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Tap water quality report

Woodland Park Mutual Water Co

EPA monitoring tested this supplier for 53 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

53
contaminants tested
8
detected
538
people served
12
health-based violations
Water source
Ground water
Ownership
Private
Counties served
San Luis Obispo

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.

12
health-based violations
23
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-04-01 → 2025-06-30
MCL Health-based Archived 2025-01-01 → 2025-03-31
MCL Health-based Archived 2024-10-01 → 2024-12-31
MCL Health-based Archived 2024-07-01 → 2024-09-30
MCL Health-based Archived 2024-04-01 → 2024-06-30
MCL Health-based Archived 2024-01-01 → 2024-03-31
MCL Health-based Archived 2023-10-01 → 2023-12-31

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
Nitrate
17800 µg/L 178%
of the EPA limit, in the worst sample — 10000 µg/L
132/132 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
5/5 LCR 2026
Bromoform
6.6 µg/L
No EPA limit set
1/1 SYR4 2019
Dibromoacetic Acid
1.7 µg/L
No EPA limit set
1/1 SYR4 2019
Dibromochloromethane
1.4 µg/L
No EPA limit set
1/1 SYR4 2019
Nitrate-Nitrite
8100 µg/L 81%
of the EPA limit 10000 µg/L
1/1 SYR4 2018
Selenium
6.8 µg/L 14%
of the EPA limit 50 µg/L
1/3 SYR4 2012–2018
TTHM
8.1 µg/L 10%
of the EPA limit 80 µg/L
1/1 SYR4 2019
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAtrazineBariumBenzeneBeryllium, TotalBromodichloromethaneChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumCombined UraniumDichloromethaneDichloroacetic AcidEthylbenzeneFluorideLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
_JOHNSON, GAIL
Phone
805-343-0101
Email
wpmwc@AOL.com

Frequently asked questions about Woodland Park Mutual Water Co

Is Woodland Park Mutual Water Co tap water safe to drink?

EPA monitoring detected 8 contaminants in Woodland Park Mutual Water Co'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 Woodland Park Mutual Water Co's water?

EPA monitoring detected Nitrate, Lead, Bromoform, Dibromoacetic Acid, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Woodland Park Mutual Water Co serve?

Woodland Park Mutual Water Co reports serving 538 people in California, per its EPA record.

Has Woodland Park Mutual Water Co had any water quality violations?

The EPA has 23 violations on file for Woodland Park Mutual Water Co, of which 12 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.