Public water system · CO0101105
ActiveNorth Washington Street Wsd
At a glance
North Washington Street Wsd (PWSID CO0101105) is an active community water system in Adams County, Colorado. It reports serving 14,500 people through 3,637 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
14,500
Service connections
3,637
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does North Washington Street Wsd compare with other water systems in Adams County?
By EPA's size categories, North Washington Street Wsd is a large system (10,001 to 100,000 people). Adams County has 82 active public water systems. Its population served is about 67% above the county average of 8,669 people per system, and accounts for 2% of the 710,822 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so North Washington Street Wsd is about twice that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 337 Colorado systems (15%) list purchased surface water as their primary source.
Who owns and regulates North Washington Street Wsd?
EPA lists North Washington Street Wsd as owned by a local government. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 19 of the 82 active systems in Adams County (23%) are also owned by a local government.
Does North Washington Street Wsd have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2022. The violations listed here began between May 2019 and July 2022. By type: 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminants or rules involved are Public Notice and Stage 1 Disinfectants and Disinfection Byproducts Rule. EPA lists 2 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2022-07-10 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2019-05-31 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
All 2 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
North Washington Street Wsd: frequently asked questions
Who runs North Washington Street Wsd?
North Washington Street Wsd (PWSID CO0101105) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does North Washington Street Wsd serve?
North Washington Street Wsd reports serving 14,500 people through 3,637 service connections in Adams County, Colorado.
Where does North Washington Street Wsd get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does North Washington Street Wsd have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2022. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is North Washington Street Wsd's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find North Washington Street Wsd's water quality report?
As a community water system, North Washington Street Wsd must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Adams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Thornton City of | Adams | 226,465 | Community | Surface water |
| Westminster City of | Adams | 202,078 | Community | Surface water |
| South Adams County Wsd | Adams | 75,559 | Community | Purchased surface water |
| Brighton City of | Adams | 56,304 | Community | Purchased surface water |
| Northglenn City of | Adams | 48,927 | Community | Surface water |
| Crestview Wsd | Adams | 23,756 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “North Washington Street Wsd, PWSID CO0101105, Colorado”, https://aquacensus.com/water-systems/colorado/north-washington-street-wsd-co0101105 (data as of October 1, 2026).