Water quality in Delaware, Iowa
Delaware is in Delaware County. 28 active public water systems serve the county; 7 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Delaware County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Penn Center INC Delhi |
89 | 0 | 3.0 mi | |
| Delhi Water Supply Delhi |
420 | 0 | 3.1 mi | |
| Earlville Muni Water Supply Earlville |
724 | 0 | 5.4 mi | |
| Manchester Water Supply Manchester |
5,077 | 0 | 5.7 mi | |
| Hopkinton Municipal Utilities Hopkinton |
622 | 0 | 10.4 mi | |
| Ryan Water Supply Ryan |
350 | 1 | 11.1 mi | |
| Colesburg Water Supply Colesburg |
386 | 0 | 13.5 mi |
Non-community systems in Delaware County (20: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Manchester Fish Hatchery Manchester |
43 | 0 | 0 | |
|
Lazy T Campground Manchester |
25 | 2 | 0 | |
|
Clair-View Acres Waterworks LLC Delhi |
56 | 0 | 0 | |
|
Tri-State Raceway Earlville |
27 | 3 | 1 | |
|
Dollar General (earlville) Earlville |
40 | 2 | 1 | |
|
Eip Manufacturing, LLC Earlville |
60 | 0 | 0 | |
|
Baileys Ford Park Delaware Ccb Manchester |
55 | 0 | 0 | |
|
Lost Beach Resort Delhi |
50 | 1 | 0 | |
|
Delhi Lakeview Estates Delhi |
35 | 2 | 1 | |
|
Pin Oak Pub & Links Manchester |
100 | 4 | 1 | |
|
Hartwick Point Well Delhi |
120 | 0 | 0 | |
|
Rocky Nook Association, Inc. Delhi |
50 | 0 | 0 | |
|
Turtle Creek Park Delaware C.c.b. Manchester |
27 | 0 | 0 | |
|
Hart Ridge Golf Course Manchester |
167 | 0 | 0 | |
|
Big House Petersburg |
27 | 0 | 0 | |
|
Big River United Energy LLC Dyersville |
50 | 0 | 0 | |
|
Twin Bridges Park Delaware C.c.b. Manchester |
61 | 0 | 0 | |
|
R Place Masonville |
25 | 0 | 0 | |
|
Backbone State Park Dundee |
508 | 0 | 0 | |
|
Backbone Golf and Country Club Strawberry Point |
64 | 0 | 0 |
About this data
Water systems are matched to Delaware County, nearest to Delaware first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Iowa records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.