Water quality for ZIP code 77456
ZIP 77456 covers Markham in Matagorda County, Texas, one of 12 ZIP codes in the county. 45 active public water systems serve the county; 29 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Matagorda County
25 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Markham MUD |
1,400 | 0 | 5.4 mi | |
| City of Bay City |
18,061 | 5 | 7.2 mi | |
| Eldorado Water |
120 | 4 | 7.7 mi | |
| Frost Mobile Home Park |
84 | 5 | 9.3 mi | |
| Matagorda County Wcid 6 |
1,518 | 1 | 10.4 mi | |
| Midfield WSC |
426 | 2 | 11.5 mi | |
| Spanish Bit Plantation Subdivision |
126 | 1 | 11.9 mi | |
| Oak Hollow Subdivision |
78 | 0 | 13.3 mi | |
| Live Oak Landing Subdivision |
30 | 1 | 13.8 mi | |
| Tidewater Oaks Subdivision |
189 | 2 | 14.5 mi | |
| Matagorda County Wcid 5 |
1,128 | 1 | 15.2 mi | |
| Tres Palacios Oaks Subdivision |
774 | 0 | 15.5 mi | |
| Wadsworth WSC |
570 | 0 | 16.1 mi | |
| Selkirk WSC |
678 | 3 | 19.6 mi | |
| Holiday Harbor Subdivision |
75 | 4 | 24.4 mi | |
| Matagorda WSC |
1,746 | 4 | 24.5 mi | |
| City of Palacios |
4,700 | 1 | 25.2 mi | |
| Hubert Watson Subdivision |
108 | 3 | 25.7 mi | |
| Waypoint Landing |
54 | 2 | 25.9 mi | |
| River Bend Water Services |
100 | 2 | 26.2 mi | |
| Letulle Estates Chinquapin 1 |
150 | 0 | 26.3 mi | |
| Camelot Forest Water System |
297 | 1 | 27.6 mi | |
| Matagorda Dunes Subdivision |
429 | 0 | 30.7 mi | |
| Caney Creek MUD of Matagorda County |
2,764 | 3 | 31.1 mi | |
| Matagorda County Wcid 2 |
564 | 4 | 33.5 mi |
Non-community systems in Matagorda County (19: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Berts RV Park |
60 | 0 | 0 | |
|
City of Bay City Letulle Park |
70 | 1 | 0 | |
|
Matagorda County Nature Center |
52 | 2 | 1 | |
|
Nile Valley RV Park |
28 | 0 | 0 | |
|
Riverside Park Water Bay City |
100 | 1 | 0 | |
|
Rio Colorado Golf Course |
100 | 1 | 0 | |
|
Dollar General Bay City Store 18534 |
150 | 0 | 0 | |
|
Tidehaven Consolidated JR & SR High Tisd |
500 | 0 | 0 | |
|
Sugar Valley RV Resort |
157 | 2 | 1 | |
|
Oxea Corporation Bay City Plant |
192 | 1 | 0 | |
|
Old Oaks Resort |
162 | 1 | 0 | |
|
TC Country Store |
203 | 0 | 0 | |
|
Stonebridge RV Park |
321 | 0 | 0 | |
|
SH RV Park |
22 | 0 | 0 | |
|
Nsc Ntf Potable Water System |
502 | 0 | 0 | |
|
Main Potable Water System |
603 | 0 | 0 | |
|
Equistar Matagorda Plant |
210 | 0 | 0 | |
|
Bowers Shrimp Farm |
75 | 1 | 0 | |
|
Lighthouse Landing RV Park |
55 | 1 | 0 |
About this data
Water systems are matched to Matagorda County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
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 Texas 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.