Community Water System · PWS CA3700934
Pauma Valley Water Company
Operator location Pauma Valley, California - 54% of 157 violations are health-based (upper-third health share (> 23%)); groundwater source; 185 served per SDWIS.
- 185
- People served (this PWS)
- 157
- EPA violations (this PWS)
- 85
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Pauma Valley Water Company standing, high SDWIS violation third
54% of 157 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 54% is upper-third health share (> 23%).
The verdict
Pauma Valley Water Company sits in the upper third of the sitemap cohort by violation count (157), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (185; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 54% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 157
- Total EPA violations on record
- 54%
- Health-based (MCL / treatment failure)
- 185
- 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
- 74
- County
- San Diego
- School/Daycare
- No
- MCL Violations
- 82
- Monitoring Violations
- 39
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 50 | 2025 |
| Coliform (TCR) | MR | 16 | 2013 |
| Selenium | MCL | 12 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 12 | 2023 |
| Consumer Confidence Rule | Other | 6 | 2015 |
| Coliform (TCR) | MCL | 6 | 2007 |
| Combined Uranium | MR | 4 | 2017 |
| Nitrite | MR | 4 | 2017 |
| Lead and Copper Rule | MR | 3 | 2017 |
| TTHM | MR | 2 | 2011 |
| Nitrate | MR | 2 | 2016 |
| Chromium | MR | 2 | 2016 |
| Benzene | MR | 2 | 2016 |
| Interim Enhanced Surface Water Treatment Rule | TT | 2 | 2010 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Bromate | MCL | 2 | 2007 |
| Arsenic | MR | 2 | 2016 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 1 | 2010 |
Violation Count vs. the National Corpus
Pauma Valley Water Company has 157 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 54% of this system's own violations are health-based (85 of 157), 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)
157 Higher than most more violations than 82% 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 Pauma Valley Water Company
85 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CA3700934.
Sources: EPA SDWIS · California State Water Resources Control Board, Division of Drinking Water
Nationwide peers
157 violations · 185 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 Pauma Valley Water Company
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in California compares on the same EPA violation measures. California 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.