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CACHEVILLE SERVICE DIST

PWS ID: CA5700700 · WOODLAND, California 95695

CACHEVILLE SERVICE DIST serves 239 people in WOODLAND, California using Groundwater water sources. It has 77 recorded EPA violations, including 7 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CACHEVILLE SERVICE DIST

CACHEVILLE SERVICE DIST is a private-owned community water system that delivers drinking water to 239 residents in WOODLAND, California (Yolo County) through 157 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 77 total violations for this system , of which 7 (9%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 65 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 6 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. CACHEVILLE SERVICE DIST's 77 violations sit above the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
239
Total Violations
77
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
157
County
Yolo
School/Daycare
No
MCL Violations
6
Monitoring Violations
65
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 6 2008
Methoxychlor MR 2 2016
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2016
Atrazine MR 2 2016
2,3,7,8-TCDD MR 2 2016
2,4-D MR 2 2016
Dinoseb MR 2 2016
Di(2-ethylhexyl) adipate MR 2 2016
Gross Alpha, Excl. Radon and U MR 2 1981
Pentachlorophenol MR 2 2016
Endothall MR 2 2016
Picloram MR 2 2016
Benzo(a)pyrene MR 2 2016
ETHYLENE DIBROMIDE MR 2 2016
BHC-GAMMA MR 2 2016
Hexachlorocyclopentadiene MR 2 2016
2,4,5-TP MR 2 2016
Di(2-ethylhexyl) phthalate MR 2 2016
LASSO MR 2 2016
Toxaphene MR 2 2016
Heptachlor MR 2 2016
Diquat MR 2 2016
Simazine MR 2 2016
Carbofuran MR 2 2016
HEXACHLOROBENZENE MR 2 2016
Heptachlor epoxide MR 2 2016
Dalapon MR 2 2016
Endrin MR 2 2016
Glyphosate MR 2 2016
Total Polychlorinated Biphenyls (PCB) MR 2 2016

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for CACHEVILLE SERVICE DIST.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CA5700700 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects CACHEVILLE SERVICE DIST under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CA5700700 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CA5700700 / 5200
2022 TTHM MR 1 SDWIS / CA5700700 / 2950
2022 Total Haloacetic Acids (HAA5) MR 1 SDWIS / CA5700700 / 2456
2016 Methoxychlor MR 2 SDWIS / CA5700700 / 2015
2016 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / CA5700700 / 2931
2016 Atrazine MR 2 SDWIS / CA5700700 / 2050
2016 2,3,7,8-TCDD MR 2 SDWIS / CA5700700 / 2063
2016 2,4-D MR 2 SDWIS / CA5700700 / 2105
2016 Dinoseb MR 2 SDWIS / CA5700700 / 2041
2016 Di(2-ethylhexyl) adipate MR 2 SDWIS / CA5700700 / 2035
2016 Pentachlorophenol MR 2 SDWIS / CA5700700 / 2326
2016 Endothall MR 2 SDWIS / CA5700700 / 2033
2016 Picloram MR 2 SDWIS / CA5700700 / 2040
2016 Benzo(a)pyrene MR 2 SDWIS / CA5700700 / 2306

How CACHEVILLE SERVICE DIST Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric CACHEVILLE SERVICE DIST California avg Federal benchmark
Total violations 77 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 7 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 239 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CACHEVILLE SERVICE DIST water safe to drink? ▼
CACHEVILLE SERVICE DIST (PWS ID: CA5700700) has 77 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 239 people using Groundwater sources.
How many people does CACHEVILLE SERVICE DIST serve? ▼
CACHEVILLE SERVICE DIST serves 239 people in WOODLAND, California. It is a Private-owned system using Groundwater water sources with 157 service connections.
What type of violations does CACHEVILLE SERVICE DIST have? ▼
CACHEVILLE SERVICE DIST has 77 total violations: 7 health-based violations (MCL exceedances or treatment failures), 65 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CACHEVILLE SERVICE DIST water? ▼
No PFAS testing data is available for CACHEVILLE SERVICE DIST under the EPA's UCMR5 monitoring program.
What water source does CACHEVILLE SERVICE DIST use? ▼
CACHEVILLE SERVICE DIST uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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