Community Water System · PWS 084690512
Red Cloud School
Operator location Pine Ridge, EPA Region 8 — Tribal Water Systems - smaller served population (≤ 999) at 501 people served; 46 SDWIS violations on record from groundwater sources.
- 501
- People served (this PWS)
- 46
- EPA violations (this PWS)
- 1
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Red Cloud School standing, mid SDWIS violation third
501 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #28,649 of 29,740 among systems serving 500+.
The verdict
Red Cloud School lands in the middle third by violation volume (46), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (501; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #28,649 of 29,740
- Population · /systems
- #54 of 55
- Population · 08
- 46
- Total EPA violations on record
- 2%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 21
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 43
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 11 | 2007 |
| Lead and Copper Rule | MR | 2 | 2024 |
| 1,1-Dichloroethylene | MR | 1 | 1999 |
| 1,1,1-Trichloroethane | MR | 1 | 1999 |
| Vinyl chloride | MR | 1 | 1999 |
| cis-1,2-Dichloroethylene | MR | 1 | 1999 |
| 1,2-Dichloropropane | MR | 1 | 1999 |
| Ethylbenzene | MR | 1 | 1999 |
| CHLOROBENZENE | MR | 1 | 1999 |
| Styrene | MR | 1 | 1999 |
| Tetrachloroethylene | MR | 1 | 1999 |
| trans-1,2-Dichloroethylene | MR | 1 | 1999 |
| Xylenes, Total | MR | 1 | 1999 |
| DICHLOROMETHANE | MR | 1 | 1999 |
| 1,2,4-Trichlorobenzene | MR | 1 | 1999 |
| 1,1,2-Trichloroethane | MR | 1 | 1999 |
| Groundwater Rule | TT | 1 | 2020 |
| Selenium | MR | 1 | 1983 |
| Mercury | MR | 1 | 1983 |
| Chromium | MR | 1 | 1983 |
| Cadmium | MR | 1 | 1983 |
| Nitrate | MR | 1 | 1983 |
| Trichloroethylene | MR | 1 | 1999 |
| Arsenic | MR | 1 | 1983 |
| Toluene | MR | 1 | 1999 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1982 |
| Consumer Confidence Rule | Other | 1 | 2025 |
| Carbon tetrachloride | MR | 1 | 1999 |
| p-Dichlorobenzene | MR | 1 | 1999 |
| Fluoride | MR | 1 | 1983 |
Violation Count vs. the National Corpus
Red Cloud School has 46 recorded EPA violations, 54% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 45% carry more. 2% of this system's own violations are health-based (1 of 46), and it ranks #28,649 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
46 Around the middle fewer violations than 45% 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 Red Cloud School
EPA SDWIS lists 501 people served and 21 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
46 violations · 501 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.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Red Cloud School
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.