County · Oklahoma
Grady County, Oklahoma: drinking water records
This overview covers 11 ZIP codes and 16 community water systems in Grady County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Chickasha Municipal Authority OK1010821 | 16,036 | 120 | 0 | 24 | 3.8 ppb |
| Tuttle OK2002608 | 4,500 | 180 | 3 | 1 | 2.6 ppb |
| Grady Co Rwd #6 OK3002603 | 3,930 | 60 | 0 | 1 | 0 ppb |
| Grady Co Rwd #7 (Ninnekah) OK2002633 | 2,425 | 0 | 0 | 1 | 0 ppb |
| Minco OK2002610 | 1,632 | 0 | 0 | 1 | 0 ppb |
| Norge Water and Sewer Co., INC OK3002601 | 890 | 0 | 0 | 3 | 0 ppb |
| Alex OK2002603 | 635 | 0 | 0 | 1 | 0 ppb |
| Grady Co Rwd #2 OK2002605 | 455 | 0 | 0 | 11 | 0 ppb |
| Grady Co Rwd #1 OK2002604 | 300 | 0 | 0 | 1 | 0 ppb |
| Grady Co Rwd #3 OK2002607 | 80 | 0 | 0 | 1 | 0 ppb |
| Country MHP OK4002610 | 50 | 0 | 0 | 1 | 3.1 ppb |
| Winter Creek Water Company, LLC OK4002663 | 46 | 0 | 0 | 1 | 6.8 ppb |
| Eastside MHP OK4002654 | 32 | 0 | 0 | 13 | 0 ppb |
| Rush Springs OK2002609 | 1,278 | 0 | 0 | 0 | 1.3 ppb |
| Verden OK4002619 | 659 | 0 | 0 | 0 | 2.1 ppb |
| Southern Hills Estates OK2002664 | 200 | 0 | 0 | 0 | 1.8 ppb |
ZIP reports in Grady County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.