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Tap water quality report

Resthaven Mobile Home Park

EPA monitoring tested this supplier for 53 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

53
contaminants tested
17
detected
99
people served
23
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.

23
health-based violations
26
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Addressed 2026-03-01 → 2026-05-31
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
Selenium
230 µg/L 460%
of the EPA limit, in the worst sample — 50 µg/L
64/64 SYR4 2012–2019
Cadmium
5.1 µg/L 102%
of the EPA limit, in the worst sample — 5 µg/L
6/14 SYR4 2012–2019
Fluoride
580 µg/L 14%
of the EPA limit 4000 µg/L
5/5 SYR4 2012–2019
Arsenic
6 µg/L 60%
of the EPA limit 10 µg/L
4/5 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
4/4 LCR 2024
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
3/5 SYR4 2012–2019
Combined Radium (-226 And -228)
0.8780 pCi/L 18%
of the EPA limit 5 pCi/L
2/2 SYR4 2019
Nitrate
632.8 µg/L 6.3%
of the EPA limit 10000 µg/L
2/34 SYR4 2012–2019
Bromodichloromethane
6.4 µg/L
No EPA limit set
1/1 SYR4 2017
Bromoform
7 µg/L
No EPA limit set
1/1 SYR4 2017
Chloroform
4.3 µg/L
No EPA limit set
1/1 SYR4 2017
Dibromoacetic Acid
4.6 µg/L
No EPA limit set
1/1 SYR4 2017
Dibromochloromethane
9 µg/L
No EPA limit set
1/1 SYR4 2017
Dichloroacetic Acid
2.1 µg/L
No EPA limit set
1/1 SYR4 2017
TTHM
27 µg/L 34%
of the EPA limit 80 µg/L
1/1 SYR4 2017
Total Haloacetic Acids (HAA5)
8.5 µg/L 14%
of the EPA limit 60 µg/L
1/1 SYR4 2017
Trichloroacetic Acid
1.8 µg/L
No EPA limit set
1/1 SYR4 2017
36 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAtrazineBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitriteSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DIVINCENZO, MELANIE
Phone
949-299-0942
Email
mdivincenzo@rtresi.com

Frequently asked questions about Resthaven Mobile Home Park

Is Resthaven Mobile Home Park tap water safe to drink?

EPA monitoring detected 17 contaminants in Resthaven Mobile Home Park'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 Resthaven Mobile Home Park's water?

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

How many people does Resthaven Mobile Home Park serve?

Resthaven Mobile Home Park reports serving 99 people in California, per its EPA record.

Has Resthaven Mobile Home Park had any water quality violations?

The EPA has 26 violations on file for Resthaven Mobile Home Park, of which 23 are health-based (a contaminant limit or required treatment was breached) and 1 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.