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Tap water quality report

Prunedale Mwc

EPA monitoring tested this supplier for 79 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
15
detected
277
people served
40
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.

40
health-based violations
93
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2022-10-01 → 2022-12-31
MCL Health-based Resolved 2022-10-01 → 2022-12-31
MCL Health-based Resolved 2022-10-01 → 2022-12-31
MCL Health-based Resolved 2022-07-01 → 2022-09-30
MCL Health-based Resolved 2022-07-01 → 2022-09-30
MCL Health-based Resolved 2022-07-01 → 2022-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2013-07-01 → 2013-07-31

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
Arsenic
54.8 µg/L 548%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 690 µg/L
226/226 SYR4 2012–2019
Nitrate
11220.9 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 11526 µg/L
30/98 SYR4 2012–2019
Fluoride
196 µg/L 4.9%
of the EPA limit 4000 µg/L
worst single sample: 200 µg/L
9/12 SYR4 2012–2015
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 5/8 SYR4 2012–2015
Lead
0.0016 mg/L 11%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2023
Bromodichloromethane
2.9 µg/L
No EPA limit set
worst single sample: 3 µg/L
3/5 SYR4 2017–2019
Bromoform
9 µg/L
No EPA limit set
 3/5 SYR4 2017–2019
Dibromoacetic Acid
3 µg/L
No EPA limit set
 3/5 SYR4 2017–2019
Dibromochloromethane
6 µg/L
No EPA limit set
 3/5 SYR4 2017–2019
TTHM
18.8 µg/L 24%
of the EPA limit 80 µg/L
worst single sample: 19 µg/L
3/5 SYR4 2017–2019
Total Haloacetic Acids (HAA5)
3.9 µg/L 6.5%
of the EPA limit 60 µg/L
worst single sample: 4 µg/L
3/5 SYR4 2017–2019
Chloroform
1.95 µg/L
No EPA limit set
worst single sample: 2 µg/L
2/5 SYR4 2017–2019
Chromium
13.69 µg/L 14%
of the EPA limit 100 µg/L
worst single sample: 14 µg/L
2/8 SYR4 2012–2015
Lead
0.8565 µg/L 5.7%
of the EPA limit 15 µg/L
worst single sample: 0.8900 µg/L
2/4 SYR4 2012
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/5 SYR4 2017–2019
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KANTMANN, CHRISTOPHER
Phone
831-682-1618
Email
KANTMANN@MAC.COM

Frequently asked questions about Prunedale Mwc

Is Prunedale Mwc tap water safe to drink?

EPA monitoring detected 15 contaminants in Prunedale Mwc'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 Prunedale Mwc's water?

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

How many people does Prunedale Mwc serve?

Prunedale Mwc reports serving 277 people in California, per its EPA record.

Has Prunedale Mwc had any water quality violations?

The EPA has 93 violations on file for Prunedale Mwc, of which 40 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.