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Tap water quality report

Rosecrest Mutual

EPA monitoring tested this supplier for 38 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

38
contaminants tested
9
detected
31
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Placer

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.

2
health-based violations
18
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2016-03-01 → 2016-03-31
MCL Health-based Resolved 2016-03-01 → 2016-03-31
MR Monitoring Resolved 2016-03-01 → 2016-03-31
MR Monitoring Resolved 2016-03-01 → 2016-03-31
Other Monitoring Resolved 2007-07-01
Other Monitoring Resolved 2007-07-01
Other Monitoring Resolved 2007-07-01
MR Monitoring Resolved 2007-01-01 → 2007-12-31
MR Monitoring Resolved 2007-01-01 → 2007-12-31
MR Monitoring Resolved 2007-01-01 → 2007-12-31

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 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
5290 µg/L 53%
of the EPA limit 10000 µg/L
worst single sample: 5300 µg/L
22/22 SYR4 2012–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2025
Arsenic
3.38 µg/L 34%
of the EPA limit 10 µg/L
worst single sample: 3.4 µg/L
3/3 SYR4 2012–2018
Fluoride
234 µg/L 5.9%
of the EPA limit 4000 µg/L
worst single sample: 240 µg/L
3/3 SYR4 2012–2018
Barium
150 µg/L 7.5%
of the EPA limit 2000 µg/L
 1/3 SYR4 2012–2018
Chromium
12 µg/L 12%
of the EPA limit 100 µg/L
 1/3 SYR4 2012–2018
Lead
9.2 µg/L 61%
of the EPA limit 15 µg/L
 1/3 SYR4 2012–2018
Nitrate-Nitrite
5300 µg/L 53%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
Nitrite
3 µg/L 0.3%
of the EPA limit 1000 µg/L
 1/3 SYR4 2012–2018
29 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAsbestosBenzeneBeryllium, TotalChlorobenzeneCopperCadmiumCarbon TetrachlorideDichloromethaneEthylbenzeneMercurySeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MARSH, BUNNY
Phone
916-782-4543
Email
clmarshjr@surewest.net

Frequently asked questions about Rosecrest Mutual

Is Rosecrest Mutual tap water safe to drink?

EPA monitoring detected 9 contaminants in Rosecrest Mutual'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 Rosecrest Mutual's water?

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

How many people does Rosecrest Mutual serve?

Rosecrest Mutual reports serving 31 people in California, per its EPA record.

Has Rosecrest Mutual had any water quality violations?

The EPA has 18 violations on file for Rosecrest Mutual, of which 2 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.