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Community Water System · PWS CO0163020

Yuma City Of

Yuma, Colorado 80759 - drinking water served from groundwater sources to 4,049 people, tracked in EPA SDWIS and UCMR5.

4,049
People served
473
EPA violations
36
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 473 drinking-water violations at Yuma City Of, 8% of them health-based - above the Colorado per-system average.

473
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
4,049
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Yuma City Of

Yuma City Of is a local-owned community water system that delivers drinking water to 4,049 residents in Yuma, Colorado (Yuma County) through 1,505 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 473 total violations for this system , of which 36 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 425 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 36 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Yuma City Of's 473 violations sit above the Colorado average.

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
4,049
Total Violations
473
Health-Based Violations
36
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,505
County
Yuma
School/Daycare
No
MCL Violations
36
Monitoring Violations
425
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 36 2000
Endrin MR 14 2020
BHC-GAMMA MR 14 2020
Diquat MR 14 2020
Endothall MR 14 2020
Di(2-ethylhexyl) adipate MR 14 2020
OXAMYL MR 14 2020
Hexachlorocyclopentadiene MR 14 2020
Atrazine MR 14 2020
LASSO MR 14 2020
Heptachlor epoxide MR 14 2020
2,4,5-TP MR 14 2020
Benzo(a)pyrene MR 14 2020
Pentachlorophenol MR 14 2020
ETHYLENE DIBROMIDE MR 14 2020
Chlordane MR 14 2020
Dalapon MR 14 2020
Simazine MR 14 2020
Picloram MR 14 2020
Dinoseb MR 14 2020
Heptachlor MR 14 2020
2,4-D MR 14 2020
Total Polychlorinated Biphenyls (PCB) MR 14 2020
Methoxychlor MR 14 2020
Di(2-ethylhexyl) phthalate MR 14 2020
Carbofuran MR 14 2020
HEXACHLOROBENZENE MR 14 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 14 2020
Toxaphene MR 14 2020
Coliform (TCR) MR 9 2006

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 348 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFMBA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 6/12/2024 <20.00 ppt 20.00 ppt Not Detected
PFHpS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 6/12/2024 <7.00 ppt 7.00 ppt Not Detected
PFPeA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 6/12/2024 <2.00 ppt 2.00 ppt Not Detected
PFTA 6/12/2024 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 6/12/2024 <6.00 ppt 6.00 ppt Not Detected
PFUnA 6/12/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 6/12/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/12/2024 <2.00 ppt 2.00 ppt Not Detected
PFDoA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/12/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFEESA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeA 6/12/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/12/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 6/12/2024 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 6/12/2024 <7.00 ppt 7.00 ppt Not Detected

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 Yuma City Of.

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 CO0163020 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Yuma City Of under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

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
2025 Lead and Copper Rule MR 6 SDWIS / CO0163020 / 5000
2025 Revised Total Coliform Rule Other 3 SDWIS / CO0163020 / 8000
2025 Consumer Confidence Rule Other 3 SDWIS / CO0163020 / 7000
2025 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / CO0163020 / 5200
2025 Public Notice Other 2 SDWIS / CO0163020 / 7500
2020 Endrin MR 14 SDWIS / CO0163020 / 2005
2020 BHC-GAMMA MR 14 SDWIS / CO0163020 / 2010
2020 Diquat MR 14 SDWIS / CO0163020 / 2032
2020 Endothall MR 14 SDWIS / CO0163020 / 2033
2020 Di(2-ethylhexyl) adipate MR 14 SDWIS / CO0163020 / 2035
2020 OXAMYL MR 14 SDWIS / CO0163020 / 2036
2020 Hexachlorocyclopentadiene MR 14 SDWIS / CO0163020 / 2042
2020 Atrazine MR 14 SDWIS / CO0163020 / 2050
2020 LASSO MR 14 SDWIS / CO0163020 / 2051
2020 Heptachlor epoxide MR 14 SDWIS / CO0163020 / 2067

How Yuma City Of Compares

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

Metric Yuma City Of Colorado avg Federal benchmark
Total violations 473 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,049 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Yuma City Of water safe to drink?
Yuma City Of (PWS ID: CO0163020) has 473 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,049 people using Groundwater sources.
How many people does Yuma City Of serve?
Yuma City Of serves 4,049 people in Yuma, Colorado. It is a Local-owned system using Groundwater water sources with 1,505 service connections.
What type of violations does Yuma City Of have?
Yuma City Of has 473 total violations: 36 health-based violations (MCL exceedances or treatment failures), 425 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Yuma City Of water?
No. Yuma City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Yuma City Of use?
Yuma City Of 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.