Water quality in Masonville, Iowa
Masonville 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
Other community water systems in Delaware County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ryan Water Supply Ryan |
350 | 1 | 10.4 mi | |
| Delaware Municipal Water Supply Delaware |
142 | 0 | 12.6 mi | |
| Delhi Water Supply Delhi |
420 | 0 | 13.7 mi | |
| Penn Center INC Delhi |
89 | 0 | 13.9 mi | |
| Earlville Muni Water Supply Earlville |
724 | 0 | 17.6 mi | |
| Hopkinton Municipal Utilities Hopkinton |
622 | 0 | 20.0 mi | |
| Colesburg Water Supply Colesburg |
386 | 0 | 22.7 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 |
|---|---|---|---|---|
|
R Place Masonville |
25 | 0 | 0 | |
|
Hart Ridge Golf Course Manchester |
167 | 0 | 0 | |
|
Pin Oak Pub & Links Manchester |
100 | 4 | 1 | |
|
Backbone State Park Dundee |
508 | 0 | 0 | |
|
Baileys Ford Park Delaware Ccb Manchester |
55 | 0 | 0 | |
|
Lazy T Campground Manchester |
25 | 2 | 0 | |
|
Manchester Fish Hatchery Manchester |
43 | 0 | 0 | |
|
Backbone Golf and Country Club Strawberry Point |
64 | 0 | 0 | |
|
Delhi Lakeview Estates Delhi |
35 | 2 | 1 | |
|
Turtle Creek Park Delaware C.c.b. Manchester |
27 | 0 | 0 | |
|
Hartwick Point Well Delhi |
120 | 0 | 0 | |
|
Lost Beach Resort Delhi |
50 | 1 | 0 | |
|
Rocky Nook Association, Inc. Delhi |
50 | 0 | 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 | |
|
Twin Bridges Park Delaware C.c.b. Manchester |
61 | 0 | 0 | |
|
Big House Petersburg |
27 | 0 | 0 | |
|
Big River United Energy LLC Dyersville |
50 | 0 | 0 |
About this data
Water systems are matched to Delaware County, nearest to Masonville 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.