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Pauma Valley Water Company

EPA monitoring tested this supplier for 74 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
13
detected
185
people served
90
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Diego

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.

90
health-based violations
159
violations on file
3
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
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

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
16000 µg/L 160%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 26000 µg/L
830/844 SYR4 2012–2019
Fluoride
452 µg/L 11%
of the EPA limit 4000 µg/L
worst single sample: 460 µg/L
17/19 SYR4 2012–2019
Barium
85.5 µg/L 4.3%
of the EPA limit 2000 µg/L
worst single sample: 89 µg/L
11/17 SYR4 2012–2019
Selenium
23.55 µg/L 47%
of the EPA limit 50 µg/L
worst single sample: 24 µg/L
10/17 SYR4 2012–2019
Combined Uranium
9.2231 µg/L 31%
of the EPA limit 30 µg/L
worst single sample: 10.579 µg/L
8/9 SYR4 2016–2019
Arsenic
9.22 µg/L 92%
of the EPA limit 10 µg/L
worst single sample: 9.4 µg/L
5/17 SYR4 2012–2019
Nitrate-Nitrite
16200 µg/L 162%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 17000 µg/L
5/5 SYR4 2019
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2024
Gross Beta Particle Activity
6.187 pCi/L
No EPA limit set
worst single sample: 6.36 pCi/L
3/3 SYR4 2019
Dichloromethane
0.5570 µg/L 11%
of the EPA limit 5 µg/L
worst single sample: 0.5600 µg/L
2/16 SYR4 2012–2019
Antimony, Total
6.7 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
 1/17 SYR4 2012–2019
Lead
2.5 µg/L 17%
of the EPA limit 15 µg/L
 1/15 SYR4 2012–2019
Nitrite
0.1200 µg/L 0%
of the EPA limit 1000 µg/L
 1/26 SYR4 2012–2019
61 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-DAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JOHNSON, LORI
Phone
760-802-2692
Email
lajsn1234@gmail.com

Frequently asked questions about Pauma Valley Water Company

Is Pauma Valley Water Company tap water safe to drink?

EPA monitoring detected 13 contaminants in Pauma Valley Water Company'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 Pauma Valley Water Company's water?

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

How many people does Pauma Valley Water Company serve?

Pauma Valley Water Company reports serving 185 people in California, per its EPA record.

Has Pauma Valley Water Company had any water quality violations?

The EPA has 159 violations on file for Pauma Valley Water Company, of which 90 are health-based (a contaminant limit or required treatment was breached) and 3 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.