Pine Ridge Water Quality
South Dakota
The tap water in Pine Ridge, South Dakota is served by 18 EPA-regulated water systems covering approximately 24,749 people. 36 health-based violations are on record, most recently for 1005 in 2025. Data source: EPA Safe Drinking Water Information System.
Drinking water in Pine Ridge, South Dakota is delivered through 18 EPA-regulated community water systems serving an estimated 24,749 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
The SDWIS record for Pine Ridge shows 36 total violations across all 18 systems, of which 36 are health-based, meaning either a Maximum Contaminant Level (MCL) was exceeded or a required treatment technique was not followed. Contaminants cited in health-based violations include 1005, 8000, 0700, 0800, 4006 and 1 others.
A past EPA violation does not mean the water is currently unsafe, utilities are required to notify customers and remediate under state primacy oversight. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the South Dakota drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| PINE RIDGE WATER SYSTEM | 7,482 | 3 | Health |
| KYLE WATER SYSTEM | 6,526 | 2 | Health |
| OGLALA RWS PIPELINE | 3,562 | 1 | Health |
| WANBLEE EAST | 2,179 | 5 | Health |
| WHITE HORSE CREEK WATER SYSTEM | 1,690 | 0 | Clean |
| WANBLEE WATER SYSTEM | 773 | 0 | Clean |
| RED CLOUD SCHOOL | 501 | 1 | Health |
| ALLEN WATER SYSTEM | 420 | 0 | Clean |
| SUNRISE WATER SYSTEM | 380 | 0 | Clean |
| PINE RIDGE HOSPITAL | 316 | 2 | Health |
| WOUNDED KNEE WATER SYSTEM | 255 | 3 | Health |
| EAGLE NEST HOMES | 195 | 0 | Clean |
| RED ROCKS WATER SYSTEM | 125 | 0 | Clean |
| POTATO CREEK WATER SYSTEM | 95 | 0 | Clean |
| NORTH MARTIN WATER SYSTEM | 78 | 14 | Health |
| WAKPAMNI WATER SYSTEM | 70 | 2 | Health |
| WOLF CREEK WATER SYSTEM | 65 | 1 | Health |
| NORTH ALLEN WATER SYSTEM | 37 | 2 | Health |
Does this city have health-based water violations?
Health-based violations indicate contaminant levels that exceeded EPA maximum contaminant levels (MCLs). This does not necessarily mean water is currently unsafe.
| Contaminant | Begin Date |
|---|---|
| 1005 | 2025-04-01 |
| 1005 | 2025-04-01 |
| 8000 | 2024-09-17 |
| 1005 | 2023-04-01 |
| 1005 | 2023-04-01 |
| 1005 | 2023-04-01 |
| 0700 | 2022-10-07 |
| 0700 | 2022-10-07 |
| 0800 | 2022-09-08 |
| 0800 | 2022-09-08 |
| 0800 | 2022-09-03 |
| 0800 | 2022-08-25 |
| 0800 | 2022-08-25 |
| 1005 | 2022-01-01 |
| 1005 | 2022-01-01 |
| 1005 | 2021-10-01 |
| 1005 | 2021-10-01 |
| 1005 | 2021-07-01 |
| 1005 | 2021-07-01 |
| 1005 | 2021-04-01 |
| 1005 | 2021-04-01 |
| 1005 | 2021-01-01 |
| 1005 | 2021-01-01 |
| 1005 | 2020-10-01 |
| 1005 | 2020-10-01 |
| 0700 | 2020-01-11 |
| 0700 | 2020-01-01 |
| 4006 | 2019-10-01 |
| 0700 | 2019-03-01 |
| 0700 | 2019-03-01 |
| 0700 | 2018-08-02 |
| 0700 | 2018-08-02 |
| 0700 | 2018-07-24 |
| 0700 | 2018-07-24 |
| 0700 | 2017-07-01 |
| 3100 | 2015-12-01 |
Frequently Asked Questions
Is Pine Ridge, South Dakota water safe to drink? ▼
How many water violations does Pine Ridge have? ▼
What contaminants were found in Pine Ridge water? ▼
How many water systems serve Pine Ridge? ▼
Where does Pine Ridge get its drinking water? ▼
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). Violations are reported by state agencies to EPA and include both health-based (MCL exceedances) and monitoring/reporting violations.
A reported violation does not necessarily mean water is currently unsafe to drink. Many violations are resolved quickly, and public water systems are required to notify customers of significant issues. For current water quality, contact your local water utility.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.