Community Water System · PWSID CO0101110

North Washington Wua

Serves 90 peopleGroundwaterOwner: PrivateBrighton, Colorado

3 open treatment violations.

Open for: Groundwater Rule. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 2004: 140 violations. 5 treatment lapses · 121 missed or late tests · 14 notices or reports. Most recent began 2025-08-29.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit

5Treatment lapse3 open

121Missed or late test

14Notice or report6 open

More violations on record than 98% of active water systems in Colorado. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

One square ≈ 9 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.

4% treatment lapse · 586% missed or late test · 12110% notice or report · 14

Across Colorado, 74% of violations are missed or late tests and 6% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 8 results on file · action level 15 ppb

0.5 ppb

0.3 ppb

0 ppb

Open now (9)

2025-08-29Public NoticePN Violation without NPDWR ViolationOpen
2025-08-29Public NoticePN Violation for NPDWR ViolationOpen
2025-05-29Public NoticePN Violation for NPDWR ViolationOpen
2025-03-01Public NoticePN Violation for NPDWR ViolationOpen
2024-11-29Public NoticePN Violation for NPDWR ViolationOpen
2024-08-23Groundwater Rule ×3Failure To Address DeficiencyOpen
2024-04-24Revised Total Coliform RuleOtherOpen

Every violation on record

2025-08-29Public NoticePN Violation without NPDWR ViolationOpen
2025-08-29Public NoticePN Violation for NPDWR ViolationOpen
2025-05-29Public NoticePN Violation for NPDWR ViolationOpen
2025-03-01Public NoticePN Violation for NPDWR ViolationOpen
2024-11-29Public NoticePN Violation for NPDWR ViolationOpen
2024-08-23Groundwater Rule ×3Failure To Address DeficiencyOpen
2024-04-24Revised Total Coliform RuleOtherOpen
2023-12-02Public NoticePN Violation for NPDWR ViolationBack in compliance
2023-09-02Public NoticePN Violation for NPDWR ViolationBack in compliance
2023-08-01DBP Stage 1Treatment Technique No Certif. OperatorBack in compliance
2023-06-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2023-03-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2023-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
2022-12-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2022-09-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2022-06-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2022-03-26Public NoticePN Violation for NPDWR ViolationBack in compliance
2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
2021-09-16Groundwater RuleFailure To Address DeficiencyBack in compliance
2020-01-01EndrinMonitoring, RegularBack in compliance
2020-01-01Bhc-GammaMonitoring, RegularBack in compliance
2020-01-01MethoxychlorMonitoring, RegularBack in compliance
2020-01-01ToxapheneMonitoring, RegularBack in compliance
2020-01-01Diquat ×2Monitoring, RegularBack in compliance
2020-01-01Endothall ×2Monitoring, RegularBack in compliance

Show the other 64 entries

2020-01-01Di(2-ethylhexyl) adipate ×2Monitoring, RegularBack in compliance
2020-01-01Oxamyl ×2Monitoring, RegularBack in compliance
2020-01-01Simazine ×2Monitoring, RegularBack in compliance
2020-01-01Di(2-ethylhexyl) phthalate ×2Monitoring, RegularBack in compliance
2020-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
2020-01-01Aldicarb sulfoxide ×2Monitoring, RegularBack in compliance
2020-01-01Aldicarb sulfone ×2Monitoring, RegularBack in compliance
2020-01-01Carbofuran ×2Monitoring, RegularBack in compliance
2020-01-01Aldicarb ×2Monitoring, RegularBack in compliance
2020-01-01Atrazine ×2Monitoring, RegularBack in compliance
2020-01-01Lasso ×2Monitoring, RegularBack in compliance
2020-01-01HeptachlorMonitoring, RegularBack in compliance
2020-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
2020-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
2020-01-01Benzo(a)pyrene ×2Monitoring, RegularBack in compliance
2020-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
2020-01-011, 2-Dibromo-3-Chloropropane ×2Monitoring, RegularBack in compliance
2020-01-01Ethylene Dibromide ×2Monitoring, RegularBack in compliance
2020-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Styrene ×2Monitoring, RegularBack in compliance
2020-01-01Ethylbenzene ×2Monitoring, RegularBack in compliance
2020-01-01Toluene ×2Monitoring, RegularBack in compliance
2020-01-01Benzene ×2Monitoring, RegularBack in compliance
2020-01-01Chlorobenzene ×2Monitoring, RegularBack in compliance
2020-01-01Tetrachloroethylene ×2Monitoring, RegularBack in compliance
2020-01-011,1,2-Trichloroethane ×2Monitoring, RegularBack in compliance
2020-01-01Trichloroethylene ×2Monitoring, RegularBack in compliance
2020-01-011,2-Dichloropropane ×2Monitoring, RegularBack in compliance
2020-01-01Carbon tetrachloride ×2Monitoring, RegularBack in compliance
2020-01-011,1,1-Trichloroethane ×2Monitoring, RegularBack in compliance
2020-01-011,2-Dichloroethane ×2Monitoring, RegularBack in compliance
2020-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
2020-01-011,1-Dichloroethylene ×2Monitoring, RegularBack in compliance
2020-01-01Vinyl chloride ×2Monitoring, RegularBack in compliance
2020-01-01p-Dichlorobenzene ×2Monitoring, RegularBack in compliance
2020-01-01o-Dichlorobenzene ×2Monitoring, RegularBack in compliance
2020-01-01Dichloromethane ×2Monitoring, RegularBack in compliance
2020-01-01Xylenes, Total ×2Monitoring, RegularBack in compliance
2020-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
2020-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularBack in compliance
2020-01-01Selenium ×2Monitoring, RegularBack in compliance
2020-01-01Thallium, Total ×2Monitoring, RegularBack in compliance
2020-01-01Beryllium, Total ×2Monitoring, RegularBack in compliance
2020-01-01Antimony, Total ×2Monitoring, RegularBack in compliance
2020-01-01Sodium ×2Monitoring, RegularBack in compliance
2020-01-01Nickel ×2Monitoring, RegularBack in compliance
2020-01-01Mercury ×2Monitoring, RegularBack in compliance
2020-01-01Chromium ×2Monitoring, RegularBack in compliance
2020-01-01Cadmium ×2Monitoring, RegularBack in compliance
2020-01-01Barium ×2Monitoring, RegularBack in compliance
2020-01-01Arsenic ×2Monitoring, RegularBack in compliance
2017-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
2017-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
2017-01-01EndrinMonitoring, RegularBack in compliance
2017-01-01Bhc-GammaMonitoring, RegularBack in compliance
2017-01-01MethoxychlorMonitoring, RegularBack in compliance
2017-01-01ToxapheneMonitoring, RegularBack in compliance
2017-01-01HeptachlorMonitoring, RegularBack in compliance
2017-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
2017-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
2017-01-01ChlordaneMonitoring, RegularBack in compliance
2017-01-01Hexachlorocyclopentadiene ×2Monitoring, RegularBack in compliance
2017-01-01Hexachlorobenzene ×2Monitoring, RegularBack in compliance
2004-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served	90
Service connections	36
Water source	Groundwater
System type	Community Water System
Owner	Private
Status	Active
City	Brighton
EPA ZIP on file	80602

Areas served

Adams County

Reading this record

North Washington Wua is a community water system that draws from groundwater and serves about 90 people in Brighton, Colorado. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.