97.58 191.01
MW-12 09/10/2008 287.64 150 105-125 108.60 179.04
MW-12 12/02/2008 287.64 150 105-125 106.74 180.90
MW-12 09/08/2009 287.64 150 105-125 105.75 181.89
MW-12 06/28/2010 287.64 150 105-125 103.20 184.44
MW-12 12/13/2010 287.64 150 105-125 105.06 182.58
MW-12 06/20/2011 287.64 150 105-125 100.68 186.96
MW-12 12/08/2011 287.64 150 105-125 101.50 186.14
MW-12 06/18/2012 287.64 150 105-125 99.92 187.72
MW-12 11/26/2012 287.64 150 105-125 102.71 184.93
MW-12 06/24/2013 287.64 150 105-125 104.47 183.17
MW-12 11/18/2013 287.64 150 105-125 105.60 182.04
MW-12 05/12/2014 287.64 150 105-125 107.35 180.29
MW-12 11/10/2014 287.64 150 105-125 108.90 178.74
MW-12 04/21/2015 287.54 150 105-125 109.40 178.14
MW-12 06/22/2015 287.54 150 105-125 108.46 179.08
MW-12 09/08/2015 287.54 150 105-125 109.17 178.37
MW-12 11/16/2015 287.54 150 105-125 109.74 177.80
MW-12 02/15/2016 287.54 150 105-125 109.04 178.50
MW-12 05/09/2016 287.54 150 105-125 108.71 178.83
MW-12 08/22/2016 287.54 150 105-125 109.11 178.43
MW-12 11/28/2016 287.54 150 105-125 107.83 179.71
ERM 22 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-12 03/06/2017 287.54 150 105-125 106.59 180.95
MW-12 05/22/2017 287.54 150 105-125 106.00 181.54
MW-12 06/19/2017 287.54 150 105-125 106.58 180.96
MW-12 08/28/2017 287.54 150 105-125 106.74 180.80
MW-12 12/11/2017 287.54 150 105-125 106.74 180.80
MW-12 02/12/2018 287.54 150 105-125 105.62 181.92
MW-12 05/21/2018 287.54 150 105-125 105.09 182.45
MW-12 07/30/2018 287.54 150 105-125 104.69 182.85
MW-12 10/16/2018 287.54 150 105-125 104.25 183.29
MW-12 01/07/2019 287.54 150 105-125 102.90 184.64
MW-12 04/22/2019 287.54 150 105-125 101.02 186.52
MW-12 07/15/2019 287.54 150 105-125 100.55 186.99
MW-12 11/04/2019 287.54 150 105-125 99.71 187.83
MW-12 06/15/2020 287.54 150 105-125 97.78 189.76
MW-13 09/10/2008 287.86 150 105-125 108.85 179.01
MW-13 12/02/2008 287.86 150 105-125 107.04 180.82
MW-13 09/08/2009 287.86 150 105-125 106.75 181.11
MW-13 06/28/2010 287.86 150 105-125 103.50 184.36
MW-13 12/13/2010 287.86 150 105-125 105.40 182.46
MW-13 06/20/2011 287.86 150 105-125 101.04 186.82
MW-13 10/17/2011 287.86 150 105-125 102.87 184.99
MW-13 06/18/2012 287.86 150 105-125 100.21 187.65
MW-13 11/26/2012 287.86 150 105-125 102.97 184.89
MW-13 06/24/2013 287.86 150 105-125 104.71 183.15
MW-13 11/18/2013 287.86 150 105-125 105.80 182.06
MW-13 05/12/2014 287.86 150 105-125 107.53 180.33
MW-13 11/10/2014 287.86 150 105-125 108.19 179.67
MW-13 04/21/2015 287.78 150 105-125 109.78 178.00
MW-13 06/22/2015 287.78 150 105-125 108.80 178.98
MW-13 09/08/2015 287.78 150 105-125 109.37 178.41
MW-13 11/16/2015 287.78 150 105-125 109.96 177.82
MW-13 02/15/2016 287.78 150 105-125 109.30 178.48
MW-13 05/09/2016 287.78 150 105-125 108.93 178.85
MW-13 08/22/2016 287.78 150 105-125 109.31 178.47
MW-13 11/28/2016 287.78 150 105-125 108.05 179.73
MW-13 03/06/2017 287.78 150 105-125 106.83 180.95
MW-13 05/22/2017 287.78 150 105-125 106.26 181.52
MW-13 06/19/2017 287.78 150 105-125 106.85 180.93
MW-13 08/28/2017 287.78 150 105-125 107.00 180.78
MW-13 12/11/2017 287.78 150 105-125 106.99 180.79
MW-13 02/12/2018 287.78 150 105-125 105.90 181.88
MW-13 05/21/2018 287.78 150 105-125 105.33 182.45
MW-13 07/30/2018 287.78 150 105-125 105.29 182.49
ERM 23 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-13 10/16/2018 287.78 150 105-125 104.53 183.25
MW-13 01/07/2019 287.78 150 105-125 103.15 184.63
MW-13 04/22/2019 287.78 150 105-125 101.31 186.47
MW-13 07/15/2019 287.78 150 105-125 100.81 186.97
MW-13 11/04/2019 287.78 150 105-125 99.94 187.84
MW-13 06/15/2020 287.78 150 105-125 98.01 189.77
MW-14D 06/28/2010 287.99 206 184-194 104.28 183.71
MW-14D 12/13/2010 287.99 206 184-194 106.10 181.89
MW-14D 06/20/2011 287.99 206 184-194 101.75 186.24
MW-14D 12/08/2011 287.99 206 184-194 102.41 185.58
MW-14D 06/18/2012 287.99 206 184-194 100.66 187.33
MW-14D 11/26/2012 287.99 206 184-194 103.58 184.41
MW-14D 06/24/2013 287.99 206 184-194 105.11 182.88
MW-14D 11/18/2013 287.99 206 184-194 106.31 181.68
MW-14D 05/12/2014 287.99 206 184-194 107.67 180.32
MW-14D 11/10/2014 287.99 206 184-194 108.31 179.68
MW-14D 06/22/2015 287.85 206 184-194 109.93 177.92
MW-14D 09/08/2015 287.85 206 184-194 109.63 178.22
MW-14D 11/16/2015 287.85 206 184-194 110.11 177.74
MW-14D 02/15/2016 287.85 206 184-194 109.54 178.31
MW-14D 05/09/2016 287.85 206 184-194 109.14 178.71
MW-14D 08/22/2016 287.85 206 184-194 109.42 178.43
MW-14D 11/28/2016 287.85 206 184-194 108.18 179.67
MW-14D 03/06/2017 287.85 206 184-194 107.20 180.65
MW-14D 05/22/2017 287.85 206 184-194 106.51 181.34
MW-14D 06/19/2017 287.85 206 184-194 107.55 180.30
MW-14D 08/28/2017 287.85 206 184-194 107.41 180.44
MW-14D 12/11/2017 287.85 206 184-194 107.24 180.61
MW-14D 02/12/2018 287.85 206 184-194 106.20 181.65
MW-14D 05/21/2018 287.85 206 184-194 105.57 182.28
MW-14D 07/30/2018 287.85 206 184-194 105.36 182.49
MW-14D 10/16/2018 287.85 206 184-194 104.56 183.29
MW-14D 01/07/2019 287.85 206 184-194 103.32 184.53
MW-14D 04/22/2019 287.85 206 184-194 101.42 186.43
MW-14D 07/15/2019 287.85 206 184-194 100.93 186.92
MW-14D 11/04/2019 287.85 206 184-194 100.06 187.79
MW-14D 06/15/2020 287.85 206 184-194 98.07 189.78
MW-14D 11/09/2020 287.85 206 184-194 97.95 189.90
MW-14D 04/05/2021 287.85 206 184-194 97.09 190.76
MW-14S 06/28/2010 287.96 135 120-135 104.16 183.80
MW-14S 12/13/2010 287.96 135 120-135 106.10 181.86
MW-14S 06/20/2011 287.96 135 120-135 101.65 186.31
MW-14S 10/17/2011 287.96 135 120-135 103.51 184.45
ERM 24 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-14S 12/08/2011 287.96 135 120-135 102.41 185.55
MW-14S 06/18/2012 287.96 135 120-135 100.53 187.43
MW-14S 11/26/2012 287.96 135 120-135 103.42 184.54
MW-14S 06/24/2013 287.96 135 120-135 104.95 183.01
MW-14S 11/18/2013 287.96 135 120-135 106.10 181.86
MW-14S 05/12/2014 287.96 135 120-135 107.67 180.29
MW-14S 11/10/2014 287.96 135 120-135 108.25 179.71
MW-14S 04/21/2015 287.82 135 120-135 109.80 178.02
MW-14S 06/22/2015 287.82 135 120-135 108.95 178.87
MW-14S 09/08/2015 287.82 135 120-135 109.62 178.20
MW-14S 11/16/2015 287.82 135 120-135 110.09 177.73
MW-14S 02/15/2016 287.82 135 120-135 109.48 178.34
MW-14S 05/09/2016 287.82 135 120-135 108.11 179.71
MW-14S 08/22/2016 287.82 135 120-135 109.42 178.40
MW-14S 11/28/2016 287.82 135 120-135 108.10 179.72
MW-14S 03/06/2017 287.82 135 120-135 107.06 180.76
MW-14S 05/22/2017 287.82 135 120-135 106.45 181.37
MW-14S 06/19/2017 287.82 135 120-135 107.10 180.72
MW-14S 08/28/2017 287.82 135 120-135 107.28 180.54
MW-14S 12/11/2017 287.82 135 120-135 102.28 185.54
MW-14S 02/12/2018 287.82 135 120-135 -- --
MW-14S 05/21/2018 287.82 135 120-135 105.55 182.27
MW-14S 07/30/2018 287.82 135 120-135 104.34 183.48
MW-14S 10/16/2018 287.82 135 120-135 104.36 183.46
MW-14S 01/07/2019 287.82 135 120-135 103.35 184.47
MW-14S 04/22/2019 287.82 135 120-135 101.48 186.34
MW-14S 07/15/2019 287.82 135 120-135 100.91 186.91
MW-14S 11/04/2019 287.82 135 120-135 100.05 187.77
MW-14S 06/15/2020 287.82 135 120-135 98.05 189.77
MW-14S 09/11/2020 287.82 135 120-135 97.96 189.86
MW-14S 04/05/2021 287.82 135 120-135 97.09 190.73
MW-15D 06/28/2010 285.74 210 188-198 -- --
MW-15D 12/13/2010 285.74 211 188-198 105.50 180.24
MW-15D 06/20/2011 285.74 212 188-198 99.05 186.69
MW-15D 10/17/2011 285.74 213 188-198 100.20 185.54
MW-15D 06/18/2012 285.74 214 188-198 98.02 187.72
MW-15D 11/26/2012 285.74 215 188-198 102.89 182.85
MW-15D 06/24/2013 285.74 216 188-198 103.13 182.61
MW-15D 11/18/2013 285.74 216 188-198 105.98 179.76
MW-15D 05/12/2014 285.74 216 188-198 106.00 179.74
MW-15D 11/10/2014 285.74 216 188-198 107.75 177.99
MW-15D 06/22/2015 285.85 216 188-198 107.10 178.75
MW-15D 09/08/2015 285.85 216 188-198 107.79 178.06
ERM 25 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-15D 11/16/2015 285.85 216 188-198 108.33 177.52
MW-15D 02/15/2016 285.85 216 188-198 107.61 178.24
MW-15D 05/09/2016 285.85 216 188-198 107.14 178.71
MW-15D 08/22/2016 285.85 216 188-198 107.91 177.94
MW-15D 11/28/2016 285.85 216 188-198 106.42 179.43
MW-15D 03/06/2017 285.85 216 188-198 104.93 180.92
MW-15D 05/22/2017 285.85 216 188-198 104.40 181.45
MW-15D 06/19/2017 285.85 216 188-198 105.13 180.72
MW-15D 08/28/2017 285.85 216 188-198 105.00 180.85
MW-15D 12/11/2017 285.85 216 188-198 105.19 180.66
MW-15D 02/12/2018 285.85 216 188-198 103.22 182.63
MW-15D 05/21/2018 285.85 216 188-198 103.28 182.57
MW-15D 07/30/2018 285.85 216 188-198 103.21 182.64
MW-15D 10/16/2018 285.85 216 188-198 102.43 183.42
MW-15D 01/07/2019 285.85 216 188-198 101.20 184.65
MW-15D 04/22/2019 285.85 216 188-198 99.42 186.43
MW-15D 07/15/2019 285.85 216 188-198 98.87 186.98
MW-15D 11/04/2019 285.85 216 188-198 97.92 187.93
MW-15D 06/15/2020 285.85 216 188-198 95.78 190.07
MW-15D 11/09/2020 285.85 216 188-198 96.23 189.62
MW-15D 04/05/2021 285.85 216 188-198 95.44 190.41
MW-15D01 12/13/2010 285.31 315 310-315 106.13 179.18
MW-15D01 06/20/2011 285.31 315 310-315 98.64 186.67
MW-15D01 10/17/2011 285.31 315 310-315 100.21 185.10
MW-15D01 06/18/2012 285.31 315 310-315 97.68 187.63
MW-15D01 11/26/2012 285.31 315 310-315 104.02 181.29
MW-15D01 06/24/2013 285.31 315 310-315 102.48 182.83
MW-15D01 11/18/2013 285.31 315 310-315 106.59 178.72
MW-15D01 05/12/2014 285.31 315 310-315 105.28 180.03
MW-15D01 11/10/2014 285.31 315 310-315 108.73 176.58
MW-15D01 06/22/2015 285.27 315 310-315 106.60 178.67
MW-15D01 09/08/2015 285.27 315 310-315 107.48 177.79
MW-15D01 11/16/2015 285.27 315 310-315 107.94 177.33
MW-15D01 02/15/2016 285.27 315 310-315 107.25 178.02
MW-15D01 05/09/2016 285.27 315 310-315 106.73 178.54
MW-15D01 08/22/2016 285.27 315 310-315 107.52 177.75
MW-15D01 11/28/2016 285.27 315 310-315 106.13 179.14
MW-15D01 03/06/2017 285.27 315 310-315 104.52 180.75
MW-15D01 05/22/2017 285.27 315 310-315 104.04 181.23
MW-15D01 06/19/2017 285.27 315 310-315 104.60 180.67
MW-15D01 08/28/2017 285.27 315 310-315 104.61 180.66
MW-15D01 12/11/2017 285.27 315 310-315 104.76 180.51
MW-15D01 02/12/2018 285.27 315 310-315 103.64 181.63
ERM 26 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-15D01 05/21/2018 285.27 315 310-315 102.40 182.87
MW-15D01 07/30/2018 285.27 315 310-315 102.79 182.48
MW-15D01 10/16/2018 285.27 315 310-315 101.97 183.30
MW-15D01 01/07/2019 285.27 315 310-315 100.73 184.54
MW-15D01 04/22/2019 285.27 315 310-315 98.97 186.30
MW-15D01 07/15/2019 285.27 315 310-315 98.43 186.84
MW-15D01 11/04/2019 285.27 315 310-315 97.51 187.76
MW-15D01 06/15/2020 285.27 315 310-315 96.12 189.15
MW-15D01 11/09/2020 285.27 315 310-315 95.82 189.45
MW-15D01 04/05/2021 285.27 315 310-315 95.04 190.23
MW-15S 06/28/2010 285.37 135 120-135 102.42 182.95
MW-15S 12/13/2010 285.37 135 120-135 104.40 180.97
MW-15S 06/20/2011 285.37 135 120-135 98.65 186.72
MW-15S 10/17/2011 285.37 135 120-135 100.68 184.69
MW-15S 06/18/2012 285.37 135 120-135 97.42 187.95
MW-15S 11/26/2012 285.37 135 120-135 101.33 184.04
MW-15S 06/24/2013 285.37 135 120-135 103.06 182.31
MW-15S 11/18/2013 285.37 135 120-135 104.50 180.87
MW-15S 05/12/2014 285.37 135 120-135 105.87 179.50
MW-15S 11/10/2014 285.37 135 120-135 106.09 179.28
MW-15S 06/22/2015 285.40 135 120-135 106.85 178.55
MW-15S 09/08/2015 285.40 135 120-135 107.43 177.97
MW-15S 11/16/2015 285.40 135 120-135 107.98 177.42
MW-15S 02/15/2016 285.40 135 120-135 107.28 178.12
MW-15S 05/09/2016 285.40 135 120-135 106.89 178.51
MW-15S 08/22/2016 285.40 135 120-135 107.46 177.94
MW-15S 11/28/2016 285.40 135 120-135 105.82 179.58
MW-15S 03/06/2017 285.40 135 120-135 104.64 180.76
MW-15S 05/22/2017 285.40 135 120-135 104.10 181.30
MW-15S 06/19/2017 285.40 135 120-135 104.97 180.43
MW-15S 08/28/2017 285.40 135 120-135 104.62 180.78
MW-15S 12/11/2017 285.40 135 120-135 104.84 180.56
MW-15S 02/12/2018 285.40 135 120-135 103.66 181.74
MW-15S 05/21/2018 285.40 135 120-135 102.92 182.48
MW-15S 07/30/2018 285.40 135 120-135 102.81 182.59
MW-15S 10/16/2018 285.40 135 120-135 102.07 183.33
MW-15S 01/07/2019 285.40 135 120-135 100.95 184.45
MW-15S 04/22/2019 285.40 135 120-135 99.13 186.27
MW-15S 07/15/2019 285.40 135 120-135 98.42 186.98
MW-15S 11/04/2019 285.40 135 120-135 97.55 187.85
MW-15S 06/15/2020 285.40 135 120-135 95.75 189.65
MW-15S 11/09/2020 285.40 135 120-135 95.90 189.50
MW-15S 04/06/2021 285.40 135 120-135 95.13 190.27
ERM 27 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-16D 06/28/2010 285.15 182 152-162 102.38 182.77
MW-16D 12/13/2010 285.15 182 152-162 104.30 180.85
MW-16D 06/20/2011 285.15 182 152-162 99.04 186.11
MW-16D 10/17/2011 285.15 182 152-162 100.89 184.26
MW-16D 06/18/2012 285.15 182 152-162 97.49 187.66
MW-16D 11/26/2012 285.15 182 152-162 101.51 183.64
MW-16D 06/24/2013 285.15 182 152-162 102.49 182.66
MW-16D 11/18/2013 285.15 182 152-162 104.12 181.03
MW-16D 05/12/2014 285.15 182 152-162 105.28 179.87
MW-16D 11/10/2014 285.15 182 152-162 105.83 179.32
MW-16D 06/22/2015 285.17 182 152-162 106.50 178.67
MW-16D 09/08/2015 285.17 182 152-162 107.06 178.11
MW-16D 11/16/2015 285.17 182 152-162 107.63 177.54
MW-16D 02/15/2016 285.17 182 152-162 107.05 178.12
MW-16D 05/09/2016 285.17 182 152-162 106.59 178.58
MW-16D 08/22/2016 285.17 182 152-162 107.10 178.07
MW-16D 11/28/2016 285.17 182 152-162 105.60 179.57
MW-16D 03/06/2017 285.17 182 152-162 104.48 180.69
MW-16D 05/22/2017 285.17 182 152-162 103.90 181.27
MW-16D 06/19/2017 285.17 182 152-162 106.64 178.53
MW-16D 08/28/2017 285.17 182 152-162 104.42 180.75
MW-16D 12/11/2017 285.17 182 152-162 104.55 180.62
MW-16D 02/12/2018 285.17 182 152-162 103.54 181.63
MW-16D 05/21/2018 285.17 182 152-162 102.71 182.46
MW-16D 07/30/2018 285.17 182 152-162 102.55 182.62
MW-16D 10/16/2018 285.17 182 152-162 101.71 183.46
MW-16D 01/07/2019 285.17 182 152-162 100.70 184.47
MW-16D 04/22/2019 285.17 182 152-162 98.88 186.29
MW-16D 07/15/2019 285.17 182 152-162 98.14 187.03
MW-16D 11/04/2019 285.17 182 152-162 97.22 187.95
MW-16D 06/15/2020 285.17 182 152-162 95.26 189.91
MW-16D 11/09/2020 285.17 182 152-162 95.39 189.78
MW-16D 04/05/2021 285.17 182 152-162 94.63 190.54
MW-17D 06/28/2010 285.96 202 189-199 103.29 182.67
MW-17D 12/13/2010 285.96 202 189-199 105.30 180.66
MW-17D 06/20/2011 285.96 202 189-199 99.50 186.46
MW-17D 10/17/2011 285.96 202 189-199 101.35 184.61
MW-17D 06/18/2012 285.96 202 189-199 98.30 187.66
MW-17D 11/26/2012 285.96 202 189-199 101.23 184.73
MW-17D 06/24/2013 285.96 202 189-199 103.26 182.70
MW-17D 11/18/2013 285.96 202 189-199 104.89 181.07
MW-17D 05/12/2014 285.96 202 189-199 106.09 179.87
MW-17D 11/10/2014 285.96 202 189-199 106.86 179.10
ERM 28 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-17D 06/22/2015 285.87 202 189-199 107.20 178.67
MW-17D 09/08/2015 285.87 202 189-199 107.82 178.05
MW-17D 11/16/2015 285.87 202 189-199 108.39 177.48
MW-17D 02/15/2016 285.87 202 189-199 107.76 178.11
MW-17D 05/09/2016 285.87 202 189-199 107.33 178.54
MW-17D 08/22/2016 285.87 202 189-199 108.16 177.71
MW-17D 11/28/2016 285.87 202 189-199 106.58 179.29
MW-17D 03/06/2017 285.87 202 189-199 105.20 180.67
MW-17D 05/22/2017 285.87 202 189-199 104.67 181.20
MW-17D 06/19/2017 285.87 202 189-199 105.31 180.56
MW-17D 08/28/2017 285.87 202 189-199 105.21 180.66
MW-17D 12/11/2017 285.87 202 189-199 105.32 180.55
MW-17D 02/12/2018 285.87 202 189-199 104.23 181.64
MW-17D 05/21/2018 285.87 202 189-199 103.51 182.36
MW-17D 07/30/2018 285.87 202 189-199 103.34 182.53
MW-17D 10/16/2018 285.87 202 189-199 102.60 183.27
MW-17D 01/07/2019 285.87 202 189-199 101.41 184.46
MW-17D 04/22/2019 285.87 202 189-199 99.62 186.25
MW-17D 07/15/2019 285.87 202 189-199 98.98 186.89
MW-17D 11/04/2019 285.87 202 189-199 98.12 187.75
MW-17D 06/15/2020 285.87 202 189-199 96.44 189.43
MW-17D 11/09/2020 285.87 202 189-199 96.61 189.26
MW-17D 04/05/2021 285.87 202 189-199 95.43 190.44
MW-17S 06/28/2010 285.99 120 105-120 103.06 182.93
MW-17S 12/13/2010 285.99 120 105-120 104.77 181.22
MW-17S 06/20/2011 285.99 120 105-120 99.49 186.50
MW-17S 10/17/2011 285.99 120 105-120 101.52 184.47
MW-17S 06/18/2012 285.99 120 105-120 98.22 187.77
MW-17S 11/26/2012 285.99 120 105-120 101.82 184.17
MW-17S 06/24/2013 285.99 120 105-120 103.45 182.54
MW-17S 11/18/2013 285.99 120 105-120 104.88 181.11
MW-17S 05/12/2014 285.99 120 105-120 106.22 179.77
MW-17S 11/10/2014 285.99 120 105-120 106.54 179.45
MW-17S 04/21/2015 285.92 120 105-120 108.63 177.29
MW-17S 06/22/2015 285.92 120 105-120 107.26 178.66
MW-17S 09/08/2015 285.92 120 105-120 107.83 178.09
MW-17S 11/16/2015 285.92 120 105-120 108.39 177.53
MW-17S 02/15/2016 285.92 120 105-120 107.79 178.13
MW-17S 05/09/2016 285.92 120 105-120 107.39 178.53
MW-17S 08/22/2016 285.92 120 105-120 107.92 178.00
MW-17S 11/28/2016 285.92 120 105-120 106.35 179.57
MW-17S 03/06/2017 285.92 120 105-120 105.28 180.64
MW-17S 05/22/2017 285.92 120 105-120 104.69 181.23
ERM 29 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-17S 06/19/2017 285.92 120 105-120 105.42 180.50
MW-17S 08/28/2017 285.92 120 105-120 105.20 180.72
MW-17S 12/11/2017 285.92 120 105-120 105.35 180.57
MW-17S 02/12/2018 285.92 120 105-120 104.29 181.63
MW-17S 05/21/2018 285.92 120 105-120 103.54 182.38
MW-17S 07/30/2018 285.92 120 105-120 103.42 182.50
MW-17S 10/16/2018 285.92 120 105-120 102.61 183.31
MW-17S 01/07/2019 285.92 120 105-120 101.52 184.40
MW-17S 04/22/2019 285.92 120 105-120 99.69 186.23
MW-17S 07/15/2019 285.92 120 105-120 99.03 186.89
MW-17S 11/04/2019 285.92 120 105-120 98.08 187.84
MW-17S 06/15/2020 285.92 120 105-120 96.21 189.71
MW-17S 11/09/2020 285.92 120 105-120 96.26 189.66
MW-17S 04/05/2021 285.92 120 105-120 95.44 190.48
MW-18D 12/13/2010 286.57 195 170-180 105.14 181.43
MW-18D 06/20/2011 286.57 195 170-180 100.11 186.46
MW-18D 10/17/2011 286.57 195 170-180 101.63 184.94
MW-18D 06/18/2012 286.57 195 170-180 99.93 186.64
MW-18D 11/26/2012 286.57 195 170-180 102.40 184.17
MW-18D 06/24/2013 286.57 195 170-180 104.63 181.94
MW-18D 11/18/2013 286.57 195 170-180 106.28 180.29
MW-18D 05/12/2014 286.57 195 170-180 107.10 179.47
MW-18D 11/10/2014 286.57 195 170-180 107.08 179.49
MW-18D 06/22/2015 286.57 195 170-180 108.07 178.50
MW-18D 09/08/2015 286.57 195 170-180 108.28 178.29
MW-18D 11/16/2015 286.57 195 170-180 108.72 177.85
MW-18D 02/15/2016 286.57 195 170-180 108.31 178.26
MW-18D 05/09/2016 286.57 195 170-180 107.92 178.65
MW-18D 08/22/2016 286.57 195 170-180 108.52 178.05
MW-18D 11/28/2016 286.57 195 170-180 107.05 179.52
MW-18D 03/06/2017 286.57 195 170-180 105.60 180.97
MW-18D 05/22/2017 286.57 195 170-180 105.24 181.33
MW-18D 06/19/2017 286.57 195 170-180 105.94 180.63
MW-18D 08/28/2017 286.57 195 170-180 105.86 180.71
MW-18D 12/11/2017 286.57 195 170-180 105.94 180.63
MW-18D 02/12/2018 286.57 195 170-180 104.89 181.68
MW-18D 05/21/2018 286.57 195 170-180 104.16 182.41
MW-18D 07/30/2018 286.57 195 170-180 104.04 182.53
MW-18D 10/16/2018 286.57 195 170-180 103.28 183.29
MW-18D 01/07/2019 286.57 195 170-180 102.10 184.47
MW-18D 04/22/2019 286.57 195 170-180 99.82 186.75
MW-18D 07/15/2019 286.57 195 170-180 99.60 186.97
MW-18D 11/04/2019 286.57 195 170-180 99.14 187.43
ERM 30 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-18D 06/15/2020 286.57 195 170-180 -- --
MW-18S 12/13/2010 286.16 136 120-135 104.60 181.56
MW-18S 06/20/2011 286.16 136 120-135 99.60 186.56
MW-18S 10/17/2011 286.16 136 120-135 101.59 184.57
MW-18S 06/18/2012 286.16 136 120-135 98.52 187.64
MW-18S 11/26/2012 286.16 136 120-135 101.84 184.32
MW-18S 06/24/2013 286.16 136 120-135 103.44 182.72
MW-18S 11/18/2013 286.16 136 120-135 104.79 181.37
MW-18S 05/12/2014 286.16 136 120-135 106.29 179.87
MW-18S 11/10/2014 286.16 136 120-135 106.60 179.56
MW-18S 04/21/2015 286.11 136 120-135 108.50 177.61
MW-18S 06/22/2015 286.11 136 120-135 107.32 178.79
MW-18S 09/08/2015 286.11 136 120-135 107.95 178.16
MW-18S 11/16/2015 286.11 136 120-135 108.46 177.65
MW-18S 02/15/2016 286.11 136 120-135 107.90 178.21
MW-18S 05/09/2016 286.11 136 120-135 107.49 178.62
MW-18S 08/22/2016 286.11 136 120-135 108.00 178.11
MW-18S 11/28/2016 286.11 136 120-135 106.52 179.59
MW-18S 03/06/2017 286.11 136 120-135 105.41 180.70
MW-18S 05/22/2017 286.11 136 120-135 104.82 181.29
MW-18S 06/19/2017 286.11 136 120-135 105.52 180.59
MW-18S 08/28/2017 286.11 136 120-135 105.39 180.72
MW-18S 12/11/2017 286.11 136 120-135 105.51 180.60
MW-18S 02/12/2018 286.11 136 120-135 104.44 181.67
MW-18S 05/21/2018 286.11 136 120-135 107.71 178.40
MW-18S 07/30/2018 286.11 136 120-135 103.60 182.51
MW-18S 10/16/2018 286.11 136 120-135 102.84 183.27
MW-18S 01/07/2019 286.11 136 120-135 101.70 184.41
MW-18S 04/22/2019 286.11 136 120-135 100.23 185.88
MW-18S 07/15/2019 286.11 136 120-135 99.16 186.95
MW-18S 11/04/2019 286.11 136 120-135 98.32 187.79
MW-18S 06/15/2020 286.11 136 120-135 -- --
MW-19D 12/13/2010 285.67 255 215-225 104.80 180.87
MW-19D 06/20/2011 285.67 255 215-225 99.02 186.65
MW-19D 10/17/2011 285.67 255 215-225 100.48 185.19
MW-19D 06/18/2012 285.67 255 215-225 98.62 187.05
MW-19D 11/26/2012 285.67 255 215-225 102.47 183.20
MW-19D 06/24/2013 285.67 255 215-225 102.91 182.76
MW-19D 11/18/2013 285.67 255 215-225 105.00 180.67
MW-19D 05/12/2014 285.67 255 215-225 106.21 179.46
MW-19D 11/10/2014 285.67 255 215-225 107.04 178.63
MW-19D 06/22/2015 285.68 255 215-225 106.90 178.78
MW-19D 09/08/2015 285.68 255 215-225 107.70 177.98
ERM 31 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-19D 11/16/2015 285.68 255 215-225 108.01 177.67
MW-19D 02/15/2016 285.68 255 215-225 107.93 177.75
MW-19D 05/09/2016 285.68 255 215-225 107.15 178.53
MW-19D 08/22/2016 285.68 255 215-225 107.92 177.76
MW-19D 11/28/2016 285.68 255 215-225 106.34 179.34
MW-19D 03/06/2017 285.68 255 215-225 105.50 180.18
MW-19D 05/22/2017 285.68 255 215-225 104.91 180.77
MW-19D 06/19/2017 285.68 255 215-225 104.97 180.71
MW-19D 08/28/2017 285.68 255 215-225 104.92 180.76
MW-19D 12/11/2017 285.68 255 215-225 104.94 180.74
MW-19D 02/12/2018 285.68 255 215-225 103.45 182.23
MW-19D 05/21/2018 285.68 255 215-225 103.42 182.26
MW-19D 07/30/2018 285.68 255 215-225 103.08 182.60
MW-19D 10/16/2018 285.68 255 215-225 102.31 183.37
MW-19D 01/07/2019 285.68 255 215-225 101.08 184.60
MW-19D 04/22/2019 285.68 255 215-225 99.24 186.44
MW-19D 07/15/2019 285.68 255 215-225 98.71 186.97
MW-19D 11/04/2019 285.68 255 215-225 97.79 187.89
MW-19D 06/15/2020 285.68 255 215-225 96.02 189.66
MW-19D 11/09/2020 285.68 255 215-225 96.02 189.66
MW-19D 04/05/2021 285.68 255 215-225 95.21 190.47
MW-19S 12/13/2010 285.32 136 120-135 104.50 180.82
MW-19S 06/20/2011 285.32 136 120-135 98.67 186.65
MW-19S 10/17/2011 285.32 136 120-135 100.67 184.65
MW-19S 06/18/2012 285.32 136 120-135 97.50 187.82
MW-19S 11/26/2012 285.32 136 120-135 101.20 184.12
MW-19S 06/24/2013 285.32 136 120-135 102.86 182.46
MW-19S 11/18/2013 285.32 136 120-135 104.35 180.97
MW-19S 05/12/2014 285.32 136 120-135 105.59 179.73
MW-19S 11/10/2014 285.32 136 120-135 106.45 178.87
MW-19S 06/22/2015 285.32 136 120-135 106.68 178.64
MW-19S 09/08/2015 285.32 136 120-135 107.39 177.93
MW-19S 11/16/2015 285.32 136 120-135 107.83 177.49
MW-19S 02/15/2016 285.32 136 120-135 107.19 178.13
MW-19S 05/09/2016 285.32 136 120-135 106.78 178.54
MW-19S 08/22/2016 285.32 136 120-135 107.35 177.97
MW-19S 11/28/2016 285.32 136 120-135 105.71 179.61
MW-19S 03/06/2017 285.32 136 120-135 104.60 180.72
MW-19S 05/22/2017 285.32 136 120-135 103.93 181.39
MW-19S 06/19/2017 285.32 136 120-135 104.79 180.53
MW-19S 08/28/2017 285.32 136 120-135 104.59 180.73
MW-19S 12/11/2017 285.32 136 120-135 104.75 180.57
MW-19S 02/12/2018 285.32 136 120-135 103.64 181.68
ERM 32 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-19S 05/21/2018 285.32 136 120-135 102.92 182.40
MW-19S 07/30/2018 285.32 136 120-135 102.94 182.38
MW-19S 10/16/2018 285.32 136 120-135 102.03 183.29
MW-19S 01/07/2019 285.32 136 120-135 100.82 184.50
MW-19S 04/22/2019 285.32 136 120-135 99.03 186.29
MW-19S 07/15/2019 285.32 136 120-135 98.41 186.91
MW-19S 11/04/2019 285.32 136 120-135 97.53 187.79
MW-19S 06/15/2020 285.32 136 120-135 95.71 189.61
MW-19S 11/09/2020 285.32 136 120-135 95.76 189.56
MW-19S 04/05/2021 285.32 136 120-135 94.89 190.43
MW-20D 12/13/2010 284.36 290 267-277 110.35 174.01
MW-20D 06/20/2011 284.36 290 267-277 97.65 186.71
MW-20D 10/17/2011 284.36 290 267-277 99.20 185.16
MW-20D 06/18/2012 284.36 290 267-277 96.60 187.76
MW-20D 11/26/2012 284.36 290 267-277 109.00 175.36
MW-20D 06/24/2013 284.36 290 267-277 101.71 182.65
MW-20D 11/18/2013 284.36 290 267-277 110.75 173.61
MW-20D 05/12/2014 284.36 290 267-277 105.20 179.16
MW-20D 11/10/2014 284.36 290 267-277 113.42 170.94
MW-20D 06/22/2015 284.43 290 267-277 106.41 178.02
MW-20D 09/08/2015 284.43 290 267-277 106.60 177.83
MW-20D 11/16/2015 284.43 290 267-277 107.24 177.19
MW-20D 02/15/2016 284.43 290 267-277 106.65 177.78
MW-20D 05/09/2016 284.43 290 267-277 106.84 177.59
MW-20D 08/22/2016 284.43 290 267-277 106.83 177.60
MW-20D 11/28/2016 284.43 290 267-277 105.90 178.53
MW-20D 03/06/2017 284.43 290 267-277 103.45 180.98
MW-20D 05/22/2017 284.43 290 267-277 103.09 181.34
MW-20D 06/19/2017 284.43 290 267-277 103.74 180.69
MW-20D 08/28/2017 284.43 290 267-277 103.68 180.75
MW-20D 12/11/2017 284.43 290 267-277 103.92 180.51
MW-20D 02/12/2018 284.43 290 267-277 102.73 181.70
MW-20D 05/21/2018 284.43 290 267-277 102.31 182.12
MW-20D 07/30/2018 284.43 290 267-277 101.82 182.61
MW-20D 10/16/2018 284.43 290 267-277 100.99 183.44
MW-20D 01/07/2019 284.43 290 267-277 99.78 184.65
MW-20D 04/22/2019 284.43 290 267-277 98.14 186.29
MW-20D 07/15/2019 284.43 290 267-277 97.57 186.86
MW-20D 11/04/2019 284.43 290 267-277 96.58 187.85
MW-20D 06/15/2020 284.43 290 267-277 96.59 187.84
MW-20D 11/09/2020 284.43 290 267-277 95.14 189.29
MW-20D 04/05/2021 284.43 290 267-277 95.14 189.29
MW-20D01 12/13/2010 284.43 325 305-315 110.60 173.83
ERM 33 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-20D01 06/20/2011 284.43 325 305-315 97.64 186.79
MW-20D01 10/17/2011 284.43 325 305-315 99.10 185.33
MW-20D01 06/18/2012 284.43 325 305-315 96.55 187.88
MW-20D01 11/26/2012 284.43 325 305-315 108.80 175.63
MW-20D01 06/24/2013 284.43 325 305-315 101.55 182.88
MW-20D01 11/18/2013 284.43 325 305-315 111.54 172.89
MW-20D01 05/12/2014 284.43 325 305-315 104.51 179.92
MW-20D01 11/10/2014 284.43 325 305-315 113.45 170.98
MW-20D01 06/22/2015 284.46 325 305-315 105.81 178.65
MW-20D01 09/08/2015 284.46 325 305-315 106.70 177.76
MW-20D01 11/16/2015 284.46 325 305-315 107.21 177.25
MW-20D01 02/15/2016 284.46 325 305-315 106.47 177.99
MW-20D01 05/09/2016 284.46 325 305-315 105.91 178.55
MW-20D01 08/22/2016 284.46 325 305-315 106.88 177.58
MW-20D01 11/28/2016 284.46 325 305-315 105.50 178.96
MW-20D01 03/06/2017 284.46 325 305-315 103.65 180.81
MW-20D01 05/22/2017 284.46 325 305-315 103.18 181.28
MW-20D01 06/19/2017 284.46 325 305-315 103.77 180.69
MW-20D01 08/28/2017 284.46 325 305-315 103.75 180.71
MW-20D01 12/11/2017 284.46 325 305-315 103.92 180.54
MW-20D01 02/12/2018 284.46 325 305-315 102.69 181.77
MW-20D01 05/21/2018 284.46 325 305-315 101.99 182.47
MW-20D01 07/30/2018 284.46 325 305-315 101.91 182.55
MW-20D01 10/16/2018 284.46 325 305-315 101.03 183.43
MW-20D01 01/07/2019 284.46 325 305-315 99.89 184.57
MW-20D01 04/22/2019 284.46 325 305-315 98.16 186.30
MW-20D01 07/15/2019 284.46 325 305-315 97.60 186.86
MW-20D01 11/04/2019 284.46 325 305-315 96.59 187.87
MW-20D01 06/15/2020 284.46 325 305-315 94.96 189.50
MW-20S 12/13/2010 284.33 136 120-135 103.82 180.51
MW-20S 06/20/2011 284.33 136 120-135 97.50 186.83
MW-20S 10/17/2011 284.33 136 120-135 99.46 184.87
MW-20S 06/18/2012 284.33 136 120-135 96.22 188.11
MW-20S 11/26/2012 284.33 136 120-135 107.78 176.55
MW-20S 06/24/2013 284.33 136 120-135 102.20 182.13
MW-20S 11/18/2013 284.33 136 120-135 103.97 180.36
MW-20S 05/12/2014 284.33 136 120-135 105.02 179.31
MW-20S 11/10/2014 284.33 136 120-135 105.43 178.90
MW-20S 06/22/2015 284.36 136 120-135 106.00 178.36
MW-20S 09/08/2015 284.36 136 120-135 106.73 177.63
MW-20S 11/16/2015 284.36 136 120-135 107.09 177.27
MW-20S 02/15/2016 284.36 136 120-135 106.42 177.94
MW-20S 05/09/2016 284.36 136 120-135 106.01 178.35
ERM 34 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-20S 08/22/2016 284.36 136 120-135 106.81 177.55
MW-20S 11/28/2016 284.36 136 120-135 105.00 179.36
MW-20S 03/06/2017 284.36 136 120-135 103.68 180.68
MW-20S 05/22/2017 284.36 136 120-135 103.14 181.22
MW-20S 06/19/2017 284.36 136 120-135 104.13 180.23
MW-20S 08/28/2017 284.36 136 120-135 103.60 180.76
MW-20S 12/11/2017 284.36 136 120-135 103.90 180.46
MW-20S 02/12/2018 284.36 136 120-135 107.68 176.68
MW-20S 05/21/2018 284.36 136 120-135 101.92 182.44
MW-20S 07/30/2018 284.36 136 120-135 101.90 182.46
MW-20S 10/16/2018 284.36 136 120-135 101.12 183.24
MW-20S 01/07/2019 284.36 136 120-135 99.96 184.40
MW-20S 04/22/2019 284.36 136 120-135 98.23 186.13
MW-20S 07/15/2019 284.36 136 120-135 97.56 186.80
MW-20S 11/04/2019 284.36 136 120-135 96.62 187.74
MW-20S 06/15/2020 284.36 136 120-135 94.91 189.45
MW-20S 11/09/2020 284.36 136 120-135 95.10 189.26
MW-20S 04/05/2021 284.36 136 120-135 94.27 190.09
MW-21D 11/18/2013 284.43 200.5 185-200 106.33 178.10
MW-21D 05/12/2014 284.43 200.5 185-200 107.35 177.08
MW-21D 11/10/2014 284.43 200.5 185-200 108.42 176.01
MW-21D 06/22/2015 287.77 200.5 185-200 108.98 178.79
MW-21D 09/08/2015 287.77 200.5 185-200 109.60 178.17
MW-21D 11/16/2015 287.77 200.5 185-200 109.75 178.02
MW-21D 02/15/2016 287.77 200.5 185-200 109.50 178.27
MW-21D 05/09/2016 287.77 200.5 185-200 109.31 178.46
MW-21D 08/22/2016 287.77 200.5 185-200 109.30 178.47
MW-21D 11/28/2016 287.77 200.5 185-200 108.13 179.64
MW-21D 03/06/2017 287.77 200.5 185-200 107.61 180.16
MW-21D 05/22/2017 287.77 200.5 185-200 106.44 181.33
MW-21D 06/19/2017 287.77 200.5 185-200 107.04 180.73
MW-21D 08/28/2017 287.77 200.5 185-200 107.27 180.50
MW-21D 12/11/2017 287.77 200.5 185-200 107.19 180.58
MW-21D 02/12/2018 287.77 200.5 185-200 -- --
MW-21D 05/21/2018 287.77 200.5 185-200 106.11 181.66
MW-21D 07/30/2018 287.77 200.5 185-200 105.31 182.46
MW-21D 10/16/2018 287.77 200.5 185-200 104.53 183.24
MW-21D 01/07/2019 287.77 200.5 185-200 103.35 184.42
MW-21D 04/22/2019 287.77 200.5 185-200 101.11 186.66
MW-21D 07/15/2019 287.77 200.5 185-200 100.81 186.96
MW-21D 11/04/2019 287.77 200.5 185-200 99.96 187.81
MW-21D 06/15/2020 287.77 200.5 185-200 97.95 189.82
MW-21S 11/18/2013 284.43 145 120-135 105.90 178.53
ERM 35 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-21S 05/12/2014 284.43 145 120-135 107.32 177.11
MW-21S 11/10/2014 284.43 145 120-135 107.85 176.58
MW-21S 04/21/2015 287.38 145 120-135 109.52 177.86
MW-21S 06/22/2015 287.38 145 120-135 108.62 178.76
MW-21S 09/08/2015 287.38 145 120-135 109.28 178.10
MW-21S 11/16/2015 287.38 145 120-135 109.78 177.60
MW-21S 02/15/2016 287.38 145 120-135 109.14 178.24
MW-21S 05/09/2016 287.38 145 120-135 108.77 178.61
MW-21S 08/22/2016 287.38 145 120-135 109.08 178.30
MW-21S 11/28/2016 287.38 145 120-135 107.72 179.66
MW-21S 03/06/2017 287.38 145 120-135 106.75 180.63
MW-21S 05/22/2017 287.38 145 120-135 106.09 181.29
MW-21S 06/19/2017 287.38 145 120-135 106.78 180.60
MW-21S 08/28/2017 287.38 145 120-135 106.89 180.49
MW-21S 12/11/2017 287.38 145 120-135 106.44 180.94
MW-21S 02/12/2018 287.38 145 120-135 105.83 181.55
MW-21S 05/21/2018 287.38 145 120-135 105.18 182.20
MW-21S 07/30/2018 287.38 145 120-135 104.94 182.44
MW-21S 10/16/2018 287.38 145 120-135 104.20 183.18
MW-21S 01/07/2019 287.38 145 120-135 103.02 184.36
MW-21S 04/22/2019 287.38 145 120-135 101.42 185.96
MW-21S 07/15/2019 287.38 145 120-135 100.41 186.97
MW-21S 11/04/2019 287.38 145 120-135 99.62 187.76
MW-21S 06/15/2020 287.38 145 120-135 97.65 189.73
MW-21S 11/09/2020 287.38 145 120-135 97.60 189.78
MW-21S 04/05/2021 287.38 145 120-135 96.72 190.66
MW-22S 11/18/2013 284.43 160 120-135 107.85 176.58
MW-22S 05/12/2014 284.43 160 120-135 109.20 175.23
MW-22S 11/10/2014 284.43 160 120-135 109.80 174.63
MW-22S 04/21/2015 289.31 160 120-135 111.41 177.90
MW-22S 06/22/2015 289.31 160 120-135 110.54 178.77
MW-22S 09/08/2015 289.31 160 120-135 111.13 178.18
MW-22S 11/16/2015 289.31 160 120-135 111.61 177.70
MW-22S 02/15/2016 289.31 160 120-135 111.09 178.22
MW-22S 05/09/2016 289.31 160 120-135 110.64 178.67
MW-22S 08/22/2016 289.31 160 120-135 110.88 178.43
MW-22S 11/28/2016 289.31 160 120-135 109.59 179.72
MW-22S 03/06/2017 289.31 160 120-135 108.66 180.65
MW-22S 05/22/2017 289.31 160 120-135 108.13 181.18
MW-22S 06/19/2017 289.31 160 120-135 108.73 180.58
MW-22S 08/28/2017 289.31 160 120-135 108.84 180.47
MW-22S 12/11/2017 289.31 160 120-135 108.77 180.54
MW-22S 02/12/2018 289.31 160 120-135 107.94 181.37
ERM 36 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
MW-22S 05/21/2018 289.31 160 120-135 107.04 182.27
MW-22S 07/30/2018 289.31 160 120-135 106.82 182.49
MW-22S 10/16/2018 289.31 160 120-135 106.06 183.25
MW-22S 01/07/2019 289.31 160 120-135 104.92 184.39
MW-22S 04/22/2019 289.31 160 120-135 103.02 186.29
MW-22S 07/15/2019 289.31 160 120-135 102.35 186.96
MW-22S 11/04/2019 289.31 160 120-135 101.47 187.84
MW-22S 06/15/2020 289.31 160 120-135 99.49 189.82
MW-22S 11/09/2020 289.31 160 120-135 99.43 189.88
MW-22S 04/05/2021 289.31 160 120-135 98.55 190.76
MW-23 04/21/2015 287.57 130 105-130 109.59 177.98
MW-23 06/22/2015 287.57 130 105-130 108.66 178.91
MW-23 09/08/2015 287.57 130 105-130 109.32 178.25
MW-23 11/16/2015 287.57 130 105-130 109.84 177.73
MW-23 02/15/2016 287.57 130 105-130 109.20 178.37
MW-23 05/09/2016 287.57 130 105-130 108.80 178.77
MW-23 08/22/2016 287.57 130 105-130 109.17 178.40
MW-23 11/28/2016 287.57 130 105-130 107.80 179.77
MW-23 03/06/2017 287.57 130 105-130 106.78 180.79
MW-23 05/22/2017 287.57 130 105-130 106.13 181.44
MW-23 06/19/2017 287.57 130 105-130 106.87 180.70
MW-23 08/28/2017 287.57 130 105-130 106.96 180.61
MW-23 12/11/2017 287.57 130 105-130 107.03 180.54
MW-23 02/12/2018 287.57 130 105-130 105.93 181.64
MW-23 05/21/2018 287.57 130 105-130 105.60 181.97
MW-23 07/30/2018 287.57 130 105-130 105.15 182.42
MW-23 10/16/2018 287.57 130 105-130 104.28 183.29
MW-23 01/07/2019 287.57 130 105-130 103.41 184.16
MW-23 04/22/2019 287.57 130 105-130 101.19 186.38
MW-23 07/15/2019 287.57 130 105-130 100.64 186.93
MW-23 11/04/2019 287.57 130 105-130 99.77 187.80
MW-23 06/15/2020 287.57 130 105-130 97.82 189.75
MW-23 11/09/2020 287.57 130 105-130 97.72 189.85
MW-23 04/05/2021 287.57 130 105-130 96.77 190.80
OB-07 09/10/2008 287.43 147 142-147 108.50 178.93
OB-07 12/02/2008 287.43 147 142-147 106.65 180.78
OB-07 09/08/2009 287.43 147 142-147 105.43 182.00
OB-07 06/28/2010 287.43 147 142-147 104.03 183.40
OB-07 12/13/2010 287.43 147 142-147 -- --
OB-07 06/20/2011 287.43 147 142-147 100.51 186.92
OB-07 12/08/2011 287.43 147 142-147 101.38 186.05
OB-07 06/18/2012 287.43 147 142-147 99.77 187.66
OB-07 11/26/2012 287.43 147 142-147 102.52 184.91
ERM 37 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
OB-07 06/24/2013 287.43 147 142-147 104.35 183.08
OB-07 11/18/2013 287.43 147 142-147 105.57 181.86
OB-07 05/12/2014 287.43 147 142-147 107.24 180.19
OB-07 11/10/2014 287.43 147 142-147 107.71 179.72
OB-07 06/22/2015 287.40 147 142-147 108.27 179.13
OB-07 09/08/2015 287.40 147 142-147 109.02 178.38
OB-07 11/16/2015 287.40 147 142-147 109.57 177.83
OB-07 02/15/2016 287.40 147 142-147 109.00 178.40
OB-07 05/09/2016 287.40 147 142-147 108.55 178.85
OB-07 08/22/2016 287.40 147 142-147 108.97 178.43
OB-07 11/28/2016 287.40 147 142-147 107.69 179.71
OB-07 03/06/2017 287.40 147 142-147 106.47 180.93
OB-07 05/22/2017 287.40 147 142-147 105.84 181.56
OB-07 06/19/2017 287.40 147 142-147 106.50 180.90
OB-07 08/28/2017 287.40 147 142-147 106.64 180.76
OB-07 12/11/2017 287.40 147 142-147 106.63 180.77
OB-07 02/12/2018 287.40 147 142-147 105.52 181.88
OB-07 05/21/2018 287.40 147 142-147 105.05 182.35
OB-07 07/30/2018 287.40 147 142-147 104.91 182.49
OB-07 10/16/2018 287.40 147 142-147 104.16 183.24
OB-07 01/07/2019 287.40 147 142-147 102.78 184.62
OB-07 04/22/2019 287.40 147 142-147 100.88 186.52
OB-07 07/15/2019 287.40 147 142-147 100.43 186.97
OB-07 11/04/2019 287.40 147 142-147 99.57 187.83
OB-07 06/15/2020 287.40 147 142-147 97.68 189.72
OB-08 09/10/2008 286.65 135 90-130 108.37 178.28
OB-08 12/02/2008 286.65 135 90-130 105.85 180.80
OB-08 09/08/2009 286.65 135 90-130 104.90 181.75
OB-08 06/28/2010 286.65 135 90-130 102.40 184.25
OB-08 12/13/2010 286.65 135 90-130 104.10 182.55
OB-08 06/20/2011 286.65 135 90-130 99.54 187.11
OB-08 12/08/2011 286.65 135 90-130 100.41 186.24
OB-08 06/18/2012 286.65 135 90-130 98.82 187.83
OB-08 11/26/2012 286.65 135 90-130 101.65 185.00
OB-08 06/24/2013 286.65 135 90-130 103.50 183.15
OB-08 11/18/2013 286.65 135 90-130 104.80 181.85
OB-08 05/12/2014 286.65 135 90-130 106.40 180.25
OB-08 11/10/2014 286.65 135 90-130 106.85 179.80
OB-08 04/21/2015 286.42 135 90-130 108.44 177.98
OB-08 06/22/2015 286.42 135 90-130 107.41 179.01
OB-08 09/08/2015 286.42 135 90-130 108.20 178.22
OB-08 11/16/2015 286.42 135 90-130 108.72 177.70
OB-08 02/15/2016 286.42 135 90-130 108.15 178.27
ERM 38 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
OB-08 05/09/2016 286.42 135 90-130 107.71 178.71
OB-08 08/22/2016 286.42 135 90-130 108.15 178.27
OB-08 11/28/2016 286.42 135 90-130 106.83 179.59
OB-08 03/06/2017 286.42 135 90-130 105.60 180.82
OB-08 05/22/2017 286.42 135 90-130 104.98 181.44
OB-08 06/19/2017 286.42 135 90-130 105.68 180.74
OB-08 08/28/2017 286.42 135 90-130 105.75 180.67
OB-08 12/11/2017 286.42 135 90-130 105.74 180.68
OB-08 02/12/2018 286.42 135 90-130 104.25 182.17
OB-08 05/21/2018 286.42 135 90-130 104.31 182.11
OB-08 07/30/2018 286.42 135 90-130 104.04 182.38
OB-08 10/16/2018 286.42 135 90-130 103.28 183.14
OB-08 01/07/2019 286.42 135 90-130 101.92 184.50
OB-08 04/22/2019 286.42 135 90-130 100.02 186.40
OB-08 07/15/2019 286.42 135 90-130 99.79 186.63
OB-08 11/04/2019 286.42 135 90-130 98.72 187.70
OB-08 06/15/2020 286.42 135 90-130 96.81 189.61
T01-01 05/23/2007 286.04 114 94-114 100.84 185.20
T01-01 11/28/2007 286.04 114 94-114 106.64 179.40
T01-01 06/09/2008 286.04 114 94-114 104.26 181.78
T01-01 09/10/2008 286.04 114 94-114 107.50 178.54
T01-01 12/02/2008 286.04 114 94-114 105.81 180.23
T01-01 09/08/2009 286.04 114 94-114 104.35 181.69
T01-01 06/28/2010 286.04 114 94-114 102.18 183.86
T01-01 12/13/2010 286.04 114 94-114 104.10 181.94
T01-01 06/20/2011 286.04 114 94-114 99.10 186.94
T01-01 10/17/2011 286.04 114 94-114 101.15 184.89
T01-01 06/18/2012 286.04 114 94-114 98.23 187.81
T01-01 11/26/2012 286.04 114 94-114 101.38 184.66
T01-01 06/24/2013 286.04 114 94-114 103.30 182.74
T01-01 11/18/2013 286.04 114 94-114 104.55 181.49
T01-01 05/12/2014 286.04 114 94-114 106.09 179.95
T01-01 11/10/2014 286.04 114 94-114 106.50 179.54
T01-01 06/22/2015 285.98 114 94-114 107.20 178.78
T01-01 09/08/2015 285.98 114 94-114 107.85 178.13
T01-01 11/16/2015 285.98 114 94-114 108.37 177.61
T01-01 02/15/2016 285.98 114 94-114 107.69 178.29
T01-01 05/09/2016 285.98 114 94-114 107.32 178.66
T01-01 08/22/2016 285.98 114 94-114 107.82 178.16
T01-01 11/28/2016 285.98 114 94-114 106.32 179.66
T01-01 03/06/2017 285.98 114 94-114 105.16 180.82
T01-01 05/22/2017 285.98 114 94-114 104.58 181.40
T01-01 06/19/2017 285.98 114 94-114 105.25 180.73
ERM 39 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T01-01 08/28/2017 285.98 114 94-114 105.19 180.79
T01-01 12/11/2017 285.98 114 94-114 105.32 180.66
T01-01 02/12/2018 285.98 114 94-114 104.20 181.78
T01-01 05/21/2018 285.98 114 94-114 103.58 182.40
T01-01 07/30/2018 285.98 114 94-114 103.60 182.38
T01-01 10/16/2018 285.98 114 94-114 102.81 183.17
T01-01 01/07/2019 285.98 114 94-114 101.45 184.53
T01-01 04/22/2019 285.98 114 94-114 99.63 186.35
T01-01 07/15/2019 285.98 114 94-114 99.11 186.87
T01-01 11/04/2019 285.98 114 94-114 98.22 187.76
T01-01 06/15/2020 285.98 114 94-114 96.41 189.57
T01-01 11/09/2020 285.98 114 94-114 96.34 189.64
T01-01 04/05/2021 285.98 114 94-114 95.43 190.55
T01-02 05/23/2007 273.62 102 82-102 88.05 185.57
T01-02 11/28/2007 273.62 102 82-102 93.77 179.85
T01-02 06/09/2008 273.62 102 82-102 92.08 181.54
T01-02 09/10/2008 273.62 102 82-102 94.35 179.27
T01-02 12/02/2008 273.62 102 82-102 92.60 181.02
T01-02 09/08/2009 273.62 102 82-102 91.60 182.02
T01-02 06/28/2010 273.62 102 82-102 89.49 184.13
T01-02 12/13/2010 273.62 102 82-102 91.27 182.35
T01-02 06/20/2011 273.62 102 82-102 87.11 186.51
T01-02 12/08/2011 273.62 102 82-102 87.89 185.73
T01-02 06/18/2012 273.62 102 82-102 86.15 187.47
T01-02 11/26/2012 273.62 102 82-102 88.75 184.87
T01-02 06/24/2013 273.62 102 82-102 90.35 183.27
T01-02 11/18/2013 273.62 102 82-102 92.03 181.59
T01-02 05/12/2014 273.62 102 82-102 93.12 180.50
T01-02 11/10/2014 273.62 102 82-102 95.68 177.94
T01-02 04/21/2015 273.58 102 82-102 95.10 178.48
T01-02 06/22/2015 273.58 102 82-102 94.31 179.27
T01-02 09/08/2015 273.58 102 82-102 94.96 178.62
T01-02 11/16/2015 273.58 102 82-102 95.44 178.14
T01-02 02/15/2016 273.58 102 82-102 95.00 178.58
T01-02 05/09/2016 273.58 102 82-102 94.28 179.30
T01-02 08/22/2016 273.58 102 82-102 94.84 178.74
T01-02 11/28/2016 273.58 102 82-102 93.66 179.92
T01-02 03/06/2017 273.58 102 82-102 92.53 181.05
T01-02 05/22/2017 273.58 102 82-102 91.96 181.62
T01-02 06/19/2017 273.58 102 82-102 92.50 181.08
T01-02 08/28/2017 273.58 102 82-102 92.75 180.83
T01-02 12/11/2017 273.58 102 82-102 92.67 180.91
T01-02 02/12/2018 273.58 102 82-102 91.65 181.93
ERM 40 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T01-02 05/21/2018 273.58 102 82-102 91.09 182.49
T01-02 07/30/2018 273.58 102 82-102 90.71 182.87
T01-02 10/16/2018 273.58 102 82-102 90.19 183.39
T01-02 01/07/2019 273.58 102 82-102 88.83 184.75
T01-02 04/22/2019 273.58 102 82-102 86.92 186.66
T01-02 07/15/2019 273.58 102 82-102 86.39 187.19
T01-02 11/04/2019 273.58 102 82-102 85.36 188.22
T01-02 06/15/2020 273.58 102 82-102 83.61 189.97
T01-03 06/09/2008 288.40 150 128-148 107.13 181.27
T01-03 09/10/2008 288.40 150 128-148 109.00 179.40
T01-03 12/02/2008 288.40 150 128-148 107.10 181.30
T01-03 09/08/2009 288.40 150 128-148 106.30 182.10
T01-03 06/28/2010 288.40 150 128-148 104.15 184.25
T01-03 12/13/2010 288.40 150 128-148 106.10 182.30
T01-03 06/20/2011 288.40 150 128-148 107.45 180.95
T01-03 10/17/2011 288.40 150 128-148 104.21 184.19
T01-03 06/18/2012 288.40 150 128-148 101.29 187.11
T01-03 11/26/2012 288.40 150 128-148 103.62 184.78
T01-03 06/24/2013 288.40 150 128-148 104.97 183.43
T01-03 11/18/2013 288.40 150 128-148 106.07 182.33
T01-03 05/12/2014 288.40 150 128-148 107.56 180.84
T01-03 11/10/2014 288.40 150 128-148 107.98 180.42
T01-03 06/22/2015 288.20 150 128-148 109.00 179.20
T01-03 09/08/2015 288.20 150 128-148 109.30 178.90
T01-03 11/16/2015 288.20 150 128-148 110.17 178.03
T01-03 02/15/2016 288.20 150 128-148 109.65 178.55
T01-03 05/09/2016 288.20 150 128-148 109.21 178.99
T01-03 08/22/2016 288.20 150 128-148 109.48 178.72
T01-03 11/28/2016 288.20 150 128-148 108.33 179.87
T01-03 03/06/2017 288.20 150 128-148 107.42 180.78
T01-03 05/22/2017 288.20 150 128-148 106.76 181.44
T01-03 06/19/2017 288.20 150 128-148 107.28 180.92
T01-03 08/28/2017 288.20 150 128-148 107.70 180.50
T01-03 12/11/2017 288.20 150 128-148 107.43 180.77
T01-03 02/12/2018 288.20 150 128-148 106.54 181.66
T01-03 05/21/2018 288.20 150 128-148 105.92 182.28
T01-03 07/30/2018 288.20 150 128-148 105.74 182.46
T01-03 10/16/2018 288.20 150 128-148 104.92 183.28
T01-03 01/07/2019 288.20 150 128-148 103.71 184.49
T01-03 04/22/2019 288.20 150 128-148 101.68 186.52
T01-03 07/15/2019 288.20 150 128-148 101.04 187.16
T01-03 11/04/2019 288.20 150 128-148 100.22 187.98
T01-03 06/15/2020 288.20 150 128-148 98.10 190.10
ERM 41 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T02-01 06/09/2008 287.23 155 135-150 105.81 181.42
T02-01 09/10/2008 287.23 155 135-150 108.73 178.50
T02-01 12/02/2008 287.23 155 135-150 107.10 180.13
T02-01 09/08/2009 287.23 155 135-150 105.50 181.73
T02-01 06/28/2010 287.23 155 135-150 104.58 182.65
T02-01 12/13/2010 287.23 155 135-150 106.32 180.91
T02-01 06/20/2011 287.23 155 135-150 101.60 185.63
T02-01 12/08/2011 287.23 155 135-150 102.28 184.95
T02-01 06/18/2012 287.23 155 135-150 99.93 187.30
T02-01 11/26/2012 287.23 155 135-150 103.35 183.88
T02-01 06/24/2013 287.23 155 135-150 104.40 182.83
T02-01 11/18/2013 287.23 155 135-150 106.02 181.21
T02-01 05/12/2014 287.23 155 135-150 107.15 180.08
T02-01 11/10/2014 287.23 155 135-150 107.69 179.54
T02-01 06/22/2015 287.22 155 135-150 108.51 178.71
T02-01 09/08/2015 287.22 155 135-150 109.09 178.13
T02-01 11/16/2015 287.22 155 135-150 109.67 177.55
T02-01 02/15/2016 287.22 155 135-150 109.04 178.18
T02-01 05/09/2016 287.22 155 135-150 108.68 178.54
T02-01 08/22/2016 287.22 155 135-150 108.80 178.42
T02-01 11/28/2016 287.22 155 135-150 107.50 179.72
T02-01 03/06/2017 287.22 155 135-150 106.65 180.57
T02-01 05/22/2017 287.22 155 135-150 106.00 181.22
T02-01 06/19/2017 287.22 155 135-150 106.69 180.53
T02-01 08/28/2017 287.22 155 135-150 106.73 180.49
T02-01 12/11/2017 287.22 155 135-150 106.71 180.51
T02-01 02/12/2018 287.22 155 135-150 -- --
T02-01 05/21/2018 287.22 155 135-150 104.87 182.35
T02-01 07/30/2018 287.22 155 135-150 -- --
T02-01 10/16/2018 287.22 155 135-150 -- --
T02-01 01/07/2019 287.22 155 135-150 102.75 184.47
T02-01 04/22/2019 287.22 155 135-150 100.91 186.31
T02-01 07/15/2019 287.22 155 135-150 100.17 187.05
T02-01 11/04/2019 287.22 155 135-150 99.14 188.08
T02-01 06/15/2020 287.22 155 135-150 97.28 189.94
T02-02 06/09/2008 290.05 160 135-150 109.06 180.99
T02-02 09/10/2008 290.05 160 135-150 111.05 179.00
T02-02 12/02/2008 290.05 160 135-150 109.20 180.85
T02-02 09/08/2009 290.05 160 135-150 108.35 181.70
T02-02 06/28/2010 290.05 160 135-150 106.76 183.29
T02-02 12/13/2010 290.05 160 135-150 108.72 181.33
T02-02 06/20/2011 290.05 160 135-150 104.74 185.31
T02-02 12/08/2011 290.05 160 135-150 105.41 184.64
ERM 42 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T02-02 06/18/2012 290.05 160 135-150 103.18 186.87
T02-02 11/26/2012 290.05 160 135-150 105.88 184.17
T02-02 06/24/2013 290.05 160 135-150 106.86 183.19
T02-02 11/18/2013 290.05 160 135-150 108.05 182.00
T02-02 05/12/2014 290.05 160 135-150 109.45 180.60
T02-02 11/10/2014 290.05 160 135-150 110.36 179.69
T02-02 06/22/2015 290.14 160 135-150 111.00 179.14
T02-02 09/08/2015 290.14 160 135-150 111.36 178.78
T02-02 11/16/2015 290.14 160 135-150 112.14 178.00
T02-02 02/15/2016 290.14 160 135-150 111.72 178.42
T02-02 05/09/2016 290.14 160 135-150 111.17 178.97
T02-02 08/22/2016 290.14 160 135-150 111.28 178.86
T02-02 11/28/2016 290.14 160 135-150 110.11 180.03
T02-02 03/06/2017 290.14 160 135-150 109.41 180.73
T02-02 05/22/2017 290.14 160 135-150 108.77 181.37
T02-02 06/19/2017 290.14 160 135-150 109.30 180.84
T02-02 08/28/2017 290.14 160 135-150 109.62 180.52
T02-02 12/11/2017 290.14 160 135-150 109.32 180.82
T02-02 02/12/2018 290.14 160 135-150 108.52 181.62
T02-02 05/21/2018 290.14 160 135-150 107.71 182.43
T02-02 07/30/2018 290.14 160 135-150 107.41 182.73
T02-02 10/16/2018 290.14 160 135-150 106.60 183.54
T02-02 01/07/2019 290.14 160 135-150 105.44 184.70
T02-02 04/22/2019 290.14 160 135-150 103.54 186.60
T02-02 07/15/2019 290.14 160 135-150 102.78 187.36
T02-02 11/04/2019 290.14 160 135-150 101.92 188.22
T02-02 06/15/2020 290.14 160 135-150 99.77 190.37
T02-02D 06/28/2010 290.17 188 178-188 107.05 183.12
T02-02D 12/13/2010 290.17 188 178-188 108.61 181.56
T02-02D 06/20/2011 290.17 188 178-188 104.74 185.43
T02-02D 12/08/2011 290.17 188 178-188 105.51 184.66
T02-02D 06/18/2012 290.17 188 178-188 104.23 185.94
T02-02D 11/26/2012 290.17 188 178-188 105.93 184.24
T02-02D 06/24/2013 290.17 188 178-188 106.83 183.34
T02-02D 11/18/2013 290.17 188 178-188 108.13 182.04
T02-02D 05/12/2014 290.17 188 178-188 109.55 180.62
T02-02D 11/10/2014 290.17 188 178-188 109.95 180.22
T02-02D 06/22/2015 290.15 188 178-188 111.10 179.05
T02-02D 09/08/2015 290.15 188 178-188 111.52 178.63
T02-02D 11/16/2015 290.15 188 178-188 111.82 178.33
T02-02D 02/15/2016 290.15 188 178-188 111.78 178.37
T02-02D 05/09/2016 290.15 188 178-188 111.32 178.83
T02-02D 08/22/2016 290.15 188 178-188 111.32 178.83
ERM 43 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T02-02D 11/28/2016 290.15 188 178-188 110.18 179.97
T02-02D 03/06/2017 290.15 188 178-188 109.33 180.82
T02-02D 05/22/2017 290.15 188 178-188 108.80 181.35
T02-02D 06/19/2017 290.15 188 178-188 107.30 182.85
T02-02D 08/28/2017 290.15 188 178-188 109.65 180.50
T02-02D 12/11/2017 290.15 188 178-188 109.42 180.73
T02-02D 02/12/2018 290.15 188 178-188 108.67 181.48
T02-02D 05/21/2018 290.15 188 178-188 107.74 182.41
T02-02D 07/30/2018 290.15 188 178-188 107.42 182.73
T02-02D 10/16/2018 290.15 188 178-188 106.56 183.59
T02-02D 01/07/2019 290.15 188 178-188 106.05 184.10
T02-02D 04/22/2019 290.15 188 178-188 103.58 186.57
T02-02D 07/15/2019 290.15 188 178-188 102.94 187.21
T02-02D 11/04/2019 290.15 188 178-188 101.80 188.35
T02-02D 06/15/2020 290.15 188 178-188 99.80 190.35
T02-03 09/10/2008 288.93 155 135-150 109.75 179.18
T02-03 12/02/2008 288.93 155 135-150 107.70 181.23
T02-03 09/08/2009 288.93 155 135-150 106.95 181.98
T02-03 06/28/2010 288.93 155 135-150 105.62 183.31
T02-03 12/13/2010 288.93 155 135-150 107.42 181.51
T02-03 06/20/2011 288.93 155 135-150 103.87 185.06
T02-03 12/08/2011 288.93 155 135-150 104.52 184.41
T02-03 06/18/2012 288.93 155 135-150 102.28 186.65
T02-03 11/26/2012 288.93 155 135-150 104.73 184.20
T02-03 06/24/2013 288.93 155 135-150 105.49 183.44
T02-03 11/18/2013 288.93 155 135-150 106.94 181.99
T02-03 05/12/2014 288.93 155 135-150 108.05 180.88
T02-03 11/10/2014 288.93 155 135-150 108.71 180.22
T02-03 06/22/2015 288.90 155 135-150 109.60 179.30
T02-03 09/08/2015 288.90 155 135-150 110.30 178.60
T02-03 11/16/2015 288.90 155 135-150 110.82 178.08
T02-03 02/15/2016 288.90 155 135-150 110.38 178.52
T02-03 05/09/2016 288.90 155 135-150 109.92 178.98
T02-03 08/22/2016 288.90 155 135-150 109.90 179.00
T02-03 11/28/2016 288.90 155 135-150 108.85 180.05
T02-03 03/06/2017 288.90 155 135-150 108.27 180.63
T02-03 05/22/2017 288.90 155 135-150 107.59 181.31
T02-03 06/19/2017 288.90 155 135-150 108.04 180.86
T02-03 08/28/2017 288.90 155 135-150 108.52 180.38
T02-03 12/11/2017 288.90 155 135-150 108.24 180.66
T02-03 02/12/2018 288.90 155 135-150 107.40 181.50
T02-03 05/21/2018 288.90 155 135-150 106.54 182.36
T02-03 07/30/2018 288.90 155 135-150 106.20 182.70
ERM 44 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
T02-03 10/16/2018 288.90 155 135-150 106.56 182.34
T02-03 01/07/2019 288.90 155 135-150 104.21 184.69
T02-03 04/22/2019 288.90 155 135-150 102.38 186.52
T02-03 07/15/2019 288.90 155 135-150 101.51 187.39
T02-03 11/04/2019 288.90 155 135-150 100.57 188.33
T02-03 06/15/2020 288.90 155 135-150 98.42 190.48
T03-01D 06/28/2010 286.16 185 160-170 105.83 180.33
T03-01D 12/13/2010 286.16 185 160-170 105.40 180.76
T03-01D 06/20/2011 286.16 185 160-170 101.60 184.56
T03-01D 12/08/2011 286.16 185 160-170 102.24 183.92
T03-01D 06/18/2012 286.16 185 160-170 99.65 186.51
T03-01D 11/26/2012 286.16 185 160-170 102.52 183.64
T03-01D 06/24/2013 286.16 185 160-170 102.83 183.33
T03-01D 11/18/2013 286.16 185 160-170 104.60 181.56
T03-01D 05/12/2014 286.16 185 160-170 105.59 180.57
T03-01D 11/10/2014 286.16 185 160-170 106.73 179.43
T03-01D 06/22/2015 286.20 185 160-170 107.17 179.03
T03-01D 09/08/2015 286.20 185 160-170 107.68 178.52
T03-01D 11/16/2015 286.20 185 160-170 108.52 177.68
T03-01D 02/15/2016 286.20 185 160-170 107.90 178.30
T03-01D 05/09/2016 286.20 185 160-170 105.31 180.89
T03-01D 08/22/2016 286.20 185 160-170 107.19 179.01
T03-01D 11/28/2016 286.20 185 160-170 106.08 180.12
T03-01D 03/06/2017 286.20 185 160-170 106.71 179.49
T03-01D 05/22/2017 286.20 185 160-170 105.11 181.09
T03-01D 06/19/2017 286.20 185 160-170 105.60 180.60
T03-01D 08/28/2017 286.20 185 160-170 105.95 180.25
T03-01D 12/11/2017 286.20 185 160-170 105.74 180.46
T03-01D 02/12/2018 286.20 185 160-170 104.90 181.30
T03-01D 05/21/2018 286.20 185 160-170 105.84 180.36
T03-01D 07/30/2018 286.20 185 160-170 103.41 182.79
T03-01D 10/16/2018 286.20 185 160-170 105.35 180.85
T03-01D 01/07/2019 286.20 185 160-170 101.56 184.64
T03-01D 04/22/2019 286.20 185 160-170 99.63 186.57
T03-01D 07/15/2019 286.20 185 160-170 98.79 187.41
T03-01D 11/04/2019 286.20 185 160-170 97.70 188.50
T03-01D 06/15/2020 286.20 185 160-170 95.71 190.49
VW-01A 09/10/2008 287.93 150 90-125 79.40 208.53
VW-01A 12/02/2008 287.93 150 90-125 -- --
VW-01A 09/08/2009 287.93 150 90-125 -- --
VW-01B 09/10/2008 287.93 150 90-125 109.02 178.91
VW-01B 12/02/2008 287.93 150 90-125 107.29 180.64
VW-01B 09/08/2009 287.93 150 90-125 106.20 181.73
VW-01B 06/28/2010 287.93 150 90-125 103.91 184.02
VW-01B 12/13/2010 287.93 150 90-125 106.88 181.05
ERM 45 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-01B 06/20/2011 287.93 150 90-125 101.68 186.25
VW-01B 10/17/2011 287.93 150 90-125 103.32 184.61
VW-01B 06/18/2012 287.93 150 90-125 100.60 187.33
VW-01B 11/26/2012 287.93 150 90-125 103.54 184.39
VW-01B 06/24/2013 287.93 150 90-125 105.23 182.70
VW-01B 11/18/2013 287.93 150 90-125 106.38 181.55
VW-01B 05/12/2014 287.93 150 90-125 108.32 179.61
VW-01B 11/10/2014 287.93 150 90-125 108.48 179.45
VW-01B 04/21/2015 288.27 150 90-125 110.08 178.19
VW-01B 06/22/2015 288.27 150 90-125 108.95 179.32
VW-01B 09/08/2015 288.27 150 90-125 109.80 178.47
VW-01B 11/16/2015 288.27 150 90-125 110.30 177.97
VW-01B 02/15/2016 288.27 150 90-125 109.75 178.52
VW-01B 05/09/2016 288.27 150 90-125 109.42 178.85
VW-01B 08/22/2016 288.27 150 90-125 92.60 195.67
VW-01B 11/28/2016 288.27 150 90-125 107.40 180.87
VW-01B 03/06/2017 288.27 150 90-125 107.27 181.00
VW-01B 05/22/2017 288.27 150 90-125 106.70 181.57
VW-01B 06/19/2017 288.27 150 90-125 107.22 181.05
VW-01B 08/28/2017 288.27 150 90-125 107.29 180.98
VW-01B 12/11/2017 288.27 150 90-125 107.50 180.77
VW-01B 02/12/2018 288.27 150 90-125 106.41 181.86
VW-01B 05/21/2018 288.27 150 90-125 105.72 182.55
VW-01B 07/30/2018 288.27 150 90-125 103.90 184.37
VW-01B 10/16/2018 288.27 150 90-125 104.71 183.56
VW-01B 01/07/2019 288.27 150 90-125 103.62 184.65
VW-01B 04/23/2019 288.27 150 90-125 101.59 186.68
VW-01B 07/15/2019 288.27 150 90-125 101.16 187.11
VW-01B 11/04/2019 288.27 150 90-125 100.38 187.89
VW-01B 06/15/2020 288.27 150 90-125 98.47 189.80
VW-02A 09/10/2008 287.34 150 90-125 79.35 207.99
VW-02A 12/02/2008 287.34 150 90-125 -- --
VW-02A 09/08/2009 287.34 150 90-125 -- --
VW-02B 09/10/2008 287.28 150 90-125 108.36 178.92
VW-02B 12/02/2008 287.28 150 90-125 106.69 180.59
VW-02B 09/08/2009 287.28 150 90-125 106.30 180.98
VW-02B 06/28/2010 287.28 150 90-125 103.53 183.75
VW-02B 12/13/2010 287.28 150 90-125 105.30 181.98
VW-02B 06/20/2011 287.28 150 90-125 100.90 186.38
VW-02B 10/17/2011 287.28 150 90-125 102.83 184.45
VW-02B 06/18/2012 287.28 150 90-125 99.80 187.48
VW-02B 11/26/2012 287.28 150 90-125 102.71 184.57
VW-02B 06/24/2013 287.28 150 90-125 104.68 182.60
VW-02B 11/18/2013 287.28 150 90-125 105.92 181.36
VW-02B 05/12/2014 287.28 150 90-125 107.60 179.68
ERM 46 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-02B 11/10/2014 287.28 150 90-125 108.03 179.25
VW-02B 04/21/2015 287.86 150 90-125 109.83 178.03
VW-02B 06/22/2015 287.86 150 90-125 108.41 179.45
VW-02B 09/08/2015 287.86 150 90-125 109.18 178.68
VW-02B 11/16/2015 287.86 150 90-125 109.65 178.21
VW-02B 02/15/2016 287.86 150 90-125 109.10 178.76
VW-02B 05/09/2016 287.86 150 90-125 108.76 179.10
VW-02B 08/22/2016 287.86 150 90-125 109.56 178.30
VW-02B 11/28/2016 287.86 150 90-125 107.76 180.10
VW-02B 03/06/2017 287.86 150 90-125 106.55 181.31
VW-02B 05/22/2017 287.86 150 90-125 106.00 181.86
VW-02B 06/19/2017 287.86 150 90-125 106.50 181.36
VW-02B 08/28/2017 287.86 150 90-125 106.63 181.23
VW-02B 12/11/2017 287.86 150 90-125 106.93 180.93
VW-02B 02/12/2018 287.86 150 90-125 106.90 180.96
VW-02B 05/21/2018 287.86 150 90-125 105.12 182.74
VW-02B 07/30/2018 287.86 150 90-125 105.12 182.74
VW-02B 10/16/2018 287.86 150 90-125 104.24 183.62
VW-02B 01/07/2019 287.86 150 90-125 103.16 184.70
VW-02B 04/22/2019 287.86 150 90-125 100.89 186.97
VW-02B 07/15/2019 287.86 150 90-125 100.56 187.30
VW-02B 11/04/2019 287.86 150 90-125 99.61 188.25
VW-02B 06/15/2020 287.86 150 90-125 97.99 189.87
VW-03A 09/10/2008 287.52 150 90-125 80.20 207.32
VW-03A 12/02/2008 287.52 150 90-125 -- --
VW-03A 09/08/2009 287.52 150 90-125 -- --
VW-03B 09/10/2008 287.41 150 90-125 108.49 178.92
VW-03B 12/02/2008 287.41 150 90-125 106.96 180.45
VW-03B 09/08/2009 287.41 150 90-125 105.60 181.81
VW-03B 06/28/2010 287.41 150 90-125 102.60 184.81
VW-03B 12/13/2010 287.41 150 90-125 104.77 182.64
VW-03B 06/20/2011 287.41 150 90-125 100.58 186.83
VW-03B 10/17/2011 287.41 150 90-125 102.49 184.92
VW-03B 06/18/2012 287.41 150 90-125 99.21 188.20
VW-03B 11/26/2012 287.41 150 90-125 102.53 184.88
VW-03B 06/24/2013 287.41 150 90-125 104.25 183.16
VW-03B 11/18/2013 287.41 150 90-125 105.26 182.15
VW-03B 05/12/2014 287.41 150 90-125 107.19 180.22
VW-03B 11/10/2014 287.41 150 90-125 107.72 179.69
VW-03B 06/22/2015 287.40 150 90-125 108.30 179.10
VW-03B 09/08/2015 287.40 150 90-125 109.02 178.38
VW-03B 11/16/2015 287.40 150 90-125 109.49 177.91
VW-03B 02/15/2016 287.40 150 90-125 109.00 178.40
VW-03B 05/09/2016 287.40 150 90-125 108.61 178.79
VW-03B 08/22/2016 287.40 150 90-125 108.92 178.48
ERM 47 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-03B 11/28/2016 287.40 150 90-125 107.63 179.77
VW-03B 03/06/2017 287.40 150 90-125 106.39 181.01
VW-03B 05/22/2017 287.40 150 90-125 105.88 181.52
VW-03B 06/19/2017 287.40 150 90-125 106.46 180.94
VW-03B 08/28/2017 287.40 150 90-125 106.60 180.80
VW-03B 12/11/2017 287.40 150 90-125 106.80 180.60
VW-03B 02/12/2018 287.40 150 90-125 105.33 182.07
VW-03B 05/21/2018 287.40 150 90-125 105.00 182.40
VW-03B 07/30/2018 287.40 150 90-125 102.33 185.07
VW-03B 10/16/2018 287.40 150 90-125 103.96 183.44
VW-03B 01/07/2019 287.40 150 90-125 102.99 184.41
VW-03B 04/22/2019 287.40 150 90-125 101.04 186.36
VW-03B 07/15/2019 287.40 150 90-125 100.48 186.92
VW-03B 11/04/2019 287.40 150 90-125 99.67 187.73
VW-03B 06/15/2020 287.40 150 90-125 97.80 189.60
VW-04A 09/10/2008 287.02 150 90-125 -- --
VW-04A 12/02/2008 287.02 150 90-125 -- --
VW-04A 09/08/2009 287.02 150 90-125 -- --
VW-04B 09/10/2008 286.91 150 90-125 108.15 178.76
VW-04B 12/02/2008 286.91 150 90-125 106.24 180.67
VW-04B 09/08/2009 286.91 150 90-125 105.50 181.41
VW-04B 06/28/2010 286.91 150 90-125 103.12 183.79
VW-04B 12/13/2010 286.91 150 90-125 105.10 181.81
VW-04B 06/20/2011 286.91 150 90-125 100.65 186.26
VW-04B 10/17/2011 286.91 150 90-125 102.56 184.35
VW-04B 06/18/2012 286.91 150 90-125 99.57 187.34
VW-04B 11/26/2012 286.91 150 90-125 102.59 184.32
VW-04B 06/24/2013 286.91 150 90-125 104.32 182.59
VW-04B 11/18/2013 286.91 150 90-125 105.28 181.63
VW-04B 05/12/2014 286.91 150 90-125 107.12 179.79
VW-04B 11/10/2014 286.91 150 90-125 107.69 179.22
VW-04B 04/21/2015 287.35 150 90-125 109.32 178.03
VW-04B 06/22/2015 287.35 150 90-125 108.31 179.04
VW-04B 09/08/2015 287.35 150 90-125 108.96 178.39
VW-04B 11/16/2015 287.35 150 90-125 109.48 177.87
VW-04B 02/15/2016 287.35 150 90-125 108.86 178.49
VW-04B 05/09/2016 287.35 150 90-125 108.47 178.88
VW-04B 08/22/2016 287.35 150 90-125 108.85 178.50
VW-04B 11/28/2016 287.35 150 90-125 107.54 179.81
VW-04B 03/06/2017 287.35 150 90-125 106.30 181.05
VW-04B 05/22/2017 287.35 150 90-125 105.77 181.58
VW-04B 06/19/2017 287.35 150 90-125 106.38 180.97
VW-04B 08/28/2017 287.35 150 90-125 106.45 180.90
VW-04B 12/11/2017 287.35 150 90-125 106.53 180.82
VW-04B 02/12/2018 287.35 150 90-125 105.47 181.88
ERM 48 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-04B 05/21/2018 287.35 150 90-125 105.04 182.31
VW-04B 07/30/2018 287.35 150 90-125 104.68 182.67
VW-04B 10/16/2018 287.35 150 90-125 104.03 183.32
VW-04B 01/07/2019 287.35 150 90-125 102.71 184.64
VW-04B 04/22/2019 287.35 150 90-125 100.18 187.17
VW-04B 07/15/2019 287.35 150 90-125 100.23 187.12
VW-04B 11/04/2019 287.35 150 90-125 99.01 188.34
VW-04B 06/15/2020 287.35 150 90-125 97.56 189.79
VW-05 06/28/2010 286.87 150 90-125 103.24 183.63
VW-05 12/13/2010 286.87 150 90-125 105.40 181.47
VW-05 06/20/2011 286.87 150 90-125 100.64 186.23
VW-05 12/08/2011 286.87 150 90-125 101.41 185.46
VW-05 06/18/2012 286.87 150 90-125 99.60 187.27
VW-05 11/26/2012 286.87 150 90-125 102.65 184.22
VW-05 06/24/2013 286.87 150 90-125 104.34 182.53
VW-05 11/18/2013 286.87 150 90-125 105.58 181.29
VW-05 05/12/2014 286.87 150 90-125 107.12 179.75
VW-05 11/10/2014 286.87 150 90-125 107.60 179.27
VW-05 04/21/2015 287.23 150 90-125 109.32 177.91
VW-05 06/22/2015 287.23 150 90-125 108.22 179.01
VW-05 09/08/2015 287.23 150 90-125 108.86 178.37
VW-05 11/16/2015 287.23 150 90-125 109.48 177.75
VW-05 02/15/2016 287.23 150 90-125 108.88 178.35
VW-05 05/09/2016 287.23 150 90-125 108.49 178.74
VW-05 08/22/2016 287.23 150 90-125 108.91 178.32
VW-05 11/28/2016 287.23 150 90-125 107.52 179.71
VW-05 03/06/2017 287.23 150 90-125 106.40 180.83
VW-05 05/22/2017 287.23 150 90-125 105.78 181.45
VW-05 06/19/2017 287.23 150 90-125 106.58 180.65
VW-05 08/28/2017 287.23 150 90-125 106.43 180.80
VW-05 12/11/2017 287.23 150 90-125 106.57 180.66
VW-05 02/12/2018 287.23 150 90-125 105.52 181.71
VW-05 05/21/2018 287.23 150 90-125 105.90 181.33
VW-05 07/30/2018 287.23 150 90-125 104.65 182.58
VW-05 10/16/2018 287.23 150 90-125 104.00 183.23
VW-05 01/07/2019 287.23 150 90-125 102.76 184.47
VW-05 04/22/2019 287.23 150 90-125 100.09 187.14
VW-05 07/15/2019 287.23 150 90-125 100.20 187.03
VW-05 11/04/2019 287.23 150 90-125 99.39 187.84
VW-05 06/15/2020 287.23 150 90-125 97.38 189.85
VW-06 06/28/2010 286.92 150 90-125 103.38 183.54
VW-06 12/13/2010 286.92 150 90-125 105.56 181.36
VW-06 06/20/2011 286.92 150 90-125 100.72 186.20
VW-06 12/08/2011 286.92 150 90-125 101.50 185.42
VW-06 06/18/2012 286.92 150 90-125 99.59 187.33
ERM 49 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-06 11/26/2012 286.92 150 90-125 102.80 184.12
VW-06 06/24/2013 286.92 150 90-125 104.40 182.52
VW-06 11/18/2013 286.92 150 90-125 105.68 181.24
VW-06 05/12/2014 286.92 150 90-125 107.20 179.72
VW-06 11/10/2014 286.92 150 90-125 107.63 179.29
VW-06 04/21/2015 287.37 150 90-125 109.42 177.95
VW-06 06/22/2015 287.37 150 90-125 108.28 179.09
VW-06 09/08/2015 287.37 150 90-125 108.93 178.44
VW-06 11/16/2015 287.37 150 90-125 109.50 177.87
VW-06 02/15/2016 287.37 150 90-125 108.90 178.47
VW-06 05/09/2016 287.37 150 90-125 108.54 178.83
VW-06 08/22/2016 287.37 150 90-125 109.00 178.37
VW-06 11/28/2016 287.37 150 90-125 107.56 179.81
VW-06 03/06/2017 287.37 150 90-125 106.48 180.89
VW-06 05/22/2017 287.37 150 90-125 105.90 181.47
VW-06 06/19/2017 287.37 150 90-125 106.53 180.84
VW-06 08/28/2017 287.37 150 90-125 106.52 180.85
VW-06 12/11/2017 287.37 150 90-125 106.68 180.69
VW-06 02/12/2018 287.37 150 90-125 105.24 182.13
VW-06 05/21/2018 287.37 150 90-125 104.98 182.39
VW-06 07/30/2018 287.37 150 90-125 104.74 182.63
VW-06 10/16/2018 287.37 150 90-125 104.05 183.32
VW-06 01/07/2019 287.37 150 90-125 102.84 184.53
VW-06 04/22/2019 287.37 150 90-125 100.93 186.44
VW-06 07/15/2019 287.37 150 90-125 100.28 187.09
VW-06 11/04/2019 287.37 150 90-125 99.43 187.94
VW-06 06/15/2020 287.37 150 90-125 97.50 189.87
VW-07 06/28/2010 286.89 150 90-125 103.95 182.94
VW-07 12/13/2010 286.89 150 90-125 105.70 181.19
VW-07 06/20/2011 286.89 150 90-125 100.72 186.17
VW-07 12/08/2011 286.89 150 90-125 101.54 185.35
VW-07 06/18/2012 286.89 150 90-125 99.55 187.34
VW-07 11/26/2012 286.89 150 90-125 102.80 184.09
VW-07 06/24/2013 286.89 150 90-125 104.33 182.56
VW-07 11/18/2013 286.89 150 90-125 105.72 181.17
VW-07 05/12/2014 286.89 150 90-125 107.19 179.70
VW-07 11/10/2014 286.89 150 90-125 107.69 179.20
VW-07 04/21/2015 287.23 150 90-125 109.47 177.76
VW-07 06/22/2015 287.23 150 90-125 108.27 178.96
VW-07 09/08/2015 287.23 150 90-125 108.90 178.33
VW-07 11/16/2015 287.23 150 90-125 109.50 177.73
VW-07 02/15/2016 287.23 150 90-125 108.94 178.29
VW-07 05/09/2016 287.23 150 90-125 108.49 178.74
VW-07 08/22/2016 287.23 150 90-125 109.14 178.09
VW-07 11/28/2016 287.23 150 90-125 107.71 179.52
ERM 50 of 51 UNIVAR/0577677 - July 2021
Appendix A
Historical Groundwater Elevation Data
Former Van Waters & Rogers Inc. Facility
1152 G Street
Fresno, California
Measuring Construction Screen Depth to Water
Point Elevation Depth Interval Groundwater Elevation
(ft amsl) (ft bgs) (ft bgs) (ft btoc) (ft amsl)
Well Date
VW-07 03/06/2017 287.23 150 90-125 106.61 180.62
VW-07 05/22/2017 287.23 150 90-125 106.00 181.23
VW-07 06/19/2017 287.23 150 90-125 106.72 180.51
VW-07 08/28/2017 287.23 150 90-125 106.78 180.45
VW-07 12/11/2017 287.23 150 90-125 106.64 180.59
VW-07 02/12/2018 287.23 150 90-125 107.72 179.51
VW-07 05/21/2018 287.23 150 90-125 105.05 182.18
VW-07 07/30/2018 287.23 150 90-125 104.87 182.40
VW-07 10/16/2018 287.23 150 90-125 104.11 183.12
VW-07 01/07/2019 287.23 150 90-125 102.80 184.43
VW-07 04/22/2019 287.23 150 90-125 100.83 186.40
VW-07 07/15/2019 287.23 150 90-125 100.19 187.04
VW-07 11/04/2019 287.23 150 90-125 99.31 187.92
VW-07 06/15/2020 287.23 150 90-125 97.40 189.83
Notes:
* = Total depth of well measured on 18 November 2013
-- = not measured
dry = No groundwater detected in well
ft amsl = Feet above mean sea level
ft bgs = Feet below ground surface
ft btoc = Feet below top of casing
ERM 51 of 51 UNIVAR/0577677 - July 2021

Prepared for:

Prepared by :

4186 W. Swift Avenue, Suite 107
(559) 438 - 8411

SUPPLEMENTAL REMEDIAL INVESTIGATION

QUARTERLY MONITORING REPORT
California High Speed Train
FB-10-0121 (APN 465-040-21S)
Lamoure’s Cleaners
Fresno, California
March 2020

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

TABLE OF CONTENTS
1 INTRODUCTION ...........................................................................................................................1

1.1 Purpose and Objective ................................................................................................................ 1

1.2 Report Organization .................................................................................................................... 2 2 PROJECT DESCRIPTION .................................................................................................................2

2.1 Site Location and Description ...................................................................................................... 2

2.2 Proposed High Speed Train Development and Timing ................................................................ 2

2.3 Geology and Hydrogeology ......................................................................................................... 2

2.3.1 Geology ............................................................................................................................... 2

2.3.2 Hydrogeology ...................................................................................................................... 2

2.4 Site Chronology ........................................................................................................................... 3

2.4.1 Univar .................................................................................................................................. 3

2.4.2 Lamoure’s Dry Cleaner ........................................................................................................ 3

2.5 Soil Vapor Well SV-1 through SV-13 Quarter 3 Sampling and Analysis ....................................... 5

2.5.1 Sampling Method ................................................................................................................ 5

2.5.2 Soil Gas Analytical Results................................................................................................... 6

2.6 Groundwater Well WM-1 Quarter 3 Sampling and Analysis ....................................................... 7

2.6.1 Sampling Methodology ....................................................................................................... 7

2.6.2 Groundwater Analytical Results ......................................................................................... 7 3 SUMMARY AND EVALUATION ......................................................................................................8

3.1 Soil Gas ........................................................................................................................................ 8

3.1.1 Assessment ......................................................................................................................... 8

3.1.2 Quality Control .................................................................................................................. 10

3.2 Groundwater ............................................................................................................................. 11

3.2.1 Assessment ....................................................................................................................... 11

3.2.2 Quality Control .................................................................................................................. 11 4 CONCLUSIONS ........................................................................................................................... 12 5 RECOMMENDATIONS ................................................................................................................. 13 6 LIMITATIONS ............................................................................................................................. 13

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

TABLE OF CONTENTS (Cont.)

FIGURES
Figure 1: Vicinity Map
Figure 2: Site Plan
Figure 3: Soil Gas and Groundwater Monitoring Well Locations Figure 4: PCE in Soil Gas
Figure 5: PCE in Soil Gas Analysis

TABLES
Table 1: RCC Soil Gas and Soil Sample Results Summary (Detected Compounds) Table 2: April 2018 Soil Gas Analysis Results (Detected Compounds) Table 3: May 2019 Soil Gas Analysis Results (Detected Compounds) Table 4: 2019 October/November Soil Gas Analysis Results (Detected Compounds) Table 5: 2020 January Soil Gas Analysis Results (Detected Compounds) Table 6: Groundwater Sample Analytical Results

APPENDIX A
Sampling Logs

APPENDIX B
Laboratory Analysis Reports and Chain of Custody Documents

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

1 1 INTRODUCTION
In accordance with California High Speed Train (CHST) Task Order No. BC-17070-9.03, Blackburn Consulting (Blackburn) prepared this Quarterly Monitoring Report (Report) to monitor tetrachloroethylene (PCE) levels in soil gas and groundwater at parcels FB-10-10-0121-1 and FB-10- 0121-01-01 (collectively referred to as FB-10-0121 in this document or as “Site”). FB-10-0121 is located at 1304 G Street and identified by Assessor Parcel Number (APN) 465-040-21S, in Fresno, California.

The California High Speed Rail Authority (Authority) acquired parcel FB-10-0121 for development as part of the Fresno-to-Bakersfield segment of the CHST corridor in Fresno, California. Figure 1 indicates the site location. This report documents the third quarterly sampling of groundwater monitoring well MW-1 and soil vapor wells SV-1 through SV-11, and second quarterly sampling of soil vapor wells SV-12 and SV-

13. Blackburn sampled all wells between January 27 and January 29, 2020. All work was completed as described in the November 15, 2018 Supplemental Remedial Investigation Workplan (Workplan) approved by the Central Valley Regional Water Quality Control Board (Water Board) in a letter dated December 6, 2018.

1.1 Purpose and Objective
Blackburn previously completed a remedial investigation (RI) at FB-10-0121 in June 2018 (Blackburn, Remedial Investigation Report, California High Speed Train, FB-10-0121, dated June 21, 2018). The 2018 investigation concluded elevated concentrations of PCE in soil gas exist beneath and in the vicinity of a former dry-cleaning business operated by Lamoure’s Dry Cleaners at FB-10-0121. Elevated concentrations of PCE extend from near surface to approximately 90 feet below ground surface (bgs).

The upgradient Univar, USA Inc. (Univar) facility also released PCE and other volatile organic compounds (VOCs) to groundwater. Blackburn’s findings indicate that an on-site historical release of PCE may have also impacted groundwater beneath the subject parcel.

Based on the findings of the 2018 RI, the Water Board instructed Blackburn to conduct a Supplemental RI. The objective of the Supplemental RI was to install and sample four off-site soil vapor monitoring wells and complete groundwater and soil vapor quarterly sampling events for a minimum of one year.

Blackburn constructed and sampled two off-site wells, (SV-10 and SV-11) in May 2019. An initial 2019 Supplemental RI report to the Water Board documented well installation and the first quarterly monitoring of SV-10 and SV-11 (Blackburn, Supplemental Remedial Investigation, California High Speed Train FB-10-0121, dated September 9, 2019).

The approval process for access agreements delayed the installation of SV-12 and SV-13 until November 2019, when Blackburn constructed and sampled two additional off-site wells (SV-12 and SV-13). A subsequent Supplemental RI report to the Water Board documented well installation and the first quarterly monitoring of SV-12 and SV-13 and second quarterly sampling for SV-10 and SV-11, and third quarterly sampling for SV-1 through SV-9. (Blackburn, Supplemental Remedial Investigation and Quarterly Monitoring Report, California High Speed Train FB-10-0-121, dated December 17, 2019).

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

2 1.2 Report Organization
This document presents field and laboratory analytical data from the January 2020 sampling of groundwater (MW-1) and soil vapor wells (SV-1 through SV-13). The document also provides conclusions and recommendations related to the need for additional investigation and remedial action.

2 PROJECT DESCRIPTION

2.1 Site Location and Description
Parcel FB-10-0121 resides in the northeast ¼ of Section 9, Township 14 South, Range 20 East, Mount Diablo Base and Meridian in Fresno, California. A masonry-block structure occupied this rectangle- shaped parcel until recently. The former structure’s Portland cement slab-on-grade and surrounding asphalt-paved parking areas remain on the parcel. The former building housed a commercial laundry plant operated by Lamoure’s Dry Cleaners. Vacant land bounds the parcel to the northwest and southeast. G Street fronts it to the southwest, and the Southern Pacific Rail alignment forms the northeast boundary. Figure 2 shows the project parcel location and APN parcel boundaries.

2.2 Proposed High Speed Train Development and Timing
The CHST proposes to develop the north half of the subject parcel with at-grade rail guideway facilities.

CHST will ultimately uncover the surface of the parcel and demolish pavement outside of the guideway facilities. The on-site slab and paving may remain pending abatement of elevated VOC concentrations in shallow soil. The south half of the parcel will serve as a drainage basin to store and infiltrate the runoff between the HST corridor and G Street. The basin’s design accommodates six inches of rainfall.

Construction is anticipated to begin in approximately one year.

2.3 Geology and Hydrogeology

2.3.1 Geology
Several parties have studied nearby geology, including Environmental Resources Management (ERM), and Nichols Consulting Engineers (Nichols), who prepared cross-sections and fence diagrams. Blackburn consulted those data in defining the scope of work for this investigation. According to Nichols, shallow stratigraphy consists of alternating layers of silts, clays and sands with no substantial laterally continuous clay units present. Two laterally continuous clay units, approximately 36 feet to 77 feet thick were logged between City of Fresno Wells 9A and 22A in the interval between approximately 176 feet bgs, and 410 feet bgs. The two clay units are separated by approximately 60 feet to 90 feet of alternating layers of sands, silts and clays.

2.3.2 Hydrogeology
Blackburn reviewed groundwater elevation maps made available online (www.water.ca.gov/groundwater) by the California Department of Water Resources (DWR, 2017).

These maps indicate that groundwater in the site vicinity is approximately 100 feet below ground surface (bgs). Groundwater flows regionally to the southwest, but water supply wells may influence local flow directions.

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

3 The Fourth Quarter 2019 and Annual Groundwater Monitoring Report1 for the Former Van Waters & Rogers Inc. prepared by ERM for Univar, provides site-specific groundwater depth and parameters nearby. This report noted that groundwater monitoring activities included depth-to-water measurements at 60 wells and groundwater sampling at 43 wells as defined in Univar’s monitoring and reporting program (MRP). Wells sampled included first encountered water as well as deeper water- bearing zones. First-encountered water was measured at a depth of 98.08 feet below top of casing (ft btoc) in MW-17S, and 98.12 ft btoc in MW-17D, which are located adjacent, southwest of the Lamoure’s parcel. ERM’s report described the shallow groundwater flow direction as generally to the west- northwest (generally towards the Site) and south in the deeper zone. Vertical gradients ranged from -

0.0012 to +0.0077, with positive values meaning downward direction. The gradient at the MW-17S/MW- 17D pair was +0.0011. ERM noted that the difference between shallow and deep groundwater elevations at shallow/deep well pairs is generally very small without any apparent seasonal trend in vertical gradients. Referenced monitoring well locations appear on Figure 3.

Previous Univar-related groundwater studies indicate that first-encountered groundwater and deeper water-bearing zones in the area appear to exist in unconfined conditions.

2.4 Site Chronology

2.4.1 Univar
Van Waters & Rogers, Inc formerly operated a facility at 1152 G Street in Fresno, California, approximately 500 feet southeast of the subject parcel. The company later adopted the name Univar, Inc. The facility stored PCE in an above-ground storage tank (AST) from about 1965 to 1987. PCE first appeared in soil samples collected from soil borings near the former PCE AST in 1994. Subsequent soil gas and soil investigations indicated PCE concentrations in most soil samples collected to a maximum concentration of 14 mg/kg. Several subsequent investigations included exploratory borings for collection of grab-groundwater samples and groundwater well installations.

Groundwater monitoring activities associated with the Univar site have occurred since 1996. To date, over 50 groundwater monitoring wells have been installed to monitor shallow groundwater and deeper groundwater-bearing zones. The monitoring wells extend from the former AST area at the Univar facility to north, east and west of the subject parcel and encompass FB-10-0-121.

2.4.2 Lamoure’s Dry Cleaner
The Water Board issued a Cleanup and Abatement Order (CAO) to Lamoure’s Inc. on October 7, 2011.

The CAO required preparation of a work plan for assessment and cleanup of soil and/or groundwater impacted by PCE and other volatile organic constituents which may have been released from the subject parcel.

1 Accessed at
https://geotracker.waterboards.ca.gov/getfile?filename=/esi/uploads/geo_report/3685045719/SL185704255.PDF on March 4, 2020.

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4 2.4.2.1 2015 Soil Gas Investigation – RCC Group, LLC
Subsequent to issuance of the CAO, RCC prepared a Work Plan for soil gas assessment on January 9, 2015 (amended based on Water Board comments) and installed and sampled four nested soil gas wells in June 2015. Each nest including three completion zones with completion depths at 10.5 feet, 30.5 feet, and 45.5 feet bgs. Each completion used ¼-inch diameter Teflon™ tubing with the bottom end connected to a soil gas probe tip. RCC soil gas well locations are indicated on Figure 3. Table 1 summarizes the RCC soil gas and soil sample data.

The Water Board issued a letter to the Authority on December 22, 2017 stating that the June 2015 investigation by RCC indicated a significant source of PCE on the site, in the vicinity of the former dry- cleaning machine, and along the sewer line. The Water Board stated that additional assessment was necessary to delineate the lateral and vertical extent of soil gas degradation so that a remedial option for cleanup of soil can be designed and implemented.

2.4.2.2 2018 Remedial Investigation (RI) - Blackburn
Blackburn submitted a work plan to address the Water Board’s concerns on February 16, 2018, and subsequently completed the Remedial Investigation (RI) in June 2018. The RI included installation of one groundwater monitoring well (MW-1) to 123 feet bgs, installation of five nested soil vapor wells (SV-5, SV-6, SV-7, SV-8, and SV-9) to depths of up to 90.4 feet bgs, sampling of existing soil gas wells (SV-1 through SV-4), and sampling of newly installed soil gas wells (SV-5 through SV-9) and the groundwater monitoring well (MW-1). Soil gas well locations (SV-5 through SV-9) and groundwater well (MW-1) appear on Figure 3.

The RI report concluded that elevated PCE concentrations from near surface to approximately 90 feet bgs exceed DTSC commercial screening levels (DTSC-SLs) by up to five orders of magnitude and an on- site historical release of PCE appears to have likely impacted underlying groundwater. Table 2 summarizes the 2018 RI soil gas sampling data.

2.4.2.3 April/May 2019 Supplemental Remedial Investigation (SRI) - Blackburn After Water Board review and comment on the RI, Blackburn submitted a Supplemental Remedial Investigation Workplan (California High Speed Train, FB-10-0121, Supplemental Remedial Investigation Workplan, November 2018) to the Water Board. The Supplemental Remedial Investigation Work Plan (Work Plan) proposed installation of four off-site soil vapor wells with up to five completion zones to a depth of 90 feet bgs. Figure 3 shows the locations of the four wells (SV-10 through SV-13).

On May 7, 2019, Blackburn installed two off-site nested soil gas wells (SV-10 and SV-11). The following sampling intervals were completed by well cluster location:
• SV-10: Completed in four discrete zones with probes screened to depths of 12.0 feet bgs, 29.0 feet bgs, and 55.0 feet bgs (inside one well vault), and 69.5 feet bgs (inside a second vault). • SV-11: Completed in four discrete zones with probes screened to depths of 16.0 feet bgs, 29.0 feet bgs, 59.0 feet bgs, and 70.0 feet bgs, all within a single vault.

Blackburn collected thirty-nine (39) samples including one field duplicate from soil vapor wells SV-1 through SV-11 between April 29 and May 14, 2019. Table 3 summarizes the April/May 2019 soil gas sample data.

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5 PCE concentrations at off-site locations (SV-10 and SV-11) to the northwest and southeast are significantly lower than concentrations located on FB-10-0121; indicating a source of PCE in the upper half of the vadose zone from the former dry-cleaning operations at FB-10-0121. The off-site concentrations are consistently lower through all depth intervals when compared to on-site concentrations. PCE vapors in the lower half of the vadose zone appear to have originated from the upper half of the vadose zone as well as the groundwater plume emanating from the Univar site.

Additional constituents (acetone, carbon disulfide, hexane, 1,3-dichlorbenzene, 1,4-dichlorobenzene, trans-1,2-dichloroethene, and toluene) were detected in SV-10 and SV-11 primarily between 50 and 70 feet bgs. These constituents were not reported in SV-1 through SV-9, and Lamoure’s has no history of their storage or use. Similar constituents were present in groundwater in Univar monitoring wells VW— 03B, VW-07, MW-18S, and T01-02.

Blackburn collected one groundwater sample at MW-1 on May 8, 2019. The reported PCE concentration at MW-1 (140 µg/L) appears to exceed the most recent shallow PCE concentration data available for the Univar site. Groundwater was encountered approximately ten feet below the deepest soil gas sample collected during this investigation.

2.4.2.4 Supplemental Remedial Investigation (October/November 2019) The Supplemental RI proposed installation of four off-site soil vapor wells with up to five completion zones to a depth of 90 feet bgs. The location of the four wells (SV-10 through SV-13) are indicated on Figure 3. In May 2019, Blackburn installed two soil gas wells (SV-10 and SV-11) at off-site locations north and south of FB-10-0121, however permitting issues prevented installation of SV-12 and SV-13. In November 2019, after permit issues were resolve, Blackburn installed two nested soil gas wells (SV-12 and SV-13). The following sampling intervals were completed by well cluster location:
• SV-12: Completed in four discrete zones with probes screened to depths of 9.5 feet bgs, 17.0 feet bgs, 27.0 feet bgs, and 37 feet bgs.
• SV-13: Completed in two discrete zones with probes screened to depths of 9.5 feet bgs and 74.0 feet bgs.

Blackburn collected seven (7) samples including one field duplicate. Table 4 summarizes the laboratory analysis results.

2.5 Soil Vapor Well SV-1 through SV-13 Quarter 3 Sampling and Analysis Nested soil gas wells SV-1 through SV-13 were sampled from January 27-29, 2020. SunStar Laboratories, Inc. analyzed the samples on February 4, 2020. The subsections below explain the sampling and analysis methods for these wells. Field sampling logs appear in Appendix A, and laboratory analysis reports appear in Appendix B. Table 5 summarizes the laboratory analysis results for chemicals exceeding the laboratory reporting limit.

2.5.1 Sampling Method
Dedicated sampling manifolds were used at each well. Prior to purging and sampling, the wells were checked for leaks by performing a shut-in test with the down-stream valves, lines, purge, and sampling

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6 Summa canisters in place. With the sampling and purge canisters closed, the system was evacuated by pulling a vacuum of approximately 100 inches of water using a purge pump. Once the system was evacuated, the upstream probe valve was shut, and the in-line vacuum gauge observed for a minimum of one minute for significant drops in vacuum. Care was taken after shut in tests to not alter or disturb the sampling train. Shut-in tests for all wells (excluding SV-9C), were successful. It was discovered after performing the shut-in test and sampling SV-9C that the gauge on the sampling manifold was broken and permanently fixed on a negative pressure reading, making it appear as if the shut-in test was successful. The faulty gauge was discarded.

Following the shut-in tests, the soil gas probes were purged a minimum of three calculated volumes of the probe and tip inner diameters and half of the total volume of the sanded and dry bentonite interval pore spaces (conservatively assuming 50% overall porosity). Purge logs (Appendix A) show that sample flow was regulated to no more than 200 milliliters per minute with a vacuum of less than 100 inches of water using laboratory supplied evacuated steel containers and in-line flow restrictors. Purge times ranged from 8 to 16 minutes. The gas probes were sampled using laboratory-supplied evacuated steel containers. Isopropanol was used as the leak detection compound and was employed by placing a clean cloth dampened with isopropanol near the junction of the well head and sampling container manifold/probe connection. Laboratory analyses included isopropanol in the suite of chemicals.

Blackburn collected forty-six (46) samples including two field duplicates. Due to a lack of extra steel sampling containers, additional duplicate samples could not be taken. Following sampling, the probes were capped, secured, and left in place pending future potential sampling. Soil gas sampling logs are included in Appendix A.

The sample containers were labelled and delivered under continuous chain-of-custody to Sunstar Laboratory for VOCs analysis by USEPA Method TO-15.

2.5.2 Soil Gas Analytical Results
Sunstar Laboratory’s analysis report appears in Appendix B and lists all results. Due to high analyte concentrations, SunStar replaced analysis method TO-15 with TO-14 and adjusted their reporting limit accordingly.

Table 5 summarizes the detected concentrations. Applicable screening levels from the US EPA (RSLs), California Department of Toxic Substances Control (SLs), and the California Regional Water Quality Control Board (ESLs) appear on the table for comparison. The RSLs and SLs have been modified with an attenuation factor of 0.03, since they are based on ambient air instead of soil gas.

Reported detections and range of reported concentrations are discussed below. • Acetone appeared in three samples (SV-5B, SV-6A, and SV-10D) at concentrations ranging from 120 to 240 µg/m³. None of these results exceed RSLs, SLs, or ESLs. • Chloroform was reported in three samples (SV-12A, SV-13A, and SV-13B) at concentrations ranging from 270 to 580 µg/m³. All these results exceed RSLs and ESLs. DTSC does not provide SLs for chloroform and defers to RSLs.

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7 • 1,3-dichlorobenzene appeared in four samples (SV-10D, SV-11C, SV-11D, and SV-12C) at concentrations ranging from 380 to 1,100 µg/m³. No RSLs, SLs, or ESLs are available for 1,3- dichlorobenzene.
• Cis-1,2-dichloroethane (cis-DCE) was reported in six samples ranging in concentrations from 350 µg/m³ in sample SV-7B, to 3,700 µg/m³ in sample SV-3B. All of these results exceed the residential ESL of 280 µg/m³
• PCE was reported in all 44 samples analyzed at concentrations ranging from 1,100 µg/m³ in sample SV-10B to 1,200,000 µg/m³ in sample SV-3B. All of these results exceed the commercial and residential RSLs, SLs, and ESLs.
• Trichloroethene (TCE) was reported in twenty-three (23) samples ranging in concentrations from 310 µg/m³ in sample SV-7A, to 3,400 µg/m³ in sample SV-13B. All detections exceeded RSLs and ESLs. DTSC does not provide SLs for TCE and defers to RSLs. • Toluene was reported in one sample, SV-10D, at a concentration of 550 µg/m³. This result is below all applicable screening levels.
• Isopropanol appeared only in sample SV-5B at 870 µg/m³. Isopropanol is a tracer compound that Blackburn brought to the site for quality control purposes as explained in section 3.1.2 below.

Appendix B includes the Analytical Laboratory report and Chain of Custody.

2.6 Groundwater Well WM-1 Quarter 3 Sampling and Analysis Blackburn sampled MW-1 during the same mobilization to sample the soil vapor wells. Appendix A includes the sampling log. Sunstar Laboratories, Inc. analyzed the sample, and Appendix B includes their report. The analysis results appear on Table 6 along with historic results from MW-1.

2.6.1 Sampling Methodology
Prior to sampling MW-1, the groundwater level in the well was measured and recorded, and the well was purged a minimum of three well volumes, or until field indicator parameters of pH, temperature and electrical conductivity stabilized. Appendix A includes the MW-1 purge log.

Following purging, Blackburn used single-use bailers to extract water samples and containerize them in four, 40-millimeter VOAs) on January 28, 2020. Following collection, the groundwater sample containers were labelled, recorded on a chain-of-custody form, preserved in a chilled ice chest, and transported to SunStar Laboratory with accompanying chain-of-custody documentation.

Purge water was containerized in a DOT-approved 55-gallon drum and secured on site. The drum was appropriately labelled with information concerning the source, content, owner, and contact information pending appropriate off-site disposal.

2.6.2 Groundwater Analytical Results
Sunstar Laboratory analyzed the MW-1 sample for VOCs by USEPA Method 8260. Appendix B includes the laboratory report and chain of custody. SunStar reported PCE at a concentration of 140 µg/l. The laboratory reporting limit was 1.0 µg/l, and no other VOC compounds were reported.

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8 Complete analytical results are in Table 6. Applicable screening levels from the US EPA (RSLs), California Department of Toxic Substances Control (SLs), and the California Regional Water Quality Control Board (ESLs) are included in the table for comparison. PCE exceeds the RSLs, SLs, and ESLs in MW-1.

3 SUMMARY AND EVALUATION
Forty-four soil gas samples and two duplicate samples were collected from soil gas wells in nested configurations with sampling intervals ranging from 10 feet bgs to 90.4 feet bgs. Soil gas well locations were based on known historical site use, former dry-cleaning equipment locations, and sanitary sewer line locations. SV-1 through SV-6 are within the former building footprint to evaluate the vertical profile of PCE in the vicinity of the source area. Soil gas well SV-7 to was located to provide lateral control to the east. Soil gas wells SV-8 and SV-9 were located southwest of the former building to provide lateral control. SV-10 and SV-11 help assess the lateral extent of soil gas impacts to the northwest and southeast, respectively. SV-12 and SV-13 help assess soil gas impacts west and southwest of the former Lamoure’s property.

Monitoring well MW-1 provides groundwater samples from the area beneath former dry- cleaning machines.

3.1 Soil Gas

3.1.1 Assessment
Reported concentrations of PCE, chloroform, cis-1,2-dichloroethene and trichloroethene (TCE) exceed DTSC Screening Levels (DTSC-SLs), RWQCB Environmental Screening Levels (ESLs), and/or EPA Regional Screening Levels (RSLs) by a minimum of one order of magnitude. TCE was reported in twenty-three samples in soil gas wells, SV-1, SV-2, SV-3, SV-4, SV-5, SV-7, SV-8, SV-12 and SV-13. Reported acetone, 1,3-dichlorobenzene, and toluene concentrations do not exceed current regulatory screening levels.

The construction of wells SV-12 and SV-13 does not meet their original intent. Although a potentially large void exists in the SV-13 borehole between probes SV-13A and SV-13B, samples from both probes should still represent formation conditions. Purge volumes were relatively small compared to the surrounding formation (1.6 L at SV-13A and 3.2 L at SV-13B), so the potential for short circuiting through the void is minimal.

3.1.1.1 Interaction with PCE Impacts to Groundwater
The underlying groundwater plume is most likely not responsible for most soil vapor impacts. On November 5, 2019, monitoring well MW-17S exhibited a PCE concentration of 37 µg/l in groundwater. 2 Groundwater at MW-17S was at 98.08 feet bgs on November 4, 2019.3

2 Environmental data access online from GeoTracker at
https://geotracker.waterboards.ca.gov/profile_report?cmd=MWEDFResults&global_id=SL185704255&assigned_n ame=MW%2D17S on March 4, 2020.
3 Environmental data access online from GeoTracker at
https://geotracker.waterboards.ca.gov/linechartxy?global_id=SL185704255&locid=MW - 17S&mymatrix=GW&combine=False&SHOWDTW=True on March 4, 2020.

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9 Henry’s Law can provide a correlation between PCE in groundwater and vapor at the air-groundwater interface, as follows:

𝐾𝐾𝐻𝐻 = 𝐶𝐶𝑎𝑎𝑎𝑎𝑎𝑎
𝐶𝐶𝑤𝑤𝑎𝑎𝑤𝑤𝑤𝑤𝑎𝑎

Where KH is the Henry’s Law Constant. Rewritten, this is:

𝐶𝐶𝑎𝑎𝑎𝑎𝑎𝑎 = 𝐶𝐶𝑤𝑤𝑎𝑎𝑤𝑤𝑤𝑤𝑎𝑎 × 𝐾𝐾𝐻𝐻

For groundwater with 37 μg/l PCE at an assumed temperature of 20 C (293K), the dimensionless form of KH is 0.58614 (USACE, 2002). Using the above equation,

𝐶𝐶𝑎𝑎𝑎𝑎𝑎𝑎 = 37 𝜇𝜇𝜇𝜇
𝐿𝐿 × 0.58614 × 1000𝐿𝐿
𝑚𝑚3 = 21,687 𝜇𝜇𝜇𝜇
𝑚𝑚3

This means a PCE concentration of 21,687 μg/m3 should exist at the groundwater-air interface at 98.08 feet bgs. Since PCE vapors are actually more concentrated at 71 or 73 feet bgs, then the predominant PCE source must also lie somewhere above the water table.

SV-5E (90.4 ft bgs) and SV-7E (89.0 ft bgs) are the closest samples to the water table. PCE concentrations from them were 100,000 μg/m3 and 110,000 μg/m3, respectively. They are near MW-1, which exhibited 140 μg/l in January 2020. Using the same Henry’s Law relationship as above, soil gas immediately above the water table at MW-1 should be 82,060 μg/m3, which is slightly lower than the levels observed in SV- 5E and SV-7E. Above those soil vapor wells, SV-5D and SV-7D wells exhibited higher PCE levels of 760,000 μg/m3 and 300,000 μg/m3, respectively. Therefore, the impacts at 90 feet bgs may have resulted from soil-based PCE impacts higher up and volatilization from groundwater further below.

3.1.1.2 Temporal PCE Trends
An examination of Figure 5 reveals that the January 2020 event showed mostly reductions to shallow PCE concentrations relative to most of the previous monitoring events.

3.1.1.3 Spatial PCE Trends
Figure 4 shows posted PCE concentrations in plan view. Source-area concentrations (the triangle formed by wells SV-2, SV-3, and SV-5) ranged from 270,000 µg/m³ to 1,200,000 µg/m³. This triangle is near the location of the former dry-cleaning equipment and MW-1. Cross sections (Figure 5) show that the most elevated concentrations appeared between 30 and 70 feet.

PCE concentrations in the off-site locations to the northwest and south (SV-10 and SV-11) ranged from 1,100 µg/m³ to 14,000 µg/m³. These concentrations remain significantly less than the on-site concentrations for every vertical interval sampled, with little variation based on interval depth. PCE concentrations in the off-site locations to the west and southwest (SV-12 and SV-13) exhibit higher PCE concentrations (35,000 to 500,000 µg/m³) at all sample depths. This suggests southwestern migration of PCE in soil gas. Underground utilities in in G Street may have provided a migration pathway.

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10 SV-12 and SV-13 are 50 to 60 feet apart. This is relatively close, considering the size of the site and its location within the larger Univar groundwater plume. Together, SV-12 and SV-13 provide five probe depths at 9.5 feet bgs, 17.0 feet bgs, 27.0 feet bgs, 37 feet bgs, and 73 feet bgs. They can provide a reasonable approximation of the vertical soil vapor distribution southwest of the site. This distribution suggests a trend of increasing PCE vapor concentrations with increasing depth. The result of 440,000 µg/m³ at SV-13B (73 feet bgs) is comparable to the result of 430,000 µg/m³ at SV-8D (71 feet bgs). The underlying groundwater plume is most likely not responsible for these soil vapor impacts.

3.1.1.4 Other Constituents
Acetone, chloroform, 1,3-dichlorbenzene, cis-DCE, and toluene appeared in the SV-10 and SV-11 samples, primarily between 50 and 70 feet bgs. These constituents were mostly absent in SV-1 through SV-9, except for cis-DCE, a biological breakdown product of TCE. These constituents have a sporadic history of appearing in the soil vapor well network along with carbon disulfide and 1,4- dichlorobenzene.

Lamoure’s has no history of the storage or use of these additional constituents. Similar constituents were present in groundwater in Univar monitoring wells VW—03B, VW-07, MW-18S, and T01-02.

3.1.2 Quality Control
A review of the laboratory QC reports indicates that SunStar analyzed all samples within their 30-day hold times.

Sunstar analyzed three blank samples and reported non-detect results for all analytes. Sunstar also analyzed three duplicates, 0013116-DUP1 and 0020311-DUP1, on internal samples containing PCE, chloroform, 1,3-dichlorobenzene, and TCE. Relative percent differences (RPDs) ranged from 0.779% to

14.5%, indicating acceptable replication of analysis results. The RPD4 compares two results from duplicate samples, as follows:

𝑅𝑅𝑅𝑅𝑅𝑅 =
|𝑋𝑋1 − 𝑋𝑋2|
�𝑋𝑋1 + 𝑋𝑋2
2 �
× 100%

where X
1 and X2 are measurements from replicate samples.

Blackburn collected duplicate samples at SV-4A and SV-12B. Sunstar analyzed both, reporting only PCE.

Location Original Sample
PCE Concentration
Duplicate Sample PCE
Concentration
RPD
SV-4A 130,000 μg/m3 120,000 μg/m3 8.0%
SV-12B 85,000 μg/m3 77,000 μg/m3 9.9%

4 U.S. Environmental Protection Agency, Test Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846), Chapter 1, accessed online at https://www.epa.gov/hw-sw846/chapter-one-sw-846- compendium-project-quality-assurance-and-quality-control on March 4, 2020.

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11 The above results indicate an acceptable degree of precision.

Blackburn used isopropanol as a leak tracer compound in accordance with the DTSC Advisory Active Soil Gas Investigations (Advisory). Isopropanol is not a constituent of potential concern at or near the site, so any detections are presumed the result of isopropanol deliberately introduced during vapor sampling.

SunStar reported 870 µg/m³ isopropanol in one sample, SV-5B. This result exceeds the laboratory reporting limit by a factor of 870 µg/m³ ÷ 130 µg/m³ = 6.7, which is below 10. According to the Advisory, no corrective action is necessary since the detected concentration of the leak check compound is not greater than or equal to 10 times the reporting limit for the target analyte.

3.2 Groundwater

3.2.1 Assessment
The reported PCE concentration at MW-1 (140 µg/L) appears to exceed recent shallow PCE concentration data available for the Univar site. Groundwater was encountered approximately ten feet below the deepest soil gas sample collected during this investigation. This PCE concentration is consistent with recent measurements in October 2019 (190 µg/L) and May 2019 (140 µg/L). These concentrations remain above the USEPA’s maximum contaminant level of 5 µg/L, which is also the ESL.

SunStar also reported 3.7 µg/L bromomethane in the MW-1 sample. No RSL or SL exists for bromomethane, and its ESL is 7.5 µg/L. Bromomethane is also a common laboratory contaminant, which SunStar also found in their method blank.

The Univar site has undergone remediation since 1998. More recently, ISCO applications appear to have reduced constituent concentrations in Univar’s monitoring wells. Therefore, the groundwater impacts at MW-1 are not directly comparable to those in Univar’s wells.

3.2.2 Quality Control
SunStar Laboratories received the MW-1 sample in good condition and at an acceptable temperature.

SunStar reported adequate recovery of surrogate constituents (4-bromofluorobenzene, dibromo- fluoromethane, and toluene-d8) ranging from 101% to 108%. These recoveries fall within the laboratory’s acceptable ranges.

The laboratory blank exhibited non-detect concentrations of all VOCs except 3.65 µg/L bromomethane, a known laboratory contaminant, and the same surrogate constituent spikes. In the blank, the surrogate recoveries ranged from 101% to 112%, also within acceptable ranges.

The laboratory control sample (LCS) and LCS duplicate pair exhibited RPDs for chlorobenzene, 1,1- dichloroethene, TCE, benzene, and toluene ranging from 3.79% to 4.87%. SunStar’s RPD limit is 20%. In both samples, spike recoveries for those constituents and the surrogates mentioned above ranged from

94.3% to 121%. These values all fall within acceptable ranges.

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12 4 CONCLUSIONS
PCE, chloroform, TCE, and cis-DCE are present at elevated concentrations in soil gas. PCE concentrations at the subject parcel appear to be elevated at the former dry-cleaning facility from near surface to approximately 90 ft bgs. The PCE concentrations exceed the DTSC commercial/industrial SL and the RWQCB commercial/industrial ESL by four to five orders of magnitude. Further analysis would be necessary to establish the level of risk that PCE concentrations, particularly in near-surface soil, may represent to site workers and the public. The deepest PCE vapor concentrations appear to exist in equilibrium with nearby groundwater impacts at approximately 100 feet bgs, with the highest PCE concentrations appearing between 30 and 70 feet bgs.

In addition to a PCE release from dry cleaning operations, groundwater appears to have transported PCE and other VOCs from the Univar site to FB-10-0121.

PCE vapor concentrations at off-site locations to the northwest and southeast (SV-10 and SV-11) are significantly lower than concentrations located on FB-10-0121. This indicates the source of PCE in the upper half of the vadose zone is from the former dry-cleaning operations at FB-10-0121. The off-site concentrations at SV-10 and SV-11 are consistently lower through all depth intervals when compared to on-site concentrations. PCE vapors in the lower half of the vadose zone appear to have originated from the upper half of the vadose zone as well as the groundwater plume emanating from the Univar site.

Remediation by Univar may explain why deeper PCE concentrations are lower in SV-11.

PCE concentrations at off-site locations to the west and southwest (SV-12 and SV-13) appear related to concentrations located on FB-10-0121, indicating the source of PCE in the upper half of the vadose zone is from the former dry-cleaning operations at FB-10-0121, and that buried utilities such as sanitary sewer lines may have acted as a conduit towards the west and southwest. The PCE concentrations at SV- 12 and SV-13 at all depth intervals exhibit similar patterns to on-site vertical distributions.

PCE concentrations across G Street at 10 feet are high enough to warrant further investigation into indoor air vapor intrusion inside the Dumont Printing building southwest of G Street and FB-10-0121.

Indoor air concentrations of PCE could potentially exceed DTSC’s commercial/industrial ambient air screening level of 2 µg/m³. Assuming a default, conservative attenuation factor of 0.03, SV-12A’s PCE concentration of 35,000 µg/m³ would suggest indoor air concentrations as high as 1,050 µg/m³. The concentration of 100,000 µg/m³ at SV-13A could mean indoor air concentrations are as high as 3,000 µg/m³ PCE.

Chloroform and TCE concentrations at SV-12 and SV-13 also exceed regulatory limits. TCE also appeared in SV-1 through SV-9 at most sample depths.

VOCs other than PCE and its potential breakdown products (TCE and cis-1,2-DCE) are not related to impacts from operations at the former Lamoure’s Dry Cleaners.

SUPPLEMENTAL REMEDIAL INVESTIGATION
QUARTERLY MONITORING REPORT March 10, 2020
California High Speed Train
FB-10-0121-1 and FB-10-0121-01 (APN 465-040-21S) Lamoure’s Fresno, CA

13 5 RECOMMENDATIONS
Blackburn recommends the following regarding further assessment and mitigation of identified VOCs in soil gas and groundwater at the subject parcel.
• Interim remediation of PCE in on-site soils for the protection of human health. Considering the proposed CHST construction schedule, interim abatement of near surface soil should be conducted in the CHST footprint.
• Remediation of impacts to deeper soil may not be effective until PCE concentrations in groundwater have decreased.
• Continued quarterly sampling of groundwater and selected soil gas wells to monitor attenuation.
• Additional soil vapor assessment closer to Dumont Printing or inside their building should be considered to determine if workers have been exposed to PCE vapors. • Future reporting should be limited to PCE and its potential breakdown products (TCE, cis-1,2- DCE, and vinyl chloride).

6 LIMITATIONS
Blackburn performed these services in accordance with generally accepted environmental engineering principles and practices currently used in Northern California. We do not warranty our services. Our scope does not include evaluation of hazardous materials or a determination of their potential presence on site, other than as specified herein. Testing of groundwater at other locations or conditions that exist at the exiting on-site groundwater well was not within the scope of this investigation. This report is not a comprehensive site characterization and shall not be so construed. We base the findings presented in this report on limited soil sampling and laboratory analyses. This report has been prepared for the CHST.

Others who use the data presented, or rely on the findings, conclusions and recommendations presented herein do so at their own risk and should determine the adequacy of the information for their own purposes. Blackburn makes no claim of the appropriateness for such use and is not responsible for the effect of such uses.

Geotechnical  Geo-Environmental  Construction Services  Forensics

SUPPLEMENTAL REMEDIAL INVESTIGATION

QUARTERLY MONITORING REPORT
California High Speed Train
FB-10-0121 (APN 465-040-21S)
Lamoure’s Cleaners
Fresno, California

FIGURES

Figure 1: Vicinity Map
Figure 2: Site Plan
Figure 3: Soil Gas and Groundwater Monitoring Well Locations Figure 4: PCE in Soil Gas
Figure 5: PCE in Soil Gas Analysis
SITE
9/8/2008 3252.x Fig1 FB-10-0121 Soil Gas Wells.dwgFigure 1March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno County, CaliforniaVICINITY MAPSCALE 1"=5,000' FRESNO

Tuolumne Street
Merced StreetF Street
Stanislaus Street
MW-08
MW-06
MW-18DMW-18SMW-05DMW-05
SV-3SV-4MW-17DMW-17SSV-8
MW-1SV-5SV-10
SV-11
SV-1SV-6SV-2SV-7
SV-9
MW-19SMW-19D
MW-21S
MW-22S
MW-07
T02-01
MW-09
MW-15SMW-15D
SV-13SV-12DuMont Printers
California High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno County, CaliforniaSITE PLAN SCALE 1" = 120'
- Monitoring Wells (Associated with Former Van Waters & Rodgers, Inc. Facility)L E G E N D - Parcel Boundary
Drawing Reference Source: RCC Group LLC, June 2015and HSR Right of Way Appraisal Map 2017.

MW-19D
G Street
Former Lamoure's DryCleaning Building
Figure 2
3/9/2020 3252.x Fig2 FB-10-0121 Soil Gas Wells.dwgMarch 2020File No. 3252.x U.P.R.R.(S.P.R.R.)- Nested Soil Vapor Well by RCC, June 2015.

H Street
- Approximate HSR ROW
- Groundwater Monitoring Well (Blackburn, 2019)- Approximate Location of Temporary Soil Gas Well SG-4 (Nichols, 2009)- Nested Soil Gas Monitoring Well (Blackburn 2018, 2019)

MW-06
MW-18DMW-18S
MW-05D
SV-3
SV-4
SV-1SV-2
Approximate FormerLocation of PrimaryDry CleaningMachinesSV-6 SV-9
MW-17DMW-17S
Approximate FormerLocation of WashingMachines
SV-8
MW-1SV-5SV-7
SV-11
SV-10
SV-13
SV-12
9/8/2008 3252.x Fig3 FB-10-0121 Soil Gas Wells.dwgFigure 3March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno, California SCALE 1" = 50'
G Street
- Nested Soil Gas Monitoring Well Location (Blackburn 2018 & 2019)- Groundwater Monitoring Well (Blackburn, 2018)- Groundwater Monitoring Well (Associated with Former Van Waters & Rodgers, Inc.)- Nested Soil Gas Well (RCC, 2015)- Approximate Location of Temporary Soil Gas Well SG-4 (Nichols, 2009)

L E G E N D
SOIL GAS & GROUNDWATER MONITORING WELL LOCATIONSNOTE: Former Van Waters & Rodgers Inc. well locations and RCCsoil vapor wells are based on RCC Group LLC and ERM drawingand figures.

U.P.R.R.(S.P.R.R.)
Former Building Location
- Parcel Boundary- Subsurface Sanitary Sewer Piping (dashed where inferred)- Floor Level Trench Drains DuMontPrinters
MW-06
SV-4
MW-17DMW-17SSV-8SV-9
SV-3
SV-1SV-6SV-5
SV-7
SV-2
SAMPLEDEPTH PCE Conc.SV-1A 10.0 160,000SV-1B30.0 500,000SV-1C41.5 510,000SAMPLEDEPTH PCE Conc.SV-6A 53.4 460,000SV-6B74.2 110,000SV-6C89.0 47,000 SAMPLEDEPTH PCE Conc.SV-3A 10.0 1,000,000SV-3B31.5 1,200,000SV-3C42.0 1,100,000SAMPLEDEPTH PCE Conc.SV-2A 10.0 270,000SV-2B24.5 760,000 SAMPLEDEPTH PCE Conc.SV-4A 10.0 130,000SV-4B24.5 470,000 SAMPLEDEPTH PCE Conc.SV-8A 12.0 230,000SV-8B34.0 750,000SV-8C48.0 790,000SV-8D71.0 430,000 SAMPLEDEPTH PCE Conc.SV-7A 12.0 80,000SV-7B32.0 540,000SV-7C50.5 180,000SV-7D75.0 300,000SV-7E90.2 110,000 SAMPLEDEPTH PCE Conc.SV-5A 10.0 710,000SV-5B32.0 880,000SV-5C50.0 550,000SV-5D70.6 760,000SV-5E90.4 100,000 A'
B'B
SAMPLEDEPTH PCE Conc.SV-9A 12.0 35,000SV-9A Dup.12.0 170,000SV-9C36.0 130,000MW-08 SV-10
SV-11
MW-18DMW-18S
MW-05DMW-05
SAMPLEDEPTH PCE Conc.SV-10A 12.0 14,000SV-10B29.0 1,100SV-10C55.0 5,700SV-10D69.5 9,600 SAMPLEDEPTH PCE Conc.SV-11A 16.0 1,800SV-11B29.0 4,000SV-11C59.0 6,200SV-11D70.0 5,000 SAMPLEDEPTH PCE Conc.MW-01A 68.0 140 Ug/LMW-01 SV-13SV-12C
C'
SAMPLE DEPTH PCE Conc.SV-12A 9.5 35,000SV-12B 17.0 85,000SV-12C 27.0 130,000SV-12D 37.0 500,000SAMPLEDEPTH PCE Conc.SV-13A 10.0 100,000SV-13B 73.0 440,000A Figure 4March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno, California SCALE 1" = 40'
G Street
L E G E N D- Parcel Boundary- Cross Section Location
3/6/2020 3252.x Fig4 FB-10-0121 Soil Gas Wells.dwg
Toulumne Street
- Nested Soil Gas Monitoring Well Location (Blackburn 2018 & 2019)- Groundwater Monitoring Well (Blackburn, 2018)- Groundwater Monitoring Well (Associated with Former Van Waters & Rodgers, Inc.)- Nested Soil Gas Well (RCC, 2015)- Approximate Location of Temporary Soil Gas Well SG-4 (Nichols, 2009)NOTE: Former Van Waters & Rodgers Inc. well locations and RCC soilvapor wells are based on RCC Group LLC and ERM drawings and figures.Depth provided in feet below ground surface. PCE concentrations inmicrograms per cubic meter (mg/m ).3 PCE IN SOIL GAS JANUARY 2020
SV-5
SV-7
SV-1 (RCC)
SV-6A' A0102030405060708090100D E P T H (f e e t)
0102030405060708090100D E P T H (f e e t)
99,000110,000
SV-3 (RCC)
SV-13520,00080,000320,0002,2001,000,000540,00036,000610,000430,000180,00015,000200,000720,000300,00045,000110,000220,000110,000 580,0001,300,0001,200,0001,000,000550,0001,100,0001,100,0001,200,000520,0001,100,0001,000,0001,100,000 280,000950,000420,000710,000
73,000650,000760,000550,000140,000590,000770,000760,00035,000100,00077,000100,000 350,000570,000200,000880,000260,000310,000250,000460,000350,000100,000110,000110,00038,00063,00056,00047,000 12,000210,000210,000160,000290,000680,000250,000500,000280,000600,000290,000510,000 440,000440,000
150,000100,000
Figure 5a
2/27/2020 3252.x Fig5 FB-10-0121 Soil Gas Wells.dwg CROSS SECTION A-A' SHOWING PCE IN SOIL GAS 2018, 2019 & 2020 CROSS SECTION A-A'SCALE: 1" = 20' (Hor./Vert.)
NOTE: Depth provided in feet below ground surface. PCEconcentrations in micrograms per cubic meter (mg/m ).3 36,000- Soil Vapor Test Results for 2018610,000- Soil Vapor Test Results for May 2019ANALYSIS RESULTS LEGEND430,000- Soil Vapor Test Results for October 2019180,000- Soil Vapor Test Results for January 2020March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno, California

SV-2 (RCC)
SV-8
B B'0102030405060708090100D E P T H (f e e t)
SV-3 (RCC)
SV-9
SV-10
SV-110102030405060708090100D E P T H (f e e t)* Sampled with leakin manifold 13,00047,00014,000(dup)1,500 / 1,3002,5001,100
1,7007,2009,600
8,80017,0005,700
370,0002,800960,000270,000360,000990,000810,000760,000
580,0001,300,0001,200,0001,000,000550,0001,100,0001,100,0001,200,000520,0001,100,0001,000,0001,100,000 240,000470,000650,000230,000510,000970,000470,000750,00092,000570,000570,000790,000130,00041,000460,000430,000 1,300/12,00044,000Dup(26,000)/33,00035,00072,000240,000230,000170,00025,00059,00031*130,000 2,1001,1001,800
4,8004,3006,2001,6002,5005,000
3,8002,6004,000
Figure 5b
2/27/2020 3252.x Fig5 FB-10-0121 Soil Gas Wells.dwg CROSS SECTION B-B' SHOWING PCE IN SOIL GAS 2018, 2019 & 2020 CROSS SECTION B-B'SCALE: 1" = 20' (Vert.)NO SCALE (Horiz.) NOTE: Depth provided in feet below ground surface. PCEconcentrations in micrograms per cubic meter (mg/m ).3 36,000- Soil Vapor Test Results for 2018610,000- Soil Vapor Test Results for May 2019ANALYSIS RESULTS LEGEND430,000- Soil Vapor Test Results for October 2019180,000- Soil Vapor Test Results for January 2020March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno, California

SV-4 (RCC)
SV-12C0102030405060708090100D E P T H (f e e t)
0102030405060708090100D E P T H (f e e t)
SV-8
C'56,00035,00090,000 Dup(77,000)/85,00065,000130,000Dup(450,000)/470,000500,000 240,000470,000650,000230,000510,000970,000470,000750,00092,000570,000570,000790,000130,00041,000460,000430,000 120,000170,000500,000Dup(120,000)/130,000200,000480,0001,100,000470,000 Figure 5c
2/27/2020 3252.x Fig5 FB-10-0121 Soil Gas Wells.dwg CROSS SECTION C-C' SHOWING PCE IN SOIL GAS 2018, 2019 & 2020 CROSS SECTION B-B'SCALE: 1" = 20' (Vert.)NO SCALE (Horiz.) NOTE: Depth provided in feet below ground surface. PCEconcentrations in micrograms per cubic meter (mg/m ).3 36,000- Soil Vapor Test Results for 2018610,000- Soil Vapor Test Results for May 2019ANALYSIS RESULTS LEGEND430,000- Soil Vapor Test Results for October 2019180,000- Soil Vapor Test Results for January 2020March 2020File No. 3252.xCalifornia High-Speed Train (CHST)Parcel FB-10-0121, APN 465-040-21SLamoure's Cleaners, 1304 G StreetFresno, California

Geotechnical  Geo-Environmental  Construction Services  Forensics

SUPPLEMENTAL REMEDIAL INVESTIGATION

QUARTERLY MONITORING REPORT
California High Speed Train
FB-10-0121 (APN 465-040-21S)
Lamoure’s Cleaners
Fresno, California

TABLES

Table 1: RCC Soil Gas and Soil Sample Results Summary
(Detected Compounds)
Table 2: April 2018 Soil Gas Analysis Results
(Detected Compounds)
Table 3: May 2019 Soil Gas Analysis Results
(Detected Compounds)
Table 4: 2019 October/November Soil Gas Analysis Results (Detected Compounds)
Table 5: 2020 January Soil Gas Analysis Results
(Detected Compounds)
Table 6: Groundwater Sample Analytical Results
VOC's
PCE cis-1,2-DCE IPA (leak detect PCE
ug/m3 ug/m3 ug/m3 mg/kg
SV-1A 10.0 7/8/2015 200,000 <950 <2,400 10.0 6/19/2015 <0.005 SV-1B 30.0 7/8/2015 310,000 <1,600 <3,900 30.0 6/19/2015 <0.005 SV-1C 41.5 7/8/2015 150,000 <470 <1,200 42.0 6/19/2015 0.087 SV-2A 10.0 7/8/2015 1,100,000 <4,700 <12,000 10.0 6/1/2015 <0.005 SV-2B 24.5 7/8/2015 790000.0 12000.0 <12,000 25.0 6/1/2015 0.012 SV-3A 10.0 7/8/2015 4,300,000.0 <8,000 59,000 10.0 6/19/2015 0.01 SV-3B 31.5 7/8/2015 1,700,000 9,800 <23,000 31.0 6/19/2015 0.63 SV-3C 42.0 7/8/2015 2,400,000 10,000 <24,000 42.0 6/19/2015 0.02 SV-4A 10.0 7/8/2015 150,000 <480 7,500 10.0 6/1/2015 <0.005 SV-4B 24.5 7/8/2015 170,000 <580 <1,400 24.5 6/1/2015 0.005 Notes
PCE=Tetrachloroethene
cis-1,2 DCE=cis-1,2-Dichloroethene
bgs=below ground surface
ug/m3=micrograms per cubic meter
mg/kg=milligrams per kilogram
SV-4
TABLE 1
RCC SOIL GAS AND SOIL SAMPLE RESULTS SUMMARY (Detected Compounds) SV-1
SV-2
SV-3
Soil Vapor Analytical Results
Sample
Location
Sample
Depth
(feet bgs)
Sample
Date
Soil Sample Analytical Results
VOC's
Sample
Location Sample DateSample Depth (feet
bgs)
Carbon
Disulfide
cis-1,2-
Dichloro
ethene
Tetrachloro
ethene
Trichloro
ethene Toluene IPA (leak
detect)
ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3
SV-1A 10.0 4/23/2018 <160 >200 12,000 >270 >190 <130
SV-1B 30.0 4/23/2018 <160 >200 290,000 430 >190 8,200
SV-1C 41.5 4/23/2018 <160 >200 280,000 450 >190 <130
SV-2A 10.0 4/23/2018 <160 230 370,000 730 >190 <130
SV-2B 24.5 4/23/2018 <160 2,500 360,000 1,700 >190 <130 SV-3A 10.0 4/24/2018 <160 520 580,000 2,000 >190 <130
SV-3B 31.5 4/24/2018 <160 4,300 550,000 2,100 >190 <130 SV-3C 42.0 4/24/2018 <160 3,900 520,000 2,200 >190 <130 SV-4A 10.0 4/24/2018 <160 >200 120,000 >270 >190 <130
SV-4B 24.5 4/24/2018 <160 >200 200,000 520 >190 <130
SV-5A 10.0 4/24/2018 <160 >200 280,000 670 >190 <130
SV-5B 32.0 4/24/2018 <160 2,000 350,000 920 >190 <130
SV-5C 50.0 4/24/2018 440 300 73,000 >270 >190 <130
SV-5D 70.6 4/24/2018 350 >200 140,000 >270 210 <130
SV-5E 90.4 4/24/2018 <160 >200 35,000 >270 >190 <130
SV-6A 53.4 4/24/2018 <160 >200 260,000 >270 >190 <130
SV-6B 74.2 4/24/2018 <160 >200 350,000 >270 >190 <130
SV-6C 89.0 4/24/2018 410 >200 38000 >270 >190 5,500
SV-7A 12.0 4/24/2018 <160 >200 99,000 >270 >190 <130
SV-7B 32.0 4/24/2018 160 710 320,000 850 >190 <130
SV-7C 50.5 4/24/2018 140 >200 36,000 130 >190 <130
SV-7D 75.0 4/24/2018 56 >200 15,000 >270 >190 <130
SV-7E 90.2 4/24/2018 <160 >200 45,000 71 >190 <130
SV-8A 12.0 4/25/2018 <160 >200 240,000 95 >190 <130
SV-8B 34.0 4/25/2018 <160 >200 510,000 760 >190 <130
SV-8C 48.0 4/25/2018 590 >200 92,000 69 >190 <130
SV-8D 71.0 4/25/2018 460 >200 130,000 76 >190 <130
SV-9A 12.0 4/25/2018 <160 >200 13,000 >270 >190 <130
SV-9B 36.0 4/25/2018 240 >200 72,000 >270 >190 <130
SV-9C 49.5 4/25/2018 310 >200 25,000 >270 >190 <130
SV-9ADUP 12.0 4/25/2018 <160 >200 12,000 >270 >190 <130 IPA = Isopropyl Alcohol
bgs = below ground surface
Table 2 - Soil Vapor Analytical Results April 2018
Sample
Location
Sample
Depth
(feet bgs)
Sample Date
ug/m3 = micrograms per cubic meter
Acetone Carbon
Disulfide Hexane
1,3-
Dichloro
benzene
1,4-
Dichloro
benzene
cis-1,2-
Dichloro
ethene
trans-1,2-
Dichloroe
thene
Tetrachloro
ethene
Trichloro
ethene
1,3,5-
Trimethyl
benzene
1,2,4-
Trimethyl
benzene
Toluene IPA (leak
detect)
ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 SV-1A 10.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 210,000 >270 >250 >250 >190 <130 SV-1B 30.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 680,000 740 >250 >250 >190 <130 SV-1C 41.5 4/29/2019 >120 >160 >180 >310 >310 >200 >200 600,000 670 >250 >250 >190 <130 SV-2A 10.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 2,800 >270 >250 >250 >190 <130 SV-2B 24.5 4/29/2019 >120 >160 >180 >310 >310 2,500 >200 990,000 2,500 >250 >250 >190 <130 SV-3A 10.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 1,300,000 2,800 >250 >250 >190 <130 SV-3B 31.5 4/29/2019 >120 >160 >180 >310 >310 4,100 >200 1,100,000 3,300 >250 >250 >190 <130 SV-3C 42.0 4/29/2019 >120 >160 >180 >310 >310 3,600 >200 1,100,000 2,700 >250 >250 >190 <130 SV-4A 10.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 170,000 >270 >250 >250 >190 <130 SV-4B 24.5 4/29/2019 >120 >160 >180 >310 >310 >200 >200 480,000 1,000 >250 >250 >190 <130 SV-5A 10.0 4/29/2019 >120 >160 >180 >310 >310 >200 >200 950,000 1,400 >250 >250 >190 <130 SV-5B 32.0 4/29/2019 330 >160 >180 >310 >310 650 >200 570,000 900 >250 >250 >190 31,000 SV-5C 50.0 4/29/2019 >120 >160 >180 >310 >310 820 >200 650,000 1,400 >250 >250 >190 <130 SV-5D 70.6 4/29/2019 >120 >160 >180 >310 >310 >200 >200 590,000 >270 >250 >250 >190 31,000 SV-5E 90.4 4/29/2019 >120 >160 >180 >310 >310 >200 >200 100,000 >270 >250 >250 >190 <130 SV-6A 53.4 4/29/2019 >120 >160 >180 >310 >310 >200 >200 310,000 >270 >250 >250 >190 7,500 SV-6B 74.2 4/29/2019 >120 >160 >180 >310 >310 >200 >200 100,000 >270 >250 >250 >190 <130 SV-6C 89.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 63,000 >270 >250 >250 >190 <130 SV-7A 12.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 110,000 310 >250 >250 >190 <130 SV-7B 32.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 2,200 >270 >250 >250 >190 <130 SV-7C 50.5 4/30/2019 >120 >160 >180 >310 >310 240 >200 610,000 1,200 >250 >250 >190 <130 SV-7D 75.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 200,000 560 >250 >250 >190 <130 SV-7E 90.2 4/30/2019 >120 >160 >180 >310 >310 >200 >200 110,000 >270 >250 >250 >190 <130 SV-8A 12.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 470,000 >270 >250 >250 >190 <130 SV-8B 34.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 970,000 1,100 >250 >250 >190 <130 SV-8C 48.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 570,000 280 >250 >250 >190 <130 SV-8D 71.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 41,000 >270 >250 >250 >190 6,800 SV-9A 12.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 44,000 >270 >250 >250 >190 <130 SV-9B 36.0 4/30/2019 >120 >160 >180 >310 >310 >200 >200 240,000 >270 >250 >250 >190 <130 SV-9C 49.5 4/30/2019 >120 >160 >180 >310 >310 >200 >200 59,000 >270 >250 >250 >190 <130 SV-10A 12.0 5/14/2019 >120 >160 >180 >310 >310 >200 >200 13,000 >270 >250 >250 >190 <130 SV-10B 29.0 5/14/2019 >120 >160 >180 >310 >310 >200 >200 1,300 >270 370 1,000 >190 <130 SV-10BDUP 29.0 5/14/2019 >120 >160 >180 >310 >310 >200 >200 1,500 >270 350 930 >190 <130 SV-10C 55.0 5/14/2019 >120 160 >180 >310 >310 >200 >200 8,800 >270 >250 >250 >190 <130 SV-10D 70.0 5/14/2019 >120 500 >180 2,900 3,000 >200 >200 1,700 >270 >250 >250 400 <130 SV-11A 16.0 5/14/2019 >120 >160 >180 >310 >310 >200 >200 2,100 >270 >250 >250 >190 <130 SV-11B 29.0 5/14/2019 >120 >160 >180 >310 >310 >200 >200 3,800 >270 >250 >250 >190 <130 SV-11C 70.0 5/14/2019 >120 >160 >180 430 400 >200 >200 4,800 >270 >250 >250 >190 <130 SV-11D 59.0 5/14/2019 1,300 250 210 1,100 1,100 >200 270 1,600 >270 >250 >250 2,400 <130 IPA = Isopropyl Alcohol
VOCs
ug/m3 = micrograms per cubic meter
bgs = below ground surface
Table 3 - Soil Vapor Analytical Results May 2019
Sample Location
Sample
Depth
(feet bgs)
Sample Date
Acetone Carbon
Disulfide Chloroform Ethylbenzene Hexane
1,3-
Dichloro
benzene
1,4-
Dichloro
benzene
cis-1,2-
Dichloro
ethene
trans-1,2-
Dichloroe
thene
Tetrachloro
ethene
Trichloro
ethene
Trichlorofluoro
methane
1,3,5-
Trimethyl
benzene
1,2,4-
Trimethyl
benzene
Toluene IPA (leak
detect)
ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 SV-1A 10.0 9/30/2019 <120 <160 <250 <220 <180 <310 1,700 <200 <200 210,000 430 <290 <250 <250 <190 <130 SV-1B 30.0 9/30/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 250,000 780 <290 <250 <250 <190 <130 SV-1C 41.5 9/30/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 290,000 770 <290 <250 <250 <190 <130 SV-2A 10.0 9/30/2019 <120 <160 <250 <220 <180 <310 1,500 550 <200 960,000 4,900 <290 <250 <250 <190 <130 SV-2B 24.5 9/30/2019 <120 <160 <250 <220 <180 <310 2,000 4,400 <200 810,000 5,900 <290 <250 <250 <190 <130 SV-3A 10.0 9/30/2019 <120 <160 <250 <220 <180 <310 840 370 <200 1,200,000 13,000 <290 <250 <250 <190 <130 SV-3B 31.5 9/30/2019 <120 <160 310 <220 <180 <310 530 9,500 <200 1,100,000 8,500 <290 <250 <250 <190 <130 SV-3C 42.0 9/30/2019 <120 <160 <250 <220 <180 <310 1,200 10,000 <200 1,000,000 8,200 <290 <250 <250 <190 <130 SV-4A 10.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 500,000 410 <290 <250 <250 <190 <130 SV-4B 24.5 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 1,100,000 3,500 <290 <250 <250 <190 <130 SV-5A 10.0 9/30/2019 <120 <160 <250 <220 <180 <310 2,400 <200 <200 420,000 3,300 <290 <250 <250 <190 <130 SV-5B 32.0 9/30/2019 <120 <160 <250 <220 <180 <310 1,300 360 <200 200,000 680 <290 >250 >250 >190 21,000 SV-5C 50.0 9/30/2019 <120 <160 <250 <220 <180 <310 2,200 1,200 <200 760,000 2,500 <290 >250 >250 >190 <130 SV-5D 70.6 9/30/2019 <120 <160 <250 <220 <180 <310 3,600 <200 <200 770,000 1,300 290 >250 >250 >190 <130 SV-5E 90.4 9/30/2019 <120 <160 <250 <220 <180 <310 1,300 <200 <200 77,000 <270 <290 >250 >250 >190 6,100 SV-6A 53.4 9/30/2019 <120 <160 <250 <220 <180 <310 2,300 <200 <200 250,000 <270 <290 >250 >250 >190 67,000 SV-6B 74.2 9/30/2019 <120 <160 <250 <220 <180 <310 5,300 <200 <200 110,000 <270 <290 >250 >250 >190 5,400 SV-6C 89.0 9/30/2019 <120 <160 <250 <220 <180 <310 510 <200 <200 56,000 <270 <290 <250 <250 <190 <130 SV-7A 12.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 520,000 2,300 <290 <250 <250 <190 <130 SV-7B 32.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 1,000 <200 1,000,000 4,700 <290 <250 <250 <190 <130 SV-7C 50.5 10/1/2019 <120 <160 <250 <220 <180 <310 <310 280 <200 430,000 1,400 <290 <250 <250 <190 <130 SV-7D 75.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 720,000 2,200 <290 <250 <250 <190 <130 SV-7E 90.2 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 220,000 420 <290 <250 <250 <190 <130 SV-8A 12.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 650,000 600 <290 <250 <250 <190 <130 SV-8B 34.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 470,000 1,500 <290 <250 <250 <190 <130 SV-8C 48.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 570,000 570 <290 <250 <250 <190 <130 SV-8D 71.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 460,000 460 <290 <250 <250 <190 <130 SV-9A 12.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 33,000 <270 <290 <250 <250 <190 <130 SV-9ADUP 12.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 26,000 <270 <290 <250 <250 <190 <130 SV-9B 36.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 230,000 <270 <290 <250 <250 <190 <130 SV-9C 49.5 10/2/2019 23 <160 <250 <220 <180 <310 <310 <200 <200 31 <270 <290 <250 <250 <190 520 SV-10A 12.0 10/1/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 47,000 <270 <290 <250 <250 <190 <130 SV-10B 29.0 10/1/2019 <120 <160 <250 1,800 <180 <310 <310 <200 <200 2,500 <270 <290 <250 <250 <190 <130 SV-10C 55.0 10/1/2019 <120 <160 <250 <220 <180 <310 400 <200 <200 17,000 <270 <290 <250 <250 <190 <130 SV-10D 70.0 10/1/2019 <120 370 <250 <220 <180 3,700 <310 <200 <200 7,200 <270 <290 <250 <250 1,200 1,900 SV-11A 16.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 1,100 <270 <290 <250 <250 <190 5,100 SV-11B 29.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 2,600 <270 <290 <250 <250 <190 <130 SV-11C 70.0 10/2/2019 <120 <160 <250 <220 <180 <310 <310 <200 <200 4,300 <270 <290 <250 <250 <190 <130 SV-11D 59.0 10/2/2019 <120 <160 <250 <220 <180 <310 400 <200 <200 2,500 <270 <290 <250 <250 <190 <130 410
IPA = Isopropyl Alcohol
bgs = below ground surface
Table 4 - Soil Vapor Analytical Results October 2019
Sample Location
Sample
Depth
(feet bgs)
Sample Date
VOCs
ug/m3 = micrograms per cubic meter
Acetone Chloroform
1,3-
Dichloro
benzene
cis-1,2-
Dichloro
ethene
Tetrachloro
ethene
Trichloro
ethene Toluene IPA (leak
detect)
ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3
SV-1A 10.0 1/27/2020 <120 <250 <310 <200 160,000 <270 <190 <130 SV-1B 30.0 1/27/2020 <120 <250 <310 <200 500,000 760 <190 <130 SV-1C 41.5 1/27/2020 <120 <250 <310 <200 510,000 850 <190 <130 SV-2A 10.0 1/27/2020 <120 <250 <310 <200 270,000 670 <190 <130 SV-2B 24.5 1/27/2020 <120 <250 <310 1,300 760,000 2,700 <190 <130 SV-3A 10.0 1/27/2020 <120 <250 <310 <200 1,000,000 2,300 <190 <130 SV-3B 31.5 1/27/2020 <120 <250 <310 3,700 1,200,000 3,400 <190 <130 SV-3C 42.0 1/27/2020 <120 <250 <310 3,600 1,100,000 2,700 <190 <130 SV-4A 10.0 1/28/2020 <120 <250 <310 <200 130,000 <270 <190 <130 SV-4A DUP 10.0 1/28/2020 <120 <250 <310 <200 120,000 <270 <190 <130 SV-4B 24.5 1/28/2020 <120 <250 <310 <200 470,000 1,900 <190 <130 SV-5A 10.0 1/27/2020 <120 <250 <310 <200 710,000 1,300 <190 <130 SV-5B 32.0 1/27/2020 150 <250 <310 1,600 880,000 2,400 <190 870 SV-5C 50.0 1/27/2020 <120 <250 <310 680 550,000 1,300 <190 <130 SV-5D 70.6 1/27/2020 <120 <250 <310 <200 760,000 450 <190 <130 SV-5E 90.4 1/27/2020 <120 <250 <310 <200 100,000 <270 <190 <130 SV-6A 53.4 1/27/2020 120 <250 <310 <200 460,000 310 <190 <130 SV-6B 74.2 1/27/2020 <120 <250 <310 <200 110,000 <270 <190 <130 SV-6C 89.0 1/27/2020 <120 <250 <310 <200 47,000 <270 <190 <130 SV-7A 12.0 1/28/2020 <120 <250 <310 <200 80,000 310 <190 <130 SV-7B 32.0 1/28/2020 <120 <250 <310 350 540,000 1,800 <190 <130 SV-7C 50.5 1/28/2020 <120 <250 <310 <200 180,000 600 <190 <130 SV-7D 75.0 1/28/2020 <120 <250 <310 <200 300,000 1,100 <190 <130 SV-7E 90.2 1/28/2020 <120 <250 <310 <200 110,000 <270 <190 <130 SV-8A 12.0 1/28/2020 <120 <250 <310 <200 230,000 <270 <190 <130 SV-8B 34.0 1/28/2020 <120 <250 <310 <200 750,000 1,600 <190 <130 SV-8C 48.0 1/28/2020 <120 <250 <310 <200 790,000 910 <190 <130 SV-8D 71.0 1/28/2020 <120 <250 <310 <200 430,000 710 <190 <130 SV-9A 12.0 1/28/2020 <120 <250 <310 <200 35,000 <270 <190 <130 SV-9B 36.0 1/28/2020 <120 <250 <310 <200 170,000 390 <190 <130 SV-9C 49.5 1/28/2020 <120 <250 <310 <200 130,000 <270 <190 <130 SV-10A 12.0 1/27/2020 <120 <250 <310 <200 14,000 <270 <190 <130 SV-10B 29.0 1/27/2020 <120 <250 <310 <200 1,100 <270 <190 <130 SV-10C 55.0 1/27/2020 <120 <250 <310 <200 5,700 <270 <190 <130 SV-10D 70.0 1/27/2020 240 <250 1,100 <200 9,600 <270 550 <130 SV-11A 16.0 1/29/2020 <120 <250 <310 <200 1,800 <270 <190 <130 SV-11B 29.0 1/29/2020 <120 <250 <310 <200 4,000 <270 <190 <130 SV-11C 70.0 1/29/2020 <120 <250 430 <200 6,200 <270 <190 <130 SV-11D 59.0 1/29/2020 <120 <250 380 <200 5,000 <270 <190 <130 SV-12A 9.5 1/29/2020 <120 270 <310 <200 35,000 <270 <190 <130 SV-12B 17.0 1/29/2020 <120 <250 <310 <200 85,000 <270 <190 <130 SV-12B DUP 17.0 1/29/2020 <120 <250 <310 <200 77,000 <270 <190 <130 SV-12C 27.0 1/29/2020 <120 <250 550 <200 130,000 <270 <190 <130 SV-12D 37.0 1/29/2020 <120 <250 <310 <200 500,000 670 <190 <130 SV-13A 10.0 1/29/2020 <120 580 <310 <200 100,000 <270 <190 <130 SV-13B 73.0 1/29/2020 <120 310 <310 <200 440,000 380 <190 <130 IPA = Isopropyl Alcohol
bgs = below ground surface
Table 5 Soil Vapor Analytical Results January 2020
Sample Location
Sample
Depth
(feet bgs)
Sample Date
VOCs
ug/m3 = micrograms per cubic meter

Table 6

GROUNDWATER SAMPLE ANALYTICAL RESULTS
CHST Parcel ID# Sample #
Volatile Organic Compounds (µg/L)
EPA Method 8260B
Sample Date Tetrachloroethene Trichloroethene Bromomethane MW-1 01/28/2020 140 ND 3.7
MW-1 10/1/2019 190 1.1 ND
FB-10-0121

MW-1 5/14/2019 140 ND ND
DRUM 5/14/2019 42 ND ND
MW-1 5/1/2018 68 ND ND
Reporting Limit 1.0 1.0 1.0
EPA Region 9 RSLs MCL

5.0 5.0 --
DTSC - SLs Screen Levels
(Tap Water) 0.083 -- --
RWQCB ESLs Direct Exposure
MCL Priority 5.0 5.0 7.5