Fairfield City Council
May 6, 2025

N-C-268-60-22-20-WP-R-WMP-TM2

FAIRFIELD DEMAND PROJECTIONS
The existing and projected long-term (2050) water demands for the City of Fairfield, as taken from Chapter 3 of the Master Plan Report, are summarized in Table 1 in units of millions of gallons (MG) annually and mgd. Considerations for possible expansion of the Waterman WTP must consider these projections, including how such water demands will be served from the Waterman WTP and its companion facility, the North Bay Regional Water Treatment Plant (NBRWTP), an assessment of which is addressed in a separate TM titled “NBRWTP Condition Assessment, Performance Evaluation, and Expansion Analysis” (NBRWTP TM).

The Coastland TM recommended that Fairfield adopt a policy whereby “firm capacity” is defined as equaling 90 percent of the maximum reliable treatment capacity of the overall facility, and that this multiplier would only be applied to the larger of Fairfield’s water treatment facilities (the NBRWTP).

Fairfield staff have agreed to this policy, and the capacity assumptions of this analysis reflect that approach. However, because firm capacity is typically defined as the overall facility capacity with the largest units out of service, this TM uses the terms “available capacity” rather than firm capacity.

Table 1. Summary of Existing and Future Water Demands, City of Fairfield Planning Period
Total Annual
Production, MG(a)
Average Day
Production, mgd(a)
Maximum Day
Production, mgd(b)
Average (2020-2022) 6,990 19 36
Long-Term (2050) 10,578 29 55
(a) Taken from Tables 3-5, 3-7, and 3-14 from the Master Plan Report. (b) Based on a recommended maximum day demand peaking factor of 1.9, per Chapter 3 of the Master Plan Report.

WATER QUALITY CHARACTERIZATION AND PERFORMANCE ASSESSMENT In conducting an assessment of the Waterman WTP performance, the following key water quality parameters were analyzed:
• Raw and Filtered Water TOC
• Raw Water TDS
• Settled and Filtered Water Turbidity
• Treated Water pH and Temperature
• Treated Water Chlorine Residual
• CT Ratio
• Wash Water Return Turbidity
• Finished Water DBPs
TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Raw and Filtered Water TOC
Total organic carbon (TOC) is an indicator of disinfection byproduct (DBP) formation potential. Water quality regulations require that TOC be removed according to the removal percentages shown in Table 2.

Based on quarterly data collected at the Waterman WTP and reported online from the State Safe Drinking Water Information Site (SDWIS), there are a total of 42 TOC removal values for which simultaneous raw and treated water TOC and source water total alkalinity were collected. Of these, all but one of the groupings has total alkalinity values between 143 milligrams per liter (mg/L) and 181 mg/L and raw water TOC values between 2.30 mg/L and 3.97 mg/L. (A single total alkalinity value of 50 mg/L collected on July 13, 2020 was removed from the data set due to being clearly anomalous.) The TOC removals for this data set ranged from 22.3 percent to 50.0 percent, which in every case exceeds the 15 percent minimum TOC removal requirement shown in Table 2. In addition, a single data grouping had a total alkalinity of 99 mg/L, a raw water TOC value of 6.20 mg/L, and a TOC removal of 56.5 percent.

While not statistically significant, this result far exceeds the 35 percent minimum TOC removal requirement shown in Table 2.

Table 2. TOC Removal Standards
Source Water
TOC, mg/L
Source Water Alkalinity, mg/L as CaCO3
0–60 >60–120 >120 Not available
Required Minimum TOC Removal, percent
> 2.0 – 4.0 35 25 15 no applicable standard
> 4.0 – 8.0 45 35 25 no applicable standard
> 8.0 50 40 30 no applicable standard
In addition to measuring raw and filtered water TOC, Fairfield also measures ultraviolet (UV) absorbance of those same streams. UV absorbance serves as a useful surrogate for TOC, especially as a process control test because analysis can be completed quickly by an operator. However, no regulatory requirements apply to UV absorbance, whereas such requirements do apply to TOC. For these reasons, the UV absorbance results at the Waterman WTP are not considered further in this analysis.

Raw Water TDS
Total dissolved solids (TDS) is a parameter that is subject to a secondary drinking water maximum contaminant level (MCL) of 500 mg/L for taste and aesthetics. In general, TDS is neither added nor removed to any significant degree through any of the Waterman WTP treatment processes; therefore, raw water TDS concentrations are a reliable indicator of finished water TDS.

Raw water TDS statistics for the period of 2018 through 2022 are summarized in Table 3. As indicated, the PSC raw water reliably meets the applicable standard for TDS, with a maximum observed value (255 mg/L) that is approximately half the secondary MCL.

TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Table 3. Summary Statistics for PSC Raw Water TDS, 2018–2022 Units Results Results
Data Count -- 19
Average mg/L 205
Minimum mg/L 167
Maximum mg/L 255
Standard Deviation mg/L 24.9
Settled and Filtered Water Turbidity
Applicable standards exist for both settled and filtered water turbidity. For settled water, the goal established by the California Cryptosporidium Action Plan is to achieve a turbidity below 2 NTU in the effluent of the sedimentation basin at all times. For filter effluent, the following standards apply, per 40 CFR 141.718:
• Combined filter effluent turbidity must be less than or equal to 0.15 NTU in at least 95 percent of the measurements.
• Filtered water turbidity for each individual filter must be less than or equal to 0.15 NTU in at least 95 percent of the measurements recorded each month. • No individual filter may have a measured turbidity greater than 0.3 NTU in two consecutive measurements taken 15 minutes apart.

For this analysis, settled water (Actiflo) and combined filter effluent were analyzed for the period of 2016 through 2022. However, a data gap exists covering the period of late August through December 2020.

Individual filter effluent data were not provided and could not therefore be analyzed.

The results for settled water are shown on Figure 3. As indicated, only two exceedances of the 2 mg/L standard were observed in the seven-year period evaluated, one in January 2017 and one in January 2019.

Both readings are associated with periods of extreme rainfall and unusually high flows.

The results for the combined filter effluent turbidity are shown on Figure 4. As indicated, the combined filter effluent has only exceeded 0.15 NTU standard six times out of a total of 2,364 measurements (0.25 percent), five of which occurred in 2016. These results indicate very reliable filter performance during the period evaluated.

TM – City of Fairfield
May 24, 2024

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Figure 3. Settled Water (Actiflo Effluent) Turbidity, 2016-2022 Figure 4. Combined Filter Effluent Turbidity, 2016-2022 TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Treated Water pH and Temperature
Treated water pH and temperature are recorded daily at the Waterman WTP and are important parameters for the sizing of any future chlorine contact basin facilities. A summary of the data for the period of 2015 through 2022 is presented in Table 4. As expected, a seasonal trend exists for temperature, though not for pH. Similarly, a total of 14 temperature readings were removed due to being either anomalously low or anomalously high.

Table 4. Summary Statistics for Filtered Water Temperature and pH, 2015–2022 Month
Filtered Water Temperature, °C Filtered Water pH, standard units Minimum Maximum Average Minimum(a) Maximum Average
January 7.2 14.6 11.5 7.98 8.40 8.19
February 9.7 17.3 13.5 7.96 8.39 8.16
March 10.7 18.7 15.5 7.86 8.37 8.14
April 14.0 20.7 17.7 7.81 8.32 8.15
May 16.2 22.9 19.0 7.87 8.40 8.12
June 17.7 23.1 20.5 7.91 8.36 8.11
July 17.4 22.6 20.5 7.91 8.31 8.10
August 17.2 23.1 20.5 7.93 8.32 8.10
September 16.3 22.9 19.7 7.90 8.32 8.11
October 13.4 20.2 17.4 7.89 8.36 8.13
November 9.2 18.9 14.4 7.70 8.35 8.14
December 8.5 14.9 11.5 7.92 8.43 8.18
Overall 7.2 23.1 16.9 7.70 8.43 8.14
(a) A single pH value of 7.27 from November 2019 appears anomalous and was removed from the data set. The previous day reading was

8.15 and the next day reading was 8.25. Also, the next lowest value in the 8-year data period is 7.70.

Treated Water Chlorine Residual
Chlorine residual readings in the finished water at the Waterman WTP are measured continuously onsite and in both the west side and east side distribution systems. The results are reported daily in Fairfield’s monthly water quality reports.

The chlorine residual in the water entering the distribution system is required to be maintained between 0.2 mg/L and 4.0 mg/L. Chlorine residual results are relevant to the sizing of any future chlorine contact basin facilities because a higher chlorine residual requires less contact time to achieve the same disinfection as a lower chlorine residual. Therefore, understanding the typical chlorine residual value allows for selection of a contactor volume that will ensure the required disinfection is achieved.

The results of all three finished water chlorine residual data sets are summarized in Table 5. As indicated in the table, only three values in eight years exceeded 2 mg/L; moreover, those values do not coincide with high values at the other locations, thus suggesting anomalous results. In addition, while a total of 39 values fell below 0.2 mg/L (including 11 zero values), there were only three instances where the values at both distribution system locations were below 0.2 mg/L, all of which occurred on three consecutive days in November 2021 when the Waterman WTP was not operating. It should be noted that no data were provided for the period of late August 2020 through December 2020.

TM – City of Fairfield
May 24, 2024

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Table 5. Waterman WTP Chlorine Residual Results, 2015–2022 Location
Measurements, mg/L Count
Average Minimum Maximum Total >2 mg/L <0.2 mg/L 0 mg/L
Onsite 1.52 0.06 14.7 2,755 1 1 0
East Side Distribution 0.79 0 7.84 2,786 2 15 9
West Side Distribution 1.18 0 1.6 2,793 0 23 2
CT Ratio
CT is calculated by multiplying the free chlorine residual concentration (C) measured at the end of the contact period by the time (T or T10) it takes for 10 percent of the water to exit the chlorine contactor. The CT ratio is defined as the ratio of the CT achieved within the disinfection contactor and the CT required to achieve primary disinfection. The CT ratio must be greater than 1.0 to ensure that primary disinfection is being reliably achieved and to achieve the regulatory requirements for primary disinfection.

The Waterman WTP has two parallel disinfection trains, an east train and a west train, both of which need to comply with the CT ratio requirements. CT ratio values are calculated daily for both trains. A summary of the results for the period of 2015 through 2022 is presented in Table 6. As indicated in the table, the Waterman WTP consistently meets its CT ratio requirements. In 2,794 instances, the east train never fell below a CT ratio 2.98, and the west train only fell below a CT ratio of 2.0 on four occasions (0.14 percent of all values) and below a CT ratio of 1.0 on one occasion (December 23, 2018).

Table 6. Waterman WTP CT Ratio Results, 2015–2022
Disinfection Train Minimum Maximum Average Median Count East 2.98 7,138 74.7 17.2 2,794
West 0.98 7,204 23.3 10.3 2,794
Wash Water Return Turbidity
Wash water return flow and turbidity are measured daily at the Waterman WTP. According to the Cryptosporidium Action Plan (State Water Resources Control Board, Division of Drinking Water, April 2019): “An operational goal of less than 2.0 NTU should be established for the backwash water returned to the headworks of the treatment plant. Use of coagulant chemicals to assist in the solids separation is advisable and usually necessary to meet the 2.0 NTU goal.” The wash water return turbidity at the Waterman WTP for the period of 2015 through 2022 is shown on Figure 5. Two occurrences of 0 NTU and three occurrences ranging from 34 NTU to 283 NTU were excluded from the data set due to likely being anomalous readings. Key statistics are shown below. • Minimum: 0.02 NTU
• Maximum: 13.7 NTU
• Median: 0.38 NTU
• Data Count: 2,784
• Count >2.0 NTU: 107
• Percent >2.0 NTU: 3.8
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May 24, 2024

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During the period of 2015 through 2022, the Waterman WTP wash water return exceeded the 2.0 NTU standard 3.8 percent of the time. The majority of the exceedances appear to have occurred during extremely wet, high surface water flow periods in 2017, 2019, and 2021.

Figure 5. Washwater Return Turbidity, 2015-2022
Finished Water DBPs
The US Environmental Protection Agency (EPA) and the State of California maintain primary drinking water maximum contaminant levels (MCLs) for DBPs, including for total trihalomethanes (TTHMs) and for five haloacetic acids (HAA5) of 0.080 mg/L and 0.060 mg/L, respectively. Table 7 summarizes the results of quarterly samples collected at eight locations throughout the City of Fairfield water distribution system.

As indicated in the table, the results are consistently in compliance with the existing MCLs. In the case of TTHMs, a total of three values out of 166 have exceeded 0.070 mg/L over the period of 2018 through 2022, thereby approaching but not exceeding the 0.080 mg/L standard. It should also be noted that the regulations are based on a running annual average for each sampling location, such that even a single sample exceeding the MCL would not necessarily equate to a violation of the standard.

Table 7. Summary Statistics for Treated Water TTHMs and HAA5 (a) Statistic (a) TTHMs, mg/L HAA5, mg/L
MCL 0.080 0.060
Average 0.038 0.0098
Minimum 0.015 0.0035
Maximum 0.077 0.032
(a) Based on data from eight sampling locations: Huntington Court, Arlington Circle, Bridge Valve Vault, Pebble Beach Circle, Eastridge Station, Leafwood Court, Dawson Creek Drive, and Gregory Street. The data period is 2018–2022 for TTHMs and 2019–2022 for HAA5.

TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2

EMERGING REGULATIONS
In addition to the parameters discussed in the previous section, a series of new regulations involving water quality parameters of potential concern are being contemplated or are expected to be issued, which may require modifications or additions to existing treatment processes. Notable water quality parameters of interest include:
• DBPs
• PFAS
• Manganese
• Cyanotoxins
• Microplastics
The effects of existing and emerging drinking water regulations are described in detail in Chapter 4 of the Master Plan. Key concerns relevant to this assessment are summarized in this section.

DBPs
US EPA is contemplating a revision to existing disinfection byproduct rules that may include increasing TOC removal requirements, developing more stringent standards for both TTHMs and HAA5, establishing standards for all nine of the chlorinated and brominated haloacetic acids (HAA9), and/or establishing standards for specific disinfection byproduct TTHM species. Since the City’s water supply is entirely surface water and given that surface waters typically have significantly higher TOC levels than groundwater supplies, the impacts from these potential regulation changes could be substantial and could obligate the City to implement modified or additional treatment processes (e.g., increased removal of TOC in the pretreatment process). The City should consider expanding its DBP sampling to evaluate DBP speciation within the distribution system.

PFAS
New federal regulations for per- and polyfluoroalkyl substances (PFAS) are anticipated to be finalized by EPA in December 2023, and will be enforceable 36 months later. The City should begin monitoring for and quantifying the presence of the six PFAS species included in the new regulations to prepare for the upcoming regulation and to help identify any mitigation that may be required..

Manganese
Manganese is one of the 15 contaminants included in EPA's National Secondary Drinking Water Regulations, which are non-mandatory water quality standards established as guidelines to assist public water systems in managing their drinking water for aesthetic considerations, such as taste, color, and odor. The secondary MCL for manganese is 0.05 mg/L, whereas treated water samples from the City’s water treatment plants over the past 10 years have typically ranged between non-detect and 0.02 mg/L.

EPA has indicated that development of an updated health assessment for manganese is ongoing, although no schedule for public review has been released. It is therefore possible that the updated health assessment could trigger the establishment of a primary (enforceable) MCL for manganese.

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May 24, 2024

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Cyanotoxins
EPA has developed two distinct Health Advisories for the cyanotoxins microcystins and cylindrospermopsin for two population groups:
• The 10-day health advisories for sensitive populations (i.e., infants, elderly, pregnant mothers, etc.) are 0.3 ppb for microcystins and 0.7 ppb for cylindrospermopsin • The 10-day health advisories for the general adult population are 1.6 ppb for microcystins and 3.0 ppb for cylindrospermopsin
While the EPA published Health Advisories are not federally enforceable, the City should consider monitoring for these cyanotoxins in the source water and treated water, particularly during times when algae species may be present in untreated source water, such as during the spring and summer months.

Note that treatment processes may release cyanotoxins from algae cells due to lysing of the cells; therefore, absence of cyanotoxins in untreated source water does not necessarily mean that cyanotoxins will be absent from treated water.

Microplastics
As defined by State Water Resources Control Board, Resolution No. 2020-0021, Adoption Of Definition Of ‘Microplastics In Drinking Water’, microplastics are defined “solid, polymeric materials to which chemical additives or other substances may have been added, which are particles that have at least two dimensions that are greater than 1 and less than 5,000 micrometers (µm). Polymers that are derived in nature that have not been chemically modified (other than by hydrolysis) are excluded”. In addition, the State has adopted a standard methodology for testing and reporting microplastics in drinking water. As indicated in the Policy Handbook Establishing a Standard Method of Testing and Reporting of Microplastics in Drinking Water (August 2022, Division of Drinking Water, State Water Resources Control Board), Fairfield has been identified as one of the water systems that will potentially be asked to participate in microplastics monitoring during Phase 1, which is anticipated to begin in Fall 2023 and conclude in Fall 2025. At a minimum, water systems are anticipated to be required to report concentrations of microplastics that are 50 micrometers long or the minimum size listed in the standard method utilized by the laboratory for analysis, whichever is smaller.

ON-SITE CONDITION ASSESSMENT
The West Yost project team performed on-site condition assessments of critical assets on February 24 and March 2, 2023. Critical assets generally include structures, major mechanical equipment, major electrical equipment, and major instrumentation and controls systems elements. The methodology and results of the condition assessment are summarized in the following sections:
• Assessment Methodology and Procedures
• Condition Rating Criteria
• Condition Assessment Results and Recommendations
The results of the condition assessment were also used to develop the Waterman WTP risk assessment (described in the following section of this TM). Together, the condition and risk assessments were used to develop a prioritized list of age-, condition-, and operations-based capital improvements for the Waterman WTP, presented in the last section of this TM.

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May 24, 2024

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Assessment Methodology and Procedures
In addition to visual inspection of assets, the condition assessment of the Waterman WTP consisted of the following steps: (1) review of existing drawings and computerized maintenance management system (CMMS) asset databases; (2) operational interviews with operation and maintenance (O&M) and engineering staff, and (3) a seismic risk assessment conducted by TJC and Associates using information collected during review of as-builts and the on-site inspection. Each of these steps is further described below.

Review of Existing Drawings and Asset Information
The following drawings and documents were received from Fairfield and reviewed as a part of the assessment:
• 1974 Waterman Water Treatment Plant (James M. Montgomery) • 1985 Expansion of Waterman Treatment Plant (James M. Montgomery) • 1990 Construction of Waterman Treatment Plant Modifications (James M. Montgomery) • 2010 Waterman Water Treatment Plant Expansion and Modernization Project (MWH) • 2014 Waterman Water Treatment Plant Replacement CO2 Project (MWH) • 2021 Ozone System Improvements Project (West Yost)
• 2023 Asset Hierarchy (Waterman WTP CMMS Export)
• (In progress) Waterman Water Treatment Plant High Lift Pump Station and Power Upgrade Project (Coastland)
The information gathered from the review of these sources was prioritized by published year of the drawing or document. Where multiple documents contained information about a given asset, later documents were assumed to have the most up-to-date information and were used to develop the asset registry.

Operational Interviews
Fairfield operations and maintenance staff were interviewed during the on-site assessment by the condition assessment team to gain insight on the O&M history and routine upkeep of the Waterman WTP.

Topics discussed included the following:
• Maintenance and repair history of major equipment items • Routine maintenance activities and associated frequency • Operation and performance of critical assets and processes • Satisfaction with the operational capabilities of various assets • Emergency response operations
Seismic Risk Assessment
TJC and Associates completed a seismic risk assessment (ASTM E2026) and Tier 1 screening (ASCE/SEI 41) of the Waterman WTP. The Tier 1 procedure is used to identify potential seismic deficiencies in the structural lateral force-resisting system and non-structural building systems. The evaluation was completed primarily using record drawings in conjunction with a visual site inspection. The methods used for this evaluation, as well as its inherent limits, were documented in a TM included herein as Appendix A (Condition Assessment of Waterman Water Treatment Plant, ASTM E2026, ASCE/SEI 41, and FEMA P-154).

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May 24, 2024

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Condition Rating Criteria
The condition assessment team assigned a condition rating to each critical asset based on field observations, notes from discussions with O&M and engineering staff, photographs, and videos.

Numerical ratings were selected from the standardized condition assessment rating systems defined in Table 8.

Table 8. Rating Criteria used in the Waterman WTP Condition Assessment Condition
Rating Level
Grading
Definition Structural Mechanical Electrical
Instrumentation
& Controls
1 Excellent
New condition;
No damage to
concrete
New condition
2 Good
Little to no
corrosion;
minimal damage
to concrete
Minor cosmetic
surface abrasion
or coating
deterioration
Cosmetic surface
defects with no
impact on
performance
Cosmetic surface
defects with no
impact on
performance
3 Fair
Minor surface
corrosion;
damage to
concrete mortar
Average surface
or structural wear
and tear
Average physical wear and tear
4 Poor
Moderate to
significant
corrosion; loss of
concrete
mortar/damage
to rebar
Moving parts
show excessive
wear and tear and
require
rehabilitation
within two years
or less
Above average wear and tear and/or
equipment is no longer available as
new from the manufacturer and will
require replacement within five years
or less
5 Requires
Immediate
Attention
Severe corrosion;
significant
damage to
structure;
Immediate repair/
replacement
needed
Physical condition
is beyond
acceptable level
and needs
immediate
replacement
Physical condition is beyond acceptable
level and/or asset replacement
equipment is no longer available and
needs immediate replacement
Condition Assessment Results and Recommendations
This section summarizes the results and high-level observations and recommendations of the condition assessment. An overall summary of major condition and operations-based observations is presented, followed by additional discussion of results presented in order of process area (e.g., pretreatment, filtration, disinfection, etc.). Representative photographs, organized by process area, are provided in Appendix B.

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May 24, 2024

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Overall Summary of Condition Assessment Observations
In general, the Waterman WTP is well-maintained and in fair condition. Major observations of note include the following:

1. Actuators, analyzers and programmable logic controllers (PLCs) are generally overdue for replacement.

2. Intake screening equipment cannot be isolated from the Putah South Canal, complicating major maintenance efforts.

3. The performance and operational flexibility of the Low Lift Pump Station (LLPS) is limited by the sizing of the existing pumps.

4. Operation and control of the ozone contactors is somewhat challenged by the number and configuration of the existing ozone residual analyzers. Additionally, residual dissolved ozone leaving the contactors may be adversely impacting the dose (and potentially performance) of filter aid polymer.

5. The filters have difficulty maintaining 60-hour runtimes at > 4 gallons per minute (gpm) per ft2, significantly limiting the plant’s operational flexibility during periods with higher treated water demands and/or more challenging raw water quality.

6. The High Lift Pump Station (HLPS) will be overhauled in 2024, resulting in new pumps, valves, and electrical equipment.

7. Sludge is unable to reach Sludge Lagoon No. 3 by gravity, rendering the lagoon useless. A new pump station is likely necessary to allow Sludge Lagoon No. 3 to be returned to service.

8. Layout and efficiency of the Operations Building can be optimized.

Process Area 11 – PSC Intake and Low Lift Pump Station
The physical structures and assets in the PSC intake and Low Lift Pump Station area are generally in fair condition, with asset and discipline-specific ratings ranging from good to poor condition. High-level recommendations related to major assets are as follows:
• Recoat corroded metallic surfaces at PSC intake (e.g., equipment supports, drum screen shrouds).
• Consider replacement of original (1974) Drum Screen No. 2 at PSC intake, which has exceeded its anticipated useful life1.
• Consider replacement of original (1974) washwater pumps at the PSC Intake, which have exceeded their anticipated useful life1.
• Replace existing PLC 41, which is past its useful life and for which replacement parts are difficult to obtain.
• Replace VFDs for LLPS pumps.
• Consider replacement of original (1974) pump discharge valves at LLPS, which have exceeded their anticipated useful life1.
1 Replacement is advised if and when the process area is scheduled for expansion or other significant modification.

In the interim, increased inspection and maintenance of the equipment is recommended.

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• Replace instruments at or beyond their anticipated useful lives, including LLPS pressure switches and level indicator.
• Consider replacement of original (1985) LLPS pumps, one of which (pump #4) is out of service, and the remainder of which have exceeded their anticipated useful life. See below for additional recommendation related to replacement of existing LLPS pumps.

The following operations-based recommendations were identified for this process area:
• Relocate and reconfigure raw water sample pumps and instruments (i.e., those currently located beneath the bridge crossing upstream of the PSC intake) for improved O&M. • Install gates or other mechanism to individually isolate intake screens. • Install coarse screening system for the PSC intake washwater pumps. • Conduct a detailed evaluation of LLPS operations to identify optimal replacement pump sizing.
• Modify the CO2 injection system to avoid gas buildup / air binding in LLPS discharge header.

Process Area 12 – Pretreatment
The physical structures and assets in the pretreatment area are generally in good condition, with asset and discipline-specific ratings ranging from good to fair condition. High-level recommendations related to major assets are as follows:
• Replace existing PLC 51, which is well past its useful life and for which replacement parts are difficult to obtain.
• Conduct additional evaluation of Flash Mix Pump No. 2 to diagnose cause of vibration. • Repair or replace Actiflo effluent channel sluice gate seal(s).

The following operations-based recommendations were identified for this process area:
• Design and install improved system for safely accessing Actiflo basin floor areas.

Process Area 13 – Ozone Contact and Intermediate Chemical Addition The physical structures and assets in the ozone contact and intermediate chemical addition area are generally in fair condition, with asset and discipline-specific ratings ranging from good to “requires immediate attention” condition. High-level recommendations related to major assets are as follows:
• Conduct Tier 2 or Tier 3 seismic risk assessments to investigate cracking in ozone contactors. • Modify ozone contactor access hatches to mitigate stripped threads. • Consider replacement of original (1990) inlet and outlet valves for Ozone Contactors Nos. 3 and 4, which have exceeded their anticipated useful life1. • Repair or replace utility crane on west side of contactors. • Replace original MCC 2M1, which has exceeded its anticipated useful life1 • Consider replacement of original (1974) inlet and outlet gates at intermediate chemical addition, which have exceeded their anticipated useful life1.

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The following operations-based recommendations were identified for this process area:
• Provide davit crane inserts for contactor confined space entry. • Evaluate modifications to ozone residual analyzers to mitigate impact of polymer carryover from Actiflo.
• Design and install method for quenching ozone residual to 1) eliminate detectable ambient ozone at ICA vault, and 2) mitigate potential impact on filter aid polymer dose.

Process Area 14 – Filters
The physical structures and assets in the filter area are generally in poor condition, with asset and discipline-specific ratings ranging from good to “requires immediate attention” condition. High-level recommendations related to major assets are as follows:
• Consider upgrading existing PLC Allen-Bradley CompactLogix processors and software for compatibility with new PLCs1.
• Replace instruments at or beyond their anticipated useful lives, including: particle counters and differential pressure transmitters.
• Further assess and seal concrete cracking between Filters Nos. 6 and 8, and in filter top slab near wall intersections.
• Consider replacement of original (1974) filtered water isolation valves, which have exceeded their anticipated useful life1.

The following operations-based recommendations were identified for this process area:
• Conduct filter optimization study to identify and evaluate opportunities to improve filter performance at loading rates higher than approximately 4.5 gallons per minute per square foot (gpm/ft2).
• Relocate filtered water sample pump configuration to allow for increased chemical dispersion and mixing prior to sampling.

Process Area 15 – High Lift PS & Bridge Vault
The physical structures and assets in the High Lift Pump Station and Bridge Vault areas are generally in fair condition, with asset and discipline-specific ratings ranging from good to “requires immediate attention” condition. High-level recommendations related to major assets are as follows:
• Complete planned HLPS improvements project, including:
— Replacement of all existing pumps, discharge valves, and actuators — New utility transformer and 480V switchgear
— New 1250 kV diesel generator
• Replace bridge vault hatch doors with material suitable for continuous moisture exposure. • Replace original (1974 and/or 1985) valves and remaining original actuators in bridge vault, which have exceeded their anticipated useful life1.

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The following operations-based recommendations were identified for this process area:
• Relocate Bridge Vault instrumentation to new above-grade housing, for improved access and better equipment protection.

Process Area 16 – Chemicals
The physical structures and assets in the chemicals area are generally in fair condition, with asset and discipline-specific ratings ranging from good to poor condition. High-level recommendations related to major assets are as follows:
• Consider upgrading existing PLC45 Allen-Bradley CompactLogix processors and software for compatibility with new PLCs1.
• Further assess cracking in CMU walls, and seal cracks against water intrusion. • Apply exterior waterproofing to CMU structure.
• Provide anchorage for un-anchored or partially anchored skidded equipment. • Consider replacement of original (2010) instruments (including flow, level, and pressure elements), which are nearing the end of their useful lives1.

The following operations-based recommendations were identified for this process area:
• Evaluate increases to reliability of anionic polymer storage and feed system. • To improve access for operations and maintenance, consider modifying metering pumping systems to replace skid-mounting configurations with pedestal-mounted configurations. • Consider increasing capacity of hypochlorite and fluoride storage tanks to increase the minimum tank level prior to receiving new deliveries.

Process Area 17 – LOX Storage and Ozone Generation
The physical structures and assets in the LOX storage and ozone generation area are generally in fair condition, with asset and discipline-specific ratings ranging from good to poor condition. High-level recommendations related to major assets are as follows:
• Complete in-progress LOX and generation improvements project, including:
— Replacement of existing LOX fill station, storage tank, vaporizers, and adjacent piping — Replacement of existing power supply units and PLCs for all ozone generators — Replacement of selected gaseous oxygen and ozone gas isolation and control valves and actuators
— Installation of closed loop cooling water system for new power supply units No other condition- or operations-based recommendations were identified for this process area.

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Process Area 18 – Washwater Equalization Basins and Recycle Pump Station The physical structures and assets in the Washwater Equalization Basin and Recycle Pump Station area are generally in fair condition, with asset and discipline-specific ratings ranging from good to poor condition. The following operations-based recommendations were identified for this process area:
• Provide improved access to elevated Recycle Pump Station valves.

Process Area 19 – Sludge Clarifiers and Lagoons
The physical structures and assets in the sludge clarifier and sludge lagoon areas are generally in good condition, with asset and discipline-specific ratings ranging from good to fair condition. High-level recommendations related to major assets are as follows:
• Consider replacement of original (2010) instruments (including turbidimeters and level elements), which are nearing the end of their useful lives1. • Continue periodic coating repairs for carbon steel clarifier mechanisms. • Further investigate cracking in sludge clarifier(s) to determine if the cracking extends below the grout topping.

The following operations-based recommendations were identified for this process area:
• Replace Clarifier No. 2 drive unit to match direct drive on Clarifier No. 1. • Evaluate options for improved access to clarifiers (e.g., ladders). • Design and install provisions to convey sludge to Sludge Lagoon No. 3 (e.g., via pump station).

Process Area 20 – Operations Building
The physical structures and assets in the operations building area are generally in fair condition, with asset and discipline-specific ratings ranging from good to poor condition. High-level recommendations related to major assets are as follows:
• Consider replacement of original (1990) HVAC air handling units and heat pumps, which are nearing the end of their useful lives1.

The following operations-based recommendations were identified for this process area:
• Design and construct modifications to control room for improved utility (e.g., additional and/or moving workstations, standing desks, etc.).
• Design and implement modifications to power distribution and/or HVAC controls to address tripping issues.

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Process Area 21 – Blower Building / Zone 3 Pump Station The physical structures and assets in the Blower Building / Zone 3 Pump Station area are generally in good condition, with asset and discipline-specific ratings ranging from good to fair condition. High-level recommendations related to major assets are as follows:
• Consider upgrading existing PLC42 Allen-Bradley CompactLogix processors and software for compatibility with new PLCs1.
• Replace VFD for Zone 3 Pump No. 1, which has reached the end of its useful life. • Repair leak in roof above MCC room.
• Seal cracks in the CMU walls to prevent water intrusion. • Apply exterior waterproofing to the CMU walls.

No operations-based recommendations were identified for this process area.

Other / Plantwide
In addition to the process-specific observations and recommendations summarized above, several condition-related observations were made during the onsite assessments that pertain to the entire WTP more generally:
• Replace all end-of-life and discontinued PLC hardware. Where specific end-of-life or discontinued PLCs were observed during onsite condition assessment activities for this Master Plan, the relevant PLC(s) are mentioned among the process area summaries below.

Refer to the Waterman WTP “SCADA Cybersecurity Baseline Assessment and Recommendations” report (West Yost, October 2022) for additional details. • Design and construct means for automatic removal of accumulated water inside any susceptible chemical injection or electrical vaults throughout the WTP.

RISK ASSESSMENT
Critical asset condition, performance, and age information collected during the Waterman WTP site visits was used to populate the West Yost Asset Management Model (WAMM). The WAMM is a risk model used to prioritize system repairs and equipment replacement that considers both likelihood of failure (LOF) ratings and consequence of failure (COF) ratings to quantify the risks associated with each asset and each process area.

The risk assessment results presented in this section are consistent with the results presented in On-Site Condition Assessment section above. These results will be used as the basis for prioritization of capital improvements described in the Recommended Capital Improvements section later in this TM. (Note that capital improvement project costs and prioritization will be presented in Chapter 9 [Capital Improvement Program] of the Master Plan Report).

Key topics addressed in this section include:
• Asset Risk Methods
• Asset Risk Results
• Process Area Risk Methods
• Process Area Risk Results
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The methods used in this risk assessment are consistent with those developed in the City of Fairfield Potable Water Pump Station Asset Management Plan2. The general approach used in the risk assessment is illustrated on Figure 6. As indicated in the figure, the LOF of a process area is a function of the LOF results for the individual assets within that process area, as described in this section.

Figure 6. Waterman WTP Risk Assessment Methodology
Asset Risk Methods
This section describes the methods used to perform the LOF and COF analyses and to determine the resulting risk level for each individual asset at Waterman WTP.

Asset LOF
The LOF analysis considers the probability that a failure will occur in a given asset. The analysis includes two distinct “failure modes”, specifically Physical Mortality (i.e., outright physical asset failure) and Level of Service (i.e., the asset fails to meet its intended use). The factors considered in assessing each of these failure modes are presented in Table 9.
2 Originally published in 2015, and subsequently updated in April 2023.

Asset Risk
Asset LOF Asset COF
Process Area LOF Process Area COF
Process Area Risk
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Table 9. Criteria Used for Asset LOF Evaluation
Failure Mode Criteria/Factor Description
Physical Mortality
Percent of Useful
Life Remaining
This criterion considers the fact that older assets are more likely to fail than newer ones due to the age of
materials and wear from repeated use. The percent
of useful life remaining was determined by comparing
the number of remaining years estimated during the
field assessments to the industry standard lifetime for each asset
Condition Rating
An asset with visible degradation is more likely to fail.

While condition and age are often interdependent,
newer components may be in poor condition due to
environmental conditions or inadequate
maintenance. Condition ratings were assigned to
assets during the on-site condition assessment.

Level of Service Performance Rating
An asset that does not perform as designed or
intended is a level of service failure. Something does
not have to physical happen to the asset for level of
service failure to occur.

The performance of an individual asset may affect
the level of service of the process area, depending on
the role of that asset in day-to-day operations.

Performance ratings were assigned to assets
based on information obtained during the on-site
condition assessment.

The LOF factors above are translated into numeric rankings of 1 to 5, with 5 indicating the highest LOF score. An overall LOF score is determined by adding the higher of the two ratings for Percent of Useful Life Remaining and Condition Rating, and then adding that value to the ranking for Performance Rating.

As a result, each asset will have an overall LOF score of between 2 and 10. The factors and their range of potential ratings for each category are presented in detail in Table 10.

Table 10. Asset LOF Rating Factors
Failure Mode
Criteria/
Factor
Rating
1 2 3 4 5
Physical
Mortality
Percent of Useful
Life Remaining ≥ 70% 40% to 69% 10% to 39% 5% to 9% ≤ 5% Condition Rating Excellent Slight Visible
Degradation
Visible
Degradation
Integrity
Moderately
Compromised
Integrity
Severely
Compromised
Level of Service Performance Rating Functioning
as Intended
In Service, but
Higher than
Expected O&M
Costs
In Service, but
Function is
Impaired
In Service, but
Function is
Highly
Impaired
Not
Functioning as
Intended
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Asset COF
The COF analysis considers the impact that the failure of a given asset may have on the process area as a whole. For each category, the criteria considered in determining the potential consequence of a failure are presented in Table 11.

Table 11. Criteria Used for Asset COF Evaluation
Category Criteria/Factor Description
Operating
Ability
Functionality of
Process Area
This criterion considers the functionality of the process area if an asset fails.

Asset failure will have a varying degree of impact on the ability of the process area to operate depending on the role of the asset and the role and configuration of the process area. Asset failure may lead to reduced power efficiency, increased personnel hours, decreased ability to meet design criteria, or in certain cases, an inability of the process area to function at all.

Service
Reliability
Repair/ Replacement
Difficulty
Reliability of service decreases as the time and/or resources required to repair or replace an asset increase. An easy repair or replacement is defined as taking one person no more than one day to complete the task. A difficult repair or replacement would take more than one person and/or more than one day to complete. If the repair or replacement requires the process area or plant to be taken offline, even for a short amount of time, the service impact is greater still. If the asset is obsolete, it is assumed that a partial redesign of the process area, and/or programming of the controls, would need to occur.

The COF factors shown in Table 11 are translated into numeric rankings of 1 to 5, with 5 indicating the highest or worst consequence. Each asset is evaluated for the two factors shown in Table 11, with a resultant overall COF score of between 2 and 10. The factors and their range of potential ratings for each category are presented in detail in Table 12.

Asset Risk Results
By plotting the LOF and the COF scores against each other, an overall risk level was assigned to each asset.

Risk levels are prioritized into five risk levels: Low, Medium-Low, Medium, Medium-High, and High, each of which is color-coded in Table 13. These risk levels were assigned to the various cells using best engineering judgment to determine which combinations warrant the highest levels of concern versus those that warrant lesser levels of concern.

Table 12. Asset COF Rating Factors
Category
Criteria/
Factor
Rating
1 2 3 4 5
Operating
Ability
Functionality of
Process Area
(if asset fails)
Operates
Normally
Lack of
Redundancy/
Potential Reduced
Efficiency
Reduced
Efficiency
Reduced
Capacity/
Pressure
Cannot
Operate
Service
Reliability
Repair/
Replacement
Difficulty
Easy Difficult — Offline Obsolete
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Table 13 presents the total number of assets that fall into each LOF, COF, and risk level category. The asset risk assessment results are summarized in Table 14, which lists the total number and percentage of components that fall in each risk level. As shown in Table 14, the majority of the Waterman WTP assets (63 percent) fall into the Medium risk level. Detailed COF and LOF ratings for each Waterman WTP asset are presented in Appendix C of this TM.

Table 13. Waterman WTP Asset Risk Level Results
Number of
Assets
COF Score
2 3 4 5 6 7 8 9 10 Total
LOF Score
2 0 0 0 0 0 0 0 0 0 0
3 0 0 0 0 0 0 0 0 0 0
4 5 66 66 20 13 1 0 12 5 183
5 12 48 24 2 4 1 1 7 12 99
6 22 69 94 84 14 5 8 28 22 324
7 119 13 111 2 4 2 5 12 119 268
8 0 1 34 0 5 12 1 1 0 54
9 0 0 0 1 1 5 0 0 0 7
10 0 0 0 0 0 0 0 1 0 1
Total 158 197 329 109 41 26 15 61 0 936
Risk Levels Low Medium-Low Medium Medium-High High
Table 14. Summary of Waterman WTP Asset Risk Assessment Results Risk Level No. of Assets Percent of Total
Low 0 0%
Medium-Low 239 25.5%
Medium 586 62.6%
Medium-High 91 9.7%
High 20 2.1%
Total 936 100%
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Process Area Risk Methods
The risk for each process was evaluated based on the COF of the process area, as well as the combined LOF scores of the assets within each process area, as described below.

Process Area LOF
The LOF for each process area was evaluated using the LOF scores of individual assets within each process area, which were then weighted by their respective monetary value. An asset value weight was assigned to each asset based on its nominal estimated monetary value, as shown in Table 15. This value weighting considers that assets of a higher value or importance (e.g., an ozone generator) will have a greater impact on overall process area LOF than assets of lower value or importance (e.g., a field instrument or sump pump).

Overall process area LOF scores were determined by first weighting the LOF scores of each individual asset using the weighting factors shown in Table 15. The resulting weighted LOF scores for each asset were then added together and divided by the sum of the weighting factors. This algorithm produces an overall LOF score between 2 and 10 for the given process area, in a manner similar to the LOF scoring for the individual assets.

Table 15. Asset Value Weight
Asset Nominal Monetary Value Asset Value Weight
<$25,000 0.3
$25,000-$250,000 0.7
>$250,000 1
Process Area COF
The COF of a given process area considers the impacts to the Waterman WTP should a process area fail.

COF factors for each process area were derived in a manner similar to that of the COF factors for individual assets comprising that process, as presented in Table 11 above. Similar to the COF scoring for assets, process area COF is rated on a 2 to 10 scale.

Process Area Risk Results
Figure 7 shows the percentage of assets in each process area that fall within each risk level prior to weighting (as represented by the colored bars). This presentation of asset risk distribution within each process area provides a comparison between process areas.

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Figure 7. Risk Levels of Assets by Process Area, Percent of Total Table 16 presents LOF score, COF score, risk score, and risk level for each process area, ranked from highest to lowest risk. These results will provide the basis for prioritizing the capital improvements. 0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Percent of Total Number of Assets in Risk Level Per Process Area High Med-High Medium Med-Low Low
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Table 16. Summary of Waterman WTP Process Area Risk Assessment Results Process Area
LOF Score
(value-weighted)a COF Score
Risk Score
(weighted)
Risk Level
(Priority)
14-Filters 6.5 7 45.5 Med-High
15-HLPS 6.4 7 44.8 Med-High
16-Chemicals 6.1 7 42.7 Med-High
11-Intake / LLPS 5.8 7 40.6 Med-High
60-Other-ELECT / CONTROLS 6.4 6 38.4 Medium
18-EQ Basin + WW PS 5.4 7 37.8 Medium
20-Operations Bldg 6.2 6 37.2 Medium
12-Pretreatment 4.9 7 34.3 Medium
19-Sludge Clarifiers and Lagoons 4.9 7 34.3 Medium
21-Blowers / Z3PS 4.9 7 34.3 Medium
17-Ozone Generation 6.3 5 31.5 Medium
13-Ozone Contact + ICA 5.5 5 27.5 Medium
00-Misc Systems 6.1 4 24.4 Medium
(a) value weighting considers that assets of a higher value or importance will have a greater impact on overall process area LOF than assets of lower value or importance .

CAPACITY REHABILITATION RECOMMENDATIONS
In recognition of the Waterman WTP current reliable treatment capacity of approximately 25 mgd, as described earlier in this TM, efforts are necessary to rehabilitate, replace, or expand existing facilities and processes, as appropriate, to bring the current maximum reliable treatment capacity of the plant back up to 30 mgd. This section describes recommended improvements to the filtration system to achieve this goal.

The filters at the Waterman WTP present the most significant obstacle to the ability of the plant to achieve production rates above approximately 25 mgd. With a current total of ten filters, each with a surface area of about 430 square feet and a reliable loading rate of about 4.5 gallons per minute per square foot (gpm/ft2), the Waterman WTP can only produce 32 mgd with one filter offline3. According to operations staff, headloss across the filters increases noticeably when they are loaded at rates greater than about

4.5 gpm/ft2, which tends to decrease filter runtimes, increase filter backwashing frequency, and generally stress the washwater recovery system. To produce 30 mgd with a single filter offline, the Waterman WTP would need to sustain a filter loading rate of about 5.4 gpm/ft2.

One approach to improving the production capacity of the filtration process to ensure that 30 mgd can be reliably produced by the Waterman WTP would be to construct two additional filters with the same surface area as the existing filters, for a total of 12 filters. At a loading rate of 4.4 gpm/ft2 and single filter offline, such an expanded filtration system would produce up to 30 mgd while maintaining typical filter runtimes.

Although this approach would help achieve the necessary capacity rehabilitation, it would be costly. 3 According to NBRWTP operations staff, filter loading rates up to 4.5 gpm/ft2 typically result in stable filter operation
and filter runtimes of approximately 60 hours.

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It is possible, however, that a lower cost approach would yield similar benefits. A filtration optimization study, consisting of a focused evaluation of the existing filters and the ability of their supporting processes to handle more challenging water quality at higher filter loading rates may result in the identification of lower-cost improvements than the construction of two new filters. Such an optimization study may include some combination of the following:
• Bench- and pilot-scale evaluation of pre-filter conditioning chemicals and doses to optimize the types, doses, and application locations for coagulants and filter aid polymers. • Rapid small-scale column tests to assess filter performance in response to a variety of factors and potential modifications, including filter media types and configurations, filter loading rates, pre-treatment chemical selections and doses, and backwashing and/or filter-to-waste procedures.
• Plant-scale testing of approaches deemed favorable during bench- and pilot-scale testing.

To maximize the potential for cost-effective filter operation at loading rates approaching 6 gpm/ft2, it is recommended that Fairfield conduct a filter optimization study prior to and potentially in lieu of electing to construct additional filters. Even if Fairfield ultimately determines that constructing one or more additional filters is the preferred approach to reliably treating up to 30 mgd, it is likely that the results of the filter optimization study will yield valuable insights into the design and construction of the new filters, and into the operation of the overall, expanded filtration facility. Even if the outcome of the optimization study is to change the type and/or configuration of filter media, a full-scale replacement of the media in all existing filters is likely to represent a fraction of the cost to construct one or more new filters.

PLANT EXPANSION ELEMENTS
The need to consider capacity expansion at the Waterman WTP must be coordinated with any expansion plans for the NBRWTP. As described in the NBRWTP TM, several advantages exist to focusing water treatment expansion efforts at the NBRWTP rather than at the Waterman WTP. Nevertheless, for purposes of this analysis, some consideration is given to potential expansion of the Waterman WTP facilities to 45 mgd, as determined in consultation with Fairfield staff.

To achieve an expansion of the Waterman WTP to 45 mgd, a variety of treatment facility additions and modifications would be required. Based on reviews of existing facility design criteria, as well as application of typical design criteria for new or modified processes, conceptual-level requirements for each of the major facilities and process areas are summarized below. Conceptual-level hydraulic improvements associated with the expansion scenarios are discussed later in this TM. Figure 8 provides a conceptual depiction of the footprint and potential location of the new or modified facilities under the expansion to 45 mgd capacity.

Due to the relative unlikelihood that the Waterman WTP undergoes an expansion, the analysis summarized below takes a somewhat higher-level view than a similar discussion presented separately for the NBRWTP, and does not address capacities for certain ancillary equipment items (e.g., ozone destruct units, individual chemical metering pumps, etc.). Ancillary systems should be evaluated in greater detail if the City ultimately elects to significantly expand the Waterman WTP.

N:\Clients\268 Fairfield\60-22-20 Water Master Plan\CAD\Figures\Waterman Overall Site 45 MGD.dwg 9/28/2023 11:34 AMovegvary N
Approximate Footprint
of New Facility Required
for Expansion to 45 MGD LEGEND City of Fairfield Waterman Water Treatment Plant Site Plan 45 MGD Figure 8 Water Master Plan TM – City of Fairfield
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Raw Water Diversion
Design criteria for the existing PSC intake screens could not be located among the record drawings for the plant, either in the original 1974 drawings or the 2010 plant improvement project drawings. Fairfield should investigate available submittal documentation from past construction projects to determine the maximum flow rate for each screen. In the event the Waterman WTP is expanded and the existing intake screening firm capacity is less than 45 mgd, the intake screens would either need to be replaced with larger capacity units, or the intake itself would need to be enlarged to accommodate an additional screen.

Low Lift Pump Station
The existing LLPS features two 7.5-mgd pumps and two 15-mgd pumps, which provide total and firm capacities of 45 and 30 mgd; respectively. If the WTP were to expand to 45 mgd, one or more of the pumps would need to be replaced with a larger capacity unit to ensure a firm capacity of 45 mgd. The scope of expansion-related modifications to this facility would be influenced by any nearer-term plans to optimize pump sizing for current treated water production ranges.

Pretreatment
Each of the existing Actiflo trains was designed to handle up to 22.5 mgd. As such the pretreatment system has adequate capacity to accommodate a Waterman WTP production rate of up to 45 mgd without significant changes.

Intermediate Ozonation
The existing ozone contactors provide 8.1 minutes of hydraulic detention time at a flow of 30 mgd, well over the recommended criterion of 5 minutes. At 45 mgd, the detention time would drop to 5.4 minutes but remain above the criterion. As such, significant changes to the ozone contactors would not be required to achieve a flow of 45 mgd.

In addition, ozone ancillary systems have adequate capacity to accommodate 45 mgd. However, to provide ozone generation redundancy, an additional ozone generator would be recommended for this scenario.

Filtration
The existing filtration system consists of ten filters that were originally designed for a filtration rate of up to 6.0 gpm/ft2 Although the Waterman WTP has historically had difficulty maintaining its desired filter runtime of 60 hours when the filtration rate exceeds approximately 4.5 gpm/ft2, it is standard practice to design new granular media filters to operate reliably at filtration rates between 5 and 6 gpm/ft2.

If the Waterman WTP were to expand to 45 mgd, and the filters were able to operate reliably at filtration rates between 5 and 6 gpm/ft2, a minimum of four new filters would be required. With one filter offline, this configuration would result in a filtration rate of 5.6 gpm/ft2 at 45 mgd. In practice, achieving flow rates greater than 4.5 gpm/ft2 will likely require Fairfield to first conduct a filter optimization study, as described previously.

Chlorine Contact
To provide adequate CT at a flow rate of 45 mgd, a new chlorine contact basin would be required to supplement the CT available through the HLPS wet well, the Waterman reservoir, and the distribution system upstream of the first customer(s). Assuming a T10/T ratio of at least 0.7, a plug flow contactor with a volume of approximately 760,000 gallons would provide adequate contact time.

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High Lift Pump Station
Following completion of the planned HLPS upgrade project in 2024, the HLPS firm capacity will be 30 mgd.

If the WTP were to expand to 45 mgd, one or more of the pumps would need to be replaced with a larger capacity unit to ensure a firm capacity of 45 mgd.

Washwater Equalization
To accommodate a greater frequency of backwashes associated with a flow rate of 45 mgd, one new backwash equalization basin equal in size to the existing basins will be required.

Solids Handling
The existing sludge clarifiers are conservatively sized for the existing maximum flow of 30 mgd, and have adequate capacity to accommodate a production rate of up to 45 mgd. However, Sludge Lagoon No. 3 would need to be brought online for this scenario.

Chemical Storage
The existing chemical storage tanks were design to provide 30 days of storage for chemicals at average doses and the existing design flow rate of 30 mgd. With respect to average annual production rates, the existing storage volumes are conservative, and may remain adequate (i.e., greater than 30 days of storage at average chemical doses and at average annual flow rates) if the Waterman WTP expands to 45 mgd.

The City would need to evaluate anticipated average annual demands following an expansion to 45 mgd to determine if any individual chemicals required additional storage volume.

Electrical Service
Increasing the capacity of the Waterman WTP to 45 mgd would almost certainly require a new electrical service from PG&E, as the WTP’s service size following completion of the planned HLPS upgrade project (4,000 amps) is the largest size that PG&E offers.

HYDRAULIC CAPACITY EVALUATION
The hydraulic capacity of the Waterman WTP is affected by the sizes of pipelines, flumes, weirs, and other hydraulic structures. As flows increase, the head losses through each unit process also increase, resulting in higher water surface levels. Maximum allowable flows are those that can be safely contained (i.e., that do not create overflows or unacceptable operating conditions). Development of a hydraulic model and accompanying hydraulic profile schematics facilitates the identification of the acceptable hydraulic capacity of individual unit processes and the Waterman WTP as a whole.

The hydraulic capacity evaluation presented in this TM includes the following elements:
• Hydraulic Profile Development
• Hydraulic Capacity Evaluation Results
Hydraulic Profile Development
A spreadsheet hydraulic model was developed for the Waterman WTP. The hydraulic model follows a downstream-to-upstream convention. The boundary condition (i.e., water surface elevation) at the HLPS is the starting point for the model. Head losses from sequential upstream processes are added to the downstream boundary conditions to develop the hydraulic profile.

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Inputs for the hydraulic profile are based on available data and various assumptions. Record drawings from the 2010 construction project were used as the basis for the types, dimensions and elevations of pipelines, fittings, channels, weirs, flumes, and other related hydraulic features of the Waterman WTP. In addition, typical hydraulic performance data from similar facilities or equipment manufacturers are used where hydraulic calculations cannot be readily applied to determine head losses (e.g., losses across granular filter media and underdrains, bar screens, etc.). Estimates of typical hydraulic parameters for pipelines, fittings, and structures (i.e., friction and minor loss coefficients) have been made based on standard industry practice.

The assumed numbers of units in service, as well as the recycle flow assumptions, for each of the scenarios developed in the hydraulic model are presented in Table 17. For recycle flow rates, the hydraulic calculations are based on maximum instantaneous rates. For processes in which more than one unit currently exists, the hydraulic calculations are based on the unit with the greatest head losses resulting from its configuration or location.

Table 17. Summary of Modeled Hydraulic Profile Scenarios Scenario
PSC Raw
Water Flow,
mgd
Return Flow,
mgd Actiflo Basins
Ozonation
Basins Online Filters
Filtration
Rate,
gpm/ft2
1 30 3 2 4 9 5.4
2 30 3 1 4 9 5.4
3 45 4.5 2 4 13 5.6
Hydraulic Capacity Evaluation Results
The hydraulic profile for the existing Waterman WTP is shown on Figure 9 for a flow of 30 mgd, which provides a useful starting point for the analysis of future expansion needs.

In general, modeled results for the 30 mgd scenario agree well with the hydraulic profile included in the 2010 record drawings4. Notable exceptions to this observation are as follows:
• Modeled results at the ICA Vault indicate a hydraulic grade elevation approximately 1 foot higher than the 2010 hydraulic profile. This discrepancy may be due to the fact that the 2010 profile appears to represent the entirety of the piping between the ICA Vault and the filters as 48 inches, despite the fact the record drawings show a 36-inch pipe leaving the ICA Vault. In the modeled results, the segment of 36-inch piping contributes about 1.4 feet of head loss, whereas the same segment of 48-inch piping would contribute about 0.5 foot of head loss at 30 mgd.
4 The record drawings state that the listed water surface elevations are based on only one Actiflo basin being in service. For the comparison of the profile developed for this Master Plan with the 2010 profile, this same approach was taken.

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• Modeled results in the 36- and 42-inch segments of piping between flash mix and the Actiflo basins gradually diverge, with the modeled results at flash mix showing a hydraulic grade elevation approximately 2 feet higher than the 2010 hydraulic profile. Significant sources of modeled head loss along this run of piping that are not explicitly depicted in the 2010 profile include two tee fittings (between Actiflo and the flow meter, and between the flow meter and flash mix), and a 36-inch butterfly valve between the flow meter and flash mix.

Together, these fittings produce about 1.9 feet of head loss at 30 mgd.

With respect to a Waterman WTP expansion to up to 45 mgd, a variety of new large-diameter pipes would be required to convey flows from one process area to the next, as shown below:
• Between the new chlorine contact basin and the existing HLPS (approximately 600 feet of 60-inch diameter piping)
• Between the existing ozone contactors / ICA Vault area and the expanded filter area (approximately 300 feet of 60-inch diameter piping)
• Between the existing pretreatment trains and the existing LLPS (approximately 150 feet of 48-inch diameter piping)
• Between the existing LLPS and the existing PSC intake (approximately 150 feet of parallel 42-inch diameter piping)
Detailed modeling of these pipelines is beyond the scope of the analysis presented in this TM, and would instead need to be completed as part of preliminary design efforts for the expanded Waterman WTP, if such an expansion was determined necessary in the future.

RECOMMENDED CAPITAL IMPROVEMENTS
This section presents recommended capital improvements based on the evaluations and assessments summarized previously in this TM. Recommendations presented herein are organized as follows:
• Condition-based improvements
• Performance and operations-based improvements
• Hydraulic capacity-based improvements
• Expansion-based improvements
Proposed phasing and estimated costs for the improvement recommendations will be presented in Chapter 9 of the Master Plan.

Condition-Based Improvements
Condition-based improvement recommendations are summarized by process area in Table 18. 115 110 105 1009590 120 125 130 135 140 115 110 105 100 9590120 125 130 135 140 OZONATION INTERMEDIATE CHEMICAL ADDITION VAULT FILTER HIGH-LIFT PUMP STATION COAGULATION/SEDIMENTATION (ACT/FLO) FLOW METER FLASH MIX LOW LIFT PUMP STATION ROTATING DRUM SCREEN PUTAH SOUTH CANAL WEIR EL. 129.18 WEIR EL. 128.48 WS EL. 132.2 WS EL. 136.0 WS EL. 140.6 WS EL. 136.5 WS EL. 130.8 OF WEIR EL. 131.09 WS EL. 129.4 WEIR EL. 128.8 WS EL. 128.7 WEIR CREST EL. 128.2 WS EL. 127.6 WEIR CREST EL. 125.0 WS EL. 125.4 WS EL. 125.2 OF WEIR EL. 123.25 WS EL. 122.8 WEIR CREST EL. 122.3 WS EL. 121.8 2-36" RW 48" FILTER INFLUENT 42" RW 48" FI 36" PW/WW 24" WW 48" FILTERED WATER WEIR CREST EL. 110.0 16" FILTER EFFLUENT 16" FILTER INFLUENT 24" WASTE WASHWATER TO WATERMAN RESERVOIR AND DISTRIBUTION SYSTEM 18" FILTER BACKWASH FROM WATERMAIN RESERVOIR 42" RAW WATER 42" x 36" REDUCER 36" RW 42" RW 42" SW WS WL. 112.5 WS EL. 111.5 36" PO 12" SL 8" RE 12" RE 12" RE 36" RE WS EL. 102.0 NORMAL WS EL. 102.5 TOP OF HIGH-LIFT PUMP STATION EL. 121.95 TOP OF FILTERS EL. 126.5 TROUGH CREST EL. 119.5 TOP OF STRUCTURE EL. 127.3 TOP OF STRUCTURE EL. 133.5 TOP OF STRUCTURE EL. 135.37 TO/FROM RESIDUALS HANDLING FACILITIES (NOT SHOWN) TO RESIDUALS HANDLING FACILITIES (NOT SHOWN) N:\Clients\268 Fairfield\60-22-20 Water Master Plan\CAD\Figures\26860-2220-Hydraulic Profile.dwg 9/28/2023 2:05 PMovegvary City of Fairfield Waterman WTP Schematic Plant Hydraulic Profile at 30 MGD Figure 9 Water Master Plan Notes: 1. FLOW THROUGH COAGULATION/SEGMENTATION BASINS IS BASED ON 30MGD PASSING THROUGH 1 TRAIN ONLY.

TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Table 18. Summary of Condition-Based Capital Improvement Recommendations Process Area Recommended Improvement
11 – PSC Intake and Low Lift
Pump Station
• Replace existing PLC 41
• Recoat corroded metallic surfaces at PSC intake (e.g., equipment supports, drum screen shrouds)
• Replace original (1974) drum screen no. 2 at PSC intake(a) • Replace original (1974) washwater pumps at PSC intake(a) • Replace VFDs for LLPS pumps
• Replace original (1974) pump discharge valves at LLPS(a) • Replace LLPS pressure switches and level indicator
• Replace original (1985) LLPS pumps(a)
12 – Pretreatment • Replace existing PLC 51
• Conduct additional evaluation of Flash Mix Pump No. 2 to diagnose cause of vibration
• Repair or replace Actiflo effluent channel sluice gate seal(s) 13 – Ozone Contact and
Intermediate Chemical
Addition
• Conduct Tier 2 or Tier 3 seismic risk assessments to investigate cracking in the ozone contactors
• Modify ozone contactor access hatches to mitigate stripped threads • Replace original (1990) inlet and outlet valves for Ozone Contactors Nos. 3 and 4(a)
• Repair or replace utility crane on west side of contactors • Replace original MCC 2M1
• Replace original (1974) inlet and outlet gates at intermediate chemical addition(a)
14 – Filters • Upgrade existing PLC Allen-Bradley CompactLogix processors and software(a)
• Replace existing motorized valve actuators(a)
• Replace particle counters, and differential pressure transmitters • Further assess and seal concrete cracking between Filters 6 and 8, and in filter top slab near wall intersections
• Replace original (1974) filtered water isolation valves (a) 15 – High Lift Pump Station and
Bridge Vault
• Complete planned HLPS improvements project
• Replace bridge vault hatch doors with material suitable for continuous moisture exposure
• Replace original (1974 and/or 1985) valves and remaining original actuators in bridge vault(a)
16 – Chemicals • Upgrade existing PLC45 Allen-Bradley CompactLogix processor and software(a)
• Further assess cracking in CMU walls, and seal cracks against water intrusion
• Apply exterior waterproofing to CMU structure
• Provide anchorage for un-anchored or partially anchored skidded equipment
• Replace original (2010) flow, level, and pressure instruments TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Table 18. Summary of Condition-Based Capital Improvement Recommendations Process Area Recommended Improvement
17 – LOX Storage and Ozone
Generation
• Complete in-progress LOX and generation improvements project 18 – Washwater Equalization
Basins and Recycle Pump
Station
None
19 – Sludge Clarifiers and
Lagoons
• Replace original (2010) turbidimeters and level instruments • Continue periodic coating repairs for carbon steel clarifier mechanisms • Further investigate cracking in sludge clarifier(s) to determine if the cracking extends below the grout topping
20 – Operations Building • Replace original (1990) HVAC air handling units and heat pumps(a) 21 – Blower Building / Zone 3
Pump Station
• Upgrade existing PLC42 Allen-Bradley CompactLogix processor and software(a)
• Replace VFD for Zone 3 Pump No. 1
• Repair leak in roof above MCC room
• Seal cracks in the CMU walls to prevent water intrusion • Apply exterior waterproofing to the CMU walls
Other / Plantwide • Replace all “active mature” and end-of-life PLC hardware not captured above. Refer to the Waterman WTP “SCADA Cybersecurity Baseline Assessment & Recommendations” report (West Yost, October 2022) for additional details
• Design and construct means for automatic removal of accumulated water inside susceptible chemical injection or electrical vaults throughout the WTP
(a) Replacement is recommended during next major process area expansion or modification; in the interim, increase inspection and maintenance frequencies.

Performance and Operations-Based Improvements
Performance- and operations-based improvement recommendations are summarized by process area in Table 19.

Table 19. Summary of Performance- and Operations-Based Capital Improvement Recommendations Process Area Recommended Improvement
11 – PSC Intake and Low Lift
Pump Station
• Relocate and reconfigure raw water sample pumps and instruments (i.e., those currently located beneath the bridge crossing upstream of the PSC intake) for improved O&M
• Install gates or other mechanism to individually isolate intake screens • Install coarse screening system for PSC intake washwater pumps • Conduct a detailed evaluation of LLPS operations to identify optimal replacement pump sizing
• Modify CO2 injection system to avoid gas buildup / air binding in LLPS discharge header
TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Table 19. Summary of Performance- and Operations-Based Capital Improvement Recommendations Process Area Recommended Improvement
12 – Pretreatment • Design and install improved system for safely accessing Actiflo basin floor areas
13 – Ozone Contact and
Intermediate Chemical
Addition
• Provide davit crane inserts for contactor confined space entry • Evaluate modifications to ozone residual analyzers to mitigate impact of polymer carryover from Actiflo
• Design and install method for quenching ozone residual to 1) eliminate detectable ambient ozone at ICA vault, and 2) mitigate potential impact on filter aid polymer dose
14 – Filters • Conduct filter optimization study to identify and evaluate opportunities to improve filter performance at loading rates higher than approximately 4.5 gpm/ft2
• Relocate filtered water sample pump configuration to allow for increased chemical dispersion and mixing prior to sampling 15 – High Lift Pump Station and
Bridge Vault
• Relocate Bridge Vault instrumentation to new above-grade housing, for improved access and better equipment protection
16 – Chemicals • Evaluate increases to reliability of anionic polymer storage and feed system • To improve access for operations and maintenance, consider modifying metering pumping systems to replace skid-mounting configurations with pedestal-mounted configurations
• Consider increasing capacity of hypochlorite and fluoride storage tanks to increase the minimum tank level prior to receiving new deliveries 17 – LOX Storage and Ozone
Generation • None identified
18 – Washwater Equalization
Basins and Recycle Pump
Station
• Provide improved access to elevated recycle pump station valves. 19 – Sludge Clarifiers and
Lagoons
• Replace Clarifier No. 2 drive unit to match direct drive on Clarifier No. 1 • Evaluate options for improved access to clarifiers (e.g., ladders) • Design and install provisions to convey sludge to Lagoon No. 3 (e.g., via pump station)
20 – Operations Building • Design and construct modifications to control room for improved utility (e.g., additional and/or moving workstations, standing desks, etc.) • Design and implement modifications to power distribution and/or HVAC controls to address tripping issues
21 – Blower Building / Zone 3
Pump Station • None identified
TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Capacity Rehabilitation Improvements
Capacity rehabilitation improvement recommendations are summarized by process area in Table 20.

Table 20. Summary of Capacity Rehabilitation Capital Improvement Recommendations Process Area Recommended Improvement
11 – PSC Intake and Low Lift
Pump Station
• None identified
12 - Pretreatment • None identified
13 – Ozone Contact and
Intermediate Chemical
Addition
• None identified
14 – Filters • Conduct Filter Optimization Study
15 – High Lift Pump Station and
Bridge Vault
• None identified
16 – Chemicals • None identified
17 – LOX Storage and Ozone
Generation
• None identified
18 – Washwater Equalization
Basins and Recycle Pump
Station
• None identified
19 – Sludge Clarifiers and
Lagoons
• None identified
20 – Operations Building • None identified
21 – Blower Building / Zone 3
Pump Station
• None identified
Other • None identified
Expansion-Based Improvements
Expansion-based improvements refer to those improvements that are required for the overall expansion of the Waterman WTP treatment and hydraulic capacity but which are not otherwise identified as condition- or performance -related improvements. Expansion-based improvement recommendations are summarized by process area in Table 21, assuming a future Waterman WTP capacity of 45 mgd.

TM – City of Fairfield
May 24, 2024

N-C-268-60-22-20-WP-R-WMP-TM2
Table 21. Summary of Expansion-Based Capital Improvement Recommendations Process Area Recommended Improvement
11 – PSC Intake and Low Lift
Pump Station
• Replace existing low lift pumps with larger pumps
• Construct new yard piping between the existing LLPS and the existing PSC intake (approximately 150 feet of parallel 42-inch diameter piping) • Construct new yard piping between the existing pretreatment trains and the existing LLPS (approximately 150 feet of 48-inch diameter piping) 12 – Pretreatment • None identified
13 – Ozone Contact and
Intermediate Chemical
Addition
• Construct new yard piping between the existing ozone contactors / ICA vault area and the expanded filter area (approximately 300 feet of 60-inch diameter piping)
14 – Filters • Construct at least four new dual media filters 15 – High Lift Pump Station and
Bridge Vault
• Construct new 760,000-gallon chlorine contact basin upstream of HLPS • Construct new yard piping between the new chlorine contact basin and the existing HLPS (approximately 600 feet of 60-inch diameter piping) • Replace high lift pumps with larger pumps
16 – Chemicals • None identified
17 – LOX Storage and Ozone
Generation
• Install fourth ozone generator or replace one or more generators with larger generator(s)
18 – Washwater Equalization
Basins and Recycle Pump
Station
• Construct one new backwash equalization basin
19 – Sludge Clarifiers and
Lagoons
• None identified
20 – Operations Building • None identified
21 – Blower Building / Zone 3
Pump Station
• None identified
Other • Obtain additional utility service from PG&E
Condition Assessment of Waterman Water Treatment
Plant, ASTM E2026, ASCE/SEI 41,
and FEMA P-154
Appendix A
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Technical Memorandum
To: Andy Smith, West Yost
From: Ronald Migdal, S.E.

Project Name: City of Fairfield Water Utility Master Plan and Rates Study, City of Fairfield, California
Project Number: 122084
Subject: Condition Assessment of Waterman Water Treatment Plant, ASTM E2026, ASCE/SEI 41, and FEMA P-154
File to: 122084 – 6.03
Date: June 23, 2023

1. INTRODUCTION
TJC and Associates, Inc. (TJCAA) performed a condition assessment and seismic risk assessment of the City of Fairfield (City) Waterman Water Treatment Plant (Plant).

This technical memorandum presents our observations and findings.

Our review was limited to the areas of the facilities that were visible and accessible.

TJCAA conducted a seismic risk assessment in accordance with the Standard Guide for Seismic Risk Assessment of Buildings (ASTM E2026), Seismic Evaluation and Retrofit of Existing Buildings (ASCE/SEI 41), and Rapid Visual Screening of Buildings for Potential Seismic Hazards (FEMA P-154).

The procedure adopted by TJCAA follows the guidelines presented in ASTM E2026, with the addition of a Tier 1 Screening per ASCE/SEI 41 and application of FEMA P154 methods for determining a probability of collapse for the structure. The Plant was evaluated relative to the “Immediate Occupancy” structural performance level, which is defined as a post-earthquake damage state in which the facility remains safe to access and essentially retains its pre-earthquake strength and stiffness if subjected to forces associated with the Maximum Considered Earthquake.

The ASCE/SEI 41 Tier 1 procedure is a preliminary screening tool designed to quickly identify potential seismic deficiencies in the structural lateral force-resisting system and non-structural building systems. The Tier 1 evaluation procedure uses a series of checklists for rapid evaluation of the building while requiring only a minimum level of structural calculations.

On April 10, 2023, Terence Cavanagh, S.E. and Ronald Migdal, S.E. conducted a walk-through of the Plant. They performed visual inspection of structural systems at accessible locations. TJCAA reviewed the drawings listed below. • Record drawings: Expansion and Modernization (MWH, August 2010). This set includes the following:
o Drawings prepared previously (James M. Montgomery, Consulting Engineers, various dates)
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o Original construction documents (February 25, 1974)
o Expansion drawings dated April 25, 1988
o Plant Modification drawings dated March 5, 1990.
• Record drawings: Improvement Projects (MWH, November 2010) • Expansion Drawings (James M. Montgomery, Consulting Engineers, May 29, 1985)
Analysis of structural elements, if performed, was limited to the “Quick Check” method of ASCE/SEI 41. The following structures (listed with building number) were inspected during the assessment:

Waterman Water Treatment Plant – Info provided by WY
Building
Number
Process Area/
Facility
Original
Construction/
Install Year
Upgrade Year(s)
Average Age of
Structure and
Equipment
11 Putah South Canal Intake
Structure 1977 • N/A Structure: 48
Low Lift Pump Station
(no building) 1977
• 2010 (Electrical
Building) Structure: 48
Nearby Concrete Masonry
Unit (CMU) Building 2010 • N/A Structure: 12
12 Flash Mix 2010 • N/A Equipment: 12
Actiflo Basins 2010 • N/A Structure: 12
13 Ozone Contact and
Intermediate Chemical
Addition
1990
(Basins 3–4)
• 2010
(Basins 1–2) Structure: 12–32
14 Filters 1977
(Filters 1–4)
• 1985 (Filters 5–6)
• 2010
• (Filters 7–10, Control
Building
• FTW PS)
Structure:12–48
CMU Building 2010 • N/A Structure: 12
15 High Lift Pump Station /
Treated Water Distribution
1977
(Pumps 1–3) • 2010 (Cover) Structure: 12-48
16 Chemical Storage Facility 1977 • 2010 (All New) Structure: 12 17 Ozone Generation, Liquid
Oxygen (LOX) and Carbon
Dioxide (CO2)
1990 Structure: 32
18 Equalization Basins and
Pump Station 2010 • N/A Structure: 12
19 Sludge Clarifiers (2) 2010 • N/A Structure: 12
20 Operations Building 1990 • 2010 (Remodel) Structure: 32 21 Blower Building / Zone 3
Pump Station 2010 • N/A Structure: 12
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1.1 Definitions
Active Fault – A fault with an average historic slip rate of at least 1 millimeter per year and geological evidence of seismic activity within the Holocene time, i.e., during the last 11,000 years.

Earthquake – Ground shaking caused by a sudden movement along a fault line.

Fault – Fracture or crack along which two blocks of rock slide past one another.

Magnitude – A number that represents the size of an earthquake at the source, as determined by seismographic observations. Although outdated, the Richter Scale is probably the best-known earthquake magnitude scale.

Maximum Considered Earthquake (MCE) – Used by Building Codes to define the maximum considered seismic event. For the structures considered in this report, the MCE has a 2% probability of exceedance within a 50-year period. The MCE is the event considered to be applicable to building code design and is based on probabilistic methods.

Seismic Coefficient – Spectral response acceleration parameters for short periods (SS) and 1-second period (S1), adjusted for Site Class, provided by United States Geological Survey (USGS).

Seismic Hazard – The potential for damaging effects caused by an earthquake. The degree of damage is a function of magnitude, distance from the epicenter, type of subsurface soils, and duration of shaking. The seismic hazard selected for this assessment is BSE-1E, which corresponds to spectral response accelerations for an earthquake with a 20% probability of exceedance within a 50-year period. These accelerations are lower than the MCE.

Seismic Risk – The probability of damage, loss, or injury resulting from an earthquake.

Site Class – A classification assigned to a site based on the types of soil present and their engineering properties (ASCE 7).

1.2 Limitations
Due to the absence of geotechnical information for the Plant site, we are unable to form opinions or make recommendations on such hazards as fault rupture, liquefaction, and seismic settlement. We will provide only basic information on these topics.

2. ASSESSMENT (ASTM E2026)

2.3 Seismic Ground Motion Hazard Assessment – Level G1 Investigation ASTM E2026, Section 7 states the following:
“The objective of the seismic ground motion hazard assessment is to characterize the earthquake ground motions at the site with a specified probability of being exceeded in a given time period.” Fault and Seismic Sources – The Plant is in a seismically active area of Northern California. Based on a review of the California Earthquake Hazards Zone Application (EQ Zapp, California Department of Conservation), the known significant active faults and seismic sources within 25 miles of the site include the Cordelia (4 miles), Green Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
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Valley (5 miles), West Napa (12 miles), Concord (16 miles), and Rodgers Creek (22 miles) Faults.

2.3.1 Finding – Seismic Ground Motion Hazard Assessment According to the USGS, the Short Period (SS) and 1-second Period (S1) Site-Specific Spectral Response Accelerations for the Plant are 1.667g and 0.585g, respectively.

2.4 Building Stability Assessment – Level BS1-1E Investigation ASCE/SEI 41 states the following:
“The objective of the building stability assessment is to determine if the building can be reasonably expected to remain stable under earthquake loadings. A building should be deemed stable if it is able to maintain the vertical load-carrying capacity of its structural system under the inelastic deformations caused by the earthquake ground motion prescribed for the building and site by the California Building Code.”
The Plant is at 2900 Vista Grande, in Fairfield, California (Latitude 38.2736°N, Longitude 122.0684°W). The Plant was originally constructed in 1977 and its structural elements were designed for the lateral force provisions of the 1973 Uniform Building Code. The Plant consists of several above-grade structures of varying structural systems, with below-grade cast-in-place concrete basins and vaults.

TJCAA performed a Tier 1 screening of a portion of the facility, applying the appropriate checklist in ASCE/SEI 41 depending on the classification of the structure being assessed.

From observed earthquake damage, it can be inferred that certain structures designed and constructed in accordance with the 1994 Uniform Building Code (or later) can be expected to provide Life Safety level performance. These “Benchmark Buildings” are reasonably expected to remain stable under earthquake loading. Some of the structures have been designated as Benchmark Buildings by the City of Fairfield for the purposes of this assessment. The following are Benchmark Buildings as designated by the City of Fairfield:
• Chemical Storage Facility
• Operations Building
• Blower Building / Zone 3 Pump Station
• Ozone Generation, Liquid Oxygen (LOX) and Carbon Dioxide (CO2) • Actiflo Basins (Above Ground)
• Filter Control Building (Not Designated by City)
• Equalization Basins
• Residuals Clarifiers
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In addition, the following buildings may be classified as Concrete Vaults and Basins, which are outside the Scope of ASCE 41:
• Putah South Canal Intake Structure
• Pretreatment (Flash Mix)
• Filters
Attachment A presents a sample completed ASCE/SEI 41 Tier 1 checklist for the Plant. Information obtained as part of the screening process was then applied to the Rapid Visual Screen worksheet of FEMA P-154 to quantify the “stability” of the structure.

The Rapid Visual Screen worksheet establishes a “numeric seismic hazard score” for the structure under consideration. The seismic hazard score is an estimate of the probability that the building will collapse if ground motions that equal or exceed the MCE occur. Attachment B presents a completed FEMA P-154 Rapid Visual Screen worksheet.

2.4.1 Findings - Building Stability Assessment
Two structures were evaluated using ASCE 41 Tier 1 criteria:
• High Lift Pump Station (Treated Water Distribution) using the checklist Concrete Shear Walls with Flexible Diaphragms (ASCE 41 Type C2A) • Ozone Contact and Intermediate Chemical Addition (ICA) using the checklist Concrete Shear Walls with Stiff Diaphragms (ASCE 41 Type C2) Table 1 presents the Hazard Score for these evaluated buildings.

Table 1 – Hazard Score for Analytically Evaluated Buildings Structure Hazard Score “SL2”
Likelihood of Collapse
if subjected to the forces
of the Maximum
Considered Earthquake
High Lift Pump Station 3.1 1 in 1,260
Ozone Contact and
Intermediate Chemical
Addition

3.1 1 in 1,260
The Ozone Contactor and ICA building have concrete walls and slabs. A variety of piping and equipment is present on the roof slab. The lateral system is made up of concrete shear walls and a concrete roof diaphragm. This building was constructed in 1990. Of the 17 applicable “checks” from the ASCE/SEI 41 Tier 1 screening, none were found to be potentially “noncompliant.”
The High Lift Pump Station consists of an underground concrete vault with pumps on the slab above. The pumps are covered with a metal canopy built with wide-flange sections, metal studs, and metal deck. The lateral system consists of a steel moment frame and concrete walls. It was constructed in 2010. Of the 17 applicable “checks” from the ASCE/SEI 41 Tier 1 screening, 2 were found to be potentially “noncompliant.” The results of the Tier 1 screening for the High Lift Pump Station are presented in Table 2.

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Evaluation of non-structural components was not within TJCAA’s Scope of Work. Nonstructural components are often designed, installed, or modified without enforcement of applicable building code provisions.

2.5 Site Stability Assessment
ASTM E2026, Section 9 states the following:
“The objective of the site stability assessment is to determine if the building is located on a site that may be subjected to instability due to earthquake-induced surface fault or soil liquefaction.” Site Geology – The Plant was constructed on predominantly consolidated and unconsolidated alluvium of the Quaternary period (USGS).

Fault Rupture – Damage associated with fault-related ground rupture is normally confined to a fairly narrow zone along the trend of the primary fault and to a lesser extent along secondary faults. The Plant does not lie within the Alquist-Priolo Special Study Zone. In addition, no known active faults cross the site; as such, surface fault rupture is not anticipated.

Liquefaction – Liquefaction is defined as the transformation of a granular material from a solid state into a liquefied state as a consequence of increased pore pressure and decreased effective stress. Liquefaction is the result of cyclic ground vibrations that occur during a seismic event. The Plant is not within the scope of the USGS Liquefaction Susceptibility Map of the San Francisco Bay Area. If a liquefaction evaluation is desired, TJCAA recommends retaining the services of a Geotechnical Engineer licensed in the State of California to accurately assess the liquefaction risk of the site.

Seismic Settlement – If a seismic settlement evaluation is desired, TJCAA recommends retaining the services of a Geotechnical Engineer licensed in the State of California to accurately assess the seismic settlement risk of the site.

Tsunami – A major hazard associated with earthquakes is water inundation resulting from a tsunami (seismic sea wave). A review of the Tsunami Inundation Map for Emergency Planning, Association of Bay Area Governments1 places the Plant outside the expected inundation zone; therefore, damage to the facility resulting from flooding caused by a tsunami is unlikely.

Slope Instability/Landslide – Slope instability and landslides produced by seismically induced strong ground motions are rare in the relatively flat terrain of this plant’s site. The site is outside areas identified as having the potential for lateral spreading landslides.

2.5.1 Finding – Site Stability Assessment
The potential for the soils at the Plant to be liquefiable is unknown; consequently, the potential for seismic settlement resulting from liquefied soil is also unknown. The Plant’s location outside the tsunami inundation zone indicates a low risk of flooding due to tsunami or sea-level rise.
1 State of California. 2009. Produced by California Emergency Management Agency, California Geological Survey, and University of Southern California – Tsunami Research Center. June 2009. Mapped at 1:24,000 scale.

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The following color coding applies:

Planned Improvement Further Analysis Required No Action Recommended Table 2 - High Lift Pump Station - Noncompliant Items per ASCE/SEI 41 Tier 1 Checklist ASCE 41 Checklist Description (1) Potential
Consequence or Damage
Recommendations
/Mitigation
Measure
Engineer’s Opinion of
Probable Cost(2)
REINFORCING STEEL: The ratio of
reinforcing steel area to gross concrete
area is not less than 0.0012 in the
vertical direction and 0.0020 in the
horizontal direction. The spacing of
reinforcing steel is equal to or less than
18 inches.

The concrete shear walls rely
upon the steel reinforcing for
strength and ductility in both the
in- and out- of-plane directions.

This structure is relatively new
(2010); therefore, the steel is
likely present. We recommend
that the concrete be scanned to
verify the size and location of
existing rebar.
$0.00W
FOUNDATION DOWELS: Wall
reinforcement is doweled into the
foundation, and the dowels are able to
develop the lesser of the strength of
the walls or the uplift capacity of the
foundation.

The lateral system relies upon
foundation dowels to prevent wall
overturning and to maintain the
ability of the walls to resist load.

The steel is likely present. We
recommend that the concrete be
scanned to verify the size and
location of existing rebar to verify
that the foundation is properly
tied together.
$0
Notes

1. Checklist elements in the left-hand column are descriptions of compliant conditions and are presented verbatim from ASCE 41 Checklists. The investigation described in this technical memorandum found that this facility may be noncompliant for these items.

2. Engineering services estimates are listed per task. Credit for duplication of effort across multiple noncompliant items is not included.

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2.6 Building Damageability Assessment
ASTM E2026, Section 10 states the following:
“The objective of the building damageability assessment is to characterize expected earthquake losses associated with earthquake ground shaking and possible other earthquake hazards as prescribed by the User by performing an engineering analysis and evaluation of the damageability characteristics of the building at a given levels of earthquake ground motions.” (ASTM E2026)
Detailed analysis (ASCE 41, Tier 3) of the Plant was not within TJCAA’s Scope of Work. As such, TJCAA did not perform a Building Damageability Assessment.

2.7 Building Content Damageability Assessment
ASTM E2026, Section 11 states the following:
“The objective of the building content damageability assessment is to perform an analysis of the earthquake performance of contents within the building. This analysis is concerned with contents that are not part of the building system.” (ASTM E2026)
The effect of seismic motion on the contents of Plant buildings were not within TJCAA’s Scope of Work. As such, TJCAA did not perform a Building Content Damageability Assessment.

2.8 Business Interruption Assessment
ASTM E2026, Section 12 states the following:
“The objective of the business interruption assessment is to perform an analysis of the site, building equipment, contents, inventory systems, infrastructure, interdependent businesses, and all other relevant parameters to determine if the building will suffer business interruption from onsite effects such as direct damage to buildings and equipment or loss of critical content and supplies.” (ASTM E2026) The effect of seismic motion on elements and processes that are not part of the structural system, such as the functioning of machinery and other day-to-day business requirements of the Plant were not within TJCAA’s Scope of Work. As such, TJCAA did not perform a Business Interruption Assessment.

3. OBSERVATIONS AND RECOMMENDATIONS
Terence Cavanagh, S.E. and Ronald Migdal, S.E. performed a site visit to each of the included facilities. During the site visit, the engineers made many observations of the condition, degradation, and general configurations of the buildings. This is noted and discussed below.

3.1 Area 11 - Putah South Canal Intake Structure/Low Lift Pump Station The Putah South Canal Intake Structure and Low Lift Pump Station consist of a concrete intake structure with screens and pumps, a “Tuff Shed” building for housing equipment and, across the road, an outdoor pump station with exposed piping and Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
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pumps. The structures and piping/pumps appear to be in good condition; however, rust was noted on various metal items.

Recommendations:
• TJCAA recommends removing the rust and where necessary, applying a protective coating.

3.2 CMU Building (Near Low Lift Pump Station)
While this building was not within our scope, it was noted that the building is relatively new so it is not anticipated that this structure will have significant damage during a seismic event. However, the CMU walls do have numerous cracks. These cracks were less than 0.018 inches wide and are consistent with what we see for CMU buildings with limited expansion joints.

3.3 Area 12 – Pretreatment – Flash Mix
The Flash Mix area is in the bottom floor of the Operations Building. No significant deficiencies were noted in this area.

3.4 Area 12 – Pretreatment – Actiflo Basins
The Actiflo basins are relatively new construction. Generally speaking, from a structural perspective, these structures are consistent with what we typically see for newer construction. However, we did note the following:
• A long horizontal crack on the south wall. This crack is in a location that could indicate an overstress situation, partially up the wall, caused by water inside the basin.
• Some cracking is visible on the raised slab; these cracks are less than 0.018 inches wide. TJCAA recommends sealing these cracks to reduce water intrusion.

Recommendations:
• TJCAA recommends future investigation to determine whether the south wall crack is the cause of a structural deficiency.
• TJCAA recommends sealing these cracks to reduce water intrusion.

3.5 Area 13 – Ozone Contact and Intermediate Chemical Addition (ICA) The Ozone Contactor structure was constructed in two different phases. Both are concrete basins that appear to be consistent with what we see in current designs; however, there is some significant cracking throughout the basins.

The upper concrete deck supports numerous pipes. The pipe supports appear to be flexible in the lateral direction and may not support the pipes and conduits in the robust manner that is typical of earthquake construction.

The ICA is a short, concrete structure with a concrete upper deck. TJCAA did not have access to the interior of this structure. It is, however, relatively new and therefore is Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
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assumed to be structurally sound for the intended purpose. No significant structural issues were identified for this structure.

Recommendations:
• Further investigation for the cracks in the Ozone Contactor (Tier 2 or Tier 3 evaluation) to confirm they are not caused by structural deficiencies. • Crack sealing in the Oxone Contactor to prevent water intrusion into the concrete section.
• Further investigation into the structural adequacy of the rooftop pipe supports.

This can be completed in a Tier 2 or Tier 3 evaluation.

3.6 Area 14 – Filters
The Filters were constructed in three phases with approximate ages of 48 years (Filters 1–4), 27 years (Filters 5 and 6), and 12 years (Filters 7 and 8). A control building was added during the last addition to the Filter structure. The basins are generally in good condition; however, concrete deterioration was observed, with more deterioration in the older basins.

In addition to the concrete deterioration, several cracks were noted in the Filter gallery, top slab, and CMU control building. Most of these cracks appear to be minor, but further evaluation is warranted in the filter gallery to confirm the cracks are not structurally significant. Larger cracks were identified between basins 6 and 8, and in the top slab near the wall intersections. Again, these cracks should be assessed and sealed.

Recommendations:
• Evaluate the cause of concrete deterioration and total amount of lost concrete and assess whether this will be significant to the structural integrity of the basins.
• Monitor concrete deterioration every 3 to 5 years to confirm it does not reach a level that results in an unsafe structure.
• Seal cracks to prevent future water from migrating into the concrete walls/slabs.
• Assess larger cracks to determine whether they are the cause of a structural deficiency in the basins.

3.7 Area 15 – High Lift Pump Station / Treated Water Distribution The High Lift Pump Station and Treated Water Distribution structure is a buried concrete basin with exposed pumps and piping on the upper deck. A structural steel canopy covers the area. No structural deficiencies were identified. However, some of the pipe supports appear to have settled, resulting in an air gap between the support and the pipe above.

Recommendations:
• Evaluate the pipe supports to determine whether the lack of support causes excessive stress in the pipe when subjected to the anticipated design loads. As an alternative, shims may be used to restore full support of the pipelines.

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3.8 Area 16 – Chemical Storage Facility
The chemical storage area is approximately 12 years old and consist of a concrete foundation/slab with a CMU building. Chemical storage tanks are in secondary containment areas on two sides of the CMU building. While the building is relatively new and generally in good condition, the following issues were identified during our site visit.
• Cracks are present at the north wall.
• Significant efflorescence is present at the south wall. • Conduits pass through the slab/secondary containment. This could be a source of leakage if fluids are present.
• Many cracks are present in the floor slab.
• There is at least one missing nut at the chemical pump skid anchor connections.
• Many of the skids have missing anchors.
• Beam corrosion is present at the outdoor canopy. These beams appear to have been damaged by an impact, perhaps from a truck or forklift.

Recommendations:
• Evaluate the cause of the significant cracks in the CMU wall and rectify any identified deficiencies.
• Seal the less-significant cracks to prevent water infiltration. • Apply exterior waterproofing to the CMU Building.

3.9 Area 17 – Ozone Generation, Liquid Oxygen (LOX) and Carbon Dioxide (CO2)
The Ozone Generation structure is a concrete structure that is approximately 32 years old. No significant structural deficiencies were identified in this structure.

3.10 Area 18 – Equalization Basin and Pump Station
Two 12-year-old, buried, open top, circular concrete basins are used for equalization.

No structural deficiencies were identified.

The Pump Station is a 12-year-old, buried concrete structure with an exposed concrete top. No structural deficiencies were identified.

3.11 Area 19 – Sludge Clarifiers
The Sludge Clarifiers are two buried concrete structures with open tops. These were built approximately 12 years ago and have a bridge connecting the two basins. The structures are generally in good condition with the exception of a large crack in the bottom of the basin. This could just be a crack in the topping grout. However, due to confined space issues, TJCAA was not able to enter the basins to confirm the significance of this crack.

Recommendations:
• Investigate the cause of the large crack in the bottom of the basin and rectify as needed.

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3.12 Area 20 – Operations Building
The operations building is a multi-story, concrete structure that was built around 1990. No significant structural deficiencies were identified during our site visit.

3.13 Blower Building / Zone 3 Pump Station
The blower building is a concrete slab, CMU building with a metal deck roof. This structure is approximately 12 years old. Minor cracks were visible in the CMU walls, along with efflorescence on the east and south walls. Plant staff indicated that the roof leaks.

Recommendations:
• Seal any significant cracks in the CMU Walls.
• Apply exterior waterproofing to the CMU Building.
• Replace or repair the roofing to eliminate any leaks.

4. SUMMARY
TJCAA’s recommendations are based on generally accepted standards of engineering practice. TJCAA relied on as-built drawings provided by the City; as such, the opinions presented herein are reflective of the information contained in the as-built drawings.

TJCAA was not retained to, and has not attempted to, identify any errors or omissions in the as-built drawings or deviations from the actual Plant construction. Errors, omissions, or deviations that exist could affect the opinions presented below.

4.1 General Above-Grade Building Recommendations
One above-grade structure had checklist items that TJCAA identified as “unknown.” Due to the age and type of construction and the observed quality of construction, TJCAA suggests that the checklist items are not identifying pertinent deficiencies and that the unknown reinforcing steel is in fact present at the necessary locations and in the necessary quantity. The result of the screenings is that all the assessed abovegrade structures are likely to be ready for immediate occupancy following a BSE-1E magnitude seismic event.

For reasons of long-term durability, it is important to address the water intrusion issue identified at the Ozone Contact Structure, along with other issues and recommendations identified in Section 3.

Anchorage of equipment, shelving, and storage cabinets, and the proper storage of heavy items, to reduce the risk of non-structural items falling and damaging Plant equipment or releasing hazardous materials, was not part of this investigation. A survey of Plant equipment and storage should be conducted to identify items that are unanchored and/or exceed the weight or aspect ratios that require anchorage by Code. Until a complete inventory can be developed, plant staff may wish to anchor any unanchored equipment/fixtures to prevent damage during an earthquake.

4.2 General Below-Grade Basin and Vault Recommendations Overall, the below-grade Plant facilities appear to be well-maintained and in good condition. Section 3 provides specific recommendations for the various basins and below grade structures. Ongoing regular maintenance must be performed on all below-grade concrete.

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Attachment A

ATTACHMENT A
ASCE/SEI 41 Tier 1 Checklist
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 1 Rev. 41-31.1 Project Name
Project Number
ASCE 41-13 Tier 1 Checklists
FIRM:

PROJECT NAME:

SEISMICITY LEVEL:

PROJECT NUMBER:

COMPLETED BY:

DATE COMPLETED:

REVIEWED BY:

REVIEW DATE:

Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 2 Rev. 41-31.1 Project Name
Project Number

16.10IO Immediate Occupancy Structural Checklist for Building Types C2:

Concrete Shear Walls with Stiff Diaphragms and C2a: Concrete Shear Walls with Flexible Diaphragms
Very Low Seismicity
Seismic-Force-Resisting System

RATING DESCRIPTION COMMENTS
C NC N/A U COMPLETE FRAMES: Steel or concrete frames
classified as secondary components form a
complete vertical-load-carrying system.
(Commentary: Sec. A.3.1.6.1. Tier 2: Sec. 5.5.2.5.1)
C NC N/A U REDUNDANCY: The number of lines of shear walls in each principal direction is greater than or equal
to 2. (Commentary: Sec. A.3.2.1.1. Tier 2: Sec.

5.5.1.1)
C NC N/A U SHEAR STRESS CHECK: The shear stress in the
concrete shear walls, calculated using the Quick
Check procedure of Section 4.5.3.3, is less than
the greater of 100 lb/in.2 or 2√f'c. (Commentary:

Sec. A.3.2.2.1. Tier 2: Sec. 5.5.3.1.1)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 3 Rev. 41-31.1 Project Name
Project Number
C NC N/A U REINFORCING STEEL: The ratio of reinforcing steel area to gross concrete area is not less than 0.0012
in the vertical direction and 0.0020 in the
horizontal direction. The spacing of reinforcing
steel is equal to or less than 18 in. (Commentary:

Sec. A.3.2.2.2. Tier 2: Sec. 5.5.3.1.3)
Connections

RATING DESCRIPTION COMMENTS
C NC N/A U WALL ANCHORAGE AT FLEXIBLE DIAPHRAGMS:

Exterior concrete or masonry walls that are
dependent on flexible diaphragms for lateral
support are anchored for out-of-plane forces at
each diaphragm level with steel anchors,
reinforcing dowels, or straps that are developed
into the diaphragm. Connections have adequate
strength to resist the connection force calculated
in the Quick Check procedure of Section 4.5.3.7.
(Commentary: Sec.A.5.1.1. Tier 2: Sec. 5.7.1.1)
C NC N/A U TRANSFER TO SHEAR WALLS: Diaphragms are
connected for transfer of loads to the shear walls,
and the connections are able to develop the
lesser of the shear strength of the walls or
diaphragms. (Commentary: Sec. A.5.2.1. Tier 2:

Sec. 5.7.2)
C NC N/A U FOUNDATION DOWELS: Wall reinforcement is
doweled into the foundation, and the dowels are
able to develop the lesser of the strength of the
walls or the uplift capacity of the foundation.
(Commentary: Sec. A.5.3.5. Tier 2: Sec. 5.7.3.4)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 4 Rev. 41-31.1 Project Name
Project Number
Foundation System

RATING DESCRIPTION COMMENTS
C NC N/A U DEEP FOUNDATIONS: Piles and piers are capable of transferring the seismic forces between the
structure and the soil. (Commentary: Sec. A.6.2.3.)
C NC N/A U SLOPING SITES: The difference in foundation
embedment depth from one side of the building
to another does not exceed one story high.
(Commentary: Sec. A.6.2.4)
Low, Moderate, and High Seismicity
Seismic-Force-Resisting System

RATING DESCRIPTION COMMENTS
C NC N/A U DEFLECTION COMPATIBILITY: Secondary
components have the shear capacity to develop
the flexural strength of the components and are
compliant with the following items: COLUMN-BAR

SPLICES, BEAM-BAR SPLICES, COLUMN-TIE
SPACING, STIRRUP SPACING, and STIRRUP AND
TIE HOOK in the Immediate Occupancy Structural
Checklist for Building Type C1. (Commentary: Sec.

A.3.1.6.2. Tier 2: Sec. 5.5.2.5.2)
C NC N/A U FLAT SLABS: Flat slabs or plates not part of seismic-force-resisting system have continuous
bottom steel through the column joints.
(Commentary: Sec. A.3.1.6.3. Tier 2: Sec. 5.5.2.5.3)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 5 Rev. 41-31.1 Project Name
Project Number
C NC N/A U COUPLING BEAMS: The stirrups in coupling beams over means of egress are spaced at or less than
d/2 and are anchored into the confined core of
the beam with hooks of 135 degrees or more. The
ends of both walls to which the coupling beam is
attached are supported at each end to resist
vertical loads caused by overturning. Coupling
beams have the capacity in shear to develop the
uplift capacity of the adjacent wall. (Commentary:

Sec.A.3.2.2.3. Tier 2: Sec. 5.5.3.2.1)
C NC N/A U OVERTURNING: All shear walls have aspect ratios less than 4-to-1. Wall piers need not be
considered. (Commentary: Sec. A.3.2.2.4. Tier 2:

Sec. 5.5.3.1.4)
C NC N/A U CONFINEMENT REINFORCING: For shear walls with aspect ratios greater than 2-to-1, the boundary
elements are confined with spirals or ties with
spacing less than 8db. (Commentary: Sec.

A.3.2.2.5. Tier 2: Sec. 5.5.3.2.2)
C NC N/A U WALL REINFORCING AT OPENINGS: There is added trim reinforcement around all wall openings with
a dimension greater than three times the
thickness of the wall. (Commentary: Sec. A.3.2.2.6.

Tier 2: Sec. 5.5.3.1.5)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 6 Rev. 41-31.1 Project Name
Project Number
C NC N/A U WALL THICKNESS: Thicknesses of bearing walls is not less than 1/25 the unsupported height or
length, whichever is shorter, nor less than 4 in.
(Commentary: Sec. A.3.2.2.7. Tier 2: Sec. 5.5.3.1.2)
Connections

RATING DESCRIPTION COMMENTS
C NC N/A U UPLIFT AT PILE CAPS: Pile caps have top
reinforcement, and piles are anchored to the pile
caps; the pile cap reinforcement and pile
anchorage are able to develop the tensile
capacity of the piles. (Commentary: Sec. A.5.3.8.

Tier 2: Sec. 5.7.3.5)
Diaphragms (Flexible or Stiff)

RATING DESCRIPTION COMMENTS
C NC N/A U DIAPHRAGM CONTINUITY: The diaphragms are
not composed of split-level floors and shall not
have expansion joints. (Commentary: Sec. A.4.1.1.

Tier 2: Sec. 5.6.1.1)
C NC N/A U OPENINGS AT SHEAR WALLS: Diaphragm
openings immediately adjacent to the shear walls
are less than 15% of the wall length.
(Commentary: Sec. A.4.1.4. Tier 2: Sec. 5.6.1.3)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 7 Rev. 41-31.1 Project Name
Project Number
C NC N/A U PLAN IRREGULARITIES: There is tensile capacity to develop the strength of the diaphragm at
reentrant corners or other locations of plan
irregularities. (Commentary: Sec. A.4.1.7. Tier 2:

Sec. 5.6.1.4)
C NC N/A U DIAPHRAGM REINFORCEMENT AT OPENINGS:

There is reinforcing around all diaphragm
openings larger than 50% of the building width in
either major plan dimension. (Commentary: Sec.

A.4.1.8. Tier 2: Sec. 5.6.1.5)
Flexible Diaphragms

RATING DESCRIPTION COMMENTS
C NC N/A U CROSS TIES: There are continuous cross ties
between diaphragm chords. (Commentary: Sec.

A.4.1.2. Tier 2: Sec. 5.6.1.2)
C NC N/A U STRAIGHT SHEATHING: All straight sheathed
diaphragms have aspect ratios less than 1-to-1 in
the direction being considered. (Commentary:

Sec. A.4.2.1. Tier 2: Sec. 5.6.2)
Legend: C = Compliant, NC = Noncompliant, N/A = Not Applicable, U = Unknown © 2014 American Society of Civil Engineers 8 Rev. 41-31.1 Project Name
Project Number
C NC N/A U SPANS: All wood diaphragms with spans greater than 12 ft consist of wood structural panels or
diagonal sheathing. (Commentary: Sec. A.4.2.2.

Tier 2: Sec. 5.6.2)

C NC N/A U DIAGONALLY SHEATHED AND UNBLOCKED
DIAPHRAGMS: All diagonally sheathed or
unblocked wood structural panel diaphragms
have horizontal spans less than 30 ft and aspect
ratios less than or equal to 3-to-1. (Commentary:

Sec. A.4.2.3. Tier 2: Sec. 5.6.2)
C NC N/A U NONCONCRETE FILLED DIAPHRAGMS: Untopped
metal deck diaphragms or metal deck
diaphragms with fill other than concrete consist
of horizontal spans of less than 40 ft and have
aspect ratios less than 4-to-1. (Commentary: Sec.

A.4.3.1. Tier 2: Sec. 5.6.3)
C NC N/A U OTHER DIAPHRAGMS: The diaphragm does not
consist of a system other than wood, metal deck,
concrete, or horizontal bracing. (Commentary:

Sec. A.4.7.1. Tier 2: Sec. 5.6.5)
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Attachment B

ATTACHMENT B
FEMA P-154 Level 2 Data Collection Form

Rapid Visual Screening of Buildings for Potential Seismic Hazards Level 1

FEMA P-154 Data Collection Form VERY HIGH Seismicity

Legend: MRF = Moment-resisting frame RC = Reinforced concrete URM INF = Unreinforced masonry infill MH = Manufactured Housing FD = Flexible diaphragm

PHOTOGRAPH
Address:

Zip:

Other Identifiers:

Building Name:

Use:

Latitude: Longitude:

SS: S1:

Screener(s): Date/Time:

No. Stories: Above Grade: Below Grade: Year Built: EST
Total Floor Area (sq. ft.): Code Year:

Additions: None Yes, Year(s) Built:

Occupancy: Assembly Commercial Emer. Services Historic Shelter Industrial Office School Government
Utility Warehouse Residential, # Units:

Soil Type: A
Hard
Rock
B
Avg
Rock
C
Dense
Soil
D
Stiff
Soil
E
Soft
Soil
F
Poor
Soil
DNK
If DNK, assume Type D.

Geologic Hazards: Liquefaction: Yes/No/DNK Landslide: Yes/No/DNK Surf. Rupt.: Yes/No/DNK Adjacency: Pounding Falling Hazards from Taller Adjacent Building Irregularities: Vertical (type/severity)
Plan (type)
Exterior Falling
Hazards:

Unbraced Chimneys Heavy Cladding or Heavy Veneer
Parapets Appendages
Other: _______________________________________________
COMMENTS:

SKETCH Additional sketches or comments on separate page BASIC SCORE, MODIFIERS, AND FINAL LEVEL 1 SCORE, SL1
FEMA BUILDING TYPE Do Not
Know
W1 W1A W2 S1
(MRF)
S2
(BR)
S3
(LM)
S4
(RC
SW)
S5
(URM
INF)
C1
(MRF)
C2
(SW)
C3
(URM
INF)
PC1
(TU)
PC2 RM1
(FD)
RM2
(RD)
URM MH
Basic Score
Severe Vertical Irregularity, VL1
Moderate Vertical Irregularity, VL1
Plan Irregularity, PL1
Pre-Code
Post-Benchmark
Soil Type A or B
Soil Type E (1-3 stories)
Soil Type E (> 3 stories)

2.1 -0.9
-0.6
-0.7
-0.3

1.9 0.5

0.0 -0.4

1.9 -0.9
-0.5
-0.7
-0.3

1.9 0.5
-0.2
-0.4

1.8 -0.9
-0.5
-0.6
-0.3

2.0 0.4
-0.4
-0.4

1.5 -0.8
-0.4
-0.5
-0.3

1.0 0.3
-0.3
-0.3

1.4 -0.7
-0.4
-0.5
-0.2

1.1 0.3
-0.2
-0.3

1.6 -0.8
-0.5
-0.6
-0.3

1.1 0.4
-0.2
NA

1.4 -0.7
-0.4
-0.4
-0.2

1.5 0.3
-0.2
-0.3

1.2 -0.7
-0.3
-0.4
-0.1
NA

0.2 -0.1
-0.1

1.0 -0.7
-0.4
-0.4
-0.1

1.4 0.2
-0.1
-0.1

1.2 -0.8
-0.4
-0.5
-0.2

1.7 0.3
-0.2
-0.3

0.9 -0.6
-0.3
-0.3

0.0 NA

0.1 0.0
-0.1

1.1 -0.7
-0.4
-0.5
-0.2

1.5 0.3
-0.2
NA

1.0 -0.7
-0.4
-0.4
-0.1

1.7 0.2
-0.1
-0.1

1.1 -0.7
-0.4
-0.4
-0.2

1.6 0.3
-0.2
-0.2

1.1 -0.7
-0.4
-0.4
-0.2

1.6 0.3
-0.2
-0.2

0.9 -0.6
-0.3
-0.3

0.0 NA

0.1 0.0

0.0 1.1
NA
NA
NA

0.0 0.5

0.1 -0.1
NA
Minimum Score, SMIN 0.7 0.7 0.7 0.5 0.5 0.5 0.5 0.5 0.3 0.3 0.3 0.2 0.2 0.3 0.3 0.2 1.0 FINAL LEVEL 1 SCORE, SL1 ≥ SMIN:

EXTENT OF REVIEW
Exterior: Partial All Sides Aerial
Interior: None Visible Entered
Drawings Reviewed: Yes No
Soil Type Source:

Geologic Hazards Source:

Contact Person:

OTHER HAZARDS
Are There Hazards That Trigger A
Detailed Structural Evaluation?
Pounding potential (unless SL2 >
cut-off, if known)
Falling hazards from taller adjacent
building
Geologic hazards or Soil Type F
Significant damage/deterioration to
the structural system

ACTION REQUIRED
Detailed Structural Evaluation Required?
Yes, unknown FEMA building type or other building
Yes, score less than cut-off
Yes, other hazards present
No
Detailed Nonstructural Evaluation Recommended? (check one) Yes, nonstructural hazards identified that should be evaluated No, nonstructural hazards exist that may require mitigation, but a detailed evaluation is not necessary
No, no nonstructural hazards identified DNK
LEVEL 2 SCREENING PERFORMED?
Yes, Final Level 2 Score, SL2 No
Nonstructural hazards? Yes No
Where information cannot be verified, screener shall note the following: EST = Estimated or unreliable data OR DNK = Do Not Know BR = Braced frame SW = Shear wall TU = Tilt up LM = Light metal RD = Rigid diaphragm

Rapid Visual Screening of Buildings for Potential Seismic Hazards Level 2 (Optional)

FEMA P-154 Data Collection Form VERY HIGH Seismicity
Optional Level 2 data collection to be performed by a civil or structural engineering professional, architect, or graduate student with background in seismic evaluation or design of buildings.

Bldg Name: Final Level 1 Score: SL1 = (do not consider SMIN) Screener: Level 1 Irregularity Modifiers: Vertical Irregularity, VL1 = Plan Irregularity, PL1 = Date/Time: ADJUSTED BASELINE SCORE: S’ = (SL1 – VL1 – PL1) =

STRUCTURAL MODIFIERS TO ADD TO ADJUSTED BASELINE SCORE
Topic Statement (If statement is true, circle the “Yes” modifier; otherwise cross out the modifier.) Yes Subtotals Vertical
Irregularity, VL2
Sloping
Site
W1 building: There is at least a full story grade change from one side of the building to the other. -0.9 VL2 = _______
(Cap at  ‐0.9)
Non-W1 building: There is at least a full story grade change from one side of the building to the other. -0.2 Weak
and/or
Soft Story
(circle one
maximum)
W1 building cripple wall: An unbraced cripple wall is visible in the crawl space. -0.5 W1 house over garage: Underneath an occupied story, there is a garage opening without a steel moment frame, and there is less than 8' of wall on the same line (for multiple occupied floors above, use 16' of wall minimum). -0.9 W1A building open front: There are openings at the ground story (such as for parking) over at least 50% of the length of the building. -0.9
Non-W1 building: Length of lateral system at any story is less than 50% of that at story above or height of any story is more than 2.0 times the height of the story above. -0.7 Non-W1 building: Length of lateral system at any story is between 50% and 75% of that at story above or height of any story is between 1.3 and 2.0 times the height of the story above. -0.4 Setback Vertical elements of the lateral system at an upper story are outboard of those at the story below causing the diaphragm to cantilever at the offset. -0.7
Vertical elements of the lateral system at upper stories are inboard of those at lower stories. -0.4 There is an in-plane offset of the lateral elements that is greater than the length of the elements. -0.2 Short
Column/
Pier
C1,C2,C3,PC1,PC2,RM1,RM2: At least 20% of columns (or piers) along a column line in the lateral system have height/depth ratios less than 50% of the nominal height/depth ratio at that level. -0.4 C1,C2,C3,PC1,PC2,RM1,RM2: The column depth (or pier width) is less than one half of the depth of the spandrel, or there are infill walls or adjacent floors that shorten the column. -0.4 Split Level There is a split level at one of the floor levels or at the roof. -0.4 Other
Irregularity
There is another observable severe vertical irregularity that obviously affects the building's seismic performance. -0.7 There is another observable moderate vertical irregularity that may affect the building's seismic performance. -0.4 Plan
Irregularity, PL2
Torsional irregularity: Lateral system does not appear relatively well distributed in plan in either or both directions. (Do not include the W1A open front irregularity listed above.) -0.5 PL2 = _______
(Cap at ‐0.7)
Non-parallel system: There are one or more major vertical elements of the lateral system that are not orthogonal to each other. -0.2 Reentrant corner: Both projections from an interior corner exceed 25% of the overall plan dimension in that direction. -0.2 Diaphragm opening: There is an opening in the diaphragm with a width over 50% of the total diaphragm width at that level. -0.2 C1, C2 building out-of-plane offset: The exterior beams do not align with the columns in plan. -0.2 Other irregularity: There is another observable plan irregularity that obviously affects the building's seismic performance. -0.5 Redundancy The building has at least two bays of lateral elements on each side of the building in each direction. +0.2 M = ________
Pounding Building is separated from an adjacent structure by less than 1.5% of the height of the shorter of
the building and adjacent structure and:

The floors do not align vertically within 2 feet. (Cap total pounding
modifiers at -0.9)
-0.7
One building is 2 or more stories taller than the other. -0.7 The building is at the end of the block. -0.4
S2 Building “K” bracing geometry is visible. -0.7
C1 Building Flat plate serves as the beam in the moment frame. -0.3 PC1/RM1 Bldg There are roof-to-wall ties that are visible or known from drawings that do not rely on cross-grain bending. (Do not combine with post-benchmark or retrofit modifier.) +0.2
PC1/RM1 Bldg The building has closely spaced, full height interior walls (rather than an interior space with few walls such as in a warehouse). +0.2 URM Gable walls are present. -0.3
MH There is a supplemental seismic bracing system provided between the carriage and the ground. +0.5 Retrofit Comprehensive seismic retrofit is visible or known from drawings. +1.2 FINAL LEVEL 2 SCORE, SL2 = (S’ + VL2 + PL2 + M) ≥ SMIN: (Transfer to Level 1 form) There is observable damage or deterioration or another condition that negatively affects the building's seismic performance: Yes No If yes, describe the condition in the comment box below and indicate on the Level 1 form that detailed evaluation is required independent of the building's score.

OBSERVABLE NONSTRUCTURAL HAZARDS
Location Statement (Check “Yes” or “No”) Yes No Comment Exterior There is an unbraced unreinforced masonry parapet or unbraced unreinforced masonry chimney.

There is heavy cladding or heavy veneer.

There is a heavy canopy over exit doors or pedestrian walkways that appears inadequately supported.

There is an unreinforced masonry appendage over exit doors or pedestrian walkways.

There is a sign posted on the building that indicates hazardous materials are present.

There is a taller adjacent building with an unanchored URM wall or unbraced URM parapet or chimney.

Other observed exterior nonstructural falling hazard:

Interior There are hollow clay tile or brick partitions at any stair or exit corridor.

Other observed interior nonstructural falling hazard:

Estimated Nonstructural Seismic Performance (Check appropriate box and transfer to Level 1 form conclusions) Potential nonstructural hazards with significant threat to occupant life safety Detailed Nonstructural Evaluation recommended Nonstructural hazards identified with significant threat to occupant life safety But no Detailed Nonstructural Evaluation required Low or no nonstructural hazard threat to occupant life safety No Detailed Nonstructural Evaluation required Comments:

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06/23/23
Attachment C

ATTACHMENT C
Photos
Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-1
Photograph 1 –Intake Structure - Oxidation at Grating and Beams Photograph 2 – Actiflo Basin – Large Crack at South Wall Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-2
Photograph 3 – Actiflo Basin – Cracking at Raised Slab
Photograph 4 – Ozone Contact – Cracks at Exit Stairs
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06/23/23
Attachment C-3
Photograph 5 – Filters – Crack in Gallery
Photograph 6 – Filters – Exceptionally Large Crack Between Filters 5 and 6 Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-4
Photograph 7 – Filters – Concrete Deterioration
Photograph 8 – Chemical Storage Building – Crack at North Wall Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-5
Photograph 9 – Chemical Storage Building – Noted Efflorescence Photograph 10 – Chemical Storage Facility – Conduits Pass Through Slab Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-6
Photograph 11 – Chemical Storage Facility – Rust and Truck Damage at Canopy Beams
Photograph 12 – Residual Lagoons – Crack at Basin Slab
Https://tjcaa.sharepoint.com/sites/ProjectFiles/2022/122084 - WY, Fairfield WTP Master Plan/6.0/122084 - Technical Memorandum Fairfield Waterman WTP (2023-06-23).docx
06/23/23
Attachment C-7
Photograph 13 – Blower Building / Zone 3 Pump Station – Efflorescence at East and South Walls
Waterman WTP Condition Assessment Photographs
Appendix B
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-1 City of Fairfield
Waterman WTP Condition Assessment
Process Area 11 – Putah South Canal Intake and Low Lift Pump Station Photo 11.1
Putah South Canal Intake and Drum Screens (Looking
East)
Photo 11.2
Putah South Canal Intake and Drum Screens (Looking
West)
Photo 11.3
Canal Intake Instrumentation Shed (Looking West)
Photo 11.4
Mild Corrosion at Drum Screen Shroud
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-2 City of Fairfield
Waterman WTP Condition Assessment
Photo 11.5
Drum Screen Washwater Pumps
Photo 11.6
Low Lift Pump Station (Looking West)
Photo 11.7
Low Lift Pump Station Discharge Header and Chemical
Injection Ports
Photo 11.8
Raw Water Sampling Equipment and Instrumentation
(Beneath Plant Entrance Bridge over Canal)
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-3 City of Fairfield
Waterman WTP Condition Assessment
Process Area 12 – Pretreatment
Photo 12.1
Flash Mix Pumps
Photo 12.2
Chemical Piping Above Flash Mix Vault
Photo 12.3
Actiflo Process (Looking West)
Photo 12.4
Mixers and Sludge Hydrocyclones (Looking West)
Photo 12.5
Actiflo Mixers (Looking West)
Photo 12.5
Settled Water Effluent Troughs and Scraper Drive
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-4 City of Fairfield
Waterman WTP Condition Assessment
Photo 12.6
Actiflo Basin Floor Area
Photo 12.7
Actiflo Sludge Pump Station
Photo 12.8
Settled Water Effluent Channel / Ozone Contactor Inlet
Valves
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-5 City of Fairfield
Waterman WTP Condition Assessment
Process Area 13 – Ozone Contact and Intermediate Chemical Addition Photo 13.1
Top of Ozone Contactors (Looking North)
Contactor Access Hatch in Foreground
Photo 13.2
Contactor Inlet Channel and Valves
Photo 13.3
Utility Crane on Contactor Deck
Photo 13.4
Stairwell to Contactor Gallery and Actiflo Sludge Pump
Station
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-6 City of Fairfield
Waterman WTP Condition Assessment
Photo 13.5
Ozone Destruct Equipment
Photo 13.6
Ozone Destruct Exhaust Fans
Photo 13.7
MCC 2M1
Photo 13.8
Intermediate Chemical Addition Vault
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-7 City of Fairfield
Waterman WTP Condition Assessment
Process Area 14 – Filtration
Photo 14.1
Filter Facility (Looking South)
Photo 14.2
Filter Top Deck (Looking East)
Photo 14.3
Typical Filter Basin
Photo 14.4
Filter Gallery
Photo 14.5
Typical Filter Piping and Valving
Photo 14.6
Filter to Waste Pumps
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-8 City of Fairfield
Waterman WTP Condition Assessment
Photo 14.7
Typical Filter Instrumentation
Photo 14.8
Filtered Water Chemical Injection
Photo 14.9
Typical Filter Gallery Drainage Sump
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-9 City of Fairfield
Waterman WTP Condition Assessment
Process Area 15 – High Lift Pump Station
Photo 15.1
HLPS (Looking South)
Photo 15.2
Treated Water Discharge Piping (Looking East)
Photo 15.3
Bridge Vault (Looking North)
Photo 15.4
Isolation and Air Relief Valves in Bridge Vault
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-10 City of Fairfield
Waterman WTP Condition Assessment
Photo 15.5
Bridge Vault Electrical Conduit and Wiring
Photo 15.6
Bridge Vault Instrumentation
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-11 City of Fairfield
Waterman WTP Condition Assessment
Process Area 16 – Chemicals
Photo 16.1
Bulk Caustic Storage Tanks and Chemical Building
(Looking West)
Photo 16.2
Bulk Fluoride Storage Tanks (Looking West)
Photo 16.3
Basic Chemical Fill Station and Spill Containment
Discharge Station
Photo 16.4
Acidic Chemical Fill Station
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-12 City of Fairfield
Waterman WTP Condition Assessment
Photo 16.5
Typical Skid-Mounted Chemical Metering Pumps
Photo 16.6
Chemical Building Interior
Photo 16.7
Typical Metering Pump Instrumentation
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-13 City of Fairfield
Waterman WTP Condition Assessment
Process Area 17 – LOX Storage and Ozone Generation Building Photo 17.1
Typical Original Ozone Generator and Power Supply Unit
Photo 17.2
Newest Ozone Generator and Power Supply Unit
Photo 17.3
LOX Storage Tank and Carbon Dioxide Vaporizer
Photo 17.4
LOX Vaporizers
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-14 City of Fairfield
Waterman WTP Condition Assessment
Photo 17.5
GOX Manifold
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-15 City of Fairfield
Waterman WTP Condition Assessment
Process Area 18 – Washwater Equalization and Recycle Pump Station Photo 18.1
Typical Washwater EQ Basin (Looking South)
Photo 18.1
Typical Washwater EQ Basin
Photo 18.3
Recycle Pump Station
Photo 18.4
Recycle Pump Station Piping
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-16 City of Fairfield
Waterman WTP Condition Assessment
Photo 18.5
Typical Elevated Air Valve
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-17 City of Fairfield
Waterman WTP Condition Assessment
Process Area 19 – Sludge Clarifiers and Lagoons
Photo 19.1
Typical Out of Service Clarifier
Photo 19.2
Typical In Service Clarifier
Photo 19.3
Clarifier Mechanism Drive and Control Panel
Photo 19.4
Typical Sludge Lagoon (Looking West)
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-18 City of Fairfield
Waterman WTP Condition Assessment
Photo 19.5
Typical Sludge Lagoon Decant Structure (Looking West)
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-19 City of Fairfield
Waterman WTP Condition Assessment
Process Area 20 – Operations Building
Photo 20.1
Operations Building (Looking Southwest)
Photo 20.2
Water Quality Laboratory (Looking North)
Photo 20.3
Water Quality Laboratory (Looking West)
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-20 City of Fairfield
Waterman WTP Condition Assessment
Process Area 21 – Blower Building / Zone 3 Pump Station Photo 21.1
Blower / Z3PS Building (Looking East)
Photo 21.2
Blower / Z3PS Building (Looking North)
Photo 21.3
Filter Backwash Air Scour Blower
Photo 21.4
Zone 3 Pumps and Piping
Appendix B
Waterman WTP Condition Assessment Photographs
N-C-268-60-22-20-WP-TM3
B-21 City of Fairfield
Waterman WTP Condition Assessment
Photo 21.5
Blower Control Panels
Photo 21.6
Utility Transformer and EV Charging Station
Waterman WTP Risk Assessment Asset Level
Consequence of Failure (COF) and Likelihood of Failure
(LOF) Ratings
Appendix C

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 11-Intake / LLPS WTM-Building-1 Building and Grounds 1974 None Building Structure Building Structure 1 No Action Required Reduced Capacity/Pressure 4 7 28 Med-High WTM 20-Operations Bldg WTM-Building-10 Building and Grounds 1974 None Building Structure Building Structure 1 No Action Required Reduced Efficiency 4 6 24 Med-High WTM 21-Blowers / Z3PS WTM-Building-11 Building and Grounds 1974 None Building Structure Building Structure 1 Increased
Maintenance Process/Facility Cannot Operate Without 5 8 40 High WTM 12-Pretreatment WTM-Building-2 Building and Grounds 1974 None Building Structure Building Structure 1 Increased
Maintenance Process/Facility Cannot Operate Without 5 9 45 High WTM 13-Ozone Contact + ICA WTM-Building-3 Building and Grounds 1974 None Building Structure Building Structure 1 Increased
Maintenance Reduced Efficiency 5 7 35 Med-High
WTM 14-Filters WTM-Building-4 Building and Grounds 1974 None Building Structure Building Structure 1 Increased
Maintenance Process/Facility Cannot Operate Without 5 9 45 High WTM 15-HLPS WTM-Building-5 Building and Grounds 1974 None Building Structure Building Structure 1 No Action Required Process/Facility Cannot Operate Without 4 9 36 High WTM 16-Chemicals WTM-Building-6 Building and Grounds 1974 None Building Structure Building Structure 1 Rehabilitation Process/Facility Cannot Operate Without 6 8 48 High WTM 17-Ozone Generation WTM-Building-7 Building and Grounds 1974 None Building Structure Building Structure 1 No Action Required Reduced Efficiency 4 6 24 Med-High WTM 18-EQ Basin + WW PS WTM-Building-8 Building and Grounds 1974 None Building Structure Building Structure 1 No Action Required Process/Facility Cannot Operate Without 4 9 36 High WTM 19-Sludge Clarifiers and Lagoons WTM-Building-9 Building and Grounds 1974 None Building Structure Building Structure 1 Increased
Maintenance Process/Facility Cannot Operate Without 5 9 45 High WTM 13-Ozone Contact + ICA WTM-Blower-1 Mechanical Systems 1990 OD-BLO-1 OZONE DESTRUCT BLOWER/FAN 1, Blower Blower -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 21-Blowers / Z3PS WTM-Blower-10 Mechanical Systems 2010 FS-SIL-4 FS-SIL-4, FILTER AIR SCOUR BLOWER #1, INTAKE SILENCER,
BLOWER BLDG, WTP Blower Blower 7 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 4 16 Med-Low
WTM 21-Blowers / Z3PS WTM-Blower-11 Mechanical Systems 2010 FS-SIL-5 FS-SIL-5, FILTER AIR SCOUR BLOWER #2, INTAKE SILENCER,
BLOWER BLDG, WTP Blower Blower 7 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 4 16 Med-Low
WTM 13-Ozone Contact + ICA WTM-Blower-2 Mechanical Systems 1990 OD-BLO-2 OZONE DESTRUCT BLOWER/FAN 2, Blower Blower -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 13-Ozone Contact + ICA WTM-Blower-3 Mechanical Systems 1990 OD-EF-1 EXHAUST FAN, OZONE BASIN ROOF, O3 SAMPLE ALLEY, WTP Blower Blower -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Blower-4 Mechanical Systems 1990 OD-EF-3, EXHAUST FAN, OZONE DESTRUCT ROOF, WTP Blower Blower -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Blower-5 Mechanical Systems 2010 OG-CMP-1 OG-CMP-1, COMPRESSOR, NITROGEN FEED 1, OZONE GEN RM,
WTP Blower Blower 7 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 4 16 Med-Low
WTM 17-Ozone Generation WTM-Blower-6 Mechanical Systems 2010 OG-CMP-2 OG-CMP-2, COMPRESSOR, NITROGEN FEED 2, OZONE GEN RM,
WTP Blower Blower 7 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 4 16 Med-Low
WTM 21-Blowers / Z3PS WTM-Blower-7 Mechanical Systems 2010 FS-BLO-1 FS-BLO-1, BLOWER #1, FILTER AIR SCOUR, BLOWER BLDG, WTP Blower Blower 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 5 20 Medium
WTM 21-Blowers / Z3PS WTM-Blower-8 Mechanical Systems 2010 FS-BLO-2 FS-BLO-2, BLOWER #2, FILTER AIR SCOUR, BLOWER BLDG, WTP Blower Blower 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 5 20 Medium
WTM 21-Blowers / Z3PS WTM-Blower-9 Mechanical Systems 2010 FS-SIL-3 FS-SIL-3, FILTER AIR SCOUR BLOWER, EXHAUST SILENCER, EAST BLOWER EXTERIOR WALL, BLOWER BLDG, WTP Blower Blower 7 No Action Required Process/Facility Operates Normally
Without 1 3 12 Low
WTM 12-Pretreatment WTM-General Electrical-1
Electrical and Power
Systems 2010 2186 AF-LCP-2, LOCAL CONTROL PANEL, SAND HOPPER, WTP General Electrical Panel/Switch 7 Rehabilitation Reduced Efficiency 4 6 36 Med-High WTM 13-Ozone Contact + ICA WTM-General Electrical-10
Electrical and Power
Systems 2010 MCC-2M1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 14-Filters WTM-General Electrical-11
Electrical and Power
Systems 2009 FC-12 PLC 12, FILTER #2, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-12
Electrical and Power
Systems 2009 FCB-PLC Filter PLC General Electrical PLC 6 Replace or Run to
Failure Reduced Efficiency 2 8 64 High
WTM 14-Filters WTM-General Electrical-13
Electrical and Power
Systems 2009 PLC 13 PLC 13, FILTER #3, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-14
Electrical and Power
Systems 2009 PLC 14 PLC 14, FILTER #4, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-15
Electrical and Power
Systems 2009 PLC 15 PLC 15, FILTER #5, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-16
Electrical and Power
Systems 2009 PLC 16 PLC 16, FILTER #6, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-17
Electrical and Power
Systems 2009 PLC 17 PLC 17, FILTER #7, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-18
Electrical and Power
Systems 2009 PLC 18 PLC 18, FILTER #8, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-19
Electrical and Power
Systems 2009 PLC 19 PLC 19, FILTER #9, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 12-Pretreatment WTM-General Electrical-2
Electrical and Power
Systems 2010 PLC44 Actiflo General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 4 6 36 Med-High WTM 14-Filters WTM-General Electrical-20
Electrical and Power
Systems 2009 PLC 20 PLC 20, FILTER #10, FILTER CONTROL BLDG, WTP General Electrical PLC 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 7 56 Med-High
WTM 14-Filters WTM-General Electrical-21
Electrical and Power
Systems 2009 PLC11 Filter 1 General Electrical Other (General Electrical) 6 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 7 56 High
WTM 14-Filters WTM-General Electrical-22
Electrical and Power
Systems 2010 14ED-1 100A Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Reduced Capacity/Pressure 2 8 56 High
WTM 14-Filters WTM-General Electrical-23
Electrical and Power
Systems 2010 14ED-2 100A Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Reduced Capacity/Pressure 2 8 56 High
WTM 14-Filters WTM-General Electrical-24
Electrical and Power
Systems 2010 14MCC-1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 14-Filters WTM-General Electrical-25
Electrical and Power
Systems 2010 UPS-1 UNINTERRUPTIBLE POWER SUPPLY, FILTER CONTROL BLDG, WTP General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 14-Filters WTM-General Electrical-26
Electrical and Power
Systems 2010 UPS-2
UPS-2, UNINTERRRUPTIBLE POWER SUPPLY, FILTER CONTROL
BLDG, WTP General Electrical UPS 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 14-Filters WTM-General Electrical-27
Electrical and Power
Systems 2010 UPS-3
UPS-3, UNINTERRUPTIBLE POWER SUPPLY, FILTER CONTROL
BLDG, WTP General Electrical UPS 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 15-HLPS WTM-General Electrical-28
Electrical and Power
Systems 2009 PLC-52 PLC-52 General Electrical PLC 6 Rehabilitation Process/Facility Cannot Operate Without 2 9 54 High WTM 15-HLPS WTM-General Electrical-29
Electrical and Power
Systems 2009 PLC36 HighLift, General Electrical Other (General Electrical) 6 Rehabilitation Process/Facility Cannot Operate Without 4 9 54 High WTM 12-Pretreatment WTM-General Electrical-3
Electrical and Power
Systems 2010 UPS-Actiflo Uninterruptable Power Supply General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 15-HLPS WTM-General Electrical-30
Electrical and Power
Systems 2009 UPS-HighLift

UPS, UNINTERRUPTIBLE POWER SUPPLY, HIGH LIFT POWER
ROOM, WTP General Electrical UPS 1 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 15-HLPS WTM-General Electrical-31
Electrical and Power
Systems 2009 UPS-TWPS UPS-TWPS, UNINTERRUPTIBLE POWER SUPPLY, HLPS, WTP General Electrical UPS 1 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 15-HLPS WTM-General Electrical-32
Electrical and Power
Systems 2010 15DP-1 600A Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Reduced Capacity/Pressure 2 8 56 High
WTM 15-HLPS WTM-General Electrical-33
Electrical and Power
Systems 2010 DP-1 100A Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Reduced Capacity/Pressure 2 8 56 High
WTM 15-HLPS WTM-General Electrical-34
Electrical and Power
Systems 2010 M.V. Switchgear Main Power Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 5 9 63 High WTM 16-Chemicals WTM-General Electrical-35
Electrical and Power
Systems 2008 PLC45 Chem Building General Electrical Other (General Electrical) 5 Replace or Run to
Failure Process/Facility Cannot Operate Without 6 9 72 High WTM 16-Chemicals WTM-General Electrical-36
Electrical and Power
Systems 2010 CF-LCP-12
CF-LCP-12, CONTROL PANEL, ALUM FEED SYSTEMS, CHEM BLDG, WTP General Electrical Panel/Switch 7
Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-37
Electrical and Power
Systems 2010 CF-LCP-14
CF-LCP-14, CONTROL PANEL, FLUORIDE FEED SYSTEMS,
FLUORIDE ROOM, CHEM BLDG, WTP General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-38
Electrical and Power
Systems 2010 CF-LCP-4
CF-LCP-4, CONTROL PANEL, CLARIFIER POLY FEED SYSTEMS,
CHEM BLDG, WTP General Electrical Panel/Switch 7
Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-39
Electrical and Power
Systems 2010 CF-LCP-6
CF-LCP-6, CONTROL PANEL, CAUSTIC SODA FEED SYSTEMS
PUMPS 21 & 22, CHEM BLDG, WTP General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 13-Ozone Contact + ICA WTM-General Electrical-4
Electrical and Power
Systems 2006 13ATS-1 Automatic Transfer SWTCH General Electrical Panel/Switch 3 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 16-Chemicals WTM-General Electrical-40
Electrical and Power
Systems 2010 CF-LCP-7
CF-LCP-7, CONTROL PANEL, CAUSTIC SODA FEED SYSTEMS
PUMPS 23 & 24, CHEM BLDG, WTP General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-41
Electrical and Power
Systems 2010 FOLDER-240
CF-LCP-10, CONTROL PANEL, CATIONIC FILTER POLY FEED
SYSTEMS, CHEM BLDG, WTP General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-42
Electrical and Power
Systems 2010 LCP-12
CF-LCP-12, CONTROL PANEL, ALUM FEED SYSTEMS, CHEM BLDG, WTP General Electrical Panel/Switch 7
Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-43
Electrical and Power
Systems 2010 PLC47 Polyblend North General Electrical Other (General Electrical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 16-Chemicals WTM-General Electrical-44
Electrical and Power
Systems 2010 PLC48 Polyblend South General Electrical Other (General Electrical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 16-Chemicals WTM-General Electrical-45
Electrical and Power
Systems 2010 CS-LCP-1
CS-LCP-1, LOCAL CONTROL PANEL, BASIC SPILL CONTAINMENT
SUMP, CHEM SPILL CONTAINMENT, WTP General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-46
Electrical and Power
Systems 2010 CS-LCP-2 ACID Containment Sump Control Panel General Electrical Panel/Switch 7 Replace or Run to
Failure Process/Facility Cannot Operate Without 2 9 63 High WTM 16-Chemicals WTM-General Electrical-47
Electrical and Power
Systems 2010 16MCC-1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 16-Chemicals WTM-General Electrical-48
Electrical and Power
Systems 2010 UPS-Chem Uninterruptable Power Supply General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 17-Ozone Generation WTM-General Electrical-49
Electrical and Power
Systems 1990 PLC74 OzGen1 General Electrical Other (General Electrical) -13 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 6 48 High
WTM 13-Ozone Contact + ICA WTM-General Electrical-5
Electrical and Power
Systems 2006 13ED-1 250A Panel General Electrical Panel/Switch 3 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 17-Ozone Generation WTM-General Electrical-50
Electrical and Power
Systems 1990 PLC75 OzGen2 General Electrical Other (General Electrical) -13 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 6 48 High
WTM 17-Ozone Generation WTM-General Electrical-51
Electrical and Power
Systems 2010 OG-NBPNL-1
OG-NBPNL-1, LOCAL CONTROL PANEL, NITROGEN BOOST SKID,
OZONE GEN RM, WTP General Electrical Panel/Switch 7 Rehabilitation Process/Facility Cannot Operate Without 2 9 54 High WTM 17-Ozone Generation WTM-General Electrical-52
Electrical and Power
Systems 2010 PLC72 OzGen3 General Electrical Other (General Electrical) 7 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 6 48 High
WTM 17-Ozone Generation WTM-General Electrical-53
Electrical and Power
Systems 2010 PLC33 OzoneGen General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 4 7 42 Med-High WTM 17-Ozone Generation WTM-General Electrical-54
Electrical and Power
Systems 1990 OG-MEQ-1
OG-MEQ-1, OZONE GENERATOR 1 POWER SUPPLY & LCP,
OZONE GENERATOR ROOM, WTP General Electrical Other (General Electrical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 7 49 Med-High
WTM 17-Ozone Generation WTM-General Electrical-55
Electrical and Power
Systems 1990 OG-MEQ-2
OG-MEQ-2, OZONE GENERATOR 2 POWER SUPPLY & LCP,
OZONE GENERATOR ROOM, WTP General Electrical Other (General Electrical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 7 49 Med-High
WTM 17-Ozone Generation WTM-General Electrical-56
Electrical and Power
Systems 2010 OG-MEQ-3
OG-MEQ-3, OZONE GENERATOR 3 POWER SUPPLY & LCP,
OZONE GENERATOR ROOM, WTP General Electrical Other (General Electrical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 17-Ozone Generation WTM-General Electrical-57
Electrical and Power
Systems 2010 UPS-OzGen UPS Ozone Gen PLC General Electrical PLC 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-58
Electrical and Power
Systems 2010 UPS-Conf UPS CONFERENCE ROOM, WTP General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-59
Electrical and Power
Systems 2010 17 MCC-1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 13-Ozone Contact + ICA WTM-General Electrical-6
Electrical and Power
Systems 2006 13MCC-1 MCC General Electrical Motor Control Center 3 Replace or Run to
Failure Process/Facility Cannot Operate Without 10 9 90 High WTM 20-Operations Bldg WTM-General Electrical-60
Electrical and Power
Systems 2010 20DP-2 200A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 20-Operations Bldg WTM-General Electrical-61
Electrical and Power
Systems 2010 20DP-3 225A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 20-Operations Bldg WTM-General Electrical-62
Electrical and Power
Systems 2010 20ED-1 200A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 20-Operations Bldg WTM-General Electrical-63
Electrical and Power
Systems 2010 20MCC-1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 20-Operations Bldg WTM-General Electrical-64
Electrical and Power
Systems 2010 MCC-1EM1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 20-Operations Bldg WTM-General Electrical-65
Electrical and Power
Systems 2010 MCC-1M1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 20-Operations Bldg WTM-General Electrical-66
Electrical and Power
Systems 2010 UPS- MaintShop UPS - IT switch General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-67
Electrical and Power
Systems 2010 UPS-6106 UPS-6106-PAM General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-68
Electrical and Power
Systems 2010 UPS-6107 UPS-6107-RICK General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-69
Electrical and Power
Systems 2010 UPS-6108 UPS-6108-ROGER General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 13-Ozone Contact + ICA WTM-General Electrical-7
Electrical and Power
Systems 2010 DP-1 100A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 20-Operations Bldg WTM-General Electrical-70
Electrical and Power
Systems 2010 UPS-6109 UPS-6109-BILL BROWN General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-71
Electrical and Power
Systems 2010 UPS-6110 UPS-6110-JAMES General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-72
Electrical and Power
Systems 2010 UPS-6111 (1) UPS-6111-MAC (1) General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-73
Electrical and Power
Systems 2010 UPS-6111 (2) UPS-6111-MAC (2) General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-74
Electrical and Power
Systems 2010 UPS-6125 UPS-6125 -CHRIS General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-75
Electrical and Power
Systems 2010 UPS-6131 UPS OPS PC General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-76
Electrical and Power
Systems 2010 UPS-FrontDesk UPS-6104 General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-77
Electrical and Power
Systems 2010 UPS-LabScada UPS Lab Scada General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-General Electrical-78
Electrical and Power
Systems 2010 UPS-MGR UPS Managers Office General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 13-Ozone Contact + ICA WTM-General Electrical-8
Electrical and Power
Systems 2010 DP-2 100A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 21-Blowers / Z3PS WTM-General Electrical-80
Electrical and Power
Systems 2008 PLC42 Blower Zone3 PS General Electrical Other (General Electrical) 5 Rehabilitation Process/Facility Cannot Operate Without 4 9 54 High WTM 21-Blowers / Z3PS WTM-General Electrical-81
Electrical and Power
Systems 2010 21 MTS-1 Manual Transfer SWTCH General Electrical Panel/Switch 7 Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 21-Blowers / Z3PS WTM-General Electrical-82
Electrical and Power
Systems 2010 21MCC-1 MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 21-Blowers / Z3PS WTM-General Electrical-83
Electrical and Power
Systems 2010 21MCC-1A MCC General Electrical Motor Control Center 7 Rehabilitation Process/Facility Cannot Operate Without 6 9 54 High WTM 21-Blowers / Z3PS WTM-General Electrical-84
Electrical and Power
Systems 2010 UPS-Blower Uninterruptable Power Supply General Electrical UPS 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-85 Electrical and Power
Systems 2007 PLC46 Solids Handling General Electrical Other (General Electrical) 4 Rehabilitation Process/Facility Cannot Operate Without 4 9 54 High WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-86 Electrical and Power
Systems 2010 PLC31 Alarms General Electrical Other (General Electrical) 7 Replace or Run to
Failure Reduced Efficiency 3 7 63 Med-High
WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-87 Electrical and Power
Systems 2010 PLC10 PMaster General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 2 7 42 Med-High WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-88 Electrical and Power
Systems 2010 PLC254 CommMaster General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 2 7 42 Med-High WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-89 Electrical and Power
Systems 2010 PLC38 Gate General Electrical Other (General Electrical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 6 36 Med-High
WTM 13-Ozone Contact + ICA WTM-General Electrical-9
Electrical and Power
Systems 2010 DP-3 100A Panel General Electrical Panel/Switch 7 Rehabilitation Reduced Capacity/Pressure 2 8 48 High WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-90 Electrical and Power
Systems 2010 PLC40 Bridge Vault General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 4 7 42 Med-High WTM 60-Other-ELECT / CONTROLS WTM-General Electrical-91 Electrical and Power
Systems 2010 PLC80 Waterman REs General Electrical Other (General Electrical) 7 Rehabilitation Reduced Efficiency 4 7 42 Med-High WTM 11-Intake / LLPS WTM-General Electrical-92
Electrical and Power
Systems 2009 PLC41 Low Lift General Electrical Other (General Electrical) 6 Replace or Run to
Failure Reduced Efficiency 6 7 56 High
WTM 11-Intake / LLPS WTM-General Electrical-93
Electrical and Power
Systems 2009 UPS-LLPS UPS - LLPS, LLPS POWER BLDG, WTP General Electrical UPS 1 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 13-Ozone Contact + ICA WTM-Generator-1
Electrical and Power
Systems 2006 13-Gen-1 150 KW Generator Generator On-site Generator 8 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 6 36 Med-High
WTM 60-Other-ELECT WTM-Generator-2
Electrical and Power
Systems 2010 WTP-ED-1 WTP CAT 150 KW EM GEN, Stationary CATERPILLAR Generator On-site Generator 12 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 14-Filters WTM-HVAC-1 Mechanical Systems 2010 FS-AC-1 FS-AC-1, 2 TON HVAC, CARRIER, FILTER CONTROL BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 16-Chemicals WTM-HVAC-10 Mechanical Systems 2010 CF-EF-5 CF-EF-5, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-11 Mechanical Systems 2010 CF-EF-6 CF-EF-6, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-12 Mechanical Systems 2010 CF-EF-7 CF-EF-7, EXHAUST FAN, 600 CFM, FLUORIDE PUMP ROOM,

CHEM BLDG, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-13 Mechanical Systems 2010 CF-EF-8 CF-EF-8, EXHAUST FAN, 453 CFM, ELECTRICAL ROOM, CHEM

BLDG, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-14 Mechanical Systems 2010 CF-VF-1 CF-VF-1, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-HVAC-15 Mechanical Systems 2010 CF-VF-2 CF-VF-2, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-16 Mechanical Systems 2010 CF-VF-3 CF-VF-3, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-17 Mechanical Systems 2010 CF-VF-4 CF-VF-4, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-18 Mechanical Systems 2010 CF-VF-5 CF-VF-5, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-19 Mechanical Systems 2010 CF-VF-6 CF-VF-6, INTAKE VENTILATOR, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 14-Filters WTM-HVAC-2 Mechanical Systems 2010 FS-EF-1

EXHAUST FAN, FILTER GALLERY, LOCATED ON FILTER DECK

BEHIND FILTER CONTROL BLDG, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-HVAC-20 Mechanical Systems 1990 WTP-CU-1

HVAC, CONDENSER, TRANE, OZONE GENERATOR ROOM, OZONE

ROOF, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 17-Ozone Generation WTM-HVAC-21 Mechanical Systems 1990 WTP-CU-2

HVAC, CONDENSER, TRANE, OZONE GENERATOR POWER ROOM,

OZONE GENERATOR ROOF, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 17-Ozone Generation WTM-HVAC-22 Mechanical Systems 1990 WTP-EF-5

EXHAUST FAN, OZONE GENERATOR ROOM ROOF, OPS BLDG,
WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 4 28 Med-Low
WTM 17-Ozone Generation WTM-HVAC-23 Mechanical Systems 1990 WTP-EF-6 EXHAUST FAN, OZONE GENERATOR ROOM ROOF, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 4 28 Med-Low
WTM 18-EQ Basin + WW PS WTM-HVAC-24 Mechanical Systems 2010 WR-EF-1 EXHAUST FAN, 2400 CFM, Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 20-Operations Bldg WTM-HVAC-25 Mechanical Systems 1990 20-AHU-3-1 20-AHU-3-1, REFRIGERANT COIL, AIR HANDLER, 4700 CFM, R22,

MAINTENANCE SHOP, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 20-Operations Bldg WTM-HVAC-26 Mechanical Systems 1990 20-AHU-3-2 20-AHU-3-2, HVAC, TRANE, AIR HANDLER, OZONE GEN RM (LOC:

MAINT SHOP), WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 20-Operations Bldg WTM-HVAC-27 Mechanical Systems 1990 20-AHU-4 20-AHU-4, HVAC, AIR HANDLER, TRANE #10, 4700 CFM,

MAINTENANCE SHOP OFFICES, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 20-Operations Bldg WTM-HVAC-28 Mechanical Systems 2010 BOILER-1 20-B-1, BOILER, RAYPAK, OPERATIONS BLDG BASEMENT, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 20-Operations Bldg WTM-HVAC-29 Mechanical Systems 2010 20-AHU-1 20-AHU-1, HVAC, AIR HANDLER, TEMTROL, OPS BLDG ROOF,
WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 14-Filters WTM-HVAC-3 Mechanical Systems 2010 FS-HP-1 HEAT PUMP, 2 TON, FILTER CONTROL BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 20-Operations Bldg WTM-HVAC-30 Mechanical Systems 2010 BOILER-2 20-P-1, HEAT PUMP, BOILER, OPS BASEMENT, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 20-Operations Bldg WTM-HVAC-31 Mechanical Systems 2010 20-CU-1 HVAC, CONDENSER, MCQUAY, OPS BLDG ROOF, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 20-Operations Bldg WTM-HVAC-32 Mechanical Systems 2010 20-F-3 EXHAUST FAN, OPS BASEMENT, UNISEX RESTROOM, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 20-Operations Bldg WTM-HVAC-33 Mechanical Systems 1990 20-HP-1 20-HP-1, A/C, HVAC UNIT, OPS SERVER ROOM, OPS BASEMENT, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) -3
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 5 4 28 Med-High
WTM 20-Operations Bldg WTM-HVAC-34 Mechanical Systems 2010 SR-AC-1 SR-AC-1, AC UNIT COIL SERVER ROOM, OPS BASEMENT, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 20-Operations Bldg WTM-HVAC-35 Mechanical Systems 2010 SR-FC-1 SR-FC-1, HVAC, TITUS, FAN COIL, SAFETY RM, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 20-Operations Bldg WTM-HVAC-36 Mechanical Systems 2010 SR-FC-2 SR-FC-2, HVAC, TITUS, FAN COIL, CONFERENCE RM, (LOC: SAFETY

RM), WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 20-Operations Bldg WTM-HVAC-37 Mechanical Systems 2010 SR-FC-3 SR-FC-3, HVAC, TITUS, FAN COIL, CONFERENCE ROOM GALLEY, (LOC: SAFETY RM), WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 20-Operations Bldg WTM-HVAC-38 Mechanical Systems 2010 SR-FC-4 SR-FC-4, HVAC, TITUS, FAN COIL, RECORDS STORAGE, (LOC:

SAFETY RM), WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 20-Operations Bldg WTM-HVAC-39 Mechanical Systems 2010 WTP-EF-1 EXHAUST FAN, OPS RESTROOMS, OPS BUILDING, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 14-Filters WTM-HVAC-4 Mechanical Systems 2010 FS-SF-1 FS-SF-1, SUPPLY FAN, FILTER GALLERY, LOCATED ON FILTER DECK

BEHIND FILTER CONTROL BLDG, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 20-Operations Bldg WTM-HVAC-40 Mechanical Systems 2010 WTP-FC-1 A/C, HVAC, FAN COIL, ICP, SERVER RM, (LOC: BOILER RM), OPS

BASEMENT, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 21-Blowers / Z3PS WTM-HVAC-41 Mechanical Systems 2010 Z3-EF-4 EXHAUST FAN, FILTER AIR SCOUR BLOWER RM, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 21-Blowers / Z3PS WTM-HVAC-42 Mechanical Systems 2010 Z3-EF-5 EXHAUST FAN, FILTER AIR SCOUR BLOWER RM, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 00-Misc Systems WTM-HVAC-43 Mechanical Systems 2010 HVAC-40

HVAC UNIT, MINI SPLIT, CANAL INTAKE WATER QUALITY SHACK, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 11-Intake / LLPS WTM-HVAC-44 Mechanical Systems 2016 HVAC-53 CTO-AC-1, HVAC Unit, DUCTLESS SPLIT, WATER QUALITY SHACK,

CANAL TURNOUT, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 23 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 11-Intake / LLPS WTM-HVAC-45 Mechanical Systems 2010 EL-AC-1 CARRIER HVAC, LLPS POWER BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation Reduced Efficiency 4 5 30 Med-High WTM 12-Pretreatment WTM-HVAC-46 Mechanical Systems 2010 AF-EF-1 AF-EF-1, EXHAUST FAN, SAND PUMP ROOM, 300 CFM, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 No Action Required
Process/Facility Operates Normally
Without 1 3 12 Low
WTM 15-HLPS WTM-HVAC-5 Mechanical Systems 2010 HL-AC-1
AC UNIT, 10 TON, 120000 BTUH, 4000 CFM, HLPS POWER ROOM

ROOF, WTP
Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 4 3 18 Med-Low
WTM 16-Chemicals WTM-HVAC-6 Mechanical Systems 2010 CF-EF-1 CF-EF-1, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-7 Mechanical Systems 2010 CF-EF-2 CF-EF-2, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-8 Mechanical Systems 2010 CF-EF-3 CF-EF-3, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-HVAC-9 Mechanical Systems 2010 CF-EF-4 CF-EF-4, EXHAUST FAN, 2400 CFM, CHEM BLDG, WTP Heating, Ventilation, and
Cooling Systems Other (HVAC) 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 11-Intake / LLPS WTM-Field Instruments-1
Instrumentation and
Controls 1985 PSH-511
PSH-511, HIGH PRESSURE SWITCH, PUMP 1 DISCHARGE, LLPS,
WTP Field Instruments Pressure -23 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 11-Intake / LLPS WTM-Field Instruments-10
Instrumentation and
Controls 2016 CNL-AIT-100
CNL-AIT-100, CANAL TURBIDITY TRANSMITTER, SC200, CANAL
SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 14-Filters WTM-Field Instruments-100
Instrumentation and
Controls 2009 PIT-677
PIT-677, HEAD LOSS TRANSMITTER, FILTER 7, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-101
Instrumentation and
Controls 2009 PIT-687
PIT-687, HEAD LOSS TRANSMITTER FILTER 8, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-102
Instrumentation and
Controls 2009 PIT-697
PIT-697, HEADLOSS TRANSMITTER, FILTER 9, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-103
Instrumentation and
Controls 2015 LI-600 LI-600, RADAR LEVEL DETECTOR, FILTER 10, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-104
Instrumentation and
Controls 2015 LI-630 LI-630, RADAR LEVEL INDICATOR, FILTER 3, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-105
Instrumentation and
Controls 2015 LI-640 LI-640, RADAR LEVEL INDICATOR, FILTER 4, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-106
Instrumentation and
Controls 2015 LI-650a LI-650a, RADAR LEVEL INDICATOR, FILTER 5, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-107
Instrumentation and
Controls 2015 LI-660 LI-660, RADAR LEVEL DETECTOR, FILTER 6, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-108
Instrumentation and
Controls 2015 LI-670 LI-670, RADAR LEVEL DETECTOR, FILTER 7, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-109
Instrumentation and
Controls 2015 LI-680a LI-680a, RADAR LEVEL DETECTOR, FILTER 8, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-11
Instrumentation and
Controls 2016 CNL-AIT-101
CNL-AIT-101, CANAL TURBIDITY ANALYZER, TU5300, CANAL
SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 14-Filters WTM-Field Instruments-110
Instrumentation and
Controls 2015 LI-690 LI-690, RADAR LEVEL DETECTOR, FILTER 9, FITLER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-111
Instrumentation and
Controls 2015 LT-610 LT-610, RADAR LEVEL DETECTOR, FILTER 1, FILTER DECK, WTP Field Instruments Level Element 7 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-112
Instrumentation and
Controls 2018 FIT-784 FIT-784, BACKWASH FLOWMETER, FILTER GALLERY, WTP Field Instruments Flow 10 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-113
Instrumentation and
Controls 2021 AIT-718 DISSOLVED OZONE ANALYZER - FILTER GALLERY, Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 13
Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low
WTM 14-Filters WTM-Field Instruments-114
Instrumentation and
Controls 2010 WTP-SCA-1
Streaming Current ANALYZER, APPLIED WATER CONDUIT,
FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 15-HLPS WTM-Field Instruments-115
Instrumentation and
Controls 2009 FIT-635 PLANT EFFLUENT FLOW METER, E & H, MAGNETIC, HLPS, WTP Field Instruments Flow 1 Rehabilitation Process/Facility Cannot Operate Without 2 6 36 Med-High WTM 15-HLPS WTM-Field Instruments-116
Instrumentation and
Controls 2018 AE/AIT-700x
AE/AIT-700x, ANALYZER, CHLORINE (FINISHED), PH, TEMP,
HLPS, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-117
Instrumentation and
Controls 2018 AE/AIT-701 FLUORIDE Analyzer (FINISHED) HLPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-118
Instrumentation and
Controls 2018 AE/AIT-704x AE/AIT-704x, ANALYZER, CHLORINE (CFE), PH, TEMP, HLPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-119
Instrumentation and
Controls 2018 AE/AIT-705 AE/AIT-705, ANALYZER, FLUORIDE (CFE), HLPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 11-Intake / LLPS WTM-Field Instruments-12
Instrumentation and
Controls 2016 CNL-AIT-102
CNL-AIT-102, CANAL MULTI CHANNEL TRANSMITTER, CANAL
SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 15-HLPS WTM-Field Instruments-120
Instrumentation and
Controls 2018 AE-703 TURBIDITY (Finished) Analyzer Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-121
Instrumentation and
Controls 2018 AE-707 TURBIDITY (CFE) ANALYZER HLPS Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-122
Instrumentation and
Controls 2018 AIT-703 AIT-703, TRANSMITTER, TURBIDIY, FINISHED WATER, HLPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-123
Instrumentation and
Controls 2018 AIT-707 CFE TURBIDITY HLPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 10 No Action Required Process/Facility Cannot Operate Without 1 6 24 Med-High WTM 15-HLPS WTM-Field Instruments-124
Instrumentation and
Controls 1985 LIT-711 LIT-711, LEVEL TRANSMITTER, HLPS CLEAR WELL, HLPS, WTP Field Instruments Level Element -23 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 16-Chemicals WTM-Field Instruments-125
Instrumentation and
Controls 2010 1777 PRESSURE GAUGE, 0-800 PSI, FROM CO2 VAPORIZER, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 16-Chemicals WTM-Field Instruments-126
Instrumentation and
Controls 2010 CO2-G-1
CO2 PRESSURE GAUGE, 0-100 PSI, PRE FLOW CONTROL VALVE,
WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-127
Instrumentation and
Controls 2010 FIT-286
FIT-286, FLOW METER, CLARIFIER POLY TO LLPS, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-128
Instrumentation and
Controls 2010 FIT-830

FLUORIDE FLOW TRANSMITTER, POST FILTRATION, FLUORIDE
ROOM, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-129
Instrumentation and
Controls 2010 FIT-914
FIT-914, FLOW METER TRANSMITTER, ANIONIC FLOC AID POLY
TO LLPS, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-13
Instrumentation and
Controls 2016 Instruments-356
CNL-AIT-200, BRIDGE TURBIDITY TRANSMITTER, SC200, CANAL SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-130
Instrumentation and
Controls 2010 FIT-915
FIT-915, FLOW METER TRANSMITTER, ANIONIC FLOC POLY AID
TO AF BASIN 1, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-131
Instrumentation and
Controls 2010 FIT-916
FIT-916, FLOW METER TRANSMITTER, ANIONIC FLOC POLY AID
TO AF BASIN 2, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-132
Instrumentation and
Controls 2010 FIT-923A
FIT-923A, FLOW METER TRANSMITTER, ALUM FLOW TO FLASH
MIX, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-133
Instrumentation and
Controls 2010 FIT-923B

FLOW METER TRANSMITTER, ALUM FLOW TO FLASH MIX, CHEM
BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-134
Instrumentation and
Controls 2010 FIT-924A
FIT-924A, FLOW METER TRANSMITTER, ALUM FLOW TO AF
BASIN 1, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-Field Instruments-135
Instrumentation and
Controls 2010 FIT-924B
FIT-924B, FLOW METER TRANSMITTER, ALUM FLOW TO AF
BASIN 2, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-136
Instrumentation and
Controls 2010 FIT-938
FIT-938, FLOW METER TRANSMITTER, CATIONIC FILTER AID POLY TO ICA, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-137
Instrumentation and
Controls 2010 FIT-CO2
FIT-CO2, CO2 CORIOLIS FLOW METER, CO2 FLOW CONTROL
CABINET, CO2 STORAGE AREA, WTP Field Instruments Flow 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-138
Instrumentation and
Controls 2010 FSH-844
HIGH FLOW SWITCH, CAUSTIC TANK 1 TO METERING PUMPS,
SOUTH TANK FARM, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-139
Instrumentation and
Controls 2010 FSH-845
HIGH FLOW SWITCH, CAUSTIC TANK 2 TO METERING PUMPS,
SOUTH TANK FARM, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-14
Instrumentation and
Controls 2016 CNL-AIT-201
CNL-AIT-201, BRIDGE TURBIDITY ANALYZER, TU5300, CANAL
SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-140
Instrumentation and
Controls 2010 FSH-848
HIGH FLOW SWITCH, TRANSFER SIDE, ALUM BST 3, NORTH TANK FARM Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-141
Instrumentation and
Controls 2010 FSH-849 FLOW SWITCH HIGH, CAT POLY FEED, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-142
Instrumentation and
Controls 2010 FSH-854
HIGH FLOW SWITCH, CAUSTIC TANK 1 TO MIX/TRANSFER PUMP,
SOUTH CHEM TANK FARM, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-143
Instrumentation and
Controls 2010 FSH-855
HIGH FLOW SWITCH, CAUSTIC TANK 2 TO MIX/TRANSFER PUMP,
SOUTH CHEM TANK FARM, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-144
Instrumentation and
Controls 2010 FSL-900

LOW FLOW SWITCH, ANIONIC FLOC AID POLY, TRANSFER PUMP
DISCHARGE, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-145
Instrumentation and
Controls 2010 FSL-900x

LOW FLOW SWITCH, PROGRESSIVE CAVITY PUMP DISCHARGE,
SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-146
Instrumentation and
Controls 2010 FSL-941

LOW FLOW SWITCH, PROGRESSIVE CAVITY PUMP DISCHARGE,
NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-147
Instrumentation and
Controls 2010 LE-904 LE-904, LEVEL, MIX TANK, SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-148
Instrumentation and
Controls 2010 LE-906
LE-906, LEVEL, FEED TANK, SOUTH POLYBLEND, CHEM BLDG,
WTP Field Instruments Level Element 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-149
Instrumentation and
Controls 2010 LE-945
LE-945, LEVEL, MIX TANK, NORTH POLYBLEND, CHEM BLDG,
WTP Field Instruments Level Element 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-15
Instrumentation and
Controls 2016 CNL-AIT-202
CNL-AIT-202, BRIDGE MULTI CHANNEL TRANSMITTER, CANAL
SHACK, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-150
Instrumentation and
Controls 2010 LE-947
LE-947, LEVEL, FEED TANK, NORTH POLYBLEND, CHEM BLDG,
WTP Field Instruments Level Element 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-151
Instrumentation and
Controls 2010 LI-906B South PolyBlend Feed Tank Level Sight Glass, Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-152
Instrumentation and
Controls 2010 LI-945B South Polyblend Mix Tank Level Sight Glass, Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-153
Instrumentation and
Controls 2010 LI-947B
LI-947B, LEVEL INDICATOR, SIGHT GLASS, FEED TANK, NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-154
Instrumentation and
Controls 2010 LIT-100A
LIT-100A, CO2 TANK LEVEL TRANSMITTER, CO2 STORAGE AREA, WTP Field Instruments Level Element 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-155
Instrumentation and
Controls 2010 LSH-904
LSH-904, HIGH LEVEL SWITCH, MIX TANK, SOUTH POLYBLEND,
CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-156
Instrumentation and
Controls 2010 LSH-906
LSH-906, HIGH LEVEL SWITCH, FEED TANK, SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-157
Instrumentation and
Controls 2010 LSH-945
LSH-945, HIGH LEVEL SWITCH, MIX TANK, NORTH POLYBLEND,
CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-158
Instrumentation and
Controls 2010 LSH-947
LSH-947, HIGH LEVEL SWITCH, FEED TANK, NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-159
Instrumentation and
Controls 2010 LSHH-904
LSHH-904, HIGH HIGH LEVEL SWITCH, MIX TANK, SOUTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-16
Instrumentation and
Controls 2016 CNL-FIT-100
CNL-FIT-100, CANAL SHACK FLOW METER, INLINE MAGNETIC,
CANAL TURNOUT, WTP Field Instruments Flow 8 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-160
Instrumentation and
Controls 2010 LSHH-945
LSHH-945, HIGH HIGH LEVEL SWITCH, MIX TANK, NORTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-161
Instrumentation and
Controls 2010 LSHH-947
LSHH-947, HIGH HIGH LEVEL SWITCH, FEED TANK, NORTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-162
Instrumentation and
Controls 2010 LSL-902
LSL-902, LOW LEVEL SWITCH, DRY POLY HOPPER, SOUTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-163
Instrumentation and
Controls 2010 LSL-904
LSL-904, LOW LEVEL SWITCH, MIX TANK, SOUTH POLYBLEND,
CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-164
Instrumentation and
Controls 2010 LSL-943
LSL-943, LOW LEVEL SWITCH, DRY POLY HOPPER, NORTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-165
Instrumentation and
Controls 2010 LSL-945
LSL-945, LOW LEVEL SWITCH, MIX TANK, NORTH POLYBLEND,
CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-166
Instrumentation and
Controls 2010 LSL-947
LSL-947, LOW LEVEL SWITCH, FEED TANK, NORTH POLYBLEND,
CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-167
Instrumentation and
Controls 2010 LSLL-906
LSLL-906, LOW LOW LEVEL SWITCH, FEED TANK, SOUTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-168
Instrumentation and
Controls 2010 LSLL-947
LSLL-947, LOW LOW LEVEL SWITCH, MIX TANK, NORTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-169
Instrumentation and
Controls 2010 LT- 795
RADAR LEVEL DETECTOR, FLUORIDE TANK 2, NORTH TANK
FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 11-Intake / LLPS WTM-Field Instruments-17
Instrumentation and
Controls 2016 CNL-FIT-200
CNL-FIT-200, CANAL SHACK FLOW METER, INLINE MAGNETIC,
CANAL TURNOUT, WTP Field Instruments Flow 8 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-170
Instrumentation and
Controls 2010 LT-788
LT-788, ULTRASONIC LEVEL DETECTOR, HYPO TANK 1, SOUTH
TANK FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-Field Instruments-171
Instrumentation and
Controls 2010 LT-789
LT-789, ULTRASONIC LEVEL DETECTOR, HYPO TANK 2, SOUTH
TANK FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-172
Instrumentation and
Controls 2010 LT-794
ULTRASONIC LEVEL DETECTOR, FLUORIDE TANK 1, NORTH TANK
FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-173
Instrumentation and
Controls 2010 LT-802
RADAR LEVEL DETECTOR, CAUSTIC TANK 1, SOUTH TANK FARM,
WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-174
Instrumentation and
Controls 2010 LT-803
ULTRASONIC LEVEL DETECTOR, CAUSTIC TANK 2, SOUTH TANK
FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-175
Instrumentation and
Controls 2010 LT-808

ULTRASONIC LEVEL DETECTOR, TRANSMITTER, ALUMINUM
CHLORIDE TANK 1, NORTH TANK FARM, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-176
Instrumentation and
Controls 2010 LT-809
LEVEL TRANSMITTER, RADAR, ALUM TANK 2, NORTH TANK
FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-177
Instrumentation and
Controls 2010 LT-810
ULTRASONIC LEVEL DETECTOR, ALUM TANK 3, NORTH TANK
FARM, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-178
Instrumentation and
Controls 2010 LT-932

TRANSMITTER, LEVEL, CATIONIC FILTER POLY AID TANK, CHEM BLDG, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-179
Instrumentation and
Controls 2010 LT-976
LT-976, ELECTRONIC LEVEL (ULTRASONIC), NON-IONIC FILTER POLY AID TANK 1, POLYBLEND ROOM, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 11-Intake / LLPS WTM-Field Instruments-18
Instrumentation and
Controls 2010 LI- 510 LI-510, LEVEL INDICATOR, SUMP LEVEL, ULTRASONIC, LLPS, WTP Field Instruments Level Element 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-180
Instrumentation and
Controls 2010 LT-978
LT-978, ELECTRONIC LEVEL (ULTRASONIC), NON-IONIC FILTER POLY, MIX TANK 2, POLYBLEND ROOM, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 16-Chemicals WTM-Field Instruments-181
Instrumentation and
Controls 2010 PDI-944
PDI-944, PRESSURE DIFF GUAGE, UTILITY WATER, MIXING TANK INFLUENT, NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-182
Instrumentation and
Controls 2010 PDSH-903
PDSH-903, HIGH PRESSURE DIFF SWITCH, UTILITY WATER,
MIXING TANK INFLUENT, SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-183
Instrumentation and
Controls 2010 PDSH-944
PDSH-944, HIGH PRESSURE DIFF SWITCH, UTILITY WATER,
MIXING TANK INFLUENT, NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-184
Instrumentation and
Controls 2010 PI-790

LOW PRESSURE INDICATOR GUAGE, PUMP SUCTION UTILITY
WATER, HYPO MIX-TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-185
Instrumentation and
Controls 2010 PI-791A

LOW PRESSURE GUAGE, PUMP SUCTION, HYPO MIX-TRANSFER
PUMP, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-186
Instrumentation and
Controls 2010 PI-791B

LOW PRESSURE INDICATOR GAUGE, PUMP DISCHARGE, HYPO
MIX-TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-187
Instrumentation and
Controls 2010 PI-804

PRESSURE GAUGE, UTILITY WATER, PUMP SUCTION, CAUSTIC
MIX-TRANSFER PUMP, SOUTH CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-188
Instrumentation and
Controls 2010 PI-805A
PI-805A, LOW PRESSURE INDICATOR GUAGE, PUMP SUCTION,
CAUSTIC MIX-TRANSFER PUMP, SOUTH CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-189
Instrumentation and
Controls 2010 PI-805B

LOW PRESSURE INDICATOR GUAGE, PUMP DISCHARGE, CAUSTIC
MIX-TRANSFER PUMP, SOUTH CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-19
Instrumentation and
Controls 2010 LSLL-509 LSLL-509, LOW LEVEL SWITCH, LLPS SUMP, WTP Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 16-Chemicals WTM-Field Instruments-190
Instrumentation and
Controls 2010 PI-811

GUAGE, SUCTION PRESSURE INDICATOR, CHASE WATER SUPPLY,
ALUM MIX/TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-191
Instrumentation and
Controls 2010 PI-812A

GUAGE, SUCTION PRESSURE INDICATOR, ALUM MIX/TRANSFER
PUMP, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-192
Instrumentation and
Controls 2010 PI-812B

GUAGE, DISCHARGE PRESSURE INDICATOR, ALUM
MIX/TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-193
Instrumentation and
Controls 2010 PI-817
PRESSURE INDICATOR GUAGE, HYPO METERING PUMP 1
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-194
Instrumentation and
Controls 2010 PI-818
PRESSURE INDICATOR GUAGE, HYPO METERING PUMP 2
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-195
Instrumentation and
Controls 2010 PI-819
PRESSURE INDICATOR GUAGE, HYPO METERING PUMP 3
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-196
Instrumentation and
Controls 2010 PI-826
PRESSURE INDICATOR GUAGE, FLUORIDE METERING PUMP 1
DISCHARGE, FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-197
Instrumentation and
Controls 2010 PI-827
PRESSURE INDICATOR GUAGE, FLUORIDE METERING PUMP 2
DISCHARGE, FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-198
Instrumentation and
Controls 2010 PI-832
PRESSURE GAUGE, CAUSTIC FEED PUMP 1 DISCHARGE, FILTERED WATER, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-199
Instrumentation and
Controls 2010 PI-833
PRESSURE GUAGE, CAUSTIC FEED PUMP 2 DISCHARGE, FILTERED WATER, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-2
Instrumentation and
Controls 1985 PSH-512
PSH-512, HIGH PRESSURE SWITCH, PUMP 2 DISCHARGE, LLPS,
WTP Field Instruments Pressure -23 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 11-Intake / LLPS WTM-Field Instruments-20
Instrumentation and
Controls 2010 PI 511 PI 511, PUMP 1 DISCHARGE PRESSURE GAUGE, LLPS, WTP Field Instruments Pressure 2 No Action Required Process/Facility Operates Normally
Without 1 2 8 Low
WTM 16-Chemicals WTM-Field Instruments-200
Instrumentation and
Controls 2010 PI-834
PRESSURE GUAGE, CAUSTIC FEED PUMP 3 DISCHARGE, UP
FRONT CAUSTIC, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-201
Instrumentation and
Controls 2010 PI-835
PRESSURE GUAGE, CAUSTIC FEED PUMP 4 DISCHARGE, UP
FRONT CAUSTIC, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-202
Instrumentation and
Controls 2010 PI-900

PRESSURE GUAGE, PROGRESSIVE CAVITY PUMP DISCHARGE,
SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-203
Instrumentation and
Controls 2010 PI-901

PRESSURE GUAGE, AIR COMPRESSOR HEADER, SOUTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-Field Instruments-204
Instrumentation and
Controls 2010 PI-902

PRESSURE GAUGE, ANIONIC FLOC AID POLY, TRANSFER PUMP
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-205
Instrumentation and
Controls 2010 PI-910
PRESSURE GUAGE, ANIONIC FLOC AID POLY PUMP 1 DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-206
Instrumentation and
Controls 2010 PI-911
PRESSURE GUAGE, ANIONIC FLOC AID PUMP 2 DISCHARGE,
CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-207
Instrumentation and
Controls 2010 PI-912
PRESSURE GUAGE, ANIONIC FLOC AID PUMP 3 DISCHARGE,
CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-208
Instrumentation and
Controls 2010 PI-919
PRESSURE GUAGE, ALUM FEED PUMP 1 DISCHARGE, CHEM
BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-209
Instrumentation and
Controls 2010 PI-920
PRESSURE GAUGE, ALUM FEED PUMP 2 DISCHARGE, CHEM
BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-21
Instrumentation and
Controls 2010 PI-514 PI 514, PUMP 4 DISCHARGE PRESSURE GUAGE, LLPS, WTP Field Instruments Pressure 2 No Action Required Process/Facility Operates Normally
Without 1 2 8 Low
WTM 16-Chemicals WTM-Field Instruments-210
Instrumentation and
Controls 2010 PI-921
PRESSURE GUAGE, ALUM FEED PUMP 3 DISCHARGE, CHEM
BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-211
Instrumentation and
Controls 2010 PI-935
PRESSURE GAUGE, CATIONIC FILTER AID POLY PUMP 1
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-212
Instrumentation and
Controls 2010 PI-936
PRESSURE GUAGE, CATIONIC FILTER AID POLY PUMP 2
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-213
Instrumentation and
Controls 2010 PI-941

PRESSURE GUAGE, PROGRESSIVE CAVITY PUMP DISCHARGE,
NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-214
Instrumentation and
Controls 2010 PI-942

PRESSURE GUAGE, AIR COMPRESSOR HEADER, NORTH
POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-215
Instrumentation and
Controls 2010 PI-951
PRESSURE GUAGE, CLARIFIER POLY FEED PUMP 1 DISCHARGE,
CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-216
Instrumentation and
Controls 2010 PIT-100A CO2 TANK PRESSURE TRANSMITTER, CO2 STORAGE AREA, WTP Field Instruments Pressure 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-217
Instrumentation and
Controls 2010 PSH 826
PSH-826, HIGH PRESSURE SWITCH, FLUORIDE METERING PUMP
1 DISCHARGE, FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-218
Instrumentation and
Controls 2010 PSH-791
PSH-791, HIGH PRESSURE SWITCH, PUMP DISCHARGE, HYPO
MIX-TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-219
Instrumentation and
Controls 2010 PSH-805
PSH-805, HIGH PRESSURE SWITCH, PUMP DISCHARGE, CAUSTIC
MIX-TRANSFER PUMP, SOUTH CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-22
Instrumentation and
Controls 2010 PI-512 PI-512, PUMP 2 DISCHARGE PRESSURE GAUGE, LLPS, WTP Field Instruments Pressure 2 No Action Required Process/Facility Operates Normally
Without 1 2 8 Low
WTM 16-Chemicals WTM-Field Instruments-220
Instrumentation and
Controls 2010 PSH-812
PSH-812, GUAGE, HIGH DISCHARGE PRESSURE SWITCH, ALUM
MIX/TRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-221
Instrumentation and
Controls 2010 PSH-817
PSH-817, HIGH PRESSURE SWITCH, HYPO METERING PUMP 1
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-222
Instrumentation and
Controls 2010 PSH-818
PSH-818, HIGH PRESSURE SWITCH, HYPO METERING PUMP 2
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-223
Instrumentation and
Controls 2010 PSH-819
PSH-819, HIGH PRESSURE SWITCH, HYPOCHLORITE METERING
PUMP 3 DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-224
Instrumentation and
Controls 2010 PSH-827
PSH-827, HIGH PRESSURE SWITCH, FLUORIDE METERING PUMP
2 DISCHARGE, FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-225
Instrumentation and
Controls 2010 PSH-832
PSH-832, HIGH PRESSURE SWITCH, CAUSTIC METERING PUMP 1
DISCHARGE, FILTERED WATER, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-226
Instrumentation and
Controls 2010 PSH-833
PSH-833, HIGH PRESSURE SWITCH, CAUSTIC METERING PUMP 2
DISCHARGE, FILTERED WATER, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-227
Instrumentation and
Controls 2010 PSH-834
PSH-834, HIGH PRESSURE SWITCH, CAUSTIC METERING PUMP 3
DISCHARGE, UP FRONT CAUSTIC, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-228
Instrumentation and
Controls 2010 PSH-835
HIGH PRESSURE SWITCH, CAUSTIC METERING PUMP 4
DISCHARGE, UP FRONT CAUSTIC Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-229
Instrumentation and
Controls 2010 PSH-910
PSH-910, HIGH DISCHARGE PRESSURE SWITCH, ANIONIC FLOC
AID POLY METERING PUMP 1, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-23
Instrumentation and
Controls 2010 PI-513 PI-513, PRESSURE GUAGE, PUMP 3 DISCHARGE, LLPS, WTP Field Instruments Pressure 2 No Action Required Process/Facility Operates Normally
Without 1 2 8 Low
WTM 16-Chemicals WTM-Field Instruments-230
Instrumentation and
Controls 2010 PSH-910x
PSH-910x, HIGH PRESSURE SWITCH, ANIONIC FLOC AID POLY
PUMP 1 DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-231
Instrumentation and
Controls 2010 PSH-911
PSH 911, HIGH DISCHARGE PRESSURE SWITCH, ANIONIC FLOC
AID POLY METERING PUMP 2, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-232
Instrumentation and
Controls 2010 PSH-912
PSH 912, HIGH DISCHARGE PRESSURE SWITCH, ANIONIC FLOC
AID POLY METERING PUMP 3, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-233
Instrumentation and
Controls 2010 PSH-919
PSH-919, HIGH PRESSURE SWITCH, ALUM METERING PUMP 1
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-234
Instrumentation and
Controls 2010 PSH-920
PSH-920, HIGH PRESSURE SWITCH, ALUM METERING PUMP 2
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-235
Instrumentation and
Controls 2010 PSH-921
PSH-921, HIGH PRESSURE SWITCH, ALUM METERING PUMP 3
DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-236
Instrumentation and
Controls 2010 PSH-935
PSH-935, HIGH DISCHARGE PRESSURE SWITCH, CATIONIC FILTER AID POLY METERING PUMP 1, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-237
Instrumentation and
Controls 2010 PSH-936
PSH-936, HIGH DISCHARGE PRESSURE SWITCH, CATIONIC FILTER AID POLY METERING PUMP 2, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-238
Instrumentation and
Controls 2010 PSH-951
PSH-951, PRESSURE SWITCH HIGH, CLARIFIER POLY METERING
PUMP 1 DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-239
Instrumentation and
Controls 2010 PSH-952
PSH-952PRESSURE SWITCH HIGH, CLARIFIER POLY METERING
PUMP 2 DISCHARGE, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-24
Instrumentation and
Controls 2016 CNL-AIT-106 CANAL UV254 ANALYZER,, CANAL SHACK WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-Field Instruments-240
Instrumentation and
Controls 2010 PSHL-901
PSHL-901, HIGH/LOW PRESSURE SWITCH, AIR COMPRESSOR
RECEIVER, SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-241
Instrumentation and
Controls 2010 PSHL-942

PSHL, HIGH/LOW PRESSURE SWITCH, AIR COMPRESSOR
RECEIVER, NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-242
Instrumentation and
Controls 2010 PSL-791
PSL-791, LOW PRESSURE SWITCH, PUMP SUCTION, HYPO MIXTRANSFER PUMP, CHEM BLDG, WTP Field Instruments Pressure 2Replace or Run to Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-243
Instrumentation and
Controls 2010 PSL-805
PSL-805, LOW PRESSURE SWITCH, PUMP SUCTION, CAUSTIC MIXTRANSFER PUMP, SOUTH CHEM BLDG, WTP Field Instruments Pressure 2Replace or Run to Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-244
Instrumentation and
Controls 2010 PSL-812
PSL-812, LOW SUCTION PRESSURE SWITCH, ALUM
MIX/TRANSFER PUMP, CHEM FEED BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-245
Instrumentation and
Controls 2010 PSL-901
PSL-901, LOW PRESSURE SWITCH, AIR COMPRESSOR HEADER,
SOUTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-246
Instrumentation and
Controls 2010 PSL-909
PSL-909, LOW PRESSURE SWITCH, ANIONIC FLOC AID POLY SKID, CHEM BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-247
Instrumentation and
Controls 2010 PSL-918
PSL-918, LOW PRESSURE SWITCH, ALUM METERING PUMP SKID
SUCTION HEADER, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-248
Instrumentation and
Controls 2010 PSL-934
PSL-934, LOW PRESSURE SWITCH, CATIONIC POLYMER, PEC,
METERING PUMP SKID SUCTION, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-249
Instrumentation and
Controls 2010 PSL-942
PSL-942, LOW PRESSURE SWITCH, AIR COMPRESSOR HEADER,
NORTH POLYBLEND, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 11-Intake / LLPS WTM-Field Instruments-25
Instrumentation and
Controls 2016 CNL-AIT-206 BRIDGE COPPER ANALYZER, CANAL SHACK Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 16-Chemicals WTM-Field Instruments-250
Instrumentation and
Controls 2010 PSL-950
PSL-950, LOW PRESSURE SWITCH, CLARIFIER POLY FEED PUMP, SUCTION HEADER, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-251
Instrumentation and
Controls 2010 SWITCH-14
FSH-958A, HIGH FLOW SWITCH, CS-EW-1 EYEWASH, ACID CHEM
OFFLOAD, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-252
Instrumentation and
Controls 2010 Switch-15
FSH-958B, HIGH FLOW SWITCH, CS-EW-2 EYEWASH, ACID TANK
FARM, WEST END, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-253
Instrumentation and
Controls 2010 Switch-16
FSH-958C, HIGH FLOW SWITCH, CS-EW-3 EYEWASH, ACID TANK
FARM, EAST END, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-254
Instrumentation and
Controls 2010 Switch-18
FSH-958E, HIGH FLOW SWITCH, CS-EW-5 EYEWASH, BASE TANK
FARM, EAST END, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-255
Instrumentation and
Controls 2010 Switch-19
FSH-958F, HIGH FLOW SWITCH, CS-EW-6 EYEWASH, BASE CHEM
OFFLOAD, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-256
Instrumentation and
Controls 2010 Switch-20
FSH-959A, HIGH FLOW SWITCH, CF-EW-1 EYEWASH, POLYBLEND
ROOM, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-257
Instrumentation and
Controls 2010 Switch-21
FSH-959B, HIGH FLOW SWITCH, CF-EW-2 EYEWASH, ACID CHEM
PUMP AREA, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-258
Instrumentation and
Controls 2010 Switch-22
FSH-959C, HIGH FLOW SWITCH, CF-EW-3 EYEWASH, BASE CHEM
PUMP AREA, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-259
Instrumentation and
Controls 2010 Switch-23
FSH-959D, HIGH FLOW SWITCH, CF-EW-4 EYEWASH, FLUORIDE
CHEM PUMP ROOM, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 12-Pretreatment WTM-Field Instruments-26
Instrumentation and
Controls 2010 904 FLOW SWITCH, POLY AID, WEST ACTIFLO, WTP Field Instruments Flow 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 16-Chemicals WTM-Field Instruments-260
Instrumentation and
Controls 2010 Switch-28
FSH-958D, HIGH FLOW SWITCH, CS-EW-5 EYEWASH, BASE TANK
FARM, EAST END, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-261
Instrumentation and
Controls 2010 FIT 839 FLOW METER, CAUSTIC POST FILTRATION, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-262
Instrumentation and
Controls 2010 FIT-822 FIT-822, HYPO FLOW METER TO FLASHMIX, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-263
Instrumentation and
Controls 2010 FIT-823
FIT-823, HYPO FLOW METER, INTERMEDIATE CHEM ADDITION,
CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-264
Instrumentation and
Controls 2010 FIT-824A FLOW METER, HYPO POST FILTRATION 1, CHEM BLDG, WTP Field Instruments Flow 2 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-265
Instrumentation and
Controls 2010 FIT-824B
FIT-824B, FLOW METER, HYPO, POST FILTRATION 2, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-266
Instrumentation and
Controls 2010 FIT-838
FIT-838, FLOW METER, CAUSTIC, LLPS, AF BASIN 1, AF BASIN 2, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-267
Instrumentation and
Controls 2010 FIT-860
FIT-860, FLUORIDE CHASE WATER FLOWMETER, PROMAG P,
FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Flow 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Field Instruments-268
Instrumentation and
Controls 2010 PSL-816
PSL-816, LOW PRESSURE SWITCH, HYPO PUMPS SKID SUCTION,
CHEM PUMP ROOM, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-269
Instrumentation and
Controls 2010 PSL-825
PSL-825, LOW PRESSURE SWITCH, FLUORIDE SKID SUCTION,
FLUORIDE ROOM, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 12-Pretreatment WTM-Field Instruments-27
Instrumentation and
Controls 2010 AE/AIT 523
AE/AIT 523, STREAMING CURRENT MONITOR, COAGULATED
WATER, FLASH MIX, OPS BASEMENT, WTP Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 16-Chemicals WTM-Field Instruments-270
Instrumentation and
Controls 2010 PSL-831
PSL-831, LOW PRESSURE SWITCH , 30inWC, CAUSTIC SKID 21 & 22 SUCTION, FILTERED WATER, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-271
Instrumentation and
Controls 2010 PSL-831A
PSL-831A, LOW PRESSURE SWITCH, 150inWC, CAUSTIC SKID 23 & 24 SUCTION, UP FRONT CAUSTIC, CHEM BLDG, WTP Field Instruments Pressure 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-272
Instrumentation and
Controls 2010 PSL-926
PSL-926, LOW PRESSURE SWITCH, ACH SKID SUCTION, CHEM
BLDG, WTP Field Instruments Pressure 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-273
Instrumentation and
Controls 2010 LSH-797
LSH-797, HIGH LEVEL SWITCH, ACID SPILL CONTAINMENT SUMP, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-274
Instrumentation and
Controls 2010 LSH-798
LSL-798, LOW LEVEL SWITCH, BASIC SPILL CONTAINMENT SUMP, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-275
Instrumentation and
Controls 2010 LSH-798x
LSH-798x, HIGH LEVEL SWITCH, BASIC SPILL CONTAINMENT
SUMP, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 16-Chemicals WTM-Field Instruments-276
Instrumentation and
Controls 2010 LSH-960A
LSH-960A, FLOOD SWITCH, NORTH CHEMICAL SPILL TRENCH,
CHEM BLDG, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-277
Instrumentation and
Controls 2010 LSH-960B
LSH-960B, HIGH LEVEL FLOOD SWITCH, SOUTH CHEMICAL SPILL TRENCH, CHEM BLDG, WTP Field Instruments Level Element 2 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 16-Chemicals WTM-Field Instruments-278
Instrumentation and
Controls 2010 LSL-197
LSL 797, LOW LEVEL SWITCH, ACID SPILL SUMP, CHEMICAL SPILL CONTAINMENT, WTP Field Instruments Level Element 2
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 17-Ozone Generation WTM-Field Instruments-279
Instrumentation and
Controls 2010 1-ME-5
OzGen Ozone Concentration Analyzer, EAST WALL, OZONE
GENERATOR ROOM, Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 No Action Required Reduced Efficiency 1 4 16 Med-Low WTM 12-Pretreatment WTM-Field Instruments-28
Instrumentation and
Controls 2010 AE-537 TURBIDITY, ACTIFLO EAST TRAIN Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-280
Instrumentation and
Controls 2010 1-ME-6 OzGen Ambient Ozone Analyzer, OZONE GENERATOR ROOM, Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 17-Ozone Generation WTM-Field Instruments-281
Instrumentation and
Controls 1990 1-ME-7

OXYGEN DEW POINT ANALYZER, OZONE GENERATOR ROOM,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-282
Instrumentation and
Controls 2010 OG-NBMET-1
OG-NBMET-1, FLOW METER, NITROGEN BOOST SKID, OZONE
GEN RM, WTP Field Instruments Flow 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-283
Instrumentation and
Controls 2010 OG-NBSW-1
OG-NBSW-1, THERMAL SWITCH, NITROGEN BOOST DISCHARGE,
NITROGEN SKID, OZONE GEN RM, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-284
Instrumentation and
Controls 2010 OG-NBSW-2
OG-NBSW-2, WEST PRESSURE SWITCH, AIR RECEIVER,
NITROGEN BOOST SKID, OZONE GEN RM, WTP Field Instruments Pressure 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-285
Instrumentation and
Controls 2010 OG-NBSW-3
OG-NBSW-3, EAST PRESSURE SWITCH, AIR RECEIVER, NITROGEN BOOST SKID, OZONE GEN RM, WTP Field Instruments Pressure 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-286
Instrumentation and
Controls 1990 AE/AIT-249
AE/AIT-249, ANALYZER, OZONE GAS CONCENTRATION, OZONE
GENERATORS, OZONE GENERATOR ROOM, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-287
Instrumentation and
Controls 1990 FE-192
FE-192, FLOW METER, OZONE GENERATOR 1 COOLING WATER,
OZONE GENERATOR ROOM, WTP Field Instruments Flow -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-288
Instrumentation and
Controls 1990 FE-242
FE-242, FLOW METER, OZONE GENERATOR 2 COOLING WATER,
OZONE GENERATOR ROOM, WTP Field Instruments Flow -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-289
Instrumentation and
Controls 2010 FE-892
FE-892, FLOW METER, OZONE GENERATOR 3 COOLING WATER,
OZONE GENERATOR ROOM, WTP Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Field Instruments-29
Instrumentation and
Controls 2010 AE-557 AE-557, TURBIDITY ANALYZER, WEST ACTIFLO, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-290
Instrumentation and
Controls 1990 FIT-192
FIT-192, TRANSMITTER, OZONE GENERATOR 1 COOLING WATER
FLOW METER, OZONE GENERATOR ROOM, WTP Field Instruments Flow -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-291
Instrumentation and
Controls 1990 FIT-242
FIT-242, TRANSMITTER, OZONE GENERATOR 2 COOLING WATER
FLOW METER, OZONE GENERATOR ROOM, WTP Field Instruments Flow -18 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-292
Instrumentation and
Controls 2010 FIT-246

OZONE FLOW TRANSMITTER, OZONE GAS TO CONTACTORS,
OZONE GENERATOR ROOM, WTP Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-293
Instrumentation and
Controls 2010 FIT-892
FIT-892, TRANSMITTER, OZONE GENERATOR 3 COOLING WATER
FLOW METER, OZONE GENERATOR ROOM, WTP Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 17-Ozone Generation WTM-Field Instruments-294
Instrumentation and
Controls 1990 PIT-152 PRESSURE TRANSMITTER, LOX STORAGE TANK, LOX AREA, WTP Field Instruments Pressure -18 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-295
Instrumentation and
Controls 1990 LIT-152
LIT-152, LEVEL TRANSMITTER, LOX STORAGE TANK, LOX AREA, WTP Field Instruments Level Element -18
Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 17-Ozone Generation WTM-Field Instruments-296
Instrumentation and
Controls 2010 PIT-247

OZONE PRESSURE TRANSMITTER, OZONE GAS TO CONTACTORS,
OZONE GENERATOR ROOM, WTP Field Instruments Pressure 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-297
Instrumentation and
Controls 2010 PIT-LCP-OCCP

PIT-LCP-OCCP, PRESSURE TRANSMITTER, OZONE FEED GAS,
OZONE GENERATOR ROOM, WTP Field Instruments Pressure 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-298
Instrumentation and
Controls 2010 PSL-868
PSL-868, PRESSURE SWITCH, LOW FLOW, OZONE GENERATOR 3
COOLING WATER INFLUENT, OZONE GENERATOR ROOM, WTP Field Instruments Pressure 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 17-Ozone Generation WTM-Field Instruments-299
Instrumentation and
Controls 2010 TIT-LCP-OCCP

TEMPERATURE TRANSMITTER, ROSEMOUNT, OZONE FEED GAS,
OZONE GENERATOR ROOM, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 11-Intake / LLPS WTM-Field Instruments-3
Instrumentation and
Controls 2010 PSH-514
PSH 514, PUMP 4 DISCHARGE HIGH PRESSURE SWITCH, LLPS,
WTP Field Instruments Pressure 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 12-Pretreatment WTM-Field Instruments-30
Instrumentation and
Controls 2010 FSL-555
LOW FLOW SWITCH, WEST ACTIFLO SAMPLE PUMP, AF-PMP-24,
WTP Field Instruments Flow 2 Rehabilitation
Process/Facility Operates Normally
Without 2 2 12 Low
WTM 18-EQ Basin + WW PS WTM-Field Instruments-300
Instrumentation and
Controls 2010 AE/AIT-729A EQ BASIN DECANT TURB, RPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2
Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 18-EQ Basin + WW PS WTM-Field Instruments-301
Instrumentation and
Controls 2010 LIT-727 EQ BASIN 1, Level Transmitter, Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 18-EQ Basin + WW PS WTM-Field Instruments-302
Instrumentation and
Controls 2010 LIT-728 EQ BASIN 2 Level Transmitter, Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-303 Instrumentation and
Controls 2010 AE-729B CLARIFIER INF (SLUDGE) Turb, RPS, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-304 Instrumentation and
Controls 2010 AIT-729B
AIT-729B, TRANSMITTER, TURBIDITY, CLARIFIER INF (SLUDGE), WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-305 Instrumentation and
Controls 2010 AIT-729C AIT-729C, TRANSMITTER, TURBIDITY, RETURN to LL Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-306 Instrumentation and
Controls 2010 LE-753A CLARIFIER #1 LEVEL DETECTOR, Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-307 Instrumentation and
Controls 2010 LE-753B CLARIFIER #2 LEVEL DETECTOR, Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-308 Instrumentation and
Controls 2010 LIT-SL-1 FLOW/LEVEL TRANSMITTER EFFLENT SLUICE GATE, LAGOON 1 Field Instruments Level Element 2 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-309 Instrumentation and
Controls 2010 LIT-SL-2 FLOW/LEVEL TRANSMITTER EFFLENT SLUICE GATE, LAGOON 2 Field Instruments Level Element 2 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low
WTM 12-Pretreatment WTM-Field Instruments-31
Instrumentation and
Controls 2010 AF-PSH-542 HI WATER PSI SWITCH, SAND EDUCTOR, WTP Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 19-Sludge Clarifiers and Lagoons WTM-Field Instruments-310 Instrumentation and
Controls 2010 LIT-SL-3 FLOW/LEVEL TRANSMITTER EFFLENT SLUICE GATE, LAGOON 3 Field Instruments Level Element 2 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 21-Blowers / Z3PS WTM-Field Instruments-311
Instrumentation and
Controls 2010 FIT-UW1 Z3 Utility Mag Meter, ZONE 3 PS, WTP Field Instruments Flow 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 21-Blowers / Z3PS WTM-Field Instruments-312
Instrumentation and
Controls 2010 Meter-5
UW-CONVERTER-1, SIGNAL CONVERTER, ZONE 3 UTILITY WATER
MAG METER, ZONE 3 PS, WTP Field Instruments Flow 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 00-Misc Systems WTM-Field Instruments-314
Instrumentation and
Controls 2010 FIT-734 RECYCLE FLOWMETER, Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 00-Misc Systems WTM-Field Instruments-315
Instrumentation and
Controls 2010 FIT-930
FIT-930, FLOW METER, ACH, FLASH MIX 1 ADDITION, CHEM
BLDG, WTP Field Instruments Flow 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 00-Misc Systems WTM-Field Instruments-316
Instrumentation and
Controls 2010 FIT-526A

WTP INF MAG FLOW METER, PLANT INFLUENT WTP, METER
VAULT, WTP Field Instruments Flow 2 Rehabilitation Process/Facility Cannot Operate Without 2 6 36 Med-High WTM 00-Misc Systems WTM-Field Instruments-317
Instrumentation and
Controls 2010 FIT-526B PLANT INF FLOW METER TRANSIT TIME, Field Instruments Flow 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 12-Pretreatment WTM-Field Instruments-32
Instrumentation and
Controls 2010 AF-PSL-542 LOW WATER PSI SWITCH, SAND EDUCTOR, WTP Field Instruments Level Element 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 12-Pretreatment WTM-Field Instruments-33
Instrumentation and
Controls 2010 AIT-525A
AIT-525A, TRANSMITTER, TURBIDITY, PLANT INFLUENT, FLASH MIX, OPS BASEMENT, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Field Instruments-34
Instrumentation and
Controls 2010 AIT-536 AIT-536, TRANSMITTER, PH/TEMP, ACTIFLO EAST TRAIN, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Field Instruments-35
Instrumentation and
Controls 2010 AIT-556 AIT 556, TRANSMITTER, PH/TEMP, WEST TRAIN, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Field Instruments-36
Instrumentation and
Controls 2010 AIT-557 AIT 557, TRANSMITTER, TURBIDIMETER, WEST TRAIN, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Field Instruments-37
Instrumentation and
Controls 2010 FSL-535 LOW FLOW SWITCH, EAST ACTIFLO SAMPLE PUMP, WTP Field Instruments Flow 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 12-Pretreatment WTM-Field Instruments-38
Instrumentation and
Controls 2010 PSL-538 LOW PSI SWITCH, EAST ACTIFLO SAND PUMP 1, AF-PMP-11, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 12-Pretreatment WTM-Field Instruments-39
Instrumentation and
Controls 2010 PSL-539 LOW PSI SWITCH, EAST ACTIFLO SAND PUMP 2, AF-PMP-12, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 11-Intake / LLPS WTM-Field Instruments-4
Instrumentation and
Controls 2010 PSH-513
PSH-513, HIGH PRESSURE SWITCH, PUMP 3 DISCHARGE, LLPS,
WTP Field Instruments Pressure 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 12-Pretreatment WTM-Field Instruments-40
Instrumentation and
Controls 2010 PSL-540 LOW PSI SWITCH, EAST ACTIFLO SAND PUMP 3, AF-PMP-13, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 12-Pretreatment WTM-Field Instruments-41
Instrumentation and
Controls 2010 PSL-558 PSL-558, LOW PSI SWITCH, SAND PUMP 1, WEST ACTIFLO, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 12-Pretreatment WTM-Field Instruments-42
Instrumentation and
Controls 2010 PSL-559 PSL-559, LOW PSI SWITCH, SAND PUMP 2, WEST ACTIFLO, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 12-Pretreatment WTM-Field Instruments-43
Instrumentation and
Controls 2010 PSL-560 PSL-560, LOW PSI SWITCH, SAND PUMP 3, WEST ACTIFLO, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-44
Instrumentation and
Controls 2006 Instrument-216 GAUGE, DIFFERENTIAL PRESSURE DEMISTER, OZONE BASIN 1 Field Instruments Pressure -2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-45
Instrumentation and
Controls 2006 Instrument-217
GAUGE, COMPOUND PRESSURE, DEMISTER, OZONE BASIN 1
EAST TRAIN Field Instruments Pressure -2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-46
Instrumentation and
Controls 2006 Instrument-218
GAUGE, COMPOUND PRESSURE, DEMISTER, OZONE BASIN 1
WEST TRAIN Field Instruments Pressure -2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-47
Instrumentation and
Controls 2010 FI 121
FI 121, OZONE ROTOMETER 4A, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-48
Instrumentation and
Controls 2010 FI 122
FI 122, OZONE ROTOMETER 3B, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-49
Instrumentation and
Controls 2010 FI 125
FI 125, OZONE ROTOMETER 4B, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 11-Intake / LLPS WTM-Field Instruments-5
Instrumentation and
Controls 2010 CNL-PMP-2 CNL-PMP-2, High Pressure Sample pump to Canal Shack, WTP Field Instruments Pressure 2 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-50
Instrumentation and
Controls 2010 FI 126
FI 126, OZONE ROTOMETER 3A, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-51
Instrumentation and
Controls 2010 FI 571A
FI 571A, OZONE ROTOMETER 1A, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-52
Instrumentation and
Controls 2010 FI 571B
FI 571B, OZONE ROTOMETER 1B, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-53
Instrumentation and
Controls 2010 FI 571C
FI 571C, OZONE ROTOMETER 2B, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-54
Instrumentation and
Controls 2010 FI 571D
FI 571D, OZONE ROTOMETER 2A, GT 1600, 2.4-24 SCFM, OZONE DESTRUCT ROOM, WTP Field Instruments Flow 2 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-55
Instrumentation and
Controls 2010 Instrument-214 VACUUM TRANSMITTER, OZONE BASIN 2 Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-56
Instrumentation and
Controls 2010 Instrument-215 GAUGE, DIFFERENTIAL PRESSURE, OZONE BASIN 1, EAST TRAIN Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-57
Instrumentation and
Controls 2010 PI-574A
GAUGE, DIFFERENTIAL PRESSURE DEMISTER, OZONE BASIN 1,
OZONE CONTACTOR, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-58
Instrumentation and
Controls 2010 PI-574B
GAUGE, COMPOUND PRESSURE, DEMISTER, OZONE BASIN 1
WEST TRAIN, OZONE CONTACTOR, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-59
Instrumentation and
Controls 2010 PIT-107
VACUUM TRANSMITTER, OZONE BASIN 3, OZONE CONTACTOR,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 11-Intake / LLPS WTM-Field Instruments-6
Instrumentation and
Controls 2016 CNL-AE-104
CNL-AE-104, CANAL CONDUCTIVITY SENSOR, CANAL SHACK,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-60
Instrumentation and
Controls 2010 PIT-108
VACUUM TRANSMITTER, OZONE BASIN 4, OZONE CONTACTOR,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-61
Instrumentation and
Controls 2010 PIT-574B
PIT-574B, VACUUM TRANSMITTER, OZONE BASIN 1, OZONE
CONTACTOR, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-62
Instrumentation and
Controls 2010 PSV-131
PSV-131, GAUGE, COMPOUND PRESSURE/VACUUM, DEMISTER,
OZONE BASIN 1 EAST TRAIN, OZONE CONTACTOR, WTP Field Instruments Pressure 2 Rehabilitation Process/Facility Operates Normally
Without 2 2 12 Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 13-Ozone Contact + ICA WTM-Field Instruments-63
Instrumentation and
Controls 2010 2-ME-11

OZONE RESIDUAL ANALYZER - CONTACT BASIN, OZONE
DESTRUCT ROOM, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 No Action Required Reduced Efficiency 1 4 16 Med-Low WTM 13-Ozone Contact + ICA WTM-Field Instruments-64
Instrumentation and
Controls 2010 2-ME-7
OFF GAS ANALYZER, OZONE BASIN 1, OZONE DESTRUCT ROOM,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 2 No Action Required
Process/Facility Operates Normally
Without 1 2 8 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-65
Instrumentation and
Controls 2010 FIT-829
FL2 FLOW METER, FLUORIDE, INTERMEDIATE CHEMICAL
ADDITION, Field Instruments Flow 2
Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 24 Low
WTM 13-Ozone Contact + ICA WTM-Field Instruments-66
Instrumentation and
Controls 1990 362 GAUGE, DIFFERENTIAL PRESSURE, OZONE BASIN 1, EAST TRAIN Field Instruments Pressure -18 Replace or Run to
Failure
Process/Facility Operates Normally
Without 2 2 14 Low
WTM 14-Filters WTM-Field Instruments-67
Instrumentation and
Controls 2009 AE/AIT-609
AE/AIT-609, PARTICLE COUNTER, FILTER 10, FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-68
Instrumentation and
Controls 2009 AE/AIT-619
AE/AIT-619, PARTICLE COUNTER, FILTER 01, FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-69
Instrumentation and
Controls 2009 AE/AIT-629
AE/AIT, TRANSMITTER, PARTICLE COUNTER, FILTER 02, FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-7
Instrumentation and
Controls 2016 CNL-AE-105 CNL-AE-105, CANAL ORP SENSOR, CANAL SHACK, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 14-Filters WTM-Field Instruments-70
Instrumentation and
Controls 2009 AE/AIT-639
AE/AIT-639, TRANSMITTER, PARTICLE COUNTER, FILTER 03,
FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-71
Instrumentation and
Controls 2009 AE/AIT-649
AE/AIT-649, PARTICLE COUNTER TRANSMITTER, FILTER 04,
FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-72
Instrumentation and
Controls 2009 AE/AIT-659
AE/AIT-659, PARTICLE COUNTER TRANSMITTER, FILTER 5, FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-73
Instrumentation and
Controls 2009 AE/AIT-669 AE/AIT-669, PARTICLE COUNTER, FILTER 6, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-74
Instrumentation and
Controls 2009 AE/AIT-679 AE/AIT, PARTICLE COUNTER, FILTER 7, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-75
Instrumentation and
Controls 2009 AE/AIT-689 AE/AIT-687, PARTICLE COUNTER, FILTER 8, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-76
Instrumentation and
Controls 2009 AE/AIT-699 AE/AIT-699, PARTICLE COUNTER, FILTER 9, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-77
Instrumentation and
Controls 2009 AE/AIT-717 PARTICLE COUNTER, APPLIED WATER, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-78
Instrumentation and
Controls 2009 AE-131 AE-131, TURBIDITY, APPLIED WATER, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-79
Instrumentation and
Controls 2009 AE-608 AE-608, TURBIDITY, FILTER 10, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-8
Instrumentation and
Controls 2016 CNL-AE-204
CNL-AE-204, BRIDGE CONDUCTIVITY SENSOR, CANAL SHACK,
WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 14-Filters WTM-Field Instruments-80
Instrumentation and
Controls 2009 AE-618 F1 TURBIDITY, Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-81
Instrumentation and
Controls 2009 AE-628 AE-628, TURBIDITY, FILTER 02, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-82
Instrumentation and
Controls 2009 AE-638 AE-638, TURBIDITY, FILTER 03, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-83
Instrumentation and
Controls 2009 AE-648 AE-648, TURBIDITY, FILTER 4, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-84
Instrumentation and
Controls 2009 AE-658 AE-658, TURBIDITY, FILTER 5, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-85
Instrumentation and
Controls 2009 AE-668 FILTER 6 Turbidimeter, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-86
Instrumentation and
Controls 2009 AE-678 AE-678, TURBIDITY, FILTER 7, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-87
Instrumentation and
Controls 2009 AE-688 AE-688, TURBIDITY, FILTER 8, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-88
Instrumentation and
Controls 2009 AE-698 AE-698, TURBIDITY, FILTER 9, FILTER GALLERY, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 14-Filters WTM-Field Instruments-89
Instrumentation and
Controls 2009 AIT-130
AIT-130, TRANSMITTER, PH/TEMP & TURBIDITY, APPLIED
WATER, FILTER GALLERY, WTP Field Instruments
Field Instruments (pH,
chlorine, turbidity, etc.) 1
Replace or Run to
Failure Reduced Efficiency 2 4 32 Med-Low
WTM 11-Intake / LLPS WTM-Field Instruments-9
Instrumentation and
Controls 2016 CNL-AE-205 CNL-AE-205, BRIDGE ORP SENSOR, CANAL SHACK, WTP Field Instruments Field Instruments (pH,
chlorine, turbidity, etc.) 8 No Action Required
Lack of Redundancy/Potential Reduced
Efficiency 1 3 12 Low
WTM 14-Filters WTM-Field Instruments-90
Instrumentation and
Controls 2009 FIT-599 FIT-599, FLOW TRANSMITTER, FILTER 10, FILTER GALLERY, WTP Field Instruments Flow 1 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 3 21 Low
WTM 14-Filters WTM-Field Instruments-91
Instrumentation and
Controls 2009 FIT-700
Chem Mix FLOW METER, CFE POST FILTRATION CHEMICAL
MIXING WATER, FILTER GALLERY, WTP Field Instruments Flow 1 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-92
Instrumentation and
Controls 2009 LT-620 LT-620, TRANSMITTER, LEVEL, FILTER 2, FILTER DECK, WTP Field Instruments Level Element 1 Replace or Run to
Failure Reduced Efficiency 2 4 28 Med-Low
WTM 14-Filters WTM-Field Instruments-93
Instrumentation and
Controls 2009 PIT-607
PIT-607, HEADLOSS TRANSMITTER, FILTER 10, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-94
Instrumentation and
Controls 2009 PIT-617
PIT-617, HEAD LOSS TRANSMITTER, PRESSURE, FILTER 1, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-95
Instrumentation and
Controls 2009 PIT-627
PIT-627, PRESSURE TRANSMITTER, HEAD LOSS, FILTER 2, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-96
Instrumentation and
Controls 2009 PIT-637
PIT-637, HEAD LOSS TRANSMITTER, FILTER 3, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-97
Instrumentation and
Controls 2009 PIT-647
PIT-647, HEAD LOSS TRANSMITTER, FILTER 4, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-98
Instrumentation and
Controls 2009 PIT-657
PIT-657, HEAD LOSS TRANSMITTER, FILTER 5, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 14-Filters WTM-Field Instruments-99
Instrumentation and
Controls 2009 PIT-667
PIT-667, HEAD LOSS TRANSMITTER, FILTER 6, FILTER GALLERY, WTP Field Instruments Pressure 1 Rehabilitation Reduced Efficiency 2 4 24 Med-Low

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 11-Intake / LLPS WTM-Mechanical-1 Mechanical Systems 1974 DS-MOG-2 SLUICE GATE- MOTORIZED, Mechanical Other (Mechanical) -29 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 6 48 High
WTM 12-Pretreatment WTM-Mechanical-10 Mechanical Systems 2010 AF-GEQ-12 AF1 HYDROCYCLONE 2, ACTIFLO EAST TRAIN, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 12-Pretreatment WTM-Mechanical-11 Mechanical Systems 2010 AF-GEQ-13 AF1 HYDROCYCLONE 3, ACTIFLO EAST TRAIN, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 12-Pretreatment WTM-Mechanical-12 Mechanical Systems 2010 AF-GEQ-14 SAND SCRAPER, EAST TRAIN, WTP Mechanical Other (Mechanical) 7 Increased
Maintenance Process/Facility Cannot Operate Without 4 9 45 High WTM 12-Pretreatment WTM-Mechanical-13 Mechanical Systems 2010 AF-GEQ-21 AF2 HYDROCYCLONE 1, WEST ACTIFLO, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 12-Pretreatment WTM-Mechanical-14 Mechanical Systems 2010 AF-GEQ-22 AF2 HYDROCYCLONE 2, WEST ACTIFLO, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 12-Pretreatment WTM-Mechanical-15 Mechanical Systems 2010 AF-GEQ-23 AF2 HYDROCYCLONE 3, WEST ACTIFLO, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 12-Pretreatment WTM-Mechanical-16 Mechanical Systems 2010 AF-MIX-11 AF1 COAG MIXER, ACTIFLO EAST TRAIN, WTP Mechanical Mixer 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 12-Pretreatment WTM-Mechanical-17 Mechanical Systems 2010 AF-MIX-12 AF1 INJECTION MIXER, ACTIFLO EAST TRAIN, WTP Mechanical Mixer 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 12-Pretreatment WTM-Mechanical-18 Mechanical Systems 2010 AF-MIX-13 AF1 MATURATION MIXER, ACTIFLO EAST TRAIN, WTP Mechanical Mixer 7 Increased
Maintenance Process/Facility Cannot Operate Without 4 9 45 High WTM 12-Pretreatment WTM-Mechanical-19 Mechanical Systems 2010 AF-MIX-14 AF-MIX-14, SAND SCRAPER, WEST TRAIN, WTP Mechanical Other (Mechanical) 7 Increased
Maintenance Process/Facility Cannot Operate Without 4 9 45 High WTM 11-Intake / LLPS WTM-Mechanical-2 Mechanical Systems 1974 DS-MOG-1 Drum Screen Gate MOV, Mechanical Other (Mechanical) -29 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 6 6 48 High
WTM 12-Pretreatment WTM-Mechanical-20 Mechanical Systems 2010 AF-MIX-21 AF2 COAG MIXER, WEST ACTIFLO, WTP Mechanical Mixer 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 12-Pretreatment WTM-Mechanical-21 Mechanical Systems 2010 AF-MIX-22 AF2 INJECTION MIXER, WEST ACTIFLO, WTP Mechanical Mixer 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 12-Pretreatment WTM-Mechanical-22 Mechanical Systems 2010 AF-MIX-23 AF2 MATURATION MIXER, WEST ACTIFLO, WTP Mechanical Mixer 7 Increased
Maintenance Process/Facility Cannot Operate Without 4 9 45 High WTM 12-Pretreatment WTM-Mechanical-23 Mechanical Systems 2010 AF-HO-1 AF-HO-1, SAND HOPPER HOIST, AF SAND STORAGE, 2 TON
HARRINGTON MONORAIL, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 4 16 Med-Low
WTM 12-Pretreatment WTM-Mechanical-24 Mechanical Systems 2010 AF-MEQ-31 AF-MEQ-31, HOPPER, SAND, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 4 16 Med-Low
WTM 13-Ozone Contact + ICA WTM-Mechanical-25 Mechanical Systems 2010 PLC51 FlashMix Mechanical Mixer 7 Replace or Run to
Failure Reduced Efficiency 6 6 54 High
WTM 13-Ozone Contact + ICA WTM-Mechanical-26 Mechanical Systems 1974 ICA-MOG-1 ICA-MOG-1, SLUICE GATE, EFFLUENT, ICA, WTP Mechanical Other (Mechanical) -29 Replace or Run to
Failure
Process/Facility Operates Normally
Without 5 5 35 Med-High
WTM 13-Ozone Contact + ICA WTM-Mechanical-27 Mechanical Systems 1974 ICA-MOG-2 ICA-MOG-2, SLUICE GATE, EFFLUENT, ICA, WTP Mechanical Other (Mechanical) -29 Replace or Run to
Failure
Process/Facility Operates Normally
Without 5 5 35 Med-High
WTM 13-Ozone Contact + ICA WTM-Mechanical-28 Mechanical Systems 2010 OC-MOG-1 SLUICE GATE @ OZ CONTACTOR INFLUENT CHANNEL, WTP Mechanical Other (Mechanical) 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 13-Ozone Contact + ICA WTM-Mechanical-29 Mechanical Systems 2010 OC-MOG-2 SLUICE GATE, OZ CONTACTOR BYPASS, WTP Mechanical Other (Mechanical) 7 No Action Required Process/Facility Cannot Operate Without 3 9 36 High WTM 11-Intake / LLPS WTM-Mechanical-3 Mechanical Systems 1974

INTAKE-DRUM
SCREEN 2 Drum Screen 2 Mechanical Other (Mechanical) -29 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 13-Ozone Contact + ICA WTM-Mechanical-30 Mechanical Systems 1990 2-ME-10 OZONE PURGE BLOWER, CONTACTORS 1-4 PURGE, OZONE
DESTRUCT RM, WTP Mechanical Other (Mechanical) -13 Rehabilitation Process/Facility Operates Normally
Without 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Mechanical-31 Mechanical Systems 1990 2-ME-5 OZONE DESTRUCT UNIT 1, OZONE DESTRUCT ROOM, WTP Mechanical Other (Mechanical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 13-Ozone Contact + ICA WTM-Mechanical-32 Mechanical Systems 1990 2-ME-6 OZONE DESTRUCT UNIT 2, OZONE DESTRUCT ROOM, WTP Mechanical Other (Mechanical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 16-Chemicals WTM-Mechanical-33 Mechanical Systems 2010 CF-MIX-2 MIXER- POLY BLENDING TK 6, NORTH POLYBLEND, Mechanical Mixer 7 Rehabilitation Process/Facility Cannot Operate Without 4 9 54 High WTM 17-Ozone Generation WTM-Mechanical-34 Mechanical Systems 1990 OG-O3G-1 OG-O3G-1, VESSEL, OZONE GENERATOR 1, OZONE GENERATOR
ROOM, WTP Mechanical Other (Mechanical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 6 5 30 Med-High
WTM 17-Ozone Generation WTM-Mechanical-35 Mechanical Systems 1990 OG-O3G-2 OG-O3G-2, VESSEL, OZONE GENERATOR 2, OZONE GENERATOR
ROOM, WTP Mechanical Other (Mechanical) -13 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 6 5 30 Med-High
WTM 17-Ozone Generation WTM-Mechanical-36 Mechanical Systems 2010 OG-O3G-3 OG-O3G-3, VESSEL, OZONE GENERATOR 3, OZONE GENERATOR
ROOM, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 4 5 20 Med-High
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-37 Mechanical Systems 2010 SL-MOG-1 EFFLUENT GATE MOG, LAGOON 1 Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-38 Mechanical Systems 2010 SL-MOG-2 EFFLUENT GATE MOG, LAGOON 2 Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-39 Mechanical Systems 2010 SL-MOG-3 EFFLUENT GATE MOG, LAGOON 3 Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 11-Intake / LLPS WTM-Mechanical-4 Mechanical Systems 1974 DS-MEQ-2 DRUM SCREEN 2, Mechanical Other (Mechanical) -29 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-40 Mechanical Systems 2010 SC-CLR-1 CLARIFIER #1 RAKE MOTOR, Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-41 Mechanical Systems 2010 SC-CLR-2 CLARIFIER #2 RAKE MOTOR, Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 5 20 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-42 Mechanical Systems 2010 SC-MIX-1 CLARIFIER #1 TURBINE PROPELLER MOTOR, Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 19-Sludge Clarifiers and Lagoons WTM-Mechanical-43 Mechanical Systems 2010 SC-MIX-2 CLARIFIER #2 TURBINE PROPELLER MOTOR, SOLIDS HANDLING, Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 1 5 20 Medium
WTM 00-Misc Systems WTM-Mechanical-44 Mechanical Systems 2010 OG-TNK-1 OG-TNK-1, NITROGEN COMPRESSED AIR RECEIVER, NITROGEN
BOOST SKID, OZONE GEN RM, WTP Mechanical Other (Mechanical) 7 No Action Required Reduced Efficiency 3 6 24 Med-High WTM 11-Intake / LLPS WTM-Mechanical-5 Mechanical Systems 2010

INTAKE-DRUM
SCREEN 1 Drum Screen 1 Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium

Clity of Fairfield
Utility Master Plan
Last Revised: 08-28-23

WATERMAN WTP ASSET RISK ASSESSMENT RESULTS
FacilityCode Process Area Asset Name Discipline Install Year City Asset ID Asset Description Class Subclass Remaining Useful
Life (Years) Action Plan Consequence on Operating Ability LOF COF Risk Score Risk Level WTM 11-Intake / LLPS WTM-Mechanical-6 Mechanical Systems 2010 DS-MEQ-1 DRUM SCREEN 1, Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 4 24 Medium
WTM 11-Intake / LLPS WTM-Mechanical-7 Mechanical Systems 2010 DS-MTR-1 P1 Drum Screen Motor, Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 5 30 Medium
WTM 12-Pretreatment WTM-Mechanical-8 Mechanical Systems 2010 AF-MOG-10 SLUICE GATE, EFF CHANNEL, WTP Mechanical Other (Mechanical) 7 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 5 6 42 Med-High
WTM 12-Pretreatment WTM-Mechanical-9 Mechanical Systems 2010 AF-GEQ-11 AF HYDROCYCLONE 1, ACTIFLO EAST TRAIN, WTP Mechanical Other (Mechanical) 7 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 3 12 Med-Low
WTM 17-Ozone Generation WTM-Valves-248 Mechanical Systems 1990 OG-MOV-13 OG-MOV-13, VALVE, 2 BUTTERFLY, OZONE GENERATOR 1
COOLING SUPPLY, OZONE GENERATOR ROOM, WTP Valves Butterfly -8 Replace or Run to
Failure
Lack of Redundancy/Potential Reduced
Efficiency 2 4 28 Med-Low
WTM 16-Chemicals WTM-Other-1 Other 2010 EQUIPMENT-14
CF-EW-4, EYE WASH STATION, FLUORIDE PUMP ROOM, CHEM
BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-10 Other 2010 EQUIPMENT-23
CS-EW-6, EYE WASH STATION, BASE OFFLOAD AREA, SOUTH
TANK FARM, CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE! Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-11 Other 2014
CO2-CONTROL
CABINET Control Cabinet Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 16-Chemicals WTM-Other-12 Other 2014 CO2-FILL CO2 LIQUID FILL CONNECTION, WTP Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 16-Chemicals WTM-Other-14 Other 2014
CO2-FILL AND
RETURN
CONNECTION Tank Fill and Return Connection Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 16-Chemicals WTM-Other-15 Other 2014 CO2-HEATER Heater Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 16-Chemicals WTM-Other-16 Other 2014 CO2-MEQ-1 CO2 HEATER CONTROLLER, 375 LBS PER HR, WTP Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 16-Chemicals WTM-Other-17 Other 2014 CO2-PIPING Piping Line Valves Other / Uncategorized Other / Uncategorized #VALUE! Rehabilitation Reduced Efficiency 2 5 30 Medium WTM 16-Chemicals WTM-Other-2 Other 2010 EQUIPMENT-15
CF-EW-1, EYE WASH STATION, POLYBLEND ROOM, CHEM BLDG,
WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-3 Other 2010 EQUIPMENT-16
CF-EW-2, EYE WASH STATION, ACID CHEM PUMP AREA, CHEM
BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-4 Other 2010 EQUIPMENT-17
CF-EW-3, EYE WASH STATION, BASE CHEM PUMP AREA, CHEM
BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-5 Other 2010 EQUIPMENT-18
CS-EW-1, EYE WASH STATION, ACID CHEM OFFLOAD, NORTH
TANK FARM, CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE! Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-6 Other 2010 EQUIPMENT-19
CS-EW-2, EYE WASH STATION, ACID TANK FARM, WEST END,
CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-7 Other 2010 EQUIPMENT-20
CS-EW-3, EYE WASH STATION, ACID TANK FARM, EAST END,
CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-8 Other 2010 EQUIPMENT-21
CS-EW-4, EYE WASH STATION, BASE TANK FARM, WEST END,
CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 16-Chemicals WTM-Other-9 Other 2010 EQUIPMENT-22
CS-EW-5, EYE WASH STATION, BASE TANK FARM, EAST END,
CHEM BLDG, WTP Other / Uncategorized Eyewash #VALUE!
Increased
Maintenance
Process/Facility Operates Normally
Without 2 2 10 Low
WTM 11-Intake / LLPS WTM-Pump-1 Mechanical Systems 2010 CNL-PMP-1 CNL-PMP-1, PUMP, SUBMERSIBLE, CANAL WATER QUALITY
PUMP FROM BRIDGE TO WQ SHACK, WTP Pump Submersible 17
Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 2 3 15 Low
WTM 12-Pretreatment WTM-Pump-10 Mechanical Systems 2010 FM-PMP-1 FM-PMP-1, FLASH MIX PUMP 1, OPS BASEMENT, WTP Pump Other (Pump) 17 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 4 16 Med-Low
WTM 12-Pretreatment WTM-Pump-11 Mechanical Systems 2010 FM-PMP-2 FM-PMP-2, FLASH MIX PUMP 2, OPS BASEMENT, WTP Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-12 Mechanical Systems 2010 FM-PMP-3 FM-PMP-3, INFLUENT FLOW SAMPLE PUMP, FLASH MIX, OPS
BASEMENT, WTP Pump Sample 2 No Action Required Reduced Efficiency 1 4 16 Med-Low WTM 12-Pretreatment WTM-Pump-13 Mechanical Systems 2010 FM-PMP-4 COAGULATED SAMPLE PUMP, FLASH MIX, OPS BASEMENT, WTP Pump Sample 2 No Action Required Reduced Efficiency 1 4 16 Med-Low WTM 12-Pretreatment WTM-Pump-14 Mechanical Systems 2010 AF-PMP-11 SAND PUMP 1- EAST ACTIFLO, Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-15 Mechanical Systems 2010 AF-PMP-12 SAND PUMP 2 - EAST ACTIFLO, Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-16 Mechanical Systems 2010 AF-PMP-13 SAND PUMP 3 - EAST ACTIFLO, Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-17 Mechanical Systems 2010 AF-PMP-14 WATER QUALITY SAMPLE PUMP - EAST ACTIFLO, Pump Sample 2 Rehabilitation Reduced Efficiency 2 4 24 Med-Low WTM 12-Pretreatment WTM-Pump-18 Mechanical Systems 2010 AF-PMP-21 SAND PUMP 1- WEST ACTIFLO, Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-19 Mechanical Systems 2010 AF-PMP-22 SAND PUMP 2-WEST ACTIFLO, Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 11-Intake / LLPS WTM-Pump-2 Mechanical Systems 1974 DS-PMP-2 PUMP 2 - SCREEN WASH Pump Other (Pump) -19 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 4 5 30 Med-High
WTM 12-Pretreatment WTM-Pump-20 Mechanical Systems 2010 AF-PMP-23 AF-PMP-23, SAND PUMP 3, WEST ACTIFLO, WTP Pump Other (Pump) 17 Increased
Maintenance
Lack of Redundancy/Potential Reduced
Efficiency 4 4 20 Medium
WTM 12-Pretreatment WTM-Pump-21 Mechanical Systems 2010 AF-PMP-24 WATER QUALITY SAMPLE PUMP , WEST ACTIFLO, Pump Sample 2 No Action Required Reduced Efficiency 1 4 16 Med-Low WTM 13-Ozone Contact + ICA WTM-Pump-22 Mechanical Systems 2010 OC-PMP-1 OC-PMP-1, OZONE CONTACTOR DRAIN SUMP PUMP 1, OZONE
CONTACTOR, WTP Pump Sump 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 4 24 Med-Low
WTM 13-Ozone Contact + ICA WTM-Pump-23 Mechanical Systems 2010 OC-PMP-2 OZONE CONTACTOR DRAIN SUMP PUMP 2, OZONE CONTACTOR
GALLERY, WTP Pump Sump 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 13-Ozone Contact + ICA WTM-Pump-24 Mechanical Systems 2010 OC-PMP-3 OC-PMP-3, OZONE CONTACTOR DRAIN SUMP PUMP 3, OZONE
CONTACTOR GALLERY, WTP Pump Sump 17 Rehabilitation
Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 14-Filters WTM-Pump-25 Mechanical Systems 2010 FS-PMP-10 FS-PMP-10, FILTER TO WASTE PUMP 1, FILTER GALLERY, WTP Pump Other (Pump) 17 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 5 20 Medium
WTM 14-Filters WTM-Pump-26 Mechanical Systems 2010 FS-PMP-20 FS-PMP-20, FILTER TO WASTE PUMP 2, FILTER GALLERY, WTP Pump Other (Pump) 17 No Action Required Lack of Redundancy/Potential Reduced
Efficiency 3 5 20 Medium
WTM 14-Filters WTM-Pump-27 Mechanical Systems 2010 FG-SP-1 SUMP PUMP 1, SUBMERSIBLE, FILTER GALLERY DRAIN, WTP Pump Sump 17 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 14-Filters WTM-Pump-28 Mechanical Systems 2010 FG-SP-2 SUMP PUMP 2, SUBMERSIBLE, FILTER GALLERY DRAIN, WTP Pump Sump 17 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low
WTM 14-Filters WTM-Pump-29 Mechanical Systems 2010 FG-SP-24 APPLIED SAMPLE PUMP, FILTER GALLERY, WTP Pump Sample 2 Rehabilitation Lack of Redundancy/Potential Reduced
Efficiency 2 3 18 Low