Community Water System · PWS 084690485
Pine Ridge Hospital
Operator location Pine Ridge, EPA Region 8 — Tribal Water Systems - smaller served population (≤ 999) at 316 people served; 51 SDWIS violations on record from groundwater sources.
- 316
- People served (this PWS)
- 51
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Pine Ridge Hospital standing, mid SDWIS violation third
316 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 4% is middle-third health share (≤ 23%).
The verdict
Pine Ridge Hospital lands in the middle third by violation volume (51), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (316; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 4% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 51
- Total EPA violations on record
- 4%
- Health-based (MCL / treatment failure)
- 316
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 76
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 49
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MR | 3 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2025 |
| E. COLI | MR | 2 | 2024 |
| o-Dichlorobenzene | MR | 1 | 2020 |
| p-Dichlorobenzene | MR | 1 | 2020 |
| Vinyl chloride | MR | 1 | 2020 |
| trans-1,2-Dichloroethylene | MR | 1 | 2020 |
| 1,1,1-Trichloroethane | MR | 1 | 2020 |
| 1,2-Dichloropropane | MR | 1 | 2020 |
| Trichloroethylene | MR | 1 | 2020 |
| 1,1,2-Trichloroethane | MR | 1 | 2020 |
| Tetrachloroethylene | MR | 1 | 2020 |
| CHLOROBENZENE | MR | 1 | 2020 |
| Benzene | MR | 1 | 2020 |
| Toluene | MR | 1 | 2020 |
| Styrene | MR | 1 | 2020 |
| Antimony, Total | MR | 1 | 2020 |
| Thallium, Total | MR | 1 | 2020 |
| CYANIDE | MR | 1 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 2021 |
| Combined Uranium | MR | 1 | 2021 |
| Combined Radium (-226 and -228) | MR | 1 | 2021 |
| Radium-226 | MR | 1 | 2021 |
| Chlorine | MR | 1 | 2024 |
| Xylenes, Total | MR | 1 | 2020 |
| Radium-228 | MR | 1 | 2021 |
| Revised Total Coliform Rule | TT | 1 | 2024 |
| Selenium | MR | 1 | 2020 |
| Barium | MR | 1 | 2020 |
| Nickel | MR | 1 | 2020 |
Violation Count vs. the National Corpus
Pine Ridge Hospital has 51 recorded EPA violations, 57% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 43% carry more. 4% of this system's own violations are health-based (2 of 51), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
51 Around the middle fewer violations than 43% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Population served record for Pine Ridge Hospital
EPA SDWIS lists 316 people served and 76 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
51 violations · 316 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Pine Ridge Hospital
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in EPA Region 8 — Tribal Water Systems compares on the same EPA violation measures. EPA Region 8 — Tribal Water Systems systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.