Hydrohistorian
North Washington Street Water & Sanitation District
Serves Welby, North Washington.
Its service area also reaches South Platte: Denver Gage to Greeley (33.0%), South Platte Cheesman to Denver Gage (20.0%).
Boundary traced from IRE. About 17 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| WASHINGTON STREET MASTER METER | Consecutive connection (purchased) | Surface water · from DENVER WATER BOARD |
| FRANKLIN STREET MASTER METER | Consecutive connection (purchased) | Surface water · from DENVER WATER BOARD |
| PURCHASE DENVER WATER CO0116001 | Consecutive connection (purchased) | Surface water · from DENVER WATER BOARD |
These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.
Wholesale connections
Buys water from DENVER WATER BOARD.
Sells water to 3 systems: CHAPARRAL VILLAGE MHP, FRANKLIN MOBILE HOME PARK, NORTHSIDE VILLAGE MHP.
DWR structures that name this system
Source Probable join · fetched 2026-09-09 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
No DWR structure on file records this system as its contact, and none of its EPA intakes matches a structure name in its districts. DWR records a contact on only a fraction of structures, and only for districts fetched from its live service, so this is absence of a record, not evidence of no rights.
Compliance record
Source Register of another agency · fetched 2026-09-09 · verify at EPA ECHO ↗
Nothing open today, but 1 health-based violation appears on the federal record historically. The history is below.
EPA's own summary: violations in 0 of the last 12 quarters.
What happened
All 1 violation record on file, grouped into the 1 distinct thing EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (1 of 1)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2019-05-31 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2019-08-02) |
What the regulator did about it
6 enforcement actions on this system's federal record. In Colorado the state is the primacy agency, so most actions are the state's; EPA acts directly on tribal systems and when it steps in.
| Date | Action | By |
|---|---|---|
| 2022-08-30 | St Compliance achieved | state |
| 2022-07-25 | St Violation/Reminder Notice | state |
| 2019-09-03 | St Public Notif received | state |
| 2019-08-02 | St Compliance achieved Renewed DS certification, confirmed with CCWP. ejc 8/23/19 |
state |
| 2019-08-01 | St Violation/Reminder Notice | state |
| 2019-08-01 | St Public Notif requested | state |
No lead or copper 90th-percentile result on the federal record for this system.
Violation, enforcement and lead/copper records are EPA SDWIS federal reporting, fetched monthly; the summary is EPA ECHO. Code names come from EPA's own REF_CODE_VALUE table. SDWIS carries violations, not routine sample results — nitrate, disinfection by-product and PFAS values are not in it, and a clean record here means nothing was reported as a violation, not that nothing was ever detected. For what was measured, ask the system for its Consumer Confidence Report.
PFAS and lithium: EPA's UCMR 5 monitoring, 2023–2025
Source Register of another agency · fetched 2026-09-09 · verify at EPA UCMR occurrence data ↗
EPA did not sample this system under UCMR 5 (the rule covered every system serving more than 3,300 people and a drawn sample of smaller ones).
Common questions
Who provides drinking water in Denver, Colorado?
North Washington Street Water & Sanitation District is the public water system serving 14,500 people in Adams County, from purchased surface water. Its EPA public water system id is CO0101105.
Where does North Washington Street Water & Sanitation District get its water?
North Washington Street Water & Sanitation District reports purchased surface water as its primary source. EPA lists its source facilities as WASHINGTON STREET MASTER METER, FRANKLIN STREET MASTER METER, PURCHASE DENVER WATER CO0116001.
Does North Washington Street Water & Sanitation District have any drinking water violations?
EPA's compliance record shows no open health-based violations for North Washington Street Water & Sanitation District at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Places this system serves
Census places its EPA service-area boundary substantially covers. Each page lists every system serving that place.
Every provider in Adams County.
The record
EPA SDWIS federal reporting as of 2026-09-08; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →