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Tap water quality report

Mesa Dunes Mobile Home Estates

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
600
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
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.

0
health-based violations
15
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2021-02-01 → 2021-02-28
MON Monitoring Resolved 2021-02-01 → 2021-02-28
MR Monitoring Resolved 2019-01-01 → 2019-12-31
MR Monitoring Resolved 2019-01-01 → 2019-12-31
MR Monitoring Resolved 2019-01-01 → 2019-12-31
MR Monitoring Resolved 2019-01-01 → 2019-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31

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
8362 µg/L 84%
of the EPA limit 10000 µg/L
worst single sample: 9100 µg/L
174/174 SYR4 2012–2019
Lead
0.0022 mg/L 15%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2024
Fluoride
146 µg/L 3.7%
of the EPA limit 4000 µg/L
worst single sample: 150 µg/L
5/6 SYR4 2014–2018
Arsenic
4.365 µg/L 44%
of the EPA limit 10 µg/L
worst single sample: 4.5 µg/L
4/6 SYR4 2014–2018
Nitrate-Nitrite
7900 µg/L 79%
of the EPA limit 10000 µg/L
worst single sample: 8100 µg/L
3/3 SYR4 2018
Bromoform
1.2 µg/L
No EPA limit set
 1/1 SYR4 2017
Selenium
6.1 µg/L 12%
of the EPA limit 50 µg/L
 1/6 SYR4 2014–2018
TTHM
1.7 µg/L 2.1%
of the EPA limit 80 µg/L
 1/1 SYR4 2017
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAsbestosAtrazineBariumBenzeneBeryllium, TotalBromodichloromethaneChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MANCARELLA, JOANNE
Phone
805-489-6602
Email
[email protected]

Frequently asked questions about Mesa Dunes Mobile Home Estates

Is Mesa Dunes Mobile Home Estates tap water safe to drink?

EPA monitoring detected 8 contaminants in Mesa Dunes Mobile Home Estates'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 Mesa Dunes Mobile Home Estates's water?

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

How many people does Mesa Dunes Mobile Home Estates serve?

Mesa Dunes Mobile Home Estates reports serving 600 people in California, per its EPA record.

Has Mesa Dunes Mobile Home Estates had any water quality violations?

The EPA has 15 violations on file for Mesa Dunes Mobile Home Estates, 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.