Community Water System · PWS ID2350025
Red Rock Water LLC
Operator location Lewiston, Idaho - 33% of 521 violations are health-based (upper-third health share (> 23%)); groundwater source; 60 served per SDWIS.
- 60
- People served (this PWS)
- 521
- EPA violations (this PWS)
- 173
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Red Rock Water LLC standing, high SDWIS violation third
33% of 521 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 33% is upper-third health share (> 23%).
The verdict
Red Rock Water LLC sits in the upper third of the sitemap cohort by violation count (521), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (60; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 33% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 521
- Total EPA violations on record
- 33%
- Health-based (MCL / treatment failure)
- 60
- 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
- Private
- Connections
- 40
- County
- Nez Perce
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 305
- Treatment Tech Violations
- 171
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | TT | 171 | 2018 |
| Public Notice | Other | 31 | 2018 |
| Groundwater Rule | MR | 21 | 2024 |
| Chlorine | MR | 20 | 2024 |
| Revised Total Coliform Rule | MON | 18 | 2023 |
| E. COLI | MR | 15 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 12 | 2023 |
| TTHM | MR | 11 | 2020 |
| Lead and Copper Rule | MR | 7 | 2020 |
| Nitrate | MR | 4 | 2019 |
| Picloram | MR | 4 | 2019 |
| Dinoseb | MR | 4 | 2019 |
| Dalapon | MR | 4 | 2019 |
| 2,4,5-TP | MR | 4 | 2019 |
| Pentachlorophenol | MR | 4 | 2019 |
| 2,4-D | MR | 4 | 2019 |
| Nickel | MR | 3 | 2017 |
| Antimony, Total | MR | 3 | 2017 |
| Beryllium, Total | MR | 3 | 2017 |
| Thallium, Total | MR | 3 | 2017 |
| Fluoride | MR | 3 | 2017 |
| CYANIDE | MR | 3 | 2017 |
| Chlordane | MR | 3 | 2017 |
| ETHYLENE DIBROMIDE | MR | 3 | 2017 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2017 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 2017 |
| HEXACHLOROBENZENE | MR | 3 | 2017 |
| Atrazine | MR | 3 | 2017 |
| Hexachlorocyclopentadiene | MR | 3 | 2017 |
| Simazine | MR | 3 | 2017 |
Violation Count vs. the National Corpus
Red Rock Water LLC has 521 recorded EPA violations, 96% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 4% carry more. 33% of this system's own violations are health-based (173 of 521), 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)
521 Higher than most more violations than 96% 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
Health-based violations on Red Rock Water LLC
173 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for ID2350025.
Sources: EPA SDWIS
Nationwide peers
521 violations · 60 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Red Rock Water LLC
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Idaho compares on the same EPA violation measures. Idaho 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.