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Tap water quality report

Shamrock Mobile Home Park

EPA monitoring tested this supplier for 70 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
11
detected
188
people served
34
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Sonoma

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.

34
health-based violations
65
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MCL Health-based Resolved 2012-07-01 → 2012-09-30
MCL Health-based Resolved 2012-07-01 → 2012-09-30
MCL Health-based Resolved 2012-04-01 → 2012-06-30
MCL Health-based Resolved 2012-04-01 → 2012-06-30
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2012-01-01 → 2012-03-31
MCL Health-based Resolved 2011-10-01 → 2011-12-31
MCL Health-based Resolved 2011-10-01 → 2011-12-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Arsenic
24 µg/L 240%
of the EPA limit, in the worst sample — 10 µg/L
 131/132 SYR4 2012–2019
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2024
Bromodichloromethane
1.3 µg/L
No EPA limit set
 3/3 SYR4 2013–2018
Dibromochloromethane
2.4 µg/L
No EPA limit set
 3/3 SYR4 2013–2018
TTHM
6.6 µg/L 8.2%
of the EPA limit 80 µg/L
 3/3 SYR4 2013–2018
Barium
150 µg/L 7.5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Bromoform
3.1 µg/L
No EPA limit set
 2/3 SYR4 2013–2018
Dibromoacetic Acid
1.33 µg/L
No EPA limit set
 2/3 SYR4 2013–2018
Fluoride
290 µg/L 7.2%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Nitrate
650 µg/L 6.5%
of the EPA limit 10000 µg/L
 2/24 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
1.33 µg/L 2.2%
of the EPA limit 60 µg/L
 2/3 SYR4 2013–2018
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARTIN, ALAN
Phone
707-318-1569
Email
alan_shamrockmhp@outlook.com

Frequently asked questions about Shamrock Mobile Home Park

Is Shamrock Mobile Home Park tap water safe to drink?

EPA monitoring detected 11 contaminants in Shamrock Mobile Home Park'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 Shamrock Mobile Home Park's water?

EPA monitoring detected Arsenic, Lead, Bromodichloromethane, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Shamrock Mobile Home Park serve?

Shamrock Mobile Home Park reports serving 188 people in California, per its EPA record.

Has Shamrock Mobile Home Park had any water quality violations?

The EPA has 65 violations on file for Shamrock Mobile Home Park, of which 34 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.