Apr 15, 2026 · 7 min read
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PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
Texas · 839,006 people served · 196 water systems
ZIP code 77027 is in Texas and is a large city from a drinking-water-service perspective, with 839,006 people served by 196 EPA-registered public water systems. It overlaps with 2 communities including HOUSTON, SAVANNAH.
Within ZIP code 77027, the EPA Safe Drinking Water Information System (SDWIS) records 54 health-based violations during the past five years across 196 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
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HARRIS COUNTY MUD 457
PWSID: TX1013576
5,967 served
MONTGOMERY COUNTY MUD 105
PWSID: TX1700837
3,282 served
HARRIS COUNTY MUD 495
PWSID: TX1013532
5,007 served
FORT BEND COUNTY MUD 122
PWSID: TX0790416
3,366 served
FORT BEND COUNTY MUD 24
PWSID: TX0790468
3,177 served
HARRIS COUNTY MUD 290
PWSID: TX1013294
8,259 served
HARRIS COUNTY MUD 468
PWSID: TX1013369
7,944 served
RENN ROAD MUD
PWSID: TX1011834
4,464 served
HARRIS COUNTY MUD 264
PWSID: TX1012330
3,573 served
HARRIS COUNTY MUD 383
PWSID: TX1013213
4,881 served
HARRIS COUNTY MUD 120
PWSID: TX1010774
10,983 served
WALLER COUNTY MUD 37
PWSID: TX2370146
207 served
BAYBROOK MUD 1
PWSID: TX1012698
3,087 served
HARRIS COUNTY MUD 147
PWSID: TX1011243
3,003 served
SUGAR PINES MHP
PWSID: TX1810103
170 served
HIGHLAND MEADOWS MOBILE HOME PARK
PWSID: TX1010914
87 served
SUBURBAN MOBILE HOME PARK 2
PWSID: TX1010760
120 served
WESTFIELD MEADOWS
PWSID: TX1010584
72 served
HARRIS COUNTY MUD 358
PWSID: TX1012969
222 served
WILLOW CREEK FARMS MUD
PWSID: TX2370089
3,453 served
CINCO SOUTHWEST MUD 3 DAYCARE
PWSID: TX0790521
5,187 served
HARRIS COUNTY MUD 167
PWSID: TX1012842
16,761 served
FORT BEND COUNTY MUD 190
PWSID: TX0790501
5,049 served
CINCO SOUTHWEST MUD 2
PWSID: TX0790481
5,496 served
WEST HARRIS COUNTY REGIONAL WATER AUTHOR
PWSID: TX1013303
0 served
HARRIS COUNTY MUD 222
PWSID: TX1013054
6,129 served
CINCO MUD 3
PWSID: TX0790292
2,517 served
SIENNA PLANTATION MANAGEMENT DISTRICT
PWSID: TX0790493
4,179 served
SIENNA MUD 4
PWSID: TX0790489
6,435 served
NORTHEAST HARRIS COUNTY MUD 1 SHELDON RI
PWSID: TX1013448
1,788 served
NORTH FORT BEND WATER AUTHORITY
PWSID: TX0790511
0 served
NORTHEAST HARRIS COUNTY MUD 1 EDGEWOOD V
PWSID: TX1013449
1,842 served
CINCO MUD 12
PWSID: TX0790344
2,274 served
HARRIS COUNTY MUD 6 CARRIAGE LANE
PWSID: TX1010496
3,936 served
FORT BEND COUNTY MUD 30
PWSID: TX0790146
15,798 served
FORT BEND COUNTY MUD 119
PWSID: TX0790382
5,088 served
MUNICIPAL GROUNDWATER SOLUTIONS
PWSID: TX2270369
0 served
HARRIS COUNTY MUD 287
PWSID: TX1013385
3,510 served
GRAND OAKS MUD
PWSID: TX1700757
2,013 served
CYPRESSWOOD UTILITY DISTRICT
PWSID: TX1010432
4,305 served
HARRIS COUNTY WCID 161
PWSID: TX1013612
3,129 served
HARRIS COUNTY FWSD 51
PWSID: TX1010238
19,671 served
HARRIS COUNTY MUD 432
PWSID: TX1013378
4,782 served
HARRIS COUNTY MUD 423
PWSID: TX1013691
4,044 served
FORT BEND COUNTY MUD 189
PWSID: TX0790497
624 served
FORT BEND COUNTY MUD 130
PWSID: TX0790371
3,150 served
HARRIS COUNTY MUD 542
PWSID: TX1013573
2,592 served
HARRIS COUNTY MUD 321
PWSID: TX1012913
882 served
MONTGOMERY COUNTY MUD 185
PWSID: TX1700934
195 served
BRAZORIA COUNTY MUD 40
PWSID: TX0200754
1,986 served
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
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