Tap WaterIndex

← California

Tap water quality report

Md 28 Ripperdan Self Help

EPA monitoring tested this supplier for 42 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
8
detected
48
people served
6
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Local government
Counties served
Madera

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

6
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-07-01 → 2011-07-31
MCL Health-based Resolved 2011-07-01 → 2011-07-31
MCL Health-based Resolved 2011-07-01 → 2011-07-31
MCL Health-based Resolved 2008-12-01 → 2008-12-31
MCL Health-based Resolved 2008-12-01 → 2008-12-31
MCL Health-based Resolved 2008-12-01 → 2008-12-31
MON Monitoring Resolved 2025-02-01 → 2025-02-28
MON Monitoring Resolved 2025-02-01 → 2025-02-28
MR Monitoring Resolved 2010-10-01 → 2010-12-31
MR Monitoring Resolved 2010-10-01 → 2010-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
4972 µg/L 50%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2018
1,2-DIBROMO-3-CHLOROPROPANE
0.0824 µg/L 41%
of the EPA limit 0.2000 µg/L
worst single sample: 0.0830 µg/L
12/12 SYR4 2012–2019
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2025
Arsenic
1.99 µg/L 20%
of the EPA limit 10 µg/L
worst single sample: 2 µg/L
2/2 SYR4 2015–2018
Barium
145.15 µg/L 7.3%
of the EPA limit 2000 µg/L
worst single sample: 150 µg/L
2/2 SYR4 2015–2018
Copper
14.585 µg/L 1.1%
of the EPA limit 1300 µg/L
worst single sample: 15 µg/L
2/3 SYR4 2014–2018
Chromium
4.65 µg/L 4.7%
of the EPA limit 100 µg/L
worst single sample: 4.7 µg/L
2/2 SYR4 2015–2018
Lead
1.4 µg/L 9.3%
of the EPA limit 15 µg/L
 1/2 SYR4 2015–2018
34 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAtrazineBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneEthylene DibromideEthylbenzeneFluorideLassoMercuryNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BROWN, CHAD
Phone
559-675-7820
Email
chad.brown@maderacounty.com

Frequently asked questions about Md 28 Ripperdan Self Help

Is Md 28 Ripperdan Self Help tap water safe to drink?

EPA monitoring detected 8 contaminants in Md 28 Ripperdan Self Help's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Md 28 Ripperdan Self Help's water?

EPA monitoring detected Nitrate, 1,2-DIBROMO-3-CHLOROPROPANE, Lead, Arsenic, Barium, and others. The full list with the level and data source for each is above.

How many people does Md 28 Ripperdan Self Help serve?

Md 28 Ripperdan Self Help reports serving 48 people in California, per its EPA record.

Has Md 28 Ripperdan Self Help had any water quality violations?

The EPA has 22 violations on file for Md 28 Ripperdan Self Help, of which 6 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.