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Tap water quality report

Jost Post Wa

EPA monitoring tested this supplier for 39 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

39
contaminants tested
3
detected
56
people served
16
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Monterey

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.

16
health-based violations
37
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-06-01 → 2010-06-30
MCL Health-based Resolved 2010-06-01 → 2010-06-30
MCL Health-based Resolved 2010-03-01 → 2010-03-31
MCL Health-based Resolved 2010-03-01 → 2010-03-31
MCL Health-based Resolved 2010-02-01 → 2010-02-28
MCL Health-based Resolved 2010-02-01 → 2010-02-28
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2003-02-01 → 2003-02-28

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2025
Nitrate
600 µg/L 6%
of the EPA limit 10000 µg/L
 4/20 SYR4 2012–2019
Nitrite
400 µg/L 40%
of the EPA limit 1000 µg/L
 1/2 SYR4 2015–2018
36 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAtrazineBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneLassoOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MCGEE, MICK
Phone
831-772-6276
Email
siriusgold@comcast.net

Frequently asked questions about Jost Post Wa

Is Jost Post Wa tap water safe to drink?

EPA monitoring detected 3 contaminants in Jost Post Wa'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 Jost Post Wa's water?

EPA monitoring detected Lead, Nitrate, Nitrite. The full list with the level and data source for each is above.

How many people does Jost Post Wa serve?

Jost Post Wa reports serving 56 people in California, per its EPA record.

Has Jost Post Wa had any water quality violations?

The EPA has 37 violations on file for Jost Post Wa, of which 16 are health-based (a contaminant limit or required treatment was breached) and 1 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.