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Tap water quality report

Camp Jones Gulch

EPA monitoring tested this supplier for 79 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
19
detected
357
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Mateo

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.

0
health-based violations
5
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2017-01-01 → 2019-12-31
MR Monitoring Resolved 2008-11-01 → 2008-11-30
MR Monitoring Resolved 2008-11-01 → 2008-11-30
MR Monitoring Resolved 1996-07-01 → 1996-07-31

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
Lead
0.0058 mg/L 39%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2026
Bromodichloromethane
36.55 µg/L
No EPA limit set
worst single sample: 53 µg/L
8/8 SYR4 2016–2019
Bromoform
9.46 µg/L
No EPA limit set
worst single sample: 11 µg/L
8/8 SYR4 2016–2019
Dibromochloromethane
35.05 µg/L
No EPA limit set
worst single sample: 48 µg/L
8/8 SYR4 2016–2019
TTHM
113.79 µg/L 142%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 156 µg/L
8/8 SYR4 2016–2019
Chloroform
36.5 µg/L
No EPA limit set
worst single sample: 44 µg/L
7/8 SYR4 2016–2019
Fluoride
268 µg/L 6.7%
of the EPA limit 4000 µg/L
worst single sample: 270 µg/L
5/5 SYR4 2012–2018
Dibromoacetic Acid
5.715 µg/L
No EPA limit set
worst single sample: 6.3 µg/L
4/5 SYR4 2016–2019
Total Haloacetic Acids (HAA5)
40.79 µg/L 68%
of the EPA limit 60 µg/L
worst single sample: 43.4 µg/L
4/5 SYR4 2016–2019
Arsenic
2.38 µg/L 24%
of the EPA limit 10 µg/L
worst single sample: 2.4 µg/L
3/6 SYR4 2012–2019
Dichloroacetic Acid
17 µg/L
No EPA limit set
 3/5 SYR4 2016–2019
Trichloroacetic Acid
14.16 µg/L
No EPA limit set
worst single sample: 15 µg/L
3/5 SYR4 2016–2019
Nitrate
360 µg/L 3.6%
of the EPA limit 10000 µg/L
 2/36 SYR4 2012–2019
Barium
36 µg/L 1.8%
of the EPA limit 2000 µg/L
 1/6 SYR4 2012–2019
Bromate
11 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
 1/79 SYR4 2012–2019
Copper
16 µg/L 1.2%
of the EPA limit 1300 µg/L
 1/5 SYR4 2014–2019
Cyanide
2.2 µg/L 1.1%
of the EPA limit 200 µg/L
 1/6 SYR4 2012–2019
Monobromoacetic Acid
1.6 µg/L
No EPA limit set
 1/5 SYR4 2016–2019
Monochloroacetic Acid
3.5 µg/L
No EPA limit set
 1/5 SYR4 2016–2019
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SOLWELL, SETH
Phone
650-747-1208
Email
ssolwell@ymcasf.org

Frequently asked questions about Camp Jones Gulch

Is Camp Jones Gulch tap water safe to drink?

EPA monitoring detected 19 contaminants in Camp Jones Gulch'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 Camp Jones Gulch's water?

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

How many people does Camp Jones Gulch serve?

Camp Jones Gulch reports serving 357 people in California, per its EPA record.

Has Camp Jones Gulch had any water quality violations?

The EPA has 5 violations on file for Camp Jones Gulch, of which 0 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.