Water quality for ZIP code 52036
ZIP 52036 covers Delaware in Delaware County, Iowa, one of 9 ZIP codes in the county. 28 active public water systems serve the county; 7 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Delaware County
7 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Earlville Muni Water Supply Earlville |
724 | 0 | |
| Hopkinton Municipal Utilities Hopkinton |
622 | 0 | |
| Delhi Water Supply Delhi |
420 | 0 | |
| Colesburg Water Supply Colesburg |
386 | 0 | |
| Ryan Water Supply Ryan |
350 | 1 | |
| Delaware Municipal Water Supply Delaware |
142 | 0 | |
| Penn Center INC Delhi |
89 | 0 |
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 |
|---|---|---|---|---|
|
Backbone State Park Dundee |
508 | 0 | 0 | |
|
Hart Ridge Golf Course Manchester |
167 | 0 | 0 | |
|
Hartwick Point Well Delhi |
120 | 0 | 0 | |
|
Pin Oak Pub & Links Manchester |
100 | 4 | 1 | |
|
Backbone Golf and Country Club Strawberry Point |
64 | 0 | 0 | |
|
Twin Bridges Park Delaware C.c.b. Manchester |
61 | 0 | 0 | |
|
Eip Manufacturing, LLC Earlville |
60 | 0 | 0 | |
|
Clair-View Acres Waterworks LLC Delhi |
56 | 0 | 0 | |
|
Baileys Ford Park Delaware Ccb Manchester |
55 | 0 | 0 | |
|
Big River United Energy LLC Dyersville |
50 | 0 | 0 | |
|
Lost Beach Resort Delhi |
50 | 1 | 0 | |
|
Rocky Nook Association, Inc. Delhi |
50 | 0 | 0 | |
|
Manchester Fish Hatchery Manchester |
43 | 0 | 0 | |
|
Dollar General (earlville) Earlville |
40 | 2 | 1 | |
|
Delhi Lakeview Estates Delhi |
35 | 2 | 1 | |
|
Big House Petersburg |
27 | 0 | 0 | |
|
Tri-State Raceway Earlville |
27 | 3 | 1 | |
|
Turtle Creek Park Delaware C.c.b. Manchester |
27 | 0 | 0 | |
|
Lazy T Campground Manchester |
25 | 2 | 0 | |
|
R Place Masonville |
25 | 0 | 0 |
About this data
Water systems are matched to Delaware County, the county this ZIP code lies in, largest 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.