Community Water System · PWS CA2000595
Madera Mh & RV Park
Operator location Madera, California - smaller served population (≤ 999) at 450 people served; 161 SDWIS violations on record from groundwater sources.
- 450
- People served (this PWS)
- 161
- EPA violations (this PWS)
- 11
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Madera Mh & RV Park standing, high SDWIS violation third
450 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 7% is middle-third health share (≤ 23%).
The verdict
Madera Mh & RV Park sits in the upper third of the sitemap cohort by violation count (161), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (450; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 7% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 161
- Total EPA violations on record
- 7%
- Health-based (MCL / treatment failure)
- 450
- 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
- 99
- County
- Madera
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 150
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2015 |
| Coliform (TCR) | MCL | 11 | 2007 |
| Endrin | MR | 3 | 2021 |
| Toxaphene | MR | 3 | 2021 |
| Diquat | MR | 3 | 2021 |
| Endothall | MR | 3 | 2021 |
| Glyphosate | MR | 3 | 2021 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2021 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2021 |
| Picloram | MR | 3 | 2021 |
| Dinoseb | MR | 3 | 2021 |
| Carbofuran | MR | 3 | 2021 |
| Atrazine | MR | 3 | 2021 |
| LASSO | MR | 3 | 2021 |
| 2,3,7,8-TCDD | MR | 3 | 2021 |
| Heptachlor epoxide | MR | 3 | 2021 |
| 2,4-D | MR | 3 | 2021 |
| 2,4,5-TP | MR | 3 | 2021 |
| Benzo(a)pyrene | MR | 3 | 2021 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 2021 |
| Chromium | MR | 3 | 2021 |
| Mercury | MR | 3 | 2021 |
| Nickel | MR | 3 | 2021 |
| Beryllium, Total | MR | 3 | 2021 |
| Selenium | MR | 3 | 2021 |
| Lead and Copper Rule | MR | 3 | 2020 |
| Barium | MR | 3 | 2021 |
| Dalapon | MR | 3 | 2021 |
| Methoxychlor | MR | 3 | 2021 |
| HEXACHLOROBENZENE | MR | 3 | 2021 |
Violation Count vs. the National Corpus
Madera Mh & RV Park has 161 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 7% of this system's own violations are health-based (11 of 161), 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)
161 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
Population served record for Madera Mh & RV Park
EPA SDWIS lists 450 people served and 99 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · California State Water Resources Control Board, Division of Drinking Water
Nationwide peers
161 violations · 450 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 Madera Mh & RV Park
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.