Agenda packet — Water Subcommittee, August 27, 2026

Thursday, August 27, 2026
City of Rialto
Council Chambers
150 S. Palm Ave.

Rialto, CA 92376
Rialto City Hall, Council Chambers, 150 S. Palm Ave. Rialto CA 92376 Water Subcommittee
Mayor Joe Baca
Mayor Pro Tem Ed Scott
Regular Meeting - Final
REGULAR MEETING 10:00AM
Water Subcommittee Meeting
The City Council creates Subcommittees as needed to accomplish the work of the Council .

Subcommittees are categorized as either, Standing or Ad Hoc. Subcommittees do not replace the work or decision -making process of the City Council as a whole and are used to provide feedback to staff .

Subcommittees enable City staff to obtain early feedback from representative members of the City Council on issues affecting public policy prior to their presentation, as necessary, to the full City Council.

Any discussion or feedback expressed or received at a Subcommittee meeting should not be construed or understood to be a decision by or for the City Council. Further, any feedback the Subcommittee may make to the City Council is based on information possessed by the Subcommittee at the time the feedback is made and may be revised or amended upon receipt by the Subcommittee of additional or newer information.
1 August 27, 2026Water Subcommittee Regular Meeting - Final HOW TO REVIEW THE AGENDA. ALL AGENDAS ARE POSTED IN THE CITY HALL ADMINISTRATION BUILDING (150 SOUTH PALM AVENUE, RIALTO) AT LEAST 72 HOURS IN ADVANCE OF THE MEETING. ALL WRITINGS THAT RELATE

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ITEMS ADDED TO THE AGENDA. CONSISTENT WITH THE RALPH M. BROWN ACT, ADDITIONAL ITEMS MAY BE

ADDED TO THE AGENDA AND ACTED UPON BY THE SUBCOMMITTEE ONLY IF IT IS CONSIDERED TO BE A “SUBSEQUENT NEED” OR “EMERGENCY” ITEM AND IS ADDED BY A MAJORITY VOTE. MATTERS RAISED UNDER ORAL COMMUNICATIONS MAY NOT BE ACTED UPON AT THAT MEETING OTHER THAN AS PROVIDED ABOVE.

NEED ADA ASSISTANCE? IN COMPLIANCE WITH THE AMERICANS WITH DISABILITIES ACT, IF YOU NEED SPECIAL ASSISTANCE TO PARTICIPATE IN THIS MEETING, PLEASE CONTACT THE PUBLIC WORKS DIRECTOR AT (909) 421-7279. NOTIFICATION 48 HOURS PRIOR TO THE MEETING WILL ENABLE THE CITY TO MAKE REASONABLE ARRANGEMENTS TO ENSURE ACCESSIBILITY TO THIS MEETING (28 CAR 35.102-35.104 ADA Title II).

HOW TO ATTEND THE MEETING.
(1) Members of the public may attend the meeting in person.

HOW TO MAKE A PUBLIC COMMENT.
(1) Appear at the meeting and speak during the public comment period. There is a 5-minute time limit. (2) You may submit a public comment in writing to the Rialto Utility Authority by email at [email protected].

Call to Order By:

ROLL CALL
CLOSED SESSION:

WS-26-0529 CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED

LITIGATION
Pursuant to Government Code section 54956.9(d)(2)
Significant Exposure to Litigation
Number of Matters: one (1)
OPEN SESSION:

City Attorney's Report on Closed Session

ORAL COMMUNICATIONS/PUBLIC COMMENTS

APPROVAL OF MINUTES
WS-26-0534 Minutes from June 25, 2026 Meeting
Minutes of June 25 2026 meetingAttachments:

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2 August 27, 2026Water Subcommittee Regular Meeting - Final

REPORTS/DISCUSSION ITEMS
WS-26-0530 Staff Request Water Subcommittee Receive an Overview of the Labor Reset Process and Result, and Provide Feedback on the 2020 - 2023 Labor Component Reset and Associated Staffing Adjustments Under the Rialto Water Services Operations and Maintenance Subcontract.

RECOMMENDATION
Staff recommends that the Water Subcommittee receive an overview of the Labor Reset process and result, and provide feedback on the 2020 - 2023 Labor Component Reset and associated staffing adjustments under the Rialto Water Services Operations and Maintenance Subcontract.

Veolia Labor Reset MemoAttachments:

WS-26-0531 Staff Request Water Subcommittee Receive an Update on the River Ranch Basin Recharge.

RECOMMENDATION:

Staff recommends that the Water Subcommittee receive an update on the River Ranch Basin Recharge.

Attachment 1 - Exhibit A
Attachment 2 - Exhibit B
Attachments:

WS-26-0548 Staff Request Water Subcommittee Provide feedback on the Cost Share Agreement with San Bernardino Valley Municipal Water District for Salt and Nutrient Management Planning (SNMP) Phase 3A, in an Amount Not To Exceed $29,405.

RECOMMENDATION
Staff recommends that the Water Subcommittee Provide feedback on the Cost Share Agreement With San Bernardino Valley Municipal Water District for Salt and Nutrient Management Planning (SNMP) Phase 3A, in an Amount Not To Exceed $29,405.

Attachment - SNMP Phase 3A Cost Share Letter Agreement
Attachment - WSC_Proposal
Attachments:

DIRECTOR UPDATES

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3 August 27, 2026Water Subcommittee Regular Meeting - Final WS-26-0532 Utilities Updates:

1. West Cheshire Street Septic-to-Sewer Update.

2. Update on the Pressure Reducing Valves (PRV) Project.

3. Rialto Habitat Nature Center (RHNC) Environmental Status Update.

4. Veolia’s Monthly Operations Reports (MOR):
a. August 2026 MOR Executive Summary
b. August 2026 MOR (reporting period June 2026)
c. July 2026 MOR (reporting period May 2026)
VeoliaRWS MOR's Executive Summary_Reporting Period_June 2026_AUGUST REPORT Veolia/RWS MOR's_Reporting Period_June 2026_AUGUST REPORT Veolia/RWS MOR's_Reporting Period_May 2026_JULY REPORT
Attachments:

UPCOMING MEETING/FUTURE DISCUSSION ITEMS

ADJOURNMENT

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4 City of Rialto
Legislation Text
File #: WS-26-0529, Version: 1, Agenda #:

For Water Subcommittee Meeting August 27, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works

CONFERENCE WITH LEGAL COUNSEL - ANTICIPATED LITIGATION
Pursuant to Government Code section 54956.9(d)(2)
Significant Exposure to Litigation
Number of Matters: one (1)
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5 City of Rialto
Legislation Text
File #: WS-26-0534, Version: 1, Agenda #:

For Water Subcommittee Meeting August 27, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works FROM: Nicole Hemmans, Senior Administrative Analyst Minutes from June 25, 2026 Meeting
City of Rialto Printed on 8/21/2026Page 1 of 1
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6 1

CITY OF RIALTO

REGULAR MEETING OF THE WATER SUBCOMMITTEE
June 25, 2026 - 10:00 A.M.

MINUTES

The Regular meeting of the Water Subcommittee of the City of Rialto was held in the Civic Center Council Chambers located at 150 S. Palm Avenue, Rialto, California 92376, on Thursday, June 25, 2026.

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ALL TO ORDER Call to order at 10:00 A.M.

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ROLL CALL Senior Administrative Analyst Nicole Hemmans took the roll call.

Subcommittee Members / City Staff:

Mayor Joe Baca
Mayor Pro Tem Ed Scott
Tanya Williams, City Manager
Yazdan Emrani, P.E., Director of Public Works
Shandy Dittman, Principal Budget & Financial Analyst
Robert Khuu, Assistant City Attorney
Christopher Jensen, Rialto Fire Chief
Nicole Hemmans, Senior Administrative Analyst

Additional Attendees:

Stephen Dopudja, Dopudja & Wells Inc.

John Schatz, Legal Consultant
Peter Luchetti, RWS/Table Rock
Marlon Brosco, RWS/Veolia
Soheil Sadighi, RWS/Veolia
Jason Howard, RWS/Veolia

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PUBLIC COMMENTS Public comment received on June 25, 2026:

♦ None.

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7 2

APPROVAL OF MINUTES

WS-26-0424 – Approval of May
28, 2026, meeting minutes.
(ACTION)

Mayor Baca asked if there were any comments pertaining to the minutes.

♦ None

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NEW BUSINESS ITEMS

WS-26-0432 – Update on Capital
Improvement Project.

The Water Subcommittee received an update on the Capital Improvement Projects from Veolia/RWS.

Questions & Comments
♦ A report-out following the meeting was suggested to address the questions and concerns raised during the CIP update.

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WS-26-0431 – Update on the
Cactus Basin Recharge.

Staff provided an update on the Cactus Basin Recharge facilitation process, which is being led by the San Bernardino Valley Municipal Water District and the County of San Bernardino. This item
was previously
requested to be brought back to the Water Subcommittee.

Questions & Comments
♦ The current objective of the facilitation process is to reconcile the four groundwater models and obtain agreement among the
participating agencies regarding the appropriate modeling approach.

♦ Mayor Pro Tem inquired about why the parties have not yet reached an agreement on a single model.

o Mr. Dopudja advised that t he various models generally produced similar results and the San Bernardino Valley Municipal Water District's model appears to provide the most detailed analysis.

o The goal is to reach an agreement by next summer, with the facilitator working to schedule additional meetings for the full working group.

The Water Subcommittee received and discussed the update. No formal action was taken.
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WS-26-0423 – Update on the
Bloomington Business Park
Extraterritorial Agreement.

Staff provided an update on the Extraterritorial Agreement (ETA) with Bloomington Business Park and advised that t he Bloomington Business Park ETA appears technically and operationally feasible.

Questions & Comments
♦ Mr. Dopudja suggested doing a review on the 1.3x fee factor and consider developing a Sewer ETA Master Plan.

♦ Mayor Pro Tem inquired whether a Community Benefit
Agreement is associated with the City’s Extraterritorial Agreement?

o Ms. Williams advised that she would consult with the
Community Development Department and follow up on
the matter.

Th Water Subcommittee’s feedback was to move this item forward in the ETA process.

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WS-26-0422 – Update on the
Septic to sewer Project.

Staff provided an update on the Septic-to-Sewer grant funded project for $319,000 with SAWPA. While the proposed sewer extension appears feasible, the primary challenge is encouraging affected property owners to connect due to the significant cost of individual connections.

Questions & Comments
♦ Staff advised that w hile the proposed sewer extension appears feasible, the primary challenge is encouraging affected property owners to connect due to the significant cost of individual connections.

The Water Subcommittee’s feedback is for staff to conduct a Resident Outreach to educate the residents on the benefits of the project and for staff to identify financing options that could make the conversion more feasible for property owners.

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9 4

WS-26-0425 – Utilities Update

The Water Subcommittee received the following updates:

1. Update on the FEMA/Cal OES Hazard Mitigation Grant Program (HMGP) Sub application AP-1974.

2. Veolia’s Monthly Operations Reports (MOR):
a) June 2026 (reporting period April 2026)

The Water Subcommittee received this update. No formal action was taken.

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UPCOMING MEETINGS/OTHER

DISCUSSION ITEMS
It was decided that the Subcommittee will go dark during the July meeting and scheduled The next meeting for Thursday, August 27, 2026, at 10:00 a.m.

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ADJOURNMENT The meeting adjourned at 10:22 PM.

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11 City of Rialto
Legislation Text
File #: WS-26-0530, Version: 1, Agenda #:

For Water Subcommittee Meeting August 27, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani P.E., Director of Public Works FROM: Nicole Hemmans, Senior Administrative Analyst
Staff Request Water Subcommittee Receive an Overview of the Labor Reset Process and Result, and Provide Feedback on the 2020 - 2023 Labor Component Reset and Associated Staffing Adjustments Under the Rialto Water Services Operations and Maintenance Subcontract.

BACKGROUND
On March 27, 2012, the City Council and the Rialto Utility Authority (RUA) approved a Concession Agreement (CA) with Rialto Water Services, LP (RWS), operated by Veolia North America (Veolia).

Articles VIII and XIV of the Concession Agreement establish the compensation framework for wastewater and water services, including the Labor Component.

Sections 8.11 and 14.11 of the Agreement require that the Labor Component be recalculated every fourth (4th) Contract Year using the methodology defined in the Operations and Maintenance Subcontract (OMS).

On March 26, 2026, Staff presented the proposed 2020-2023 Labor Component Reset and associated staffing adjustments to the Water Subcommittee for review and feedback.

Staff have worked with RWS to finalize the calculations to confirm the Fixed Labor Service Fees for the next four-year period 2024 to 2027. The Water Subcommittee at a previous meeting concurred with the hiring of the Lab Tech position. Both staff and RWS are in agreement with these labor- related fees and the three additional positions as proposed by RWS.

ANALYSIS/DISCUSSION
The Labor Component Reset remains under review by Staff and Veolia. An update to the Labor Reset will be presented to the Water Subcommittee for consideration as the review and coordination process continues.

ENVIRONMENTAL IMPACT
The proposed action is not a “Project”as defined by the California Environmental Quality Act (CEQA). Pursuant to Section 15378(a), a “Project”means the whole of an action, which has a City of Rialto Printed on 8/21/2026Page 1 of 2
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12 File #: WS-26-0530, Version: 1, Agenda #:
(CEQA). Pursuant to Section 15378(a), a “Project”means the whole of an action, which has a potential for resulting in either a direct physical change in the environment, or a reasonably foreseeable indirect physical change in the environment. According to Section 15378(b), a Project does not include: (5) Organizational or administrative activities of governments that will not result in direct or indirect physical changes in the environment.

GENERAL PLAN CONSISTENCY
Approval of the proposed action also complies with the following City of Rialto Guiding Principles, General Plan Goals and Policies: “OurCity government will lead by example, and will operate in an open, transparent, and responsive manner that meets the needs of the citizens and is a good place to do business.”

LEGAL REVIEW
The City Attorney's Office has reviewed the staff report.

FINANCIAL IMPACT
Operating Budget Impact
There is no fiscal impact associated with receiving this update at this time.

The proposed staffing adjustment includes three wastewater-dedicated positions, two Collection System Technicians and one Laboratory Technician, with an estimated ongoing annual cost of approximately $286,000. On average, each position represents a fully burdened cost of approximately $90,000 to $100,000 annually.

Overall, the proposed staffing adjustment represents a modest increase to the systemwide labor component, primarily supporting regulatory compliance, increased operational demands, and system growth.

Capital Improvement Budget Impact
There is no impact on the Capital Improvement Budget.

Licensing
This action does not require a business license.

ATTACHMENTS

1. Veolia Labor Reset Memo - 8/18/2026
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13 MEMORANDUM

DATE:

August 12, 2026
TO:

Peter Luchetti, Principal & General Manager for Rialto Water Services (RWS) and John Rossi, Senior Consultant for the City of Rialto
FROM:

Veolia Rialto Management Team
SUBJECT:

2024 Periodic Reset of Labor Component
I. Labor Reset Requirement in the Operations and Maintenance Subcontract

According to the Operations and Maintenance Subcontract (OMS, Section 8.11 & 14.11) and Concession Agreement (CA, Section 8.11 & 14.11), the periodic reset of the labor component is required at the conclusion of every fourth Contract Year. Due to delays, the initial Labor Reset scheduled for 2016 was necessarily deferred. Thus, the Parties (Veolia, RWS, and the City) combined the 2016 and 2020 Labor Resets. The combined Labor Resets were approved and established the current organizational structure of 49 employees, which took eﬀect on January 1, 2020, and remained in eﬀect through 2023. The next Labor Reset should have been completed in 2024, but again due to delays it has been postponed for almost three years. This memo outlines how the Parties plan on completing the 2024 Labor Reset with the added positions starting in September 2026.

The purpose of the labor reset is to include ﬂexibility in the long- term OMS and acknowledge labor cost variances based on the prior four and next four years of the operation. At the same time, the labor reset interval provides predictability and budgetary stability to the City for 4 -year periods. Through the CA, Veolia was provided staﬃng levels originally envisioned in the form of an organizational chart (Schedule L) and an initial ﬁxed labor fee. The CA also provided Veolia with the autonomy to add staﬀ for operational necessity and service level expectations, follow Prudent Industry Practices and/or to be in conformance with applicable laws as required under OMS Sections 5.1(b) and 11.1(b) and CA Sections

5.1(b) and 11.1(b). It is important to note that Schedule L was provided merely as a guideline and documentation of initial conditions as it was very necessary to ramp up staﬃng in order to achieve the desired service level.

The Sections of the OMS governing the reset are 8.11 (WW) and 14.11 (Water). For purposes of this memo, the Sections pertaining to Wastewater are referenced; however, the operative provisions of Wastewater and Water are the same.

Following the conclusion of every fourth (4th) Contract Year, the Wastewater Labor Component shall be reset to an amount that is equal to the sum of the following: (i) the average annual Wastewater Labor Expense during the immediately preceding four (4) Contract Years, as adjusted in accordance with Section

8.7; plus (ii) an adjustment based on the anticipated changes in the Wastewater Labor Expense that Contractor reasonably believes are likely to be incurred during the succeeding four (4) Contract Years (“Wastewater Additional Labor Adjustment”); plus (iii) the Contractor Charge with respect to the subtotal of the foregoing clauses (i) and (ii).

The 2024 reset includes the averages for the preceding four Contract Years of Labor Expense (2020-2023) and anticipated next four years (2024-2027) of labor expense as detailed in the contract language. The 2024 reset includes the averages 14 for the preceding four Contract Years of Labor Expense (2020 -20 2 3) a n d a n ti c i p a t e d n e x t f ou r y e a r s ( 20 24-2027). For purposes of computing the labor expense, the deﬁnition used in the OMS applies:
“Labor Expense” means all costs and expenses incurred by Contractor to provide labor consistent with the S t a ﬃ n g P l a n t h a t i s a s s o c i a t e d w i t h ( i ) t h e o p e r a ti o n o f t h e U ti l i t y F a c i l i ti e s , ( i i ) t h e p e r f o r m a n c e o f Maintenance, (iii) Repair Cost, (iv) Replacement Cost, (v) Operating Repair and Operating Replacement; and (vi) any other Services except for that portion of Services related to design and construction as noted below.

The term “Labor Expenses” includes costs and expenses associated with the recruitm ent, training, tuition reimbursement, continuing education, licensing of personnel, payment of salaries, wages and beneﬁts (inclusive of all taxes, insurance, medical, disability and health beneﬁts, pensions, retirement plan costs, contributions, assessments, sick time, vacation time, overtime, premium time, holidays, and continuing education), temporary labor, expense reimbursements, termination and severance payments, all of which are consistent with Contractor’s standard employment practices, any colle ctive bargaining agreement or prevailing market rates in the water and wastewater treatment industry for Southern CA.

The labor reset not only includes the average annual Labor Expense during the preceding four years and an adjustment based on the anticipated changes in the Labor Expense in the next four years, but it also includes the Contractor Charge for overhead and proﬁt ﬁxed at 18%. According to the OMS, the deﬁnition of Contractor Charge states:

“Contractor Charge” means the portion of the Compensation to be paid to Contractor in the form of a mark- up that is applied to certain amounts due as Compensation (prior to application of the Contractor Charge) as expressly set forth in this O&M Subcontrac t i n t h e t o t a l a m o u n t o f e i g h t e e n p e r c e n t ( 1 8 % ) , t h a t i s comprised of ten percent (10%) for costs associated with overhead and administration and eight percent (8%) for proﬁt.

In short, each labor reset for both Water and Wastewater is the average of the past four years of Labor Expense, plus an adjustment based on the anticipated changes made to the Labor Expense in the next four years, plus an 18% charge applied to the total. The result is compared to the current ﬁxed labor component received by Veolia per the contract. If the labor reset is higher than the Labor Component of Veolia’s ﬁxed fee, then the ﬁxed fee is increased.

II. Veolia Staﬃng Changes since the completion of the 2020 Labor Reset

Currently, the staﬃng plan shows 49 employees under the CA/OMS, see Exhibit A for the current organizational chart. The org chart includes the two (2) perchlorate operators, who are not included in the Labor Component nor Labor Reset calculation as they are accounted for in the separate perchlorate contract between the City and Veolia. For the purposes of the 2024 Labor Reset, three (3) positions have been requested to be added to the current organizational chart. They are: (1) a Lab Technician, and (2 & 3) two (2) collection technicians. These positions are being added due to Change in Law and/or Change in Scope in accordance with the CA/OMS as outlined in the reasonable substantiation memos attached as Exhibit B.

III. Comparing Rialto Staﬃng Levels to other Cities
Veolia completed a review of the wastewater systems in the areas surrounding the City of Rialto, CA and learned that the Rialto project is understaﬀed in the collection department by comparison. This analysis reviewed the budgets and staﬃng levels per MGD of the following cities: El Cajon, Hesperia, Compton, Chino Hills, Vista, Hemet, Fontana, Redlands, San Bernardino, Yucaipa, and Westminster. It is diﬃcult to make a side-by-side comparison, since MGDs (at design capacity) vary between locations, po pulation, service area, and because many city operations throughout California include programs not covered in Rialto (and vice versa). In review, Rialto is signiﬁcantly understaﬀed as demonstrated in Exhibit C.

15 IV. Labor Reset Calculation according to Concession Agreement

Impact of the Labor Reset on labor compensation, separately stated for Water and Wastewater The labor reset calculations resulted in:

1. Annual ﬁxed labor component value of $3,763,956.50, which represents a 4.15% increase when compared to 2024 escalated rates.

2. Annual ﬁxed labor component value of $3,685,333.29 , which represents a 6.87 % reduction when compared to 2024 escalated rates.

Upon acceptance, the labor reset, the labor component ﬁxed fee starting September 2026 will be based on the 2024 calculated values listed above, escalated through 2026:

1. Water Labor Component: $4,053,454.77 annually or $337,787.90 monthly

2. Wastewater Labor Component: $3,967,896.30 annually or $330,658.02 monthly

The resulting ﬁxed fee labor compensation amounts listed below show the before-and-after eﬀect of the reset compared to actual billed rates for January 2024 - August 2026, see Exhibit D for the Labor Reset calculation.

V. Conclusion

Veolia proposes adding three (3) new positions to the CA/OMS staﬃng plan due to a Change in Scope and/or Change in Law. The fully burdened impact of these three (3) positions amounts to $284,971.63 annually. Additionally, the labor component is subject to annual escalation utilizing 100% of the ECI change per the CA/OMS. While this Labor Reset should have been completed in 2024, the Parties are using September 2026 as the start date for the three (3) added positions in the labor reset calculation. The labor reset calculation was originally drafted by the City’s Financial Consultant, FG Solutions, during the combined 2016-2020 labor reset, and the same model/calculation is being utilized for the 2024 labor reset. The impacts to the Labor Component are delineated in Section IV. After review, we welcome any questions the City or RWS may have so that the City’s consultants can report to the Water Subcommittee members that we are in agreement on the Labor Reset calculations and impacts.

16 17

EXHIBIT B
Dear City of Rialto,
Veolia is writing to formally request the addition of two new staff members to the Collections team. We cite a significant increase in workload and growing project demands that are currently exceeding the capacity of our existing team.

Reasons for Justification:

Increased Project V olume:

Over the past several years the collections department has seen on average a 30% or more increase in their day-to-day workload. The additional workload consists of three new lift stations (Valley, El Rancho, and Frisbee) with a fourth new lift station proposed on the northeast corner of Pepper Ave. There has also been an unknown amount of new sewer main lines added to the City as a result of growth within the city limits mainly contributed by residential construction and commercial developments. With the decommissioning of plants 1-4, housekeeping is needed to ensure that there are no vector or odor complaints. All of these factors have created a significant impact on the staff's ability to focus on contractual deliverables.

Critical Gaps:

The additional staff members would address specific gaps in our teams, both on Veolia’s and the city side. Particularly oversight of finished underground constructions and the tracking of new sewer infrastructure to update the GIS in regards to the industry standards [staffing needed for operating the GapVax Vacuum/Jetter truck, CCTV Van, responding to DigAlerts, and station rounds for the nine current lift stations throughout the City of Rialto ].

Proposed Roles and Impact:

Collection Systems Tech:

Maintains the municipal wastewater collection system by cleaning sewer lines of grease, roots, and other debris with vacuum / jetter truck and other rodding equipment.

Performs sewer maintenance work of increasing difficulty and provides technical assistance, coordination, and training to entry-level and temporary staff as assigned.

Evaluates the need for repairs to sewer lines, pipes, pipe connections. 18 Operates the CCTV equipment to search for illegal sewer line usage and to check for overall conditions.

Monitors gas and oxygen levels in confined spaces. Performs routine maintenance to lift station pumps and all auxiliary equipment.

Financial Considerations:
● We have carefully analyzed the potential cost of adding these new positions and believe the increased revenue generated by improved efficiency and capacity will significantly outweigh the additional expense.

Conclusion:

Adding two new staff members to our team is essential to maintain our current service level while maintaining safety for our staff. This increase in staff will give us the opportunity to response to critical callouts during business hours to minimize negative environmental impacts, while preventing potential burnout among our existing staff.

Please let me know if you have any questions or require further details.

Sincerely,
Soheil Sadighi
General Manager
Veolia
Dear City of Rialto,
Veolia is writing to formally request the addition of a new staff member for our laboratory. We cite new regulatory requirements and process control needs.

Reasons for Justification
TNI Standard:

The laboratory is certified by CA ELAP which has adopted a new set of standards (2016 TNI Standard) the laboratory must adhere to starting 2024. The laboratory will be audited against this standard this year. In 2023, a third party auditor performed a gap assessment to identify necessary changes for compliance with the new standard. Based on the findings, the lab is required to perform additional internal audits and reviews on a regular schedule, implement new procedures for document review and equipment verifications, and provide additional 19 training to staff. It is also strongly recommended for all laboratory data to undergo a secondary review by an experienced person. The time required for our Lab Supervisor to perform these functions will take away from time that is currently spent on laboratory analysis.

The TNI standard also mandates the lab to designate a Technical Manager to oversee laboratory operations and monitor quality control and validity of laboratory results. This person must meet specific educational and experience requirements. Our Lab Supervisor is designated to fill this role, however “if [the Technical Manager is] absent for a period of time exceeding fifteen (15) consecutive calendar days shall designate another staff member meeting the qualifications of the technical manager(s) to temporarily perform this function” (2016 TNI Standard Rev. 2.1, V olume 1, Module 2, Section 4.1.7.2).

Process Control:

The laboratory is working to analyze more process control samples in-house that were previously sent to a sublab for analysis. The standard turnaround times for sublabs is 10 business days whereas in-house analysis allows for same day results. This gives the operators real-time data to make informed decisions and allows them to take a more proactive approach handling wastewater operations.

Critical Gaps:

The additional staff member would fill the role as the primary analyst for the lab, allowing our Lab Supervisor sufficient time to ensure the new TNI requirements are met to maintain our certification. They will also be trained to serve as the back-up for the Technical Manager role.

The additional staff will also allow for cross-training with the IPP coordinator. This will allow the program to have an adequate transfer of knowledge and a back-up in place, which is currently not in place.

Proposed Role and Impact:

Laboratory Technician:

Performs routine and non-routine procedures, including analysis and sampling according to specified methodology as described in the SOP
20 Follows QA/QC procedures as outlined in the Laboratory Quality Program Manual and performs corrective action when needed.

Performs monitoring, preventive maintenance, and calibration of on-line meters.

Serves as the Technical Manager for the lab in the absence of the Lab Supervisor (when designated)
Financial Considerations:
● We have carefully analyzed the potential cost of adding this position and believe the ability to maintain our laboratory certification and meet regulatory requirements without compromising on sample analysis will outweigh the additional expense.

Conclusion:

Adding a lab technician to our team will give us the labor needed to meet the new requirements of the TNI Standard while also performing process control analyses that help our operators make critical decisions for the plant.

Please let me know if you have any questions or require further details.

Sincerely,
Soheil L. Sadighi
General Manager
Veolia
21 EXHIBIT C
Here's a list of Citys in Southern California with populations between 90k- 100k and the number of Collection staff responsible for sewer lines. All systems are sanitary only and not combined storm water/sanitary systems.

City Collections Employees Miles of Sewe rPump Stations

Rialto 4 265 9 (+2)

El Cajon 9 200 0

Hesperia 9 150 2

Compton 6 147 0

Vista 8 316 4

Chino Hills 7 200 8

Hemet 4 125 3**

Fontana 29*** 450 8

Redlands 7 247 1

San Bernardino 11 467 15

Yucaipa 15 228 7

Westminster 6 174 4
* Totals do not include management/supervisor
positions
** Pump stations are on SCADA
*** Public works Utilities and Streets handles all sewer line cleaning, spills, and repairs 22 City of Rialto
Legislation Text
File #: WS-26-0531, Version: 1, Agenda #:

RECOMMENDATION:

Staff recommends that the Water Subcommittee receive an update on the River Ranch Basin Recharge.

BACKGROUND:

The City of Rialto, West Valley Water District, and Fontana Water Company are retail water agencies providing water services within their respective service areas and have wells located in the Lytle Creek Basin, which is a subbasin to the San Bernardino Basin, as part of their respective water supply portfolio. The San Bernardino Municipal Water District (Valley District), a regional water agency, is a State Water Contractor with access to State Water Project (SWP) supplies, which is a primary supplemental water source to the region.

Valley District and the three above mentioned water agencies (collectively “Water Agencies”) are interested in enhancing recharge of SWP supplies and stormwater in the Lytle Creek Basin. These Water Agencies are parties to the San Bernardino Basin Groundwater Council (Council) and each pay their respective proportionate share to the Council for uses on purchases of SWP supplies for recharge and costs related to operation and maintenance of facilities for recharge in the San Bernardino Basin.

ANALYSIS/DISCUSSION:

As part of the River Ranch Development, Lennar Homes constructed three (3) stormwater detention basins-Basin 0, Basin 1, and Basin 2. Upon completion of the development, Basin 0 is anticipated to be transferred to Lytle Development, while Basins 1 and 2 are anticipated to be transferred to the Homeowners Association (HOA) for long-term operation and maintenance.

The Water Agencies and Lennar Homes have expressed interest in collaboratively utilizing the onsite detention basins to enhance stormwater management and State Water Project (SWP) recharge.

Under the proposed arrangement, the Water Agencies, through the City Council, would be responsible for the long-term operation and maintenance activities associated with SWP recharge, including, but not limited to, scarifying basin bottoms, maintaining slope vegetation, and performing other related recharge activities. Flood control-related responsibilities would remain with the respective basin owner and would include, but not be limited to, operations during storm events, storm debris removal and clearing, stormwater flow management, and applicable permitting City of Rialto Printed on 8/21/2026Page 1 of 2
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storm debris removal and clearing, stormwater flow management, and applicable permitting requirements. Lennar Homes or its successor, including the HOA, would remain responsible for the operation and maintenance of areas outside the top of the basin slopes and within the respective basin parcels.

Exhibits A & B on Attachments 1 & 2, identify the location of the SWP supply facilities and their proximity to the River Ranch detention basins. The Water Agencies are currently negotiating a long- term facility use agreement that would establish the respective responsibilities and terms for utilizing the basins for SWP recharge. The agreement is anticipated to be presented to the Water Subcommittee and City Council for consideration prior to the end of 2026.

ATTACHMENTS

1. Exhibit A

2. Exhibit B
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26 City of Rialto
Legislation Text
File #: WS-26-0548, Version: 1, Agenda #:

For Water Subcommittee Meeting August 27, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani P.E., Director of Public Works FROM: Nicole Hemmans, Senior Administrative Analyst
Staff Request Water Subcommittee Provide feedback on the Cost Share Agreement with San Bernardino Valley Municipal Water District for Salt and Nutrient Management Planning (SNMP) Phase 3A, in an Amount Not To Exceed $29,405.

BACKGROUND
The Upper Santa Ana River Watershed contains interconnected groundwater basins that provide an important water supply to communities throughout the Inland Empire. Water quality objectives for salt and nutrients, including total dissolved solids (TDS) and nitrate, are established by the Santa Ana Regional Water Quality Control Board (Regional Board) through the Santa Ana River Basin Plan.

Regional water agencies and stakeholders have collaborated through the Salt and Nutrient Management Plan Work Group (SNMP Work Group) to evaluate cumulative impacts to groundwater quality and support implementation of water supply, recycled water, stormwater capture, recharge, and other water resource management projects. The City of Rialto has previously participated in the regional SNMP technical effort. In February 2021, the Rialto City Council agreed to pay Rialto's proportionate share of costs associated with the Phase 1 and Phase 2 SNMP technical studies.

SNMP Phase 1 and Phase 2
Water Systems Consulting, Inc. (WSC), together with its Geoscience team, was selected in 2021 to perform the Upper Santa Ana River Watershed Salt and Nutrient Management Strategy Study. The study consisted of three phases: Phase 1 - Water Quality Characterization; Phase 2 - Project Planning and Impact Analysis; and Phase 3 - Development of the SNMP. Phases 1 and 2 were completed and included technical memoranda addressing groundwater quality and predictive modeling.

The Phase 2 modeling used the Integrated Santa Ana River Water Quality Model to evaluate various projects and management strategies. The modeling projected TDS conditions through 2045 and estimated that approximately 20 percent of the available TDS assimilative capacity would be consumed between 2039 and beyond 2045, depending upon the scenario. Extrapolation of the City of Rialto Printed on 8/21/2026Page 1 of 4
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consumed between 2039 and beyond 2045, depending upon the scenario. Extrapolation of the projections indicated that the applicable TDS Water Quality Objective would not be exceeded until approximately 2053 to 2070, depending on the scenario.

Bunker Hill-B Salinity Management Feasibility Study
As Phase 2 was being completed, the Bunker Hill Regional Recycled Water Coalition formed to evaluate the use of recycled water recharge in the Bunker Hill-B Groundwater Management Zone while managing potential impacts from TDS and nitrate.

In response to requirements associated with the Sterling Natural Resource Center recycled water recharge permit, the Coalition commissioned the Bunker Hill Regional Recycled Water Salinity Management Feasibility Study. The Feasibility Study evaluated alternatives for managing salinity associated with recycled water recharge. The Feasibility Study identified that a Regional Desalter may be needed in the future to effectively manage TDS in the Bunker Hill-B Groundwater Management Zone. The study also recommended additional data collection and updated groundwater modeling to inform long-term salinity management strategies and establish appropriate triggers for implementation.

Based on the Feasibility Study, the regional agencies determined that additional technical work should be completed before proceeding with Phase 3. This work is designated as SNMP Phase 3A.

ANALYSIS/DISCUSSION
The proposed SNMP Phase 3A effort will provide the technical analysis needed to determine a long- term salinity management strategy for the Bunker Hill-B Management Zone. The study is intended to support a regional decision on whether to pursue a Subregional Salt and Nutrient Management Plan or advance planning for a Regional Desalter.

Key elements of the Phase 3A effort include:
§ Update groundwater modeling using data through 2023 to evaluate current and projected TDS and nitrate conditions.
§ Assess the impacts of existing and planned recycled water and recharge projects on groundwater quality, including recharge activities in the Rialto-Colton Cactus Basins .
§ Conduct baseline and project-specific modeling scenarios to identify potential changes in TDS and nitrate concentrations over time.
§ Prepare technical memoranda and a Phase 3A Report summarizing the modeling results and recommending a regional path forward.
§ Coordinate extensively with the SNMP Work Group and Santa Ana Regional Water Quality Control Board regarding modeling assumptions, results, milestones, and long- term use of assimilative capacity.
§ Use the Phase 3A findings to establish the scope and direction of subsequent Phase 3B work, including any potential actions related to a Regional Desalter.

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§ Rialto's participation is limited to a maximum contribution of $29,405. Any increase in Rialto's financial obligation would require the City's prior written approval.

Overall, Phase 3A is a technical and planning effort-not authorization to construct a desalter or other physical facility. The study will provide updated regional groundwater quality information and help participating agencies make an informed decision regarding the most appropriate long-term approach to managing salinity while supporting future water supply, recharge, and recycled water projects.

ENVIRONMENTAL IMPACT
The proposed action is not a “Project”as defined by the California Environmental Quality Act (CEQA). Pursuant to Section 15378(a), a “Project”means the whole of an action, which has a potential for resulting in either a direct physical change in the environment, or a reasonably foreseeable indirect physical change in the environment. According to Section 15378(b), a Project does not include: (5) Organizational or administrative activities of governments that will not result in direct or indirect physical changes in the environment.

Operating Budget Impact
There is no fiscal impact associated with receiving this update at this time.

The City's maximum financial obligation under the proposed Cost Sharing Agreement is $29,405.This amount represents Rialto's equal share of the portion of the WSC Phase 3A technical work allocated to the six Additional SNMP Work Group Agencies.

The Agreement provides that Rialto's contribution may only be used for the SNMP Phase 3A work.

Upon completion, San Bernardino Valley will reconcile consultant invoices and return any applicable unspent funds to Rialto.

Capital Improvement Budget Impact
There is no impact on the Capital Improvement Budget.

Licensing
This action does not require a business license.

ATTACHMENTS

1. SNMP Phase 3A Cost Share Letter

2. WSC Proposal
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30 July 27, 2026

From: Planning and Watershed Resilience Staff, San Bernardino Valley

To: Directors and General Managers, SNMP Cost Share Participating Agencies

Re: Cost Sharing Letter Agreement for the San Bernardino Basin Area (SBBA) Salt and Nutrient Management Planning Phase 3A

Salt and nutrient management planning (SNMP) is an important management activity to protect the long- term sustainability of groundwater supplies . For the San Bernardino Basin Area, Basin stakeholders have been conducting SNMP technical studies on salinity management since 2021. The Phase 1 and 2 work, completed in 2023, included an assessment of total dissolved solids (TDS) and nitrate as well as gr oundwater modeling to estimate future TDS and nitrate concentrations in the Basin. The results quantified the impact of proposed recycled water projects and the benefits of recharging lower -TDS stormwater and imported water in the Basin.

SNMP is a regulatory framework to permit and implement various water resource management projects in the Basin through the Santa Ana Regional Water Quality Control Board. It assesses any impacts with potential long- term basin -wide effects on groundwater quality that result from activities such as projects involving surface water, groundwater, imported water, and/or recycled water, as well as other salt/nutrient contributing activities, through regional groundwater monitoring. SNMP benefits the region by facilitating and incentivizing stormwater capture and water reuse projects that increase water supply while ensuring that such projects are implemented in a manner that fully protects beneficial uses and mitigates any adverse effects on water quality. The proactive nature of SNMP potentially saves the region millions of dollars in water supply and water quality management costs.

Due to project-specific regulatory requirements, a separate yet parallel effort, the Salinity Management Feasibility Study, was completed in 2025. This study was completed by a smaller coalition of water agencies called the Bunker Hill -B (BH-B) Coalition, comprised of East Valley Water District, City of Redlands, San Bernardino Municipal Water Department, and San Bernardino Valley, and was focused on the east side of the Basin also known as the BH-B Management Zone. The Feasibility Study identified that a regional desalter would be needed at some point in the future to effectively manage TDS in the BH-B Management Zone and recommended a salinity management framework that emphasized a need for incorporating additional data and updating the groundwater model analyses to inform long- term strategies and triggers for implementation of various strategies.
31 Phase 3A of the SNMP leverages SNMP Phase 1 and 2, implements the Feasibility Study’s recommendations, and combines the efforts of the SNMP Work Group and BH - B Coalition into one comprehensive effort and technical study. San Bernardino Valley and the Cost Sharing Participating Agencies have jointly prepared and agreed to a Scope of Work and Fees with Water Systems Consulting, Inc. (“WSC” or “Consultant”) to conduct Phase 3A (the “Work”). WSC was selected to complete Phases 1 & 2 in 2021 through a competitive process and the contract had the option to complete a future Phase 3. On February 17, 2026 , the San Bernardino Valley Board of Directors approved an amendment to the contract with WSC for Phase 3A and the cost share agreed to by the Parties whereby Bunker Hill-B Coalition members will pay 50% of the Phase 3A costs, with the remaining 50% equally split among the other six (6) cost sharing Participants.

Project Budget

Cost Sharing Agencies Cost Share
Bunker Hill-B Coalition Members (50%)

1. City of Redlands

2. East Valley Water District

3. San Bernardino Municipal Water Department

4. San Bernardino Valley Municipal Water District
$44,107
$44,107
$44,107
$44,107
Additional SNMP Work Group Participants (50%)

1. City of Colton $29,405

2. City of Rialto $29,405

3. City of Riverside Public Utilities $29,405

4. San Bernardino Valley Water Conservation
District
$29,405

5. San Gorgonio Pass Water Agency $29,405

6. Western Municipal Water District $29,405
TOTAL $352,859

Agreement

1. Effective Date and Term
This Agreement shall be effective on February 17, 2026. The term of this Agreement shall be from February 17, 2026, to December 31, 2028.

2. Engagement of Consultant and Administration of Consulting Services Agreement

2.1 San Bernardino Valley and its staff will administer the contract with WSC and the cost sharing provisions of this Agreement. San Bernardino Valley shall coordinate 32 all aspects of the proposed work with the Consultant and communicate with each Participating Agency, regularly and upon the request of the Participating Agency, regarding the status and substance of the Work . Participating Agency shall be permitted to review and comment upon any report or work product generated by the Consultant before it is accepted as final, or is otherwise made publicly available. The scope of work shall consist of that work referenced in the attached WSC Scope of Work.

2.2 Participating Agency shall provide all non -privileged existing documents, data, information, and assistance within its possession or control reasonably requested by San Bernardino Valley and Consultant during the performance of the Consulting Services Agreement . Participating Agency shall not be required to generate, create, or draft any new documents, mapping, or other materials as a result of any such request, without the Participating Agency’s prior written consent.

3. General Provisions

(a) Cost Sharing
The SNMP Work Group Cost Share Participating Agencies hereby agrees to pay $29,405 each towards the completion of Phase 3A. San Bernardino Valley shall collect from each Participating Agency the full amount of the total cost share of each Participating Agency as provided in Section 3(f) below unless otherwise communicated in writing.

(b) Warranty and Indemnification
Each Party ("Indemnitors") hereby agrees to defend, indemnify, and hold free and harmless the other Parties ("Indemnitees") from and against any and all liability, expense, including defense costs and legal fees, and claims for damages of any nature whatsoever, arising from or connected with Indemnitors' activities under this Agreement. In the event San Bernardino Valley, its directors, officers, employees and agents are made a party to any action or proceeding filed in connection with a challenge to any work prepared pursuant to this Agreement, the Participating Agency shall provide a complete defense to San Bernardino Valley, its directors, officers, employees, and agents and shall reimburse San Bernardino Valley for all costs and expenses incurred as a result of the action or proceeding, including reasonable attorney’s fees.

(c) Notices
Correspondence to be given to any Party may be sent by email or first-class mail, addressed, and delivered as set forth below in the address blocks for each Party.

(d) Representation of Authority
33 Each Party represents to the other that it has the authority to enter into this Agreement and that the individual signing this Agreement on behalf of their respective Parties has the authority to execute this Agreement and to bind their respective Parties to the terms and conditions of this Agreement.

(e) Counterparts
This Agreement may be executed in several counterparts, all or any of which shall be regarded for all purposes as one original and shall constitute and be but one and the same instrument.

(f) Invoicing
San Bernardino Valley will administer the contract with the Consultant and invoice the Participating Agency its full cost share on or before June 30, 2026.

Alternatively, a Participating Agency may request an alternative invoicing arrangement aligned with the fiscal years covered by the agreement . San Bernardino Valley will prepare a final disposition of consultant invoices for Participating Agencies and return unspent funds no later than 90 days after the end of the Agreement term.

(g) Coordination and Cooperation
The Parties acknowledge that they are entering into an Agreement in which the cooperation of all Parties will be required, including the need to periodically meet, confer, coordinate, and collaborate with the Consultant . This Agreement contemplates joint studies and planning, and by entering into this joint funding agreement, no Participating Agency approves, expresses support for, or otherwise makes any commitment, for further funding or otherwise, with respect to the subject matter or recommendations of Phase 3A, or any of the other Phases leading up to it.

BY SIGNING BELOW, THE PARTIES AGREE TO BE BOUND BY THE PROVISIONS

OF THIS AGREEMENT

SAN BERNARDINO VALLEY MUNICIPAL WATER DISTRICT

By: _____________________________
Heather P. Dyer, CEO/General Manager

34 Dated: _____________________________

SAN BERNARDINO VALLEY WATER CONSERVATION DISTRICT

By: _____________________________

Betsy Miller, General Manager

Dated: _____________________________

Attachments:

1. WSC Scope of Work for Phase 3A

2. San Bernardino Valley Board Memo for Phase 3A
35 DRAFT Proposal for Phase 3A of the Upper Santa Ana River Salt and Nutrient Management Strategy Study

Dear Greg,
The Salt and Nutrient Management Plan (SNMP) Working Group selected the WSC/Geoscience Team in 2021 to perform the Upper Santa Ana River Watershed Salt and Nutrient Management Strategy Study (SNMSS). The Study consisted of three phases: Phase 1: Water Quality Characterization; Phase 2: Project Planning and Impact Analysis; and Phase 3: Development of the SNMP. The Team completed Phases 1 and 2 with the work documented in a series of technical memoranda (TMs), culminating in a TM that summarized model assumptions and presented baseline and predictive scenario results for four future alternatives.

The scenarios in Phase 2 evaluated a range of projects and management strategies using the Integrated SAR Water Quality Model. The model results provided TDS projections from 2020 through 2045, which projected that 20% of the TDS assimilative capacity would be consumed between 2039 and beyond 2045, depending on the scenario.

Extrapolation of the projections showed that the Water Quality Objective for TDS would not be exceeded until between 2053 and 2070, depending on the scenario.

As Phase 2 of the SNMSS was being completed in 2023, the Bunker Hill Regional Recycled Water Coalition (Coalition) formed with the primary objective of recharging recycled water into the Bunker Hill B Groundwater Management Zone (BH-B GMZ) to enhance long-term basin sustainability while managing the impacts of salt (as total dissolved solids [TDS]) and nitrate (as N) on ambient water quality (AWQ). In response to a Santa Ana Regional Water Quality Control Board (Water Board) requirement in the Sterling Natural Resource Center recycled water recharge permit, the Coalition commissioned the Bunker Hill Regional Recycled Water Salinity Management Feasibility Study (Feasibility Study) to evaluate a range of salinity management alternatives.

As a result, Phase 2 of the SNMSS ended with a recommendation to pause before beginning Phase 3 while the Coalition completed the Feasibility Study, the results of which would inform the scoping of Phase

3. The Feasibility Study identified that a Regional Desalter would be needed at some point in the future to effectively manage TDS in BH-B GMZ, but also proposed a salinity management framework that emphasized a near

October 16, 2025

San Bernardino Valley
Municipal Water
District

Greg Woodside, PG, CHG
Chief of Planning & Watershed
Resilience
380 East Vanderbilt Way
San Bernardino, CA 92408

WSC Orange County
25201 Paseo De Alicia, STE 290
Laguna Hills, Ca, 92653
P: (949) 528-0960

Michael Cruikshank
P: 714.721.7298
E: [email protected]

36 USARW SNM SS Phase 3 Proposal
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term need for additional data and updated model analyses to inform long term strategies and triggers for implementation of various strategies. Following the updated model analyses, the Feasibility Study identified a decision point for the Coalition (in consultation with the SNMP Workgroup and the Water Board), on whether to proceed with preparation of a Subregional SNMP, or to move forward with implementation of a Regional Desalter as the primary salinity management solution, as summarized in the graphic below, and shown in detail on the Salinity Management Action Timeline included on Page 7 of this proposal.

For the purposes of scoping Phase 3 of the SNMSS for this proposal, we have identified the scope of work needed to get to the decision point as Phase 3A and the scope of work resulting from that decision as Phase 3B. This proposal focuses on Phase 3A because the scope of Phase 3B cannot be confirmed until after Phase 3A is complete.

This Salinity Management Action Timeline was presented to the Water Board on September 30, 2024. The Water Board was generally receptive to the approach and provided two key requests for both the Feasibility Study and the subsequent Implementation Plan:
• Establish interim milestones and check-ins (2025–2027): The Board requested updates to demonstrate progress on the technical work. Since the Water Board is a member of the SNMP Working Group, many of these updates will occur through Workgroup meetings, though the Coalition and the Board may also meet separately on issues specific to the Coalition.
• Clarify model approaches: Provide a description of the Cumulative Antidegradation Model and the SNMP Model, including an explanation of differences in assumptions, methodologies, and results.
37 USARW SNM SS Phase 3 Proposal
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The scope of work proposed herein is referred to as Phase 3A of the SNMSS and intended to address these Water Board requests and the tasks identified in the Salinity Management Action Timeline under the Upper Santa Ana SNMP Workgroup prior to the Subregional SNMP decision point:

1. Update the TDS components of the groundwater model;

2. Model impacts of regional recycled water projects and potential salinity management measures on ambient TDS in the Bunker Hill-B Basin. Potential management measures include a regional desalter, recharge of low TDS water, and best management practices the impacts of regional recycled water projects and potential salinity management measures on ambient TDS in the Bunker Hill B Basin; and

3. Prepare SNMSS Phase 3A Report for submittal to the Regional Board.

Based on the analysis and the Regional Board’s feedback during the process, the SNMSS Phase 3A Report will identify the proposed path forward for the Coalition and SNMP Workgroup, which will serve as the basis of the scope for Phase 3B.

Sincerely,
Water Systems Consulting, Inc.

Michael J. Cruikshank PG, CHG Laine Carlson, PE
Project Manager Principal in Charge

38 USARW SNM SS Phase 3 Proposal
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Scope of Work
Task 0 Project Management

0.1 Project Administration
• Prepare and submit monthly progress reports with each invoice, assuming a 21- month project duration.

0.2 Routine Coordination with Staff of the Coalition
• Conduct monthly one-hour virtual meetings with the Coalition to provide project updates, discuss methodologies, review data needs, present interim results, and address other coordination needs.
• Maintain ongoing communication with Coalition members as needed via phone and email.

Task 1 Groundwater Model Updates
Geoscience was previously tasked by the San Bernardino Valley Municipal Water District (San Bernardino Valley) with constructing a groundwater flow model for the Upper Santa Ana Valley Groundwater Basin by integrating existing groundwater and surface water models. This model, known as the Integrated SAR Model was used as a management tool to determine what factors contribute to reduced streamflow in the SAR and to evaluate potential effects from proposed projects on streamflow and groundwater levels across the basin, including Upper SAR Habitat Conservation Plan (HCP) “Covered Activities”.

The Integrated SAR Model will be used to estimate the probable effects of planned recharge projects on ambient groundwater quality. The model, previously applied in Phases 1 and 2 of the SNMSS, will be updated through 2023 and a revised baseline alternative and up to four project alternatives will be developed, and analyzed. Results from this effort may also support development of a Subregional SNMP, if pursued under Phase 3B.

1.1 Data Collection and Analysis
Geoscience will compile and summarize the volumes and qualities of stormwater and State Water Project water recharged at each percolation basin in the San Bernardino Basin (SBB)_ from 2020 to 2023. Geoscience will utilize this data to extend the record from the 1978 -2019 period previously compiled. The water quality record will be brought through 2023 for stormwater and State Water Project recharge. Water quality data from Ambient Water Quality updates for TDS and nitrate-N will be collected and compiled to extend the observed record through 2023.

1.2 Update Solute Transport Model through 2023
Geoscience was contracted by the San Bernardino Valley Water Conservation District (WCD) to update surface and groundwater flow model portions of the Integrated SAR Model through 39 USARW SNM SS Phase 3 Proposal
SBVMWD | 4
December of 2023 to evaluate WCD recharge activities in the SBB. Geoscience will update the Integrated SAR Model TDS and nitrate-N solute transport models (MT3D-USGS) to cover the period from1966 to 2023 to extend the calibration period of the solute transport models to coincide with the updated surface/groundwater flow models. Model calibration over the new model period from 1966 to 2023 will be evaluated and compared to the previous calibration metrics for both TDS and nitrate-N. The volume-weighted annual average TDS and nitrate concentrations will be calculated and tabulated, as well as concentration of TDS and nitrate-N at observation wells. Then, results will be compared to applicable water quality objectives in the SBBA.

Task 2 Develop and Evaluate Scenarios to Characterize Probable Impacts to Groundwater Quality from
Recycled Water Projects

2.1 Develop Model Scenarios
The Project Team will work with the Bunker Hill-B Coalition and the SNMP Workgroup to confirm the current and planned recycled water projects (including recharge locations, recharge quantities, and recycled water qualities) to be included in the scenario analysis. The most recent groundwater pumping projections from the 2025 Urban Water Management Plans will be incorporated into the groundwater model scenarios. Geoscience will summarize the draft modeling assumptions before preparing the model inputs. Once confirmed, Geoscience will prepare the final model input assumptions and run the model scenarios. Geoscience anticipates incorporating updated project assumptions for the following:
− East Valley Water District's Sterling Natural Resource Center − San Bernardino Water Department’s Tertiary Treatment System − Yucaipa Valley Water District's projects including discharge to San Timoteo Creek − City of Beaumont's discharge to tributaries of San Timoteo Creek − City of Riverside's planned discharges to Reach 3 of the Santa Ana River above MWD crossing (as part of the HCP implementation strategy) − Recharge in Rialto-Colton at Cactus Basins
− Program for Expansion of Recharge Capacity (PERC) Projects − City of Redlands project

2.2 Groundwater Model Runs and Analysis
A baseline scenario model run without any proposed recharge projects will be performed. Flow and transport simulations will be conducted utilizing a monthly stress period. Results from other predictive scenario runs for recycled water projects will be compared to the baseline scenario results to identify net changes of TDS and nitrate concentrations from planned recycled water projects over the next 20 years (or longer planning period selected by the Project Team).

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Upon confirmation of the scenario assumptions, Geoscience will run up to four (4) scenario runs to identify volume-weighted annual average concentrations of TDS and two (2) scenarios for nitrate after implementing planned recycled water projects. The scenario modeling results will be compared to baseline results to identify net changes on average TDS and nitrate concentrations in the receiving groundwater basins expected to occur as a result of these planned recycled water recharge projects over the planning period. Results from this modeling and analysis effort will include:
• Model-predicted TDS and nitrate concentrations through time with and without recycled water project(s);
• Volume-weighted annual average, rolling 5-year, 10-year, and 20-year average TDS and nitrate concentrations for the baseline run and each scenario run in the applicable GMZs and the larger SBBA GMZ; and
• Chemographs for TDS and nitrate at water supply wells showing recycled water project local impacts on downstream drinking water wells. • Detailed annual water budget analysis including:
o A table summarizing the water budget by year for baseline and each scenario;
o A mass balance table for the BH-B MZ by year for baseline and each scenario;
o Identification of all model locations where TDS or nitrate concentrations are specified; and
o Documentation of any boundary conditions applied in the model for TDS or nitrate.

2.3 Draft and Final Phase 3A Modeling Technical Memorandum Geoscience will prepare a Draft and Final Phase 3A Modeling TM. Results from Tasks 1 and 2 will be summarized in the Draft TM. An electronic copy (i.e., PDF) will be provided and presented to the Coalition and the SNMP Workgroup for review and comment. Upon incorporation of any comments, Geoscience will submit an electronic copy of the Final TM.

Deliverables: Draft and Final Modeling Technical Memorandum

Task 3 SNMSS Phase 3A Report
WSC will prepare a report summarizing the analyses from Phase 1 and Phase 2 of the previous SNMSS work, the Phase 3A modeling report from Tasks 1 and 2 of this effort, and the implications for long term salinity management. The Report will build on the results of the Feasibility Study and the SNMSS work and provide an updated evaluation of the benefits and impacts of pursuing a Subregional SNMP in comparison to implementing a Regional Desalter.

The Report will present a proposed path forward for salinity management in BH-B MZ. If the proposed path forward includes making a request to the Water Board for use of more than 20% of the assimilative capacity (AC) based on the results from the modeling work, the Report will 41 USARW SNM SS Phase 3 Proposal
SBVMWD | 6
also define the necessary commitments and actions, including establishing an action trigger for initiating the Regional Desalter Final Design in coordination with Water Board Staff.

Deliverables: Draft and Final Report

Task 4 Stakeholder Meetings

4.1 Meetings with the SNMP Workgroup
• Conduct a total of five (5) SNMP Workgroup meetings—two in-person and three virtual (via Teams)—scheduled around key decision points such as discussion of model scenario assumptions, review of model results, and release of draft technical memoranda or reports.

4.2 Meetings with Regional Board Staff
• Prepare for Regional Board staff meetings in coordination with Coalition staff. • Conduct two in-person meetings with Regional Board staff to discuss the modeling approach, review model results, and discuss the utilization of assimilative capacity.

Optional Task 1 Additional Solute Transport Model
Calibration (Optional Task)
Geoscience will perform and analyze up to five (5) additional solute transport model calibration runs, in consultation with the Coalition, if the model update assessment indicates that further calibration is needed. An iterative process will be used, with intermediate calibration results evaluated and shared with the project team throughout the effort.

Optional Task 2 Evaluate Two Alternative Scenarios for TDS and One Alternative Scenarios for
Nitrate-N to Characterize Probable
Impacts to Groundwater Quality from
Recycled Water Projects In Bunker Hill A
(Optional, As-Needed)

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To evaluate alternatives in Bunker Hill-A, Geoscience will run up to two (2) scenario runs to identify volume-weighted annual average concentrations of TDS after implementing planned Bunker Hill A projects. The scenario modeling results will be compared to baseline results to identify net changes on average TDS concentrations in the receiving groundwater basins that are expected to occur as a result of planned project alternatives over the next 20 years.

Following the TDS runs, Geoscience will perform one (1) nitrate-N simulation of the preferred alternative.

Results from this modeling and analysis effort will include:
• Model-predicted TDS and nitrate concentrations through time with and without recycled water project(s);
• Volume-weighted annual average, rolling 5-year, 10-year, and 20-year average TDS and nitrate concentrations for the baseline run and each scenario run in the applicable GMZs and the larger SBBA GMZ; and
• Chemographs for TDS and nitrate at water supply wells showing recycled water project local impacts on downstream drinking water wells. 43 USARW SNMSS Phase 3 Proposal
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Schedule

J F M A M J J A S O N D J F M A M J J A S
Routine Coordination with Staff of the Coalition
Task 1.1 Data Collection and Analysis
Task 1.2: Update Solute Transport Model through 2023
Task 2.1: Develop Model Scenarios
Task 2.2: Groundwater Model Runs and Analysis
Task 2.3: Draft and Final Modeling Technical Memorandum TM TM Task 3.1: Prepare Draft and Final Report TM TM
Task 4.1: Meetings with SNMP Workgroup ( 5 Total Meetings) KO 1 2 3 4 Task 4.2: Meetings with the Santa Ana Regional Water Quality Control Board Optional Task 1: Additional Solute Transport Model Calibration Optional Task 2: Evaluate Two Alternative Scenarios for TDS and One Alternative Scenarios for Nitrate-N to Characterize Probable Impacts to Groundwater Quality from Recycled Water Projects In Bunker Hill A Task 4: Stakeholder Meetings
Task 0: Project Management
Optional Tasks
Task 1: Groundwater Model Updates
Task 2: Develop and Evaluate Scenarios to Characterize Probable Impacts to Groundwater Quality from Recycled Water Projects Task 3: Phase 3A Bunker Hill-B GMZ Salinity Management Strategy Study Report TASKS
2026 2027
45 USARW SNMSS Phase 3 Proposal
SBVMWD | 10

Fee Estimate

46 City of Rialto
Legislation Text
File #: WS-26-0532, Version: 1, Agenda #:

For Water Subcommittee Meeting August 27, 2026
TO: Water Subcommittee Members
APPROVAL: Yazdan Emrani, P.E., Director of Public Works Utilities Updates:

1. West Cheshire Street Septic-to-Sewer Update.

2. Update on the Pressure Reducing Valves (PRV) Project.

3. Rialto Habitat Nature Center (RHNC) Environmental Status Update.

4. Veolia’s Monthly Operations Reports (MOR):
a. August 2026 MOR Executive Summary
b. August 2026 MOR (reporting period June 2026)
c. July 2026 MOR (reporting period May 2026)
City of Rialto Printed on 8/21/2026Page 1 of 1
powered by Legistar™
47 June 2026 Monthly Operating Report: EXECUTIVE SUMMARY 48 Customer Service● During this reporting month, the Customer Service team provided call service level of 94.8%.Out of 1,496 inbound calls 1,440 were answered within the first 30 seconds.● Water consumption has increased by 9.6% when compared against previous month. Whencompared against last year, consumption has increased by 5.8%.● Sewer revenue has increased by 1.2% compared to the prior month and increased 5.4% fromlast year.● A total of 23,092 bills were mailed or sent out electronically in June. Billing accuracy was 99.9%with sixteen (16) requiring adjustments after bill generation.● Water revenue has increased 5.3% when compared against the prior month and increased13.0% when compared against previous year. Sewer revenue has increased by 1.2%compared to the prior month and increased by 5.4% from last year. 49 Water
EXECUTIVE SUMMARYHighlights of this months Water O&M report include the following:• The water distribution network achieved compliance with all permit requirements.• No sample anomalies that require secondary sampling.• No significant issues with water availability. The purchasing of water remained consistent and daily equalization tanks levels remained at anticipated volume for customer availability.• The Preventative Maintenance Program, as well as Valve Exercising, continues to identify areas of focus for our Routine Repair and Replace Water Operations Report JUNE 2026
EXECUTIVE SUMMARYHighlights of this months Water O&M report include the following:The water distribution network achieved compliance withall permit requirements.No sample anomalies that require secondary sampling.No significant issues with water availability. Thepurchasing of water remained consistent and dailyequalization tanks levels remained at anticipated volumefor customer availability.The Preventative Maintenance Program, as well as ValveExercising, continues to identify areas of focus for ourRoutine Repair and Replacement.

Combined Remedy Treatment Plant
50 Wastewater● The Treatment Plant met all NPDES compliance parameters.● Major equipment out of service or offline were: the Sludge Holding Tank, AerationBasin #3, and Chlorine Contact Chamber 1 & 2.● Chemical usage was normal.● Power & Natural Gas usage was normal.● All Treatment Plant analytical results are in the M.O.R.● Preventive and routine maintenance was performed.● Collection System preventive and routine maintenance was performed. The systemhad no overflows. 51 Capital Projects UpdateSolids Upgrade Project: AECOM/W.M Lyles started shutdown and demolition of the belt filter presses (Dewatering Building) potable and non-potable water sources and polymer lines. Started demolition of the facia and piping around dewatering building #2. Timeline: Design Completion: February 2026 Construction Start: Q2 2026 Estimated Completion: End of 2027 Advanced Metering Infrastructure Project (AMI) – Aqua-Metric and Concord Utility Services started mass deployment for the AMI Project on July 27th installing radio transmitters and new lids for accounts that require only retrofitting meters to be AMI capable. Meter upgrades will begin once end point (radio) connections are close to being final. As of 8/14/2026 there are 2,634 completed. Timeline: Meter Audit: 2026, Q1-Q2 Installation Phase: 2026, Q2-Q4 Project Completion: 2027 52 Capital Projects UpdatecontinuedSycamore Ave Sewer Trunk Line (Phase 2) – The contractor has installed all 15” sewer main and all force main piping. Work in the impacted school zone (Walnut Ave south to Baseline Ave) has been completed. All work remaining is north of Walnut Ave to the point of connection at the 210 freeway (Sycamore Lift Station) Timeline: Construction Start: June 2026 Substantial Completion: October 2026 Final Completion: Q4 2026Projects are being strategically phased to align with funding, operational priorities, and systemwide coordination: (1) Etiwanda Ave Water Improvement Project (2) Acacia Ave Trunk Line Project (Phase 3) (3) City Well 3A 53 Questions ?
54 Veolia/RWS
Monthly Operations
Report
August 2026
Reporting period June 2026
55 RIALTO

CUSTOMER SERVICE & REVENUE

MONTHLY OPERATIONS REPORT

Reporting Period:

June 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
56 Table of Contents
I. CUSTOMER SERVICE SUMMARY............................................................................................. 3 II. CALL CENTER PERFORMANCE ................................................................................................. 3 III. AUTOMATED SERVICES ........................................................................................................... 3 IV. CONSUMPTION & BILLING ...................................................................................................... 4 A. Consumption .................................................................................................................... 4 B. Billing ................................................................................................................................ 4 V. REVENUE & AGING .................................................................................................................. 5 A. Revenue ........................................................................................................................... 5 B. Aging ................................................................................................................................ 6 C. Bad Debt........................................................................................................................... 6 VI. SERVICE ORDERS ..................................................................................................................... 7 VII. OTHER ACTIVITIES ................................................................................................................... 7 VIII. REVENUE REPORT ................................................................................................................... 7 A. Revenue Summary ........................................................................................................... 7 B. Non Rate Revenue - Extraterritorial Customers ............................................................. 7 C. Non-Rate Revenue – Other ............................................................................................. 8 D. Development Impact Fees ............................................................................................... 8 E. Rialto Basin Water Rights and Leasing ........................................................................... 8 F. Payment Collection Method – Fiscal Year to Date ....................................................... 10 G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison ..................... 10 H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison .................. 10 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date ........................... 11 J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison ............ 11 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging ......................... 12

57 3

I. CUSTOMER SERVICE SUMMARY
During this reporting month, the Customer Service team provided call service level of

94.8%. Out of 1,496 inbound calls 1,440 were answered within the first 30 seconds.

Water consumption has increased by 9.6% when compared against previous month. When compared against last year, consumption has increased by 5.8%.

Sewer revenue has increased by 1.2% compared to the prior month and increased 5.4% from last year.

II. CALL CENTER PERFORMANCE
During this reporting month, service level was 94.8% with 1,440 out of 1,496 being answered within the first 30 seconds. Overall average wait time was thirty (30) seconds.

III. AUTOMATED SERVICES
About 13,572 or 58.7% of the rate payers have created log-ins to access their accounts online. Of these customers, with online access, 48.8% have chosen the e-bill option. This e- bill participation is 9.1% increase from June of the prior year.

85.0% 86.7%

80.1%

90.5% 87.8% 86.6% 88.7% 93.0%

85.0%

92.8% 91.8%

99.6% 94.8%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%
100.0%
110.0%
0 200
400
600
800
1,000
1,200
1,400
1,600
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Answer in 30 Sec 1,256 1,263 1,043 1,277 1,212 1,090 1,257 1,124 973 1,157 1,213 1,229 1,365 Calls Answered 1,479 1,456 1,294 1,411 1,379 1,258 1,417 1,208 1,148 1,247 1,320 1,233 1,440 Service Level 85.0% 86.7% 80.1% 90.5% 87.8% 86.6% 88.7% 93.0% 85.0% 92.8% 91.8% 99.6% 94.8% Call Center Performance
Answer in 30 Sec Calls Answered Service Level
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Number of Bills 22,770 22,792 22,838 22,864 22,875 22,927 22,913 23,045 22,987 23,031 23,030 23,086 23,092 Number of Bill Adjustments (during billing) 18 29 10 7 8 11 27 47 47 32 17 20 16 Automated Over the Phone Payments 2,578 2,596 2,344 2,531 2,560 2,089 2,404 2,326 2,339 2,656 2,170 2,535 2,520 Online Payment 9,800 10,260 8,691 11,224 10,369 7,614 10,432 8,771 10,145 11,774 8,590 10,767 11,979 E-bill Participants 6,074 6,134 6,185 6,233 6,290 6,332 6,372 6,401 6,421 6,476 6,529 6,574 6,626 Auto Pay Participants (New Portal) 4,696 4,728 4,776 4,834 4,881 4,923 4,978 5,025 5,083 5,137 5,169 5,241 5,295 PayNearMe 88 88 88 103 85 80 80 60 81 76 84 81 80
58 4

IV. CONSUMPTION & BILLING
A. Consumption
Water consumption has increased by 9.6% when compared against previous month. When compared against last year, consumption has increased 5.8%.

When first 6 months of year 2026 total is compared against previous year, it is showing decrease of 4% in water consumption. When compared against 2024, it is showing 14% increase.

B. Billing
A total of 23,092 bills were mailed or sent out electronically in June. Billing accuracy was

99.9% with sixteen (16) requiring adjustments after bill generation.

January Feburary March April May June July August Septembe r October November December
2024 Water 206,431 180,655 200,494 182,612 212,666 337,500 324,399 361,294 446,508 312,312 360,721 253,250 2025 Water 259,394 284,167 203,166 212,580 316,422 285,524 323,411 430,678 345,305 310,177 330,460 217,069 2026 Water 253,829 221,382 206,070 241,293 275,797 302,165 0 50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
HCF
Billed Consumption Yearly Comparison Water
January February March April May June July August September October November December 2024 Sewer 55,865 50,136 60,877 55,837 54,976 64,339 64,897 68,143 79,931 67,254 73,871 63,136 2025 Sewer 58,347 65,403 51,489 50,598 58,461 59,483 56,496 69,265 66,908 62,147 69,061 61,468 2026 Sewer 60,658 60,373 45,113 50,563 55,760 60,719
0 10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
HCF (hundred cubic feet)
Billed Consumption Yearly Comparison Sewer
(Commercial Only)
59 5

V. REVENUE & AGING
A. Revenue
Water revenue has increased 5.3% when compared against the prior month and increased

13.0% when compared against previous year. Sewer revenue has increased by 1.2% compared to the prior month and increased by 5.4% from last year.

(
Please consider the scale of the graph as doubled height does not mean double the amount)

January Feburary March April May June July August September October November December 2024 Water Sales $912,498.00 $852,016.00 $881,079.00 $864,955.00 $930,910.00 $1,229,951. $1,194,468. $1,291,723. $1,510,717. $1,170,740. $1,297,360. $1,038,617. 2025 Water Sales $1,059,329.0 $1,249,252.0 $1,039,421.0 $1,064,341.0 $1,341,734.0 $1,257,370.0 $1,358,417.0 $1,622,939.0 $1,420,962.0 $1,330,008.0 $1,387,141.0 $1,083,202.4 2026 Water Sales $1,180,870.9 $1,095,263.7 $1,053,630.3 $1,094,059.8 $1,349,908.4 $1,421,054.5 $-
$200,000.00
$400,000.00
$600,000.00
$800,000.00
$1,000,000.00
$1,200,000.00
$1,400,000.00
$1,600,000.00
$1,800,000.00
Dollars ($)
Annual Water Sales Comparison
January Feburary March April May June July August September October November December 2024 Sewer Sales $2,158,668.0 $2,147,783.0 $2,229,038.0 $2,190,195.0 $2,186,025.0 $2,260,077.0 $2,264,418.0 $2,288,863.0 $2,385,936.0 $2,295,859.0 $2,344,329.0 $2,264,375.0 2025 Sewer Sales $2,227,202.0 $2,415,779.0 $2,331,147.0 $2,322,513.0 $2,384,586.0 $2,384,448.0 $2,367,499.0 $2,463,167.0 $2,440,356.0 $2,408,576.0 $2,460,034.0 $2,404,771.0 2026 Sewer Sales $2,408,925.0 $2,404,957.0 $2,351,579.0 $2,168,676.0 $2,482,965.0 $2,513,027.0 $1,900,000.00
$2,000,000.00
$2,100,000.00
$2,200,000.00
$2,300,000.00
$2,400,000.00
$2,500,000.00
$2,600,000.00
Dollars ($)
Annual Sewer Sales
60 6

B. Aging
The total aging balance has decreased by 13.1% see first table below. For balances >30- days only, water has increased 1.0% and wastewater has increased by less than 1%. Sewer balances are expected to continue rising until end of the Fiscal year 2026.

C. Bad Debt
Seven (7) accounts were sent to collections for a total amount of $2,132.40. These bad debts arise from customers moving out or selling the property and not closing the account with final payments.
$0.00
$500,000.00
$1,000,000.00
$1,500,000.00
$2,000,000.00
$2,500,000.00
$3,000,000.00
$3,500,000.00
$4,000,000.00
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Aging Balances in Dollars ($)
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 WTR $1,432,711.8 $1,518,645.5 $2,039,090.8 $1,720,916.8 $1,542,853.8 $1,648,072.4 $1,430,158.8 $1,656,743.6 $1,604,777.2 $1,307,087.1 $1,386,850.1 $1,750,146.9 $1,338,377.4 SWR $3,484,523.2 $2,007,183.0 $2,577,088.9 $2,513,640.5 $2,396,727.8 $2,706,744.7 $2,735,737.6 $3,152,037.7 $3,287,157.9 $3,260,863.2 $3,382,232.5 $3,676,794.2 $3,380,042.4 Historical Aging Totals
Water and Sewer
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
$2,000
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 Thousands
Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 WATER $485,523 $578,110 $683,117 $661,838 $642,879 $607,605 $670,880 $679,989 $703,428 $538,327 $532,539 $601,016 $607,256 SEWER $1,813,326 $538,015 $676,294 $793,637 $876,236 $943,678 $1,129,440 $1,197,669 $1,415,022 $1,520,726 $1,688,822 $1,646,172 $1,655,536 Aging Balances Over 30 Days Water and Sewer
(April 2021 forward contains both consumption and meter charges) 61 7

VI. SERVICE ORDERS
222 service orders were initiated by the customer service team during the reporting month. Of this total, 59 service orders or 26% were due to occupant changes. 136 service orders were initiated to accommodate water disconnection for non-payment and reconnection of water services when customer set up (or reinstate) a payment arrangement with down payment.

VII. OTHER ACTIVITIES
CS department is operating with one person out on disability. A requisition for temporary replacement has been submitted. No injuries were reported during this reporting period.

Total numbers of 70 disconnections were performed during the June 2026.

VIII. REVENUE REPORT
A. Revenue Summary
Cash Revenue is compiled and reconciled to the me rchant account on a daily basis. Cash receipts and deposits are made daily and internal controls are reviewed regularly to ensure safeguarding of assets and proper recording of all transactions. Total revenue collected in June 2026 is $ 4,609,000 whereas Non-Rate Revenue is $ 134,000; Utility Revenue is $4,404,000 and Tax / Ambulance Revenue at $71,000.

RWS collects Utility User Taxes and Ambulance Fees on behalf of the City of Rialto. The Utility User Tax (UUT) rates are based on the total billed amount, therefore the collection fluctuates as billed amounts change. The total UUT charges collected in Ju ne 2026 and June 2025 are $65,000 and $60,000 respectively. Ambulance Revenue is also collected on behalf of the City of Rialto totaling $6,000 in June 2026 and $5,000 in June 2025.

B. Non Rate Revenue - Extraterritorial Customers
RWS bills the City of Fontana $133,000 each month for extraterritorial sewer usage.

Colton Unified School District is in agreement with RWS to pay $5,000 monthly for sewage connections based on enrollment rates provided each school year.

An extraterritorial agreement to provide se wer service was executed between the City of Rialto and the County of San Bernardino —County Service Area 70, Zone BL (Bloomington).

This housing development project generates extraterritorial sewer service revenue of $20,000 per month.
62 8

The City has an agreement with Social Science Services dba Cedar House Life Change Center to provide extraterritorial sewer service providing sewer revenue of about $5,000 each month.

C. Non-Rate Revenue – Other
Other revenue is generated by leasing space for cell towers to AT&T for $2,073. Sprint lease is at a currently contracted rate of $2,000 each month. Vertical Bridge also provides $2,900 a month of cell tower generated Revenue.

Rialto Bioenergy Solutions subleased a City property for $10,750 a month.

The City and San Bernardino Valley Municipal Water District have entered into a Brine Line Capacity Agreement on January 23, 2021. This agreement pertains to the use of its interest in the SARI Line and discharge of certain brine waste to the SARI Line exclusively from t he operation of Rialto Bioenergy Facilities within the City’s boundaries. The revenue generated in this agreement consists of quarterly rent of $37,500 along with the Fixed Pipeline Capacity Fee of $3,300 per month and Fixed Treatment Plant Capacity Fee o f $3,300 per month. In addition, a variable fee of any discharge costs are also billed.

The San Bernardino Valley Water District (SBVWD) reimburses RWS for water conservation programs provided to customers. A quarterly bill is delivered directly by the City.

D. Development Impact Fees
Development Impact Fees (“DIF”) are paid to the City of Rialto as various developments are completed in the City. As such, the City of Rialto receives monies from the various developments, which is then distributed to RWS. There was no DIF payment received in June of 2025.

E. Rialto Basin Water Rights and Leasing
A Standby Water Lease Agreement between Fontana Union Water Company and City of Rialto is in effect. For the 2024 -2025 Water Year, RWS billed San Bernardino County the amount of $349,264 for the St andby Charges and Production Charge. The County paid and has no further Water Lease obligations in the current year.

In addition, the County is also billed annually for Rialto Well #3’s summertime electricity costs based on peak usage.
63 9

Cash Collections by Payment Method – Rialto Water Services

Transaction Counts for Carrier Deposits, Remote Deposits, UB Bill Conc Service (EBOX), and Lockbox Deposits reflect number of batches deposited to the bank. Transaction counts for credit card POS, IVR, and Pay-Near-Me transactions are per number of customer payments. IVR payments are received and process by Paymentus on the day the transactions are made.

General ledger are posted and accounted for the following day the payments are processed.

Payment Method Description
Transaction
Count JUNE 2026 %
Carrier Deposits Cash deposits prepared per day for transport to US Bank. 21 $ 143,401 3.16% Remote Deposits Scanned batches of checks payments made at the customer service counter 21 311,974 6.87% EBOX Batches of electronic customer payments posted
to customer accounts at US Bank. 21 359,619 7.91%

PAYMENTUS - IVR /
Paymentus / Walk-in
Credit Card payment
Customer payments by credit cards and ACH /
eCheck payments through an Interactive Voice
Response system using a touchtone
phone.Payments originated from Merchant online
service 15,603 2,474,330 54.46% Lockbox Deposits Batches of customer payments mailed in to US Bank's lockbox 21 1,243,334 27.36% Pay Near Me
Cash payment service that allows customers to pay
at a local 7-Eleven, CVS, Walmart or Family Dollar
stores. 85 11,132 0.24% Total Revenue per Bank $ 4,543,790 100.00% Recon to RUA Recap:

Adj detailed in RUA 65,327
Prior mo. Correction
RUA increase in Cash $ 4,609,116
64 10

F. Payment Collection Method – Fiscal Year to Date

G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison

H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison

Jul 2025 Aug 2025 Sept 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 May 2026 Jun 2026 Total % Carrier Deposits 144,793$ 140,286$ 155,654$ 147,234$ 103,022$ 142,623$ 127,207$ 133,155$ 146,021$ 121,408$ 150,596$ 143,401$ 1,655,398$ 3.34% Remote Deposits 499,489 241,420 686,008 995,009 311,584 762,404 510,265 1,020,346 538,267 578,934 1,195,264 311,974 7,650,964$ 15.44% EBOX 407,888 286,741 367,169 378,253 237,351 341,059 269,016 296,667 324,116 274,158 337,761 359,619 3,879,799$ 7.83% Paymentus, IVR, Credit Cards 2,118,383 1,853,657 2,370,061 2,278,360 1,572,041 2,080,662 1,722,987 2,014,094 2,316,170 1,751,601 2,339,456 2,474,330 24,891,803$ 50.22% Lockbox Deposits 1,176,928 904,658 1,003,875 1,162,475 707,921 848,106 822,102 855,632 813,647 732,577 1,085,728 1,243,334 11,356,982$ 22.91% Pay Near Me 11,821 11,616 14,142 11,316 9,254 11,254 5,868 10,941 9,326 9,994 10,706 11,132 127,371$ 0.26% Total Revenue to Bank 4,359,302$ 3,438,377$ 4,596,910$ 4,972,646$ 2,941,173$ 4,186,107$ 3,457,446$ 4,330,835$ 4,147,548$ 3,468,672$ 5,119,511$ 4,543,790$ 49,562,317$ 100.00% NSF (10,757) (15,745) (17,442) (15,892) (14,628) (20,682) (31,415) (19,746) (15,869) (23,415) (13,843) (15,433) (214,865)$ Net deposits 4,348,546$ 3,422,632$ 4,579,468$ 4,956,754$ 2,926,545$ 4,165,425$ 3,426,031$ 4,311,089$ 4,131,679$ 3,445,257$ 5,105,668$ 4,528,357$ 49,347,452$ Jun 2026 Jun 2025 Variance
UUT Water 26,209$ 22,145$ 4,064$
UUT Sewer 38,688 37,806 882
Ambulance 6,026 5,436 590
Total 70,922$ 65,387$ 5,535$
Jun 2026 Jun 2025 Variance
Non-Rate / Extra Territorial
Revenue 133,780$ 278,640$ (144,860)$
Utility Revenue 4,404,414$ 3,806,072$ 598,341
Total 4,538,194$ 4,084,713$ 453,481$
65 11

I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date

J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison

Jul 2025 Aug 2025 Sept 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 May 2026 Jun 2026 Total Non-Rate Revenue
Cell Tower Rent,Llease 21,485 17,154 15,080 53,897 13,580 14,324 4,330 14,897 48,457 89,897 24,712 13,871 331,684 Interest Income - - - - - - - - - - - 1,788 1,788

NRR-FOG - - - - - - - - - - - - - Municipal Water Sales - - - - - 349,264 - - - - - - 349,264 Extra Terr- Sewage 169,483 6,711 107,820 583,011 35,551 174,217 170,577 257,617 144,260 217,674 244,658 96,199 2,207,778 Non-Rate Misc Water - - - - - - 1,032 - - - - - 1,032 Abatement of Expenses - - - - - - - - - - - - - Water Meter Lost/Damaged/Repl 22,650 17,176 13,295 16,075 14,366 1,557 10,659 10,065 10,340 318 927 13,237 130,666 Misc Fees - New Occ., Same Day Svc 10,815 7,182 7,522 9,355 6,949 7,834 6,896 6,779 9,154 7,743 11,338 8,682 100,248 Miscellaneous Revenue - Sewer - - - - - 5 - - - - - - 5 NSF - - - - - - 40 - 13 - - 3 57 Total Non-Rate Revenue 224,433$ 48,223$ 143,717$ 662,339$ 70,447$ 547,200$ 193,534$ 289,358$ 212,224$ 315,633$ 281,634$ 133,780$ 3,122,522 Utility Revenue
Water Penalty 30,460 33,752 31,754 37,988 34,640 29,186 27,933 28,838 33,696 27,479 29,577 32,235 377,537 Sewer Penalty 74,191 48,802 42,100 54,993 40,418 43,022 48,483 41,187 54,314 50,683 68,349 60,338 626,881 Turf Removal, Hi-Eff Rebate (100) - - - - - - (100) - - - - (200) Water Deposits Billed 16,142 15,863 16,027 17,938 13,085 7,527 16,427 13,248 14,730 30,576 10,886 13,843 186,293 Hydrant Deposits 315 158 161 68 - 197 - 702 - - - 1,404 3,005 Sewer Deposits Paid - - - - - - - - - - - - - Sewer Deposits Billed 16,204 16,667 15,480 15,055 12,065 9,677 12,804 12,711 15,481 11,645 10,469 12,550 160,808 Water 1,329,427 1,148,584 1,723,704 1,493,556 835,225 1,291,024 970,084 1,197,349 1,381,042 920,524 1,461,343 1,457,945 15,209,808 Sewer 2,760,649 1,949,745 2,492,623 2,526,711 1,594,009 2,385,765 2,006,500 2,296,925 2,521,401 1,950,578 2,568,080 2,781,898 27,834,884 Unapplied Credits 26,588 50,012 109,984 80,529 180,113 (93,772) 63,577 (141,671) (137,801) 134,188 (8,434) 38,590 301,903 Bad Debt Sewer - - - - - - - 985 292 - 793 - 2,069 Bad Debt Water - - - - - - - - - - - - - Tax Roll Sewer - - - - - - - - 602,811 - 539,031 5,611 1,147,453 Collection Agency - Water - - - - - - - - - - - - - Collection Agency - Sewer - - - - - - - - - - - - - Collection Agency - Misc Water - - - - - - - - - - - - - Total Utility Revenue 4,253,876$ 3,263,582$ 4,431,832$ 4,226,839$ 2,709,556$ 3,672,625$ 3,145,808$ 3,450,175$ 4,485,967$ 3,125,674$ 4,680,093$ 4,404,414$ 45,850,440$ Total Non-Rate + Utility Rev. 4,478,309 3,311,805 4,575,549 4,889,178 2,780,002 4,219,825 3,339,342 3,739,533 4,698,191 3,441,307 4,961,728 4,538,194 48,972,962 Increase to Cash
per Incode
Adjustments
Required to GL
Cash
Fund 660-Sewer Fund 670-Water Total Cash Per
GL
Adjustments To
Match RUA to Bank
Cash/CC/Cks
Deposit To Bank
June 2026 4,609,116 15,206 2,926,528 1,667,382 4,609,116 (65,327) 4,543,790 June 2025 4,150,100 11,594 2,787,013 1,351,493 4,150,100 157,956 4,308,056 66 12

K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging

The total accounts receivable for non- rate and extraterritorial customers is $ 323,000. Of which $138,000 is current and $ 184,000 is past due. The largest balance is City of Fontana consist of $131,000 of current bill and $135,000 of past due bill . Cedar House has satisfied its obligations. Rialto Bioenergy Solutions however has a past 30 days balance of $40,000.

Vertical Bridge holds a $ 10,000 balance consisting of the past due amount of $7,500 of unreconciled delinquencies. Sprint-Nextel has a small net balance due to prior unreconciled delinquencies as well.

To improve collections performance, targeted follow -up should continue on the accounts with overdue balances and reconcile disputed balances. By way of maintaining regular communication with customers carrying amounts over 90 days, older receivables can be reduced and overall aging trends can improve.

Name
Total as of
6/30/2026 Current 31 to 60 days 61 to 90 days >90 days
AT&T - Easton -$ - - - - Cedar House - - - - - CITY OF FONTANA 266,314 135,132 131,182 - - Colton Unified School District - - - - - County of San Bernardino-CSA 70 BL - - - - - Rialto BioEnergy Facilities 40,334 - 40,334 - - Sprint-Nextel 5,530 - - - 5,530 San Bernardino Co Waste System Div - - - - - SB Valley Mun Water District - - - - - Vertical Bridge Holdco, LLC (CIG) 10,665 3,121 - - 7,544 Grand Total 322,842$ 138,252$ 171,516$ -$ 13,074$ 67 1

RIALTO WATER

MONTHLY OPERATIONS REPORT

June 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services

68 2

RIALTO WATER

OPERATIONS AND MAINTENANCE REPORT

Contents
I. EXECUTIVE SUMMARY 3
A. Water Production Totals 4
B. Static Water Levels 6
II. REGULATORY 7
A. Regulatory Submittals 7
B. Sample Site Location Results 8
C. Violations 10
D. Source Water Total Dissolved Solids (TDS) 10
III. HEALTH AND SAFETY 10
A. Monthly Safety Program Overview 10
IV. CHEMICAL USE 10
V. ELECTRICAL USE 11
VI. WATER QUALITY COMPLAINTS 11
VII. OPERATIONS UPDATE 11
A. Operational Wells 12
B. Valve Activity 12
C. Hydrant Flushing 12
D. Sanitary Survey 13
VIII. ASSET MANAGEMENT 13
A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues, Customer call outs , Hydrant hits. 13
B. Major Equipment and/or Machinery Outages 14
IX. RAINFALL TOTALS 14

69 3

I. EXECUTIVE SUMMARY
In the month of June, the water distribution network achieved compliance with all permit requirements. There were no sample anomalies that required secondary sampling. There were no significant issues with water availability and the purchasing of water remained consistent and daily equalization tank levels remained at anticipated volume for customer availability.

A. Water Production Totals
Total Water Delivered into the Rialto Water System:

DAILY PRODUCTION TOTALS IN ACRE FEET

Delivered
via BLF

Purchased
Date Chino 2 City 2 Rialto 3 Rialto 5 Miro 3 EW-1 City 4A B6-9 Cactus(A) ORTP(B) TOTAL(C) 6/1/26 5.72 3.20 0.00 0.00 4.96 9.23 9.11 0.41 6.01 0.00 38.64 6/2/26 5.33 6.67 0.00 0.00 4.70 8.61 6.56 0.00 6.04 0.00 37.90 6/3/26 1.40 7.05 0.00 0.00 4.24 7.74 9.32 0.00 7.69 0.00 37.44 6/4/26 0.00 8.76 0.00 0.00 5.74 8.92 9.04 0.83 7.19 0.00 40.47 6/5/26 0.00 8.14 0.00 0.00 3.99 8.95 8.96 0.41 6.61 0.00 37.06 6/6/26 0.00 9.45 0.00 0.00 5.14 9.27 9.56 0.21 8.13 0.00 41.76 6/7/26 0.00 6.68 0.00 0.00 5.20 9.40 6.24 0.16 7.97 0.00 35.65 6/8/26 0.00 7.32 0.00 0.00 4.88 8.57 8.98 0.07 6.59 0.00 36.40 6/9/26 4.29 1.77 0.00 0.00 4.80 9.16 8.22 0.16 2.96 0.00 31.37 6/10/26 5.42 5.69 0.00 0.00 4.82 8.90 8.71 0.00 11.46 0.00 44.99

6/11/26 5.81 3.27 0.00 0.00 4.94 9.10 5.66 0.02 8.33 8.28 45.42 6/12/26 5.90 8.01 0.00 0.00 5.12 9.18 1.18 0.00 5.51 4.77 39.68 6/13/26 5.92 5.60 0.02 0.00 4.89 9.21 7.47 0.00 8.20 5.13 46.43 6/14/26 5.37 7.53 0.00 0.00 4.77 8.91 11.74 0.00 8.63 4.22 51.16 6/15/26 0.16 9.16 0.00 0.00 4.97 9.25 8.10 0.00 7.90 4.52 44.06 6/16/26 5.53 6.86 4.16 0.00 1.34 8.92 3.74 0.00 6.40 4.65 41.61 6/17/26 6.01 1.76 5.07 0.00 0.00 9.13 0.58 0.00 6.66 2.74 31.96 6/18/26 4.91 1.84 0.00 0.00 0.00 7.99 0.35 0.00 0.60 4.59 20.28 70 4

6/19/26 1.17 5.97 0.00 0.00 0.00 9.05 7.82 0.00 0.71 4.51 29.24 6/20/26 0.00 3.31 0.00 0.00 0.00 9.66 10.07 0.00 1.33 6.40 30.77 6/21/26 0.00 5.14 0.00 0.00 0.00 9.36 9.17 0.05 1.38 4.58 29.68 6/22/26 0.00 2.17 0.00 0.00 0.00 9.07 8.04 0.02 1.61 4.82 25.72 6/23/26 0.00 6.33 0.00 0.00 0.00 8.53 9.30 0.00 1.47 4.08 29.71 6/24/26 0.00 3.79 0.00 0.00 0.00 8.67 8.86 0.00 6.93 4.50 32.76 6/25/26 0.00 0.68 0.00 0.00 0.00 8.78 9.13 0.00 7.76 4.61 30.95 6/26/26 0.00 4.96 0.00 0.00 0.00 8.95 8.98 0.00 7.69 4.35 34.93 6/27/26 0.00 3.90 0.00 0.00 0.00 9.23 9.39 0.00 8.06 4.82 35.40 6/28/26 0.00 6.78 0.00 0.00 0.00 9.62 9.52 0.00 7.46 5.41 38.79 6/29/26 0.00 3.15 0.00 0.00 0.00 8.66 8.72 0.00 8.26 4.78 33.58 6/30/26 0.00 4.48 0.00 0.00 0.01 8.99 9.14 0.00 5.42 3.85 31.89

TOTAL 62.95 159.43 9.25 0.00 74.52 268.98 231.68 2.34 180.95 95.59 1085.69 MIN 0.00 0.68 0.00 0.00 0.00 7.74 0.35 0.00 0.60 0.00 20.28 MAX 6.01 9.45 5.07 0.00 5.74 9.66 11.74 0.83 11.46 8.28 51.16 AVE 1.97 5.31 0.31 0.00 2.48 8.97 7.72 0.08 6.03 3.19 36.19

(A) - Measured at point of connection of Cactus Reservoir site including production from City 4A. Amount may vary compared to billing.
(B) - Measured at point of connection at Cedar Reservoir. Amount may vary as compared to billing. (C) - City 4A is not included in total. It has been accounted for in the purchased total.

71 5

DATE Booster 1 Booster 2 Booster 3 Booster 4 Booster 5 Booster 6-9 Booster 10 Booster 11 6/1/26 0.00 0.00 0.00 0.00 4.55 0.41 0.00 0.00
6/2/26 0.00 0.00 0.00 0.00 6.06 0.00 0.00 0.00
6/3/26 0.00 0.00 0.00 0.00 3.84 0.00 0.00 0.00
6/4/26 0.00 0.00 0.00 0.89 5.82 0.83 0.00 0.00
6/5/26 0.00 0.00 0.00 1.14 3.29 0.41 0.00 0.00
6/6/26 0.00 0.00 0.00 0.41 6.90 0.21 0.00 0.00
6/7/26 0.00 0.00 0.00 0.55 4.38 0.16 0.00 0.00
6/8/26 0.00 0.00 0.00 0.00 3.82 0.07 0.00 0.00
6/9/26 0.00 0.00 0.00 0.00 3.04 0.16 0.00 0.00
6/10/26 0.00 0.00 0.00 0.00 6.13 0.00 0.00 0.00
6/11/26 0.00 0.00 0.00 1.07 1.36 0.02 0.00 0.00
6/12/26 0.00 0.00 0.00 1.33 0.00 0.00 0.00 0.00
6/13/26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6/14/26 0.00 0.00 0.00 0.99 1.41 0.00 0.00 0.00
6/15/26 0.00 0.00 0.00 1.46 1.40 0.00 0.00 0.00
6/16/26 0.00 0.00 0.00 0.22 0.00 0.00 0.00 0.00
6/17/26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6/18/26 0.00 0.00 0.00 0.00 3.75 0.00 0.00 0.00
6/19/26 0.00 0.00 0.00 0.00 13.60 0.00 0.00 0.00
6/20/26 0.00 0.00 0.00 0.00 15.78 0.00 0.00 0.00
6/21/26 0.00 0.00 0.00 0.00 3.51 0.05 0.00 0.00
72 6

6/22/26 0.00 0.00 0.00 0.21 4.66 0.02 0.00 0.00
6/23/26 0.00 0.00 0.00 0.00 7.20 0.00 0.00 0.00
6/24/26 0.00 0.00 0.00 0.00 7.12 0.00 0.00 0.00
6/25/26 0.00 0.00 0.00 0.00 5.03 0.00 0.00 0.00
6/26/26 0.00 0.00 0.00 0.00 4.91 0.00 0.00 0.00
6/27/26 0.00 0.00 0.00 0.00 7.51 0.00 0.00 0.00
6/28/26 0.00 0.00 0.00 0.00 5.12 0.00 0.00 0.00
6/29/26 0.00 0.00 0.00 0.00 4.32 0.00 0.00 0.00
6/30/26 0.00 0.00 0.00 0.00 1.53 0.00 0.00 0.00

TOTAL 0.00 0.00 0.00 8.27 136.04 2.34 0.00 0.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MAX 0 0 0 1.46 15.78 0.83 0 0
AVE 0 0 0 0.28 4.53 0.08 0 0

B. Static Water Levels
All City of Rialto wells are sounded each month, both active and inactive well sites.

Depth-to-water is measured from the well head to the static water surface. Increases in depth-to-water represent a decrease in static water level.

Well Levels
Well
Depth to
Pump
Historical
Maximum Depth to
Water Jun Jul Aug Oct Nov Dec Jan Feb Mar Apr May Jun
Chino #1 (X) 580' 429' 413' 411' 410' 410' 410' 411’ 411’ 411’ 410' 411' 410' 411' Chino #2 493' 369' 334' 334' 333' 331' 333' 334’ 334’ 321’ 321' 334' 334' 334' City #1 260' 392' 119' 121' 120' 120' 122' 122’ 117’ 121’ 125' 124' 124' 124' City #2 500' 402' 129' 131' 125' 126' 126' 126’ 128’ 130’ 125' 125' 131' 127' City #3 (X) 525' 505' 417' 418' 418' 417' 417’' 417’ 417’ 420’ 410' 410' 406' 404' City #4A 528' 406' 367' 370' 366' 360' 359' 363’ 362’ 362’ 357' 363' 363' 358' 73 7

City #5 (X) 385' 364' 316' 316' 316' 317' 318' 319’ 317’ 317’ 314' 314' 312' 312' Rialto #1 (X) 650' 588' 564' 565' 562' 563' 566' 566’ 565’ 566’ 564' 564' 564' 561' Rialto #2 (X) 550' 502' 498' 498' 497' 496' 494' 496’ 495’ 496’ 496' 495' 492' 494' Rialto #3 569' 478' 470' 472' 471' 471' 474' 474’ 474’ 475’ 469' 470' 471' 470' Rialto #4 (X) 450' 418' 414' 413' 414' 413' 412' 412’ 412’ 411’ 410' 409' 409' 408' Rialto #5 560' 387' 387' 387' 387' 386' 386' 386’ 386’ 385’ 383' 383' 382' 383' Rialto #7 (X) 362' 354' 356' 357' 357' 357' 359’ 359’ 359’ 481' 474' 473' 472' Miro #3 563' 492' 481' 480' 479' 480' 480' 478’ 481’ 480’ 482' 480' 480' 478' EW-1 650' 475' 460' 471' 467' 480' 477’ 478’ 479’ 472' 472' 472' 476'

(X) = In-Active Well

II. REGULATORY
All State of California and public health agency regulatory requirements were met, Regulatory Submittals
• Monthly Summary of Distribution System Coliform Monitoring • NPDES Discharge Letter
• Conservation SAFER Report

Sample Test Result Standards
Type of Sampling Units of Measure Detectable Limit for Reporting Maximum Contaminant Level Total Coliform A -- --
E. Coli A -- --
Nitrate as N mg/L 0.20 10
Perchlorate (CLO4) μg/L 1.0 6.0
Total Dissolved Solids mg/L -- 500
74 8

P= Present A= Absent mg/L = parts per million μg/L = parts per billion

Sample Date: 6/08/26 Sample Site Location Results
Type of Sampling Chino 2 City 2 City 4A Rialto 3 Rialto 5 Miro 3 EW-1 BLF Cactus BLF 6-9 OPRTP
Total Coliform A A A A A A A A A A
E. Coli A A A A A A A A A A
Nitrate as N 3 3.5 2.7 5.3
Perchlorate (CLO4) <1.0* 5.4* 8.0* 120*
Total Dissolved
Solids 250 210 260 220 240 230 230 350 350 240

*Sample is from the well head so it is before disinfection & treatment. Treatment is performed before it goes into the distribution system. Water going into the distribution system is <1.0 (non- detect).

A. Sample Site Location Results
Rialto Distribution Sample Results
June 2026
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 1 -
6/02/26 mg/l P/A P/A Color Units TON NTU
335 W. Rialto 0.90 A A
1228 W. Merrill 1.10 A A
256 N. Fillmore 1.10 A A
75 9

987 W. Grove 1.10 A A
978 N. Driftwood 1.10 A A
1451 N. Linden 1.10 A A
469 W. Jackson 1.30 A A
935 E. Mariposa 1.10 A A
1000 N. Joyce 1.20 A A
766 N. Chestnut 1.20 A A
149 W. Victoria 1.60 A A
313 E. McKinley 1.40 A A
609 E. South 1.30 A A
273 E. Alru 1.10 A A
1161 S. Lilac 1.30 A A
101 E. Valley 1.20 A A
CYCLE 2 -
6/09/26 mg/l P/A P/A Color Units TON NTU
210 N. Park 1.10 A A
101 S. Larch 1.10 A A
320 N. Wisteria 1.10 A A
861 W. Grove 1.10 A A
1168 N. Glenwood 1.10 A A
1320 N. Fitzgerald 1.10 A A
860 N. Willow 1.10 A A
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 2 CONT.
- 6/09/26 mg/l P/A P/A Color Units TON NTU
209 E. Cornell 1.40 A A
76 10

643 E. Margarita 1.10 A A
1170 N. Terrace
Rd. 1.00 A A
681 E. Erwin 1.20 A A
402 E. Merrill 1.20 A A
261 W. Wilson 1.10 A A
532 S. Iris 1.20 A A
281 W. Hawthorne 1.20 A A
379 W. Valley 1.00 A A

CYCLE 3 -
6/16/26 mg/l P/A P/A Color Units TON NTU
236 N Willow 1.20 A A
775 E. Foothill 1.20 A A
878 N. Primrose 1.30 A A
369 E. Van
Koevering 1.10 A A
274 W. Valencia 1.20 A A
1566 N. Fillmore 1.10 A A
932 N. Idyllwild 1.10 A A
644 N. Smoketree 1.00 A A
605 W. Rosewood 1.00 A A
1189 W. Second 1.10 A A
775 W. Rialto 1.10 A A
211 E. Wilson 1.10 A A
595 E. Huff 1.10 A A
77 11

Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 3 CONT.
- 6/16/26 mg/l P/A P/A Color Units TON NTU
1005 S. Riverside 1.10 A A
794 S. Verde 1.10 A A
1055 W.

Bloomington 1.10 A A
CYCLE 4 -
6/24/26 mg/l P/A P/A Color Units TON NTU
375 S. Cactus 1.10 A A <3.0 1 <0.10
101 S. Linden 1.00 A A <3.0 1 <0.10
234 N. Larch 1.20 A A <3.0 1 0.13
575 N. Driftwood 0.70 A A
<3.0 1 <0.10
1355 W. Shamrock 1.00 A A
<3.0 1 <0.10
992 N. Yucca 1.20 A A <3.0 1 <0.10
481 W. Cornell 1.10 A A <3.0 1 0.18
158. E. Shamrock 1.10 A A
<3.0 1 0.14
749 E. Holly 1.20 A A <3.0 1 <0.10
545 E. Victoria 1.00 A A <3.0 1 <0.10
200 N. Sycamore 1.10 A A
<3.0 1 <0.10
407 E. Allen 1.10 A A <3.0 1 0.25
399 E. Montrose 1.10 A A
<3.0 1 0.14
856 S. Orange 1.00 A A <3.0 1 0.42
911 S. Cactus 1.00 A A <3.0 1 0.28
220 W. Valley 1.00 A A <3.0 1 <0.10

78 12

B. Violations
No violations were received during this reporting period.

C. Source Water Total Dissolved Solids (TDS)
Veolia has a goal of maintaining an acceptable blended TDS level between all its sources. This goal is achieved by shifting production to or from the lowest TDS wells or purchasing low TDS water while adhering to the overall water supply strategy and meeting system demands. The TDS was on average 268 mg/L for the month of May as compared to 258 mg/L in June. The TDS levels are below the secondary maximum contaminant level requirements.

III. HEALTH AND SAFETY
A. Monthly Safety Program Overview
Category Monthly Statistic
Safety Training Topics LSR Q3
LSR Q4
Lost Time Incidents, count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 3
Vehicle Incidents, count 0
*A lost time incident has not occurred in the past 4370 days.

IV. CHEMICAL USE
Sodium hypochlorite is the only chemical added to the water system. A total of 2428 gallons of sodium hypochlorite was used in June as compared to 3181 gallons used in May.

79 13

V. ELECTRICAL USE
Southern California Edison (SCE) data for June 2026. We will provide the data as it is received, thus will include yearly usage received to date.

SCE kWh
Year Month
Billed
Usage
2025 May 505,764
2024 June 575,467
2025 July 842,561
2025 August 669,021
2025 September 752,171
2025 October 654,454
.2025 November 734,743
2025 December 647,384
2026 January 592,795
2026 February 668,944
2026 March 601,554
2026 April 672,257
2026 May
2026 June
VI. WATER QUALITY COMPLAINTS
No complaints were received during this reporting period.

80 14

VII. OPERATIONS UPDATE
The overall operational strategy is to meet the daily water demand. The City of Rialto water system has six operational wells, one of which is owned by the County of San Bernardino and operated by Veolia; Oliver P. Roemer Treatment Plant (OPRTP), which is jointly owned by the City (25%) and West Valley Water District (WVWD); purchased water through the Baseline Feeder (BLF) system from San Bernardino Valley Municipal Water District (SBVMWD); and, if required to meet demand, additional water can be supplied by the City of San Bernardino (CSB) through the BLF for emergency supply only with no guarantee of actual delivery. Water produced from City Well 4A discharges into the BLF and its production is included in deliveries from that shared transmission line whe n City Well 4A is in service.

The overall pumping strategy is based on adjudicated rights, well availability, remediation requirements, and quality of source, cost to operate, and varying weather conditions. TDS effluent concentrations for the City of Ria lto WWTP are taken into consideration when operating the facilities and water sources.

A. Operational Wells
Booster #3 will be out of service for 4 weeks to replace the upper seal bearing and motor maintenance ; will return into service by July 2026.

Valve Activity
On the basis of information collected in 2019, Veolia now has a baseline assessment of all valves and has initiated a new cycle of valve exercising. Five valves were exercised in the month of March.

Valve Turning Progress
Valves
Turned
2020 530
2021 340
2022 463
2023 750
2024 379
2025 338
2026 434
B. Hydrant Flushing
There are 63 hydrant/dead ends that are flushed annually to maintain water quality.

All annual flushing will be completed by December 2026. 81 15

Hydrant/Dead End Flushing
Progress
2026
January 0
February 0
March 0
April 17
May 5
June 0
July 0
August 0
September 0
October 0
November 0
December 0
Total 0
Progress % (100)
C. Sanitary Survey
DDW performed field site visits on May 22 and August 22, 2024. The results of the sanitary survey were received on September 19, 2024. All minor deficiencies have been corrected and submitted to DDW.

VIII. ASSET MANAGEMENT
The following work orders were completed by Water production staff for the month of May:
• Preventive Maintenance –268
• Corrective Maintenance –0
• Predictive Maintenance –0
– 268 PMs planned for July 2026
A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues
The following work orders were completed by water distribution staff for the month of May:

Main Line: 1 Service Line:10 Hydrant Replacements:4
82 16

Angle Meter Stops10: Meter Box & Lid
Replacements:2
Meter Leaks/
Replacements:12

B. Customer Call Outs, Hydrant hits
Customer Call Outs:14 Meter Leaks: Requests for Water to be turned on/off:11
Leaks in the street:10 Leaking Fire Hydrant:2 Hit/shed hydrant: 3

C. Major Equipment and/or Machinery Outages

IX. RAINFALL TOTALS

CITY OF RIALTO

RAINFALL FOR PAST FIVE YEARS
83 17

YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC TOTAL 2021 2.55 0.05 1.13 0.00 0.00 0.00 0.53 0.00 0.00 0.55 0.00 7.27 12.08 2022 0.00 0.00 0.77 0.45 0.03 0.00 0.00 0.00 0.24 0.38 2.15 1.80 5.82 2023 5.06 4.14 7.73 0.20 0.59 0.00 0.00 2.62 0.00 0.09 0.60 1.18 22.21 2024 1.00 10.38 1.87 0.53 0.34 0.00 0.00 0.00 0.00 0.00 0.45 0.00 14.57 2025 0.21 3.68 2.47 0.49 0.29 0.00 0.00 0.00 0.12 0.93 4.05 2.95 15.19 RAINFALL AMOUNT FOR THE YEAR OF 2025 = 15.19 inches
AVG. ANNUAL RAINFALL FOR LAST FIVE YEARS = 13.97 inches AVG. RAINFALL FOR SAN BERNARDINO COUNTY FOR THE LAST 100 YEARS = 16.07 inches 2026 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Totals 2.59 3.36 0.00 0.76 0.13 0.00 6.84

Weather
Date Clear P.Cloudy Cloudy
6/1/26 X
6/2/26 X
84 18

6/3/26 X
6/4/26 X
6/5/26 X
6/6/26 X
6/7/26 X
6/8/26 X
6/9/26 X
6/10/26 X
6/11/26 X
6/12/26 x
6/13/26 X
6/14/26 X
6/15/26 X
6/16/26 X
6/17/26 X
6/18/26 X
6/19/26 X
6/20/26 X
6/21/26 X
6/22/26 X
6/23/26 X
6/24/26 X
6/25/26 X
6/26/26 X
6/27/26 X
6/28/26 X
6/29/26 X
6/30/26 X

85 RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

Reporting Period:

June 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
86 RIALTO WASTEWATER

OPERATIONS AND MAINTENANCE REPORT

Contents

EXECUTIVE SUMMARY

1. Collection System / Customer Service Log
a. Collection System Activities
b. S.S.O. dates
c. Customer Service Call Outs

2. Wastewater Treatment Plant - Monthly Overview
a. Significant events during the month

3. Treatment Facility Performance / Laboratory Activities a. See attached Monthly Performance Summary
b. Summary of Notices and Laboratory Tests / Reports filed with government agencies c. Effluent Specifications Exceedance Discussion

4. Monthly Safety Program Overview

5. Biosolids, Chemicals, and Utilities
a. Monthly Biosolids Production
b. Monthly Chemical Consumption
c. Monthly Utilities Consumption

6. Odor Complaints / Actions Taken

7. Major Equipment and/or Machinery Outages

8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
b. Government agency environmental, health, or safety tests/monitoring c. Government agency notice of violation received
d. Government agency monitoring
e. Other matters of concern

9. Complaint Logs

TABLES

● Treatment Facility – Monthly Performance Summary
● Collection System- Monthly Pipe Cleaned
87 RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

EXECUTIVE SUMMARY

Highlights of this month’s Wastewater O&M report include the following:

● The treatment plant performed well and met all compliance parameters. ● There were four residential call-outs for sewer collection issues.

1. Collection System/Customer Service Log
a. Collections group activities this month:

Category Current Month
Statistics
Prior Month Statistics 2026 Year to Date
Statistics
Sanitary sewers are cleaned using the
conventional method, including feet, which
includes “Hot spot cleaning.”
17,079 11,577 118,767
Sanitary sewers assessed using the SL-RAT
method, feet 0 0 0
CCTV Inspection, miles (26 is the annual goal)* 3.36 1.47 15.79 Manhole Inspections 1 6 19
USA Dig Alert Markings, count 45 45 205
Residential call-outs 4 3 18
Sanitary sewer overflows 0 0 0

b. S.S.O. dates:
c. Customer Service Call Outs – See Item 9 for details.

2. Wastewater Treatment Plant – Monthly Overview
●
a. Significant events during the month were:

None

3. Treatment Facility Performance/Laboratory Activities a. See the attached Table 1, Monthly Performance Summary.

b. Summary of Notices and Laboratory Tests/Reports filed with government agencies.

The monthly submittal of State/Federal discharge monitoring reports was completed promptly.

c. Effluent specification exceedance discussion
See Section 2 above. N/A

4. Monthly Safety Program Overview

Category Monthly Statistic
Safety Training Topics 0
Lost Time Incidents count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 0
Vehicle Incidents, count 0

*A lost time incident has not occurred since 9-3-2020, totaling 2,126 days.

88 5. Biosolids, Chemicals, and Utilities

a. Monthly Biosolids Production

Biosolids Current Month
Statistics
Prior Month Statistics 2026 Year-to-Date
Statistics
Wet Tons Produced 868.29 1,115.32 6,963.5

b. Monthly Chemical Consumption

Chemical Current Month
Gallons Used
Prior Month
Gallons Used
Sodium Hypochlorite, Tertiary Disinfection 27,253 28,696 Sodium Bisulfite, Discharge Dechlorination 10,819 9,467 Ferrous Chloride, Digester Gas Conditioning 3,534 3,595 Polymer, Gravity Belt Thickener 302 270
Polymer, Belt Filter Press 688 726
Alum, Tertiary Filters 1 0

c. Monthly Utilities Consumption

Utility Current Month
Statistics
Prior Month Statistics
Electricity WWTP, KWH 410882 448385
Electricity Lilac LS, KWH 785 919
Electricity Sycamore LS, KWH 475 478
Electricity Ayala LS, KWH 5034 7686
Electricity Agua Mansa LS, KWH 2334 2083
Electricity Cactus LS, KWH 1044 317
Electricity Ramrod LS, KWH 503 528 Frisbee Park LS, KWH 697 712
El Rancho Verde LS, KWH 2367 2158
Natural Gas WWTP, Therms 5116 4862
* LS is in bypass mode, pending CIP completion
** SCE has not updated this account.

6. Odor Complaints Received/Actions Taken
• None

7. Major Equipment and/or Machinery Outages
● Sludge Holding Tank
● Aeration Basin #3 is currently offline.
● Chlorine Contact Tanks #1 and #2 are offline

8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
None

b. Government agency environmental, health, or safety tests/monitoring Permit testing was completed for this month

c. Government agency notices of violation received
No notices were received.

d. Government agency monitoring
Routine monitoring reports were submitted.
89 e. Other matters of concern
None

9. Customer Service Callout Details Log

Date Address Comments Personnel Manhole To
Manhole
6/2/2026 365 W Shamrock Customer service reported an issue at 365 W Shamrock involving dirty water with a sewer odor leaking from the curb. The technician was contacted and responded to the issue. Investigated and determined the report was a
"false alarm," confirming the water was contained in the gutter with no source detected.

BVO
6/9/2026 750 E Mesa Customer service reported a suspected sewer backup, stating that when the toilet is flushed, water backs up into both the toilet and the bathtub. The technician
responded to the report, concluding that the problem
was not a city issue.

BVO
6/18/2026

564 W Foothill Blvd Blocked lateral; cleaned mainline as a precaution; main was clear; did not change the property owner's condition PH
6/29/2026 195 E Valley Customer service reported odor, originates from within the customer's building. The main line was courtesy
cleaned, and the owner was advised to call a plumber.

90 Table 1 Summary

91 92

Table 2 Summary

93 94

Table 3 Summary

95 96

Monthly Sewer Line Cleaned

97 98
Veolia/RWS
Monthly Operations
Report

July 2026
Re porting period May 2026
99 RIALTO

CUSTOMER SERVICE & REVENUE

MONTHLY OPERATIONS REPORT

Reporting Period:

May 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
100

Table of Contents
I. CUSTOMER SERVICE SUMMARY............................................................................................. 3 II. CALL CENTER PERFORMANCE ................................................................................................. 3 III. AUTOMATED SERVICES ........................................................................................................... 3 IV. CONSUMPTION & BILLING ...................................................................................................... 4 A. Consumption .................................................................................................................... 4 B. Billing ................................................................................................................................ 4 V. REVENUE & AGING .................................................................................................................. 5 A. Revenue ........................................................................................................................... 5 B. Aging ................................................................................................................................ 6 C. Bad Debt........................................................................................................................... 6 VI. SERVICE ORDERS ..................................................................................................................... 7 VII. OTHER ACTIVITIES ................................................................................................................... 7 VIII. REVENUE REPORT ................................................................................................................... 7 A. Revenue Summary ........................................................................................................... 7 B. Non Rate Revenue - Extraterritorial Customers ............................................................. 7 C. Non-Rate Revenue – Other ............................................................................................. 8 D. Development Impact Fees ............................................................................................... 8 E. Rialto Basin Water Rights and Leasing ........................................................................... 8 F. Payment Collection Method – Fiscal Year to Date ....................................................... 10 G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison ..................... 10 H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison .................. 10 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date ........................... 11 J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison ............ 11 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging ......................... 12

101

3 I. CUSTOMER SERVICE SUMMARY
During this reporting month, the Customer Service team provided call service level of

99.6%. Out of 1,233 inbound calls 1,229 were answered within the first 30 seconds.

Water consumption has increased by 14.3% when compared against previous month.

When compared against last year, consumption has decreased by 12.8%.

Sewer revenue has increased by 14.5% compared to the prior month and increased 4.1% from last year.

II. CALL CENTER PERFORMANCE
During this reporting month, service level was 99.6% with 1,229 out of 1,233 being answered within the first 30 seconds. Overall average wait time was thirty (30) seconds.

III. AUTOMATED SERVICES
About 13,493 or 58.4% of the rate payers have created log-ins to access their accounts online. Of these customers, with online access, 48.4% have chosen the e-bill option. This e- bill participation is 9.3% increase from May of the prior year.

88.0% 85.0% 86.7%

80.1%

90.5% 87.8% 86.6% 88.7% 93.0%

85.0%

92.8% 91.8%

99.6%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%
100.0%
110.0%
0 200
400
600
800
1,000
1,200
1,400
1,600
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Answer in 30 Sec 1,120 1,256 1,263 1,043 1,277 1,212 1,090 1,257 1,124 973 1,157 1,213 1,229 Calls Answered 1,272 1,479 1,456 1,294 1,411 1,379 1,258 1,417 1,208 1,148 1,247 1,320 1,233 Service Level 88.0% 85.0% 86.7% 80.1% 90.5% 87.8% 86.6% 88.7% 93.0% 85.0% 92.8% 91.8% 99.6% Call Center Performance
Answer in 30 Sec Calls Answered Service Level
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Number of Bills 22,705 22,770 22,792 22,838 22,864 22,875 22,927 22,913 23,045 22,987 23,031 23,030 23,086 Number of Bill Adjustments (during billing) 15 18 29 10 7 8 11 27 47 47 32 17 20 Automated Over the Phone Payments 2,276 2,578 2,596 2,344 2,531 2,560 2,089 2,404 2,326 2,339 2,656 2,170 2,535 Online Payment 8,434 9,800 10,260 8,691 11,224 10,369 7,614 10,432 8,771 10,145 11,774 8,590 10,767 E-bill Participants 6,000 6,074 6,134 6,185 6,233 6,290 6,332 6,372 6,401 6,421 6,476 6,529 6,574 Auto Pay Participants (New Portal) 4,630 4,696 4,728 4,776 4,834 4,881 4,923 4,978 5,025 5,083 5,137 5,169 5,241 PayNearMe 88 88 88 88 103 85 80 80 60 81 76 84 81
102

4 IV. CONSUMPTION & BILLING
A. Consumption
Water consumption has increased by 14.3% when compared against previous month.

When compared against last year, consumption has decreased 12.8%.

Low consumption is due to billing adjustment for a large water bottling company. The City has requested change from Category II to Category III.

B. Billing
A total of 23,086 bills were mailed or sent out electronically in May. Billing accuracy was

99.1% with twenty (20) requiring adjustments after bill generation.

January Feburary March April May June July August Septembe r October November December
2024 Water 206,431 180,655 200,494 182,612 212,666 337,500 324,399 361,294 446,508 312,312 360,721 253,250 2025 Water 259,394 284,167 203,166 212,580 316,422 285,524 323,411 430,678 345,305 310,177 330,460 217,069 2026 Water 253,829 221,382 206,070 241,293 275,797
0 50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
HCF
Billed Consumption Yearly Comparison Water
January February March April May June July August September October November December 2024 Sewer 55,865 50,136 60,877 55,837 54,976 64,339 64,897 68,143 79,931 67,254 73,871 63,136 2025 Sewer 58,347 65,403 51,489 50,598 58,461 59,483 56,496 69,265 66,908 62,147 69,061 61,468 2026 Sewer 60,658 60,373 45,113 50,563 55,760
0 10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
HCF (hundred cubic feet)
Billed Consumption Yearly Comparison Sewer
(Commercial Only)
103

5 V. REVENUE & AGING
A. Revenue
Water revenue has increased 23.4% when compared against the prior month and increased less than 1% when compared against previous year. Sewer revenue has increased by 14.5% compared to the prior month and increased by 4.1% from last year.

(
Please consider the scale of the graph as doubled height does not mean double the amount)

January Feburary March April May June July August Septembe r October November December
2024 Water Sales $912,498. $852,016. $881,079. $864,955. $930,910. $1,229,95 $1,194,46 $1,291,72 $1,510,71 $1,170,74 $1,297,36 $1,038,61 2025 Water Sales $1,059,329 $1,249,252 $1,039,421 $1,064,341 $1,341,734 $1,257,370 $1,358,417 $1,622,939 $1,420,962 $1,330,008 $1,387,141 $1,083,202 2026 Water Sales $1,180,870 $1,095,263 $1,053,630 $1,094,059 $1,349,908 $-
$200,000.00
$400,000.00
$600,000.00
$800,000.00
$1,000,000.00
$1,200,000.00
$1,400,000.00
$1,600,000.00
$1,800,000.00
Dollars ($)
Annual Water Sales Comparison
January Feburary March April May June July August Septembe r October November December
2024 Sewer Sales $2,158,668 $2,147,783 $2,229,038 $2,190,195 $2,186,025 $2,260,077 $2,264,418 $2,288,863 $2,385,936 $2,295,859 $2,344,329 $2,264,375 2025 Sewer Sales $2,227,202 $2,415,779 $2,331,147 $2,322,513 $2,384,586 $2,384,448 $2,367,499 $2,463,167 $2,440,356 $2,408,576 $2,460,034 $2,404,771 2026 Sewer Sales $2,408,925 $2,404,957 $2,351,579 $2,168,676 $2,482,965 $1,900,000.00
$2,000,000.00
$2,100,000.00
$2,200,000.00
$2,300,000.00
$2,400,000.00
$2,500,000.00
$2,600,000.00
Dollars ($)
Annual Sewer Sales
104

6 B. Aging
The total aging balance has increased by 13.8% see first table below. For balances >30-days only, water has increased 12.9% and wastewater has decreased by 2.5%. Sewer balances are expected to continue rising until end of the Fiscal year 2026.

C. Bad Debt
Six (6) accounts were sent to collections for a total amount of $3,217.23. These bad debts arise from customers moving out or selling the property and not closing the account with final payments.
$0.00
$500,000.00
$1,000,000.00
$1,500,000.00
$2,000,000.00
$2,500,000.00
$3,000,000.00
$3,500,000.00
$4,000,000.00
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Aging Balances in Dollars ($)
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 WTR $1,487,957.5 $1,432,711.8 $1,518,645.5 $2,039,090.8 $1,720,916.8 $1,542,853.8 $1,648,072.4 $1,430,158.8 $1,656,743.6 $1,604,777.2 $1,307,087.1 $1,386,850.1 $1,750,146.9 SWR $3,719,707.7 $3,484,523.2 $2,007,183.0 $2,577,088.9 $2,513,640.5 $2,396,727.8 $2,706,744.7 $2,735,737.6 $3,152,037.7 $3,287,157.9 $3,260,863.2 $3,382,232.5 $3,676,794.2 Historical Aging Totals
Water and Sewer
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
$2,000
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Thousands
May-25 Jun-25 Jul-25 Aug-25 Sep-25 Oct-25 Nov-25 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 WATER $396,223 $485,523 $578,110 $683,117 $661,838 $642,879 $607,605 $670,880 $679,989 $703,428 $538,327 $532,539 $601,016 SEWER $1,793,227 $1,813,326 $538,015 $676,294 $793,637 $876,236 $943,678 $1,129,440 $1,197,669 $1,415,022 $1,520,726 $1,688,822 $1,646,172 Aging Balances Over 30 Days Water and Sewer
(April 2021 forward contains both consumption and meter charges) 105

7 VI. SERVICE ORDERS
390 service orders were initiated by the customer service team during the reporting month. Of this total, 80 service orders or 21% were due to occupant changes. 239 service orders were initiated to accommodate water disconnection for non-payment and reconnection of water services when customer set up (or reinstate) a payment arrangement with down payment.

VII. OTHER ACTIVITIES
CS department is operating with one person out on disability. A requisition for temporary replacement has been submitted. No injuries were reported during this reporting period.

Total numbers of 128 disconnections were performed during the May 2026.

VIII. REVENUE REPORT
A. Revenue Summary
Cash Revenue is compiled and reconciled to the merchant account on a daily basis. Cash receipts and deposits are made daily and internal controls are reviewed regularly to ensure safeguarding of assets and proper recording of all transactions. Total revenue collected in May 2026 is $ 5,055,000 whereas Non -Rate Revenue is $ 282,000; Utility Revenue is $4,680,000 and Tax / Ambulance Revenue at $93,000.

RWS collects Utility User Taxes and Ambulance Fees on behalf of the City of Rialto. The Utility User Tax (UUT) rates are based on the total billed amount, therefore the collection fluctuates as billed amounts change. The total UUT charges collected in May 2026 and May 2025 are $88,000 and $45,000 respectively. Ambulance Revenue is also collected on behalf of the City of Rialto totaling $5,000 in May 2026 and $5,000 in May 2025.

B. Non Rate Revenue - Extraterritorial Customers
RWS bills the City of Fontana $133,000 each month for extraterritorial sewer usage.

Colton Unified School District is in agreement with RWS to pay $5,000 monthly for sewage connections based on enrollment rates provided each school year.

An extraterritorial agreement to provide sewer service was executed between the City of Rialto and the County of San Bernardino —County Service Area 70, Zone BL (Bloomington).

This housing development project generates extraterritorial sewer service revenue of $20,000 per month.
106

8 The City has an agreement with Social Science Services dba Cedar House Life Change Center to provide extraterritorial sewer service providing sewer revenue of about $5,000 each month.

Rialto Bioenergy Solutions subleased a City property for $10,750 a month.

The City and San Bernardino Valley Municipal Water District have entered into a Brine Line Capacity Agreement on January 23, 2021. This agreement pertains to the use of its interest in the SARI Line and discharge of certain brine waste to the SARI Line exclusively from the operation of Rialto Bioenergy Facilities within the City’s boundaries. The revenue generated in this agreement consists of quarterly rent of $37,500 along with the Fixed Pipeline Capacity Fee of $3,300 per month and Fixed Treatment Plant Capacity Fee of $3,300 per month. In addition, a variable fee of any discharge costs are also billed.

The San Bernardino Valley Water District (SBVWD) reimburses RWS for water conservation programs provided to customers. A quarterly bill is delivered directly by the City.

E. Rialto Basin Water Rights and Leasing
A Standby Water Lease Agreement between Fontana Union Water Company and City of Rialto is in effect. For the 2024 -2025 Water Year, RWS billed San Bernardino County the amount of $349,264 for the Standby Charges and Production Charge. The County paid and has no further Water Lease obligations in the current year.

In addition, the County is also billed annually for Rialto Well #3’s summertime electricity costs based on peak usage.
107

9 Cash Collections by Payment Method – Rialto Water Services

General ledger are posted and accounted for the following day the payments are processed.

Payment Method Description
Transaction
Count MAY 2026 %
Carrier Deposits Cash deposits prepared per day for transport to US Bank. 20 $ 150,596 2.94% Remote Deposits Scanned batches of checks payments made at the customer service counter 20 1,195,264 23.35% EBOX Batches of electronic customer payments posted
to customer accounts at US Bank. 20 337,761 6.60%

PAYMENTUS - IVR /
Paymentus / Walk-in
Credit Card payment
Customer payments by credit cards and ACH /
eCheck payments through an Interactive Voice
Response system using a touchtone
phone.Payments originated from Merchant online
service
14,286 2,339,456 45.70%
Lockbox Deposits Batches of customer payments mailed in to US Bank's lockbox 20 1,085,728 21.21% Pay Near Me
Cash payment service that allows customers to pay
at a local 7-Eleven, CVS, Walmart or Family Dollar
stores.
74 10,706 0.21%
Total Revenue per Bank $ 5,119,511 100.00% Recon to RUA Recap:

Adj detailed in RUA 14,803
Prior mo. Correction
RUA increase in Cash $ 5,134,314
108
10 F. Payment Collection Method – Fiscal Year to Date

G. Cash Collections on Behalf of the City of Rialto-Prior Year Comparison

H. Non-Rate Revenue + Utility Revenue Collections Prior Year Comparison

Jul 2025 Aug 2025 SEPT 2025 OCT 2025 NOV 2025 DEC 2025 JAN 2026 FEB 2026 MAR 2026 APR 2026 MAY 2026 Total % Carrier Deposits 144,793$ 140,286$ 155,654$ 147,234$ 103,022$ 142,623$ 127,207$ 133,155$ 146,021$ 121,408$ 150,596$ 1,511,997$ 3.36% Remote Deposits 499,489 241,420 686,008 995,009 311,584 762,404 510,265 1,020,346 538,267 578,934 1,195,264 7,338,990$ 16.30% EBOX 407,888 286,741 367,169 378,253 237,351 341,059 269,016 296,667 324,116 274,158 337,761 3,520,180$ 7.82% Paymentus, IVR, Credit Cards 2,118,383 1,853,657 2,370,061 2,278,360 1,572,041 2,080,662 1,722,987 2,014,094 2,316,170 1,751,601 2,339,456 22,417,473$ 49.80% Lockbox Deposits 1,176,928 904,658 1,003,875 1,162,475 707,921 848,106 822,102 855,632 813,647 732,577 1,085,728 10,113,648$ 22.47% Pay Near Me 11,821 11,616 14,142 11,316 9,254 11,254 5,868 10,941 9,326 9,994 10,706 116,239$ 0.26% Total Revenue to Bank 4,359,302$ 3,438,377$ 4,596,910$ 4,972,646$ 2,941,173$ 4,186,107$ 3,457,446$ 4,330,835$ 4,147,548$ 3,468,672$ 5,119,511$ 45,018,527$ 100.00% NSF (10,757) (15,745) (17,442) (15,892) (14,628) (20,682) (31,415) (19,746) (15,869) (23,415) (13,843) (199,432)$ Net deposits 4,348,546$ 3,422,632$ 4,579,468$ 4,956,754$ 2,926,545$ 4,165,425$ 3,426,031$ 4,311,089$ 4,131,679$ 3,445,257$ 5,105,668$ 44,819,095$ May 2026 May 2025 Variance
UUT Water 27,709$ 18,230$ 9,480$
UUT Sewer 59,844 26,728 33,117
Ambulance 5,348 4,879 469
Total 92,902$ 49,836$ 43,065$
May 2026 May 2025 Variance
Non-Rate / Extra Territorial
Revenue 281,634$ 61,967$ 219,668$
Utility Revenue 4,680,093$ 3,413,115$ 1,266,978
Total 4,961,728$ 3,475,082$ 1,486,646$
109
11 I. Non-Rate Revenue + Utility Revenue Collected Fiscal Year-to-Date

J. Increase in Cash Collections and Fund Distribution—Prior Year Comparison

Jul 2025 Aug 2025 Sept 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 May 2026 Total Non-Rate Revenue
Cell Tower Rent,Llease 21,485 17,154 15,080 53,897 13,580 14,324 4,330 14,897 48,457 89,897 24,712 317,813 Interest Income - - - - - - - - - - - -

NRR-FOG - - - - - - - - - - - - Municipal Water Sales - - - - - 349,264 - - - - - 349,264 Extra Terr- Sewage 169,483 6,711 107,820 583,011 35,551 174,217 170,577 257,617 144,260 217,674 244,658 2,111,579 Non-Rate Misc Water - - - - - - 1,032 - - - - 1,032 Abatement of Expenses - - - - - - - - - - - - Water Meter Lost/Damaged/Repl 22,650 17,176 13,295 16,075 14,366 1,557 10,659 10,065 10,340 318 927 117,429 Misc Fees - New Occ., Same Day Svc 10,815 7,182 7,522 9,355 6,949 7,834 6,896 6,779 9,154 7,743 11,338 91,566 Miscellaneous Revenue - Sewer - - - - - 5 - - - - - 5 NSF - - - - - - 40 - 13 - - 53 Total Non-Rate Revenue 224,433$ 48,223$ 143,717$ 662,339$ 70,447$ 547,200$ 193,534$ 289,358$ 212,224$ 315,633$ 281,634$ 2,988,742 Utility Revenue
Water Penalty 30,460 33,752 31,754 37,988 34,640 29,186 27,933 28,838 33,696 27,479 29,577 345,303 Sewer Penalty 74,191 48,802 42,100 54,993 40,418 43,022 48,483 41,187 54,314 50,683 68,349 566,543 Turf Removal, Hi-Eff Rebate (100) - - - - - - (100) - - - (200) Water Deposits Billed 16,142 15,863 16,027 17,938 13,085 7,527 16,427 13,248 14,730 30,576 10,886 172,450 Hydrant Deposits 315 158 161 68 - 197 - 702 - - - 1,601 Sewer Deposits Paid - - - - - - - - - - - - Sewer Deposits Billed 16,204 16,667 15,480 15,055 12,065 9,677 12,804 12,711 15,481 11,645 10,469 148,257 Water 1,329,427 1,148,584 1,723,704 1,493,556 835,225 1,291,024 970,084 1,197,349 1,381,042 920,524 1,461,343 13,751,863 Sewer 2,760,649 1,949,745 2,492,623 2,526,711 1,594,009 2,385,765 2,006,500 2,296,925 2,521,401 1,950,578 2,568,080 25,052,985 Unapplied Credits 26,588 50,012 109,984 80,529 180,113 (93,772) 63,577 (141,671) (137,801) 134,188 (8,434) 263,313 Bad Debt Sewer - - - - - - - 985 292 - 793 2,069 Bad Debt Water - - - - - - - - - - - - Tax Roll Sewer - - - - - - - - 602,811 - 539,031 1,141,842 Collection Agency - Water - - - - - - - - - - - - Collection Agency - Sewer - - - - - - - - - - - - Collection Agency - Misc Water - - - - - - - - - - - - Total Utility Revenue 4,253,876$ 3,263,582$ 4,431,832$ 4,226,839$ 2,709,556$ 3,672,625$ 3,145,808$ 3,450,175$ 4,485,967$ 3,125,674$ 4,680,093$ 41,446,026$ Total Non-Rate + Utility Rev. 4,478,309 3,311,805 4,575,549 4,889,178 2,780,002 4,219,825 3,339,342 3,739,533 4,698,191 3,441,307 4,961,728 44,434,768 Increase to Cash
per Incode
Adjustments
Required to GL
Cash
Fund 660-Sewer Fund 670-Water Total Cash Per
GL
Adjustments To
Match RUA to Bank
Cash/CC/Cks
Deposit To Bank
May 2026 3,483,474 23,188 2,326,572 1,133,714 3,483,474 (14,803) 3,468,672 May 2025 5,054,629 13,501 3,427,519 1,613,609 5,054,629 64,882 5,119,511 110

12 K. Non-Rate and Extraterritorial Customer Accounts Receivable Aging

The total accounts receivable for non- rate and extraterritorial customers is $ 244,000. Of which $224,000 is current and $19,000 is past due. The largest balance is City of Fontana at $131,000 and is fully current. Additionally, Cedar House carries a $13,000 balance including the $6,800 past due. Cedar House has been contacted for the past due balance. Vertical Bridge holds a $10,000 balance consisting of the past due amount of $7,500 of unreconciled delinquencies. Sprint-Nextel has a small net balance due to prior unreconciled delinquencies as well.

Name
Total as of
5/31/2026 Current 31 to 60 days 61 to 90 days >90 days
AT&T - Easton -$ - - - - Cedar House 6,806 - - - 6,806 CITY OF FONTANA 131,182 131,182 - - - Colton Unified School District - - - - - County of San Bernardino-CSA 70 BL 21,716 21,716 - - - Rialto BioEnergy Facilities 70,169 70,169 - - - Sprint-Nextel 3,456 (2,074) - - 5,530 San Bernardino Co Waste System Div - - - - - SB Valley Mun Water District - - - - - Vertical Bridge Holdco, LLC (CIG) 10,665 3,121 - - 7,544 Grand Total 243,994$ 224,115$ -$ -$ 19,880$ 111
1 RIALTO WATER

MONTHLY OPERATIONS REPORT

May 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services

112
2 RIALTO WATER

OPERATIONS AND MAINTENANCE REPORT

113
3 I. EXECUTIVE SUMMARY
In the month of May, the water distribution network achieved compliance with all permit requirements. There were no sample anomalies that required secondary sampling. There were no significant issues with water availability and the purchasing of water remained consistent and daily equalization tank levels remained at anticipated volume for customer availability.

A. Water Production Totals
Total Water Delivered into the Rialto Water System:

DAILY PRODUCTION TOTALS IN ACRE FEET
Delivered via BLF

Purchase
d

Date Chino 2 City 2 Rialto 3 Rialto 5 Miro 3 EW-1 City 4A B6-9 Cactus(A) ORTP(B) TOTAL(C) 5/1/26 5.58 3.67 0.00 0.00 4.64 5.90 9.53 8.06 4.59 0.00 41.96 5/2/26 6.27 4.21 0.00 0.00 5.11 6.41 9.12 9.23 4.02 0.00 44.36 5/3/26 5.76 4.54 0.00 0.00 5.55 6.66 10.40 8.72 4.41 0.00 46.05 5/4/26 4.36 6.36 0.00 0.00 5.11 6.83 7.62 8.72 5.17 0.00 44.17 5/5/26 5.37 2.13 0.00 0.00 3.97 5.19 8.05 10.35 3.79 0.00 38.84 5/6/26 5.72 0.09 0.00 0.00 5.01 6.31 5.25 3.65 4.09 0.00 30.11 5/7/26 5.51 3.66 0.00 0.00 4.88 6.25 10.87 10.74 4.82 0.00 46.74 5/8/26 5.44 4.09 0.00 0.00 4.53 5.71 0.46 8.43 4.59 0.00 33.24 5/9/26 5.49 3.67 0.00 0.00 4.93 6.21 16.17 6.59 4.73 0.00 47.77 5/10/26 6.13 2.93 0.00 0.00 5.19 6.46 9.96 9.66 2.50 0.00 42.83

5/11/26 5.46 9.62 0.00 0.00 5.01 6.43 9.82 7.81 8.13 0.00 52.29 5/12/26 5.12 0.12 0.00 0.00 4.82 6.00 7.58 7.39 4.32 0.00 35.35 5/13/26 5.62 3.37 0.00 0.00 5.16 6.30 9.64 5.05 4.55 0.00 39.70 5/14/26 5.67 1.99 0.00 0.00 4.54 8.79 7.33 10.03 4.91 0.00 43.26 5/15/26 4.75 0.11 0.00 0.00 4.52 8.31 9.27 7.71 4.61 0.00 39.30 5/16/26 6.40 1.78 0.00 0.00 5.09 9.34 9.53 5.74 3.93 0.00 41.82 5/17/26 5.12 0.00 0.00 0.00 5.19 11.25 6.80 5.88 5.12 0.00 39.36 5/18/26 5.62 0.00 0.00 0.00 4.73 6.94 7.42 7.94 5.28 0.00 37.93 114
4 5/19/26 4.55 0.00 0.00 0.00 5.72 8.99 8.61 7.97 6.06 0.00 41.89 5/20/26 5.33 2.76 0.00 0.00 3.77 9.55 8.30 6.68 6.89 0.00 43.27 5/21/26 4.32 9.66 0.00 0.00 0.00 7.29 9.68 2.89 7.44 0.00 41.27 5/22/26 5.51 8.84 0.00 0.00 0.00 9.54 8.06 0.00 5.97 0.00 37.92 5/23/26 7.32 11.15 0.00 0.00 3.66 8.45 10.84 3.37 7.05 0.00 51.85 5/24/26 5.00 0.00 0.00 0.00 4.96 9.11 7.97 6.75 7.16 0.00 40.96 5/25/26 5.90 0.00 0.00 0.00 5.25 9.44 10.82 10.28 8.20 0.00 49.90 5/26/26 4.71 7.34 0.00 0.00 4.74 8.87 8.03 4.57 5.76 0.00 44.02 5/27/26 4.94 2.61 0.00 0.00 4.74 8.67 7.73 7.76 6.18 0.00 42.62 5/28/26 5.56 0.34 0.00 0.00 5.08 9.05 8.89 6.08 6.34 0.00 41.34 5/29/26 5.53 0.00 0.00 0.00 4.56 8.39 9.47 3.86 7.46 0.00 39.28 5/30/26 11.07 1.71 0.00 0.00 5.11 9.35 9.19 4.02 5.85 0.00 46.30 5/31/26 4.87 0.00 0.00 0.00 5.21 9.43 10.74 3.54 8.88 0.00 42.67

TOTAL 173.99 96.75 0.00 0.00 140.77 241.43 273.14 209.48 172.77 0.00 1308.34 MIN 4.32 0.00 0.00 0.00 0.00 5.19 0.46 0.00 2.50 0.00 30.11 MAX 11.07 11.15 0.00 0.00 5.72 11.25 16.17 10.74 8.88 0.00 52.29 AVE 5.61 3.12 0.00 0.00 4.54 7.79 8.81 6.76 5.57 0.00 42.20

115
5 DATE Booster 1 Booster 2 Booster 3 Booster 4 Booster 5 Booster 6-9 Booster 10 Booster 11 5/1/26 0.00 0.00 8.88 0.00 0.00 8.06 0.00 0.00
5/2/26 0.00 0.00 9.17 0.00 0.00 9.23 0.00 0.00
5/3/26 0.00 0.00 10.35 0.00 0.00 8.72 0.00 0.00
5/4/26 0.00 0.00 7.53 1.01 0.00 8.72 0.00 0.00
5/5/26 0.00 0.00 8.15 0.00 0.00 10.35 0.00 0.00
5/6/26 0.00 0.00 6.75 0.00 0.00 3.65 0.00 0.00
5/7/26 0.00 0.00 7.10 0.00 0.00 10.74 0.00 0.00
5/8/26 0.00 0.00 7.57 0.00 0.00 8.43 0.00 0.00
5/9/26 0.00 0.00 5.72 0.00 0.00 6.59 0.00 0.00
5/10/26 0.00 0.00 6.53 0.00 0.00 9.66 0.00 0.00
5/11/26 0.00 0.00 10.40 1.76 0.00 7.81 0.00 0.00
5/12/26 0.00 0.00 1.15 2.69 0.00 7.39 0.00 0.00
5/13/26 0.00 0.00 5.88 0.41 0.00 5.05 0.00 0.00
5/14/26 0.00 0.00 5.21 0.00 0.04 10.03 0.00 0.00
5/15/26 0.00 0.00 4.76 0.00 0.00 7.71 0.00 0.00
5/16/26 0.00 0.00 2.79 0.00 0.68 5.74 0.00 0.00
5/17/26 0.00 0.00 2.36 0.00 0.00 5.88 0.00 0.00
5/18/26 0.00 0.00 3.06 0.00 0.00 7.94 0.00 0.00
5/19/26 0.00 0.00 5.18 0.00 0.00 7.97 0.00 0.00
5/20/26 0.00 0.00 4.49 0.00 0.00 6.68 0.00 0.00
5/21/26 0.00 0.00 6.57 1.20 2.13 2.89 0.00 0.00
116
6 5/22/26 0.00 0.00 2.99 0.00 5.16 0.00 0.00 0.00
5/23/26 0.00 0.00 9.29 0.00 3.58 3.37 0.00 0.00
5/24/26 0.00 0.00 3.45 0.00 0.00 6.75 0.00 0.00
5/25/26 0.00 0.00 17.03 0.00 0.00 10.28 0.00 0.00
5/26/26 0.00 0.00 0.00 0.00 0.00 4.57 0.00 0.00
5/27/26 0.00 0.00 0.00 0.00 0.00 7.76 0.00 0.00
5/28/26 0.00 0.00 0.00 0.00 3.17 6.08 0.00 0.00
5/29/26 0.00 0.00 0.00 0.00 5.45 3.86 0.00 0.00
5/30/26 0.00 0.00 0.00 0.00 1.15 4.02 0.00 0.00
5/31/26 0.00 0.00 0.00 0.00 7.03 3.54 0.00 0.00
TOTAL 0.00 0.00 162.37 7.07 28.37 209.48 0.00 0.00
MIN 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
MAX 0 0 17.03 2.69 7.03 10.74 0 0
AVE 0 0 5.24 0.23 0.92 6.76 0 0

B. Static Water Levels
All City of Rialto wells are sounded each month, both active and inactive well sites.

Depth-to-water is measured from the well head to the static water surface. Increases in depth-to-water represent a decrease in static water level.

Well Levels
Well
Depth to
Pump
Historical
Maximum Depth to
Water May Jun Jul Aug Oct Nov Dec Jan Feb Mar Apr May
Chino #1 (X) 580' 429' 413' 413' 411' 410' 410' 410' 411’ 411’ 411’ 410' 411' 410' Chino #2 493' 369' 337' 334' 334' 333' 331' 333' 334’ 334’ 321’ 321' 334' 334' City #1 260' 392' 117' 119' 121' 120' 120' 122' 122’ 117’ 121’ 125' 124' 124' City #2 500' 402' 122' 129' 131' 125' 126' 126' 126’ 128’ 130’ 125' 125' 131' City #3 (X) 525' 505' 414' 417' 418' 418' 417' 417’' 417’ 417’ 420’ 410' 410' 406' City #4A 528' 406' 362' 367' 370' 366' 360' 359' 363’ 362’ 362’ 357' 363' 363' 117
7 City #5 (X) 385' 364' 316' 316' 316' 316' 317' 318' 319’ 317’ 317’ 314' 314' 312' Rialto #1 (X) 650' 588' 563' 564' 565' 562' 563' 566' 566’ 565’ 566’ 564' 564' 564' Rialto #2 (X) 550' 502' 496' 498' 498' 497' 496' 494' 496’ 495’ 496’ 496' 495' 492' Rialto #3 569' 478' 470' 470' 472' 471' 471' 474' 474’ 474’ 475’ 469' 470' 471' Rialto #4 (X) 450' 418' 415' 414' 413' 414' 413' 412' 412’ 412’ 411’ 410' 409' 409' Rialto #5 560' 387' 386' 387' 387' 387' 386' 386' 386’ 386’ 385’ 383' 383' 382' Rialto #7 (X) 362' 356' 354' 356' 357' 357' 357' 359’ 359’ 359’ 481' 474' 473' Miro #3 563' 492' 483' 481' 480' 479' 480' 480' 478’ 481’ 480’ 482' 480' 480' EW-1 650' 474' 475' 460' 471' 467' 480' 477’ 478’ 479’ 472' 472' 472'

(X) = In-Active Well

Sample Date: 5/26/26 Sample Site Location Results
Type of Sampling Chino 2 City 2 City 4A Rialto 3 Rialto 5 Miro 3 EW-1 BLF Cactus BLF 6-9 OPRTP
Total Coliform A A A A A A A A A A
E. Coli A A A A A A A A A A
Nitrate as N 3.3 3.5 2.7 5.3
Perchlorate (CLO4) <1.0* 5.4* 8.7* 130*
Total Dissolved
Solids 250 240 330 200 250 190 240 360 350 200

A. Sample Site Location Results
Rialto Distribution Sample Results
May 2026
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 1 -
5/06/26 mg/l P/A P/A Color Units TON NTU
335 W. Rialto 1.00 A A
1228 W. Merrill 1.20 A A
256 N. Fillmore 1.20 A A
119
9 987 W. Grove 1.00 A A
978 N. Driftwood 1.10 A A
1451 N. Linden 1.20 A A
469 W. Jackson 1.10 A A
935 E. Mariposa 1.40 A A
1000 N. Joyce 1.40 A A
766 N. Chestnut 1.10 A A
149 W. Victoria 1.20 A A
313 E. McKinley 1.40 A A
609 E. South 1.30 A A
273 E. Alru 1.20 A A
1161 S. Lilac 1.20 A A
101 E. Valley 1.10 A A
CYCLE 2 -
5/13/26 mg/l P/A P/A Color Units TON NTU
210 N. Park 1.20 A A
101 S. Larch 1.20 A A
320 N. Wisteria 1.20 A A
861 W. Grove 1.20 A A
1168 N. Glenwood 1.20 A A
1320 N. Fitzgerald 1.00 A A
860 N. Willow 1.10 A A
Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 2 CONT.
- 5/13/26 mg/l P/A P/A Color Units TON NTU
209 E. Cornell 1.00 A A
120
10 643 E. Margarita 1.10 A A
1170 N. Terrace
Rd. 1.00 A A
681 E. Erwin 1.10 A A
402 E. Merrill 1.20 A A
261 W. Wilson 1.10 A A
532 S. Iris 1.00 A A
281 W. Hawthorne 1.30 A A
379 W. Valley 1.30 A A

CYCLE 3 -
5/19/26 mg/l P/A P/A Color Units TON NTU
236 N Willow 1.40 A A <3.0 1 <0.10
775 E. Foothill 1.20 A A <3.0 1 <0.10
878 N. Primrose 1.20 A A <3.0 1 <0.10
369 E. Van
Koevering 1.20 A A <3.0 1 <0.10
274 W. Valencia 1.20 A A <3.0 1 <0.10
1566 N. Fillmore 1.10 A A <3.0 1 <0.10
932 N. Idyllwild 1.10 A A <3.0 1 <0.10
644 N. Smoketree 1.10 A A <3.0 1 <0.10
605 W. Rosewood 1.20 A A <3.0 1 <0.10
1189 W. Second 1.00 A A <3.0 1 <0.10
775 W. Rialto 1.10 A A <3.0 1 <0.10
211 E. Wilson 1.10 A A <3.0 1 <0.10
595 E. Huff 1.10 A A <3.0 1 0.14
121
11 Sample Location Free Cl Res
(Field) Total Coliform E. Coli Apparent Color Odor Threshold Turbidity CYCLE 3 CONT.
- 5/19/26 mg/l P/A P/A Color Units TON NTU
1005 S. Riverside 1.00 A A <3.0 1 <0.10
794 S. Verde 1.20 A A <3.0 1 <0.10
1055 W.

Bloomington 1.20 A A <3.0 1 <0.10
CYCLE 4 -
5/27/26 mg/l P/A P/A Color Units TON NTU
375 S. Cactus 1.30 A A
101 S. Linden 1.40 A A
234 N. Larch 1.40 A A
575 N. Driftwood 1.40 A A

1355 W. Shamrock 1.40 A A

992 N. Yucca 1.30 A A
481 W. Cornell 1.40 A A
158. E. Shamrock 1.30 A A

749 E. Holly 1.40 A A
545 E. Victoria 1.40 A A
200 N. Sycamore 1.40 A A

407 E. Allen 1.30 A A
399 E. Montrose 1.20 A A

856 S. Orange 1.20 A A
911 S. Cactus 1.20 A A
220 W. Valley 1.30 A A

122
12 B. Violations
No violations were received during this reporting period.

C. Source Water Total Dissolved Solids (TDS)
Veolia has a goal of maintaining an acceptable blended TDS level between all its sources. This goal is achieved by shifting production to or from the lowest TDS wells or purchasing low TDS water while adhering to the overall water supply strategy and meeting system demands. The TDS was on average 259 mg/L for the month of April as compared to 268 mg/L in May. The TDS levels are below the secondary maximum contaminant level requirements.

IV. CHEMICAL USE
Sodium hypochlorite is the only chemical added to the water system. A total of 3181 gallons of sodium hypochlorite was used in May as compared to 2630 gallons used in April.

123
13 V. ELECTRICAL USE
Southern California Edison (SCE) data for May 2026. We will provide the data as it is received, thus will include yearly usage received to date.

SCE kWh
Year Month
Billed
Usage
2025 April 428,976
2025 May 505,764
2024 June 575,467
2025 July 842,561
2025 August 669,021
2025 September 752,171
2025 October 654,454
.2025 November 734,743
2025 December 647,384
2026 January 592,795
2026 February 668,944
2026 March 601,554
2026 April 672,257
2026 May
VI. WATER QUALITY COMPLAINTS
No complaints were received during this reporting period.

124
14 VII. OPERATIONS UPDATE
The overall operational strategy is to meet the daily water demand. The City of Rialto water system has six operational wells, one of which is owned by the County of San Bernardino and operated by Veolia; Oliver P. Roemer Treatment Plant (OPRTP), which is jointly owned by the City (25%) and West Valley Water District (WVWD); purchased water through the Baseline Feeder (BLF) system from San Bernardino Valley Municipal Water District (SBVMWD); and, if required to meet demand, additional water can be supplied by the City of San Bernardino (CSB) through the BLF for emergency supply only with no guarantee of actual delivery. Water produced from City Well 4A discharges into the BLF and its production is included in deliveries from that shared transmission line when City Well 4A is in service.

The overall pumping strategy is based on adjudicated rights, well availability, remediation requirements, and quality of source, cost to operate, and varying weather conditions. TDS effluent concentrations for the City of Rialto WWTP are taken into consideration when operating the facilities and water sources.

A. Operational Wells
City well #2 will be out of service for 4 weeks to replace the upper pump column bearing; will return into service by March 2026. City well #2 returned to service on March 10th
Valve Activity
On the basis of information collected in 2019, Veolia now has a baseline assessment of all valves and has initiated a new cycle of valve exercising. Five valves were exercised in the month of March.

Valve Turning Progress
Valves
Turned
2020 530
2021 340
2022 463
2023 750
2024 379
2025 338
2026 314
125
15 B. Hydrant Flushing
There are 63 hydrant/dead ends that are flushed annually to maintain water quality.

All annual flushing will be completed by December 2026.

Hydrant/Dead End Flushing
Progress
2026
January 0
February 0
March 0
April 0
May 5
June 0
July 0
August 0
September 0
October 0
November 0
December 0
Total 0
Progress % (100)
C. Sanitary Survey
DDW performed field site visits on May 22 and August 22, 2024. The results of the sanitary survey were received on September 19, 2024. All minor deficiencies have been corrected and submitted to DDW.

VIII. ASSET MANAGEMENT
The following work orders were completed by Water production staff for the month of May:
• Preventive Maintenance –268
• Corrective Maintenance –0
• Predictive Maintenance –0
– 268 PMs planned for June 2026
126
16 A. Main Breaks, Service Leaks, Adverse Water Quality and Health/Safety Issues
The following work orders were completed by water distribution staff for the month of May:

Main Line: Service Line: Hydrant Replacements:

Angle Meter Stops10: Meter Box & Lid
Replacements:3
Meter Leaks/
Replacements:18

B. Customer Call Outs, Hydrant hits
Customer Call Outs:15 Meter Leaks:12 Requests for Water to be turned on/off:10
Leaks in the street:7 Leaking Fire Hydrant:5 Hit/shed hydrant: 2

C. Major Equipment and/or Machinery Outages

127
17 IX. RAINFALL TOTALS

CITY OF RIALTO

RAINFALL FOR PAST FIVE YEARS

128
18 Weather
Date Clear P.Cloudy Cloudy
5/1/26 X
5/2/26 X
5/3/26 X
5/4/26 X
5/5/26 X
5/6/26 X
5/7/26 X
5/8/26 X
5/9/26 X
5/10/26
5/11/26 X
5/12/26 X
5/13/26 X
5/14/26 X
5/15/26 X
5/16/26 X
5/17/26 X
5/18/26 X
5/19/26 X
5/20/26 X
5/21/26 X
5/22/26 X
5/23/26 X
5/24/26 X
5/25/26 X
5/26/26 X
129
19 5/27/26 X
5/28/26 X
5/29/26 X
5/30/26 X
5/31/26 X

130

RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

Reporting Period:

May 2026

Prepared for: Rialto Water Services
Prepared by: Veolia Water West Operating Services
131

RIALTO WASTEWATER

OPERATIONS AND MAINTENANCE REPORT

Contents

EXECUTIVE SUMMARY

1. Collection System / Customer Service Log
a. Collection System Activities
b. S.S.O. dates
c. Customer Service Call Outs

2. Wastewater Treatment Plant - Monthly Overview
a. Significant events during the month

4. Monthly Safety Program Overview

5. Biosolids, Chemicals, and Utilities
a. Monthly Biosolids Production
b. Monthly Chemical Consumption
c. Monthly Utilities Consumption

6. Odor Complaints / Actions Taken

7. Major Equipment and/or Machinery Outages

9. Complaint Logs

TABLES

● Treatment Facility – Monthly Performance Summary
● Collection System- Monthly Pipe Cleaned
132

RIALTO WASTEWATER

MONTHLY OPERATIONS REPORT

EXECUTIVE SUMMARY

Highlights of this month’s Wastewater O&M report include the following:

● The treatment plant performed well and met all compliance parameters. ● There were four residential call-outs for sewer collection issues.

1. Collection System/Customer Service Log
a. Collections group activities this month:

Category Current Month
Statistics
Prior Month Statistics 2026 Year to Date
Statistics
Sanitary sewers are cleaned using the
conventional method, including feet, which
includes “Hot spot cleaning.”
11,577 15,388 101,688
Sanitary sewers assessed using the SL-RAT
method, feet 0 0 0
CCTV Inspection, miles (26 is the annual goal)* 1.47 1.69 12.43 Manhole Inspections 6 8 18
USA Dig Alert Markings, count 45 48 160
Residential call-outs 3 4 14
Sanitary sewer overflows 0 0 0

b. S.S.O. dates:
c. Customer Service Call Outs – See Item 9 for details.

2. Wastewater Treatment Plant – Monthly Overview
●
a. Significant events during the month were:

Operating the treatment plant back into compliance.

3. Treatment Facility Performance/Laboratory Activities a. See the attached Table 1, Monthly Performance Summary.

b. Summary of Notices and Laboratory Tests/Reports filed with government agencies.

The monthly submittal of State/Federal discharge monitoring reports was completed promptly.

c. Effluent specification exceedance discussion
See Section 2 above. N/A

4. Monthly Safety Program Overview

Category Monthly Statistic
Safety Training Topics 0
Lost Time Incidents count* 0
Recordable Incidents, count 0
Near Miss Incidents, count 0
Vehicle Incidents, count 0

*A lost time incident has not occurred since 9-3-2020, totaling 2,096 days.

133

5. Biosolids, Chemicals, and Utilities

a. Monthly Biosolids Production

Biosolids Current Month
Statistics
Prior Month Statistics 2026 Year-to-Date
Statistics
Wet Tons Produced 1,115.32 1,035.5 6,095.21

b. Monthly Chemical Consumption

Chemical Current Month
Gallons Used
Prior Month
Gallons Used
Sodium Hypochlorite, Tertiary Disinfection 28,696 27,932 Sodium Bisulfite, Discharge Dechlorination 9,467 5,551
Ferrous Chloride, Digester Gas Conditioning 3,595 4,075 Polymer, Gravity Belt Thickener 270 291
Polymer, Belt Filter Press 726 714
Alum, Tertiary Filters 0 134

c. Monthly Utilities Consumption

Utility Current Month
Statistics
Prior Month Statistics
Electricity WWTP, KWH 448385 407570
Electricity Lilac LS, KWH 919 949
Electricity Sycamore LS, KWH 478 515
Electricity Ayala LS, KWH 7686 6966
Electricity Agua Mansa LS, KWH 2083 2248
Electricity Cactus LS, KWH 317 141
Electricity Ramrod LS, KWH 528 631 Frisbee Park LS, KWH 712 723
El Rancho Verde LS, KWH 2158 2197
Natural Gas WWTP, Therms 4862 6493
* LS is in bypass mode, pending CIP completion
** SCE has not updated this account.

6. Odor Complaints Received/Actions Taken

7. Major Equipment and/or Machinery Outages
● Sludge Holding Tank
● Aeration Basin #3 is currently offline.
● Chlorine Contact Tanks #1 and #2 are offline

8. Outside Agency Activities during the Month
a. Government agency or property insurance inspections
None

b. Government agency environmental, health, or safety tests/monitoring Permit testing was completed for this month

c. Government agency notices of violation received
No notices were received.

134

d. Government agency monitoring
Routine monitoring reports were submitted.

e. Other matters of concern
None

9. Customer Service Callout Details Log

Date Address Comments Personnel Manhole To
Manhole
5/1/2026 340 E Orchard Customer service reported a resident's recurring overwhelming sewer smell at 340 E Orchard. The
technician investigated, found no current smell or
manhole issues, and will schedule a courtesy clean.

ET
5/4/2026 855 W Valley Customer service reported a possible sewer backup at 855 W Valley after speaking with the resident. The
technician determined it was private property, advised a plumber, and placed containment socks near the storm
drain.

BVO
5/5/2026 1173 CACTUS #2 Customer service received a call from City Public Works regarding a resident at 1173 S Cactus #02 who reported
roaches coming from a nearby manhole and requested
that wastewater spray the area. The technician stated
that they have addressed this same problem for the
resident before. Golden Bell recently sprayed the area, and they personally placed poison below the manhole
ring, then corked the lid. Despite these efforts, Britt noted the resident is still not satisfied. A courtesy clean was done of the sewer line and manhole.

BVO

135

Table 1 Summary

136

137

Table 2 Summary

138

139

Table 3 Summary

140

141

Monthly Sewer Line Cleaned

142

143

Water SubcommitteeAugust 27, 2026

Water Subcommittee
August 27, 2026