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Tap water quality report

Ecco

EPA monitoring tested this supplier for 58 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

58
contaminants tested
9
detected
100
people served
12
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Madera

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.

12
health-based violations
32
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2017-09-01 → 2017-09-30
MCL Health-based Resolved 2017-09-01 → 2017-09-30
MCL Health-based Resolved 2017-09-01 → 2017-09-30
MCL Health-based Resolved 2017-08-01 → 2017-08-31
MCL Health-based Resolved 2017-08-01 → 2017-08-31
MCL Health-based Resolved 2017-08-01 → 2017-08-31
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MCL Health-based Resolved 2012-10-01 → 2012-12-31
MCL Health-based Resolved 2009-04-01 → 2009-06-30
MCL Health-based Resolved 2009-04-01 → 2009-06-30

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
Arsenic
22.7195 µg/L 227%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 32 µg/L
92/131 SYR4 2012–2019
Nitrate
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 10/54 SYR4 2012–2019
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
Copper
27.3585 µg/L 2.1%
of the EPA limit 1300 µg/L
worst single sample: 29.01 µg/L
4/10 SYR4 2012–2019
Barium
65.821 µg/L 3.3%
of the EPA limit 2000 µg/L
worst single sample: 68.01 µg/L
3/9 SYR4 2012–2019
Fluoride
344 µg/L 8.6%
of the EPA limit 4000 µg/L
worst single sample: 360 µg/L
3/9 SYR4 2012–2019
Beryllium, Total
6.6 µg/L 165%
of the EPA limit, at the 95th percentile of samples — 4 µg/L
 1/9 SYR4 2012–2019
Mercury
0.5500 µg/L 28%
of the EPA limit 2 µg/L
 1/10 SYR4 2012–2019
Nitrate-Nitrite
470 µg/L 4.7%
of the EPA limit 10000 µg/L
 1/7 SYR4 2012–2018
49 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAtrazineBenzeneBenzo(A)PyreneBromodichloromethaneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChloroformChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylene DibromideEthylbenzeneGross Beta Particle ActivityLassoLeadMonobromoacetic AcidMonochloroacetic AcidNitriteSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MIKE, ROBERTS
Phone
559-683-8162
Email
ecco4@sti.net

Frequently asked questions about Ecco

Is Ecco tap water safe to drink?

EPA monitoring detected 9 contaminants in Ecco'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 Ecco's water?

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

How many people does Ecco serve?

Ecco reports serving 100 people in California, per its EPA record.

Has Ecco had any water quality violations?

The EPA has 32 violations on file for Ecco, of which 12 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.