Is Livermore Water Supply Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Humboldt

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Unaddressed	2016-02-17
MCL	Health-based	Resolved	2012-04-01 → 2013-03-31
MCL	Health-based	Resolved	2012-04-01 → 2013-03-31
MCL	Health-based	Resolved	2012-04-01 → 2013-03-31
MCL	Health-based	Resolved	2012-04-01 → 2013-03-31
MR	Monitoring	Resolved	2018-07-01 → 2019-06-30
MR	Monitoring	Resolved	2018-07-01 → 2019-06-30
MR	Monitoring	Resolved	2018-07-01 → 2019-06-30
MR	Monitoring	Resolved	2018-07-01 → 2019-06-30
MR	Monitoring	Resolved	2018-07-01 → 2019-06-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	615 µg/L 47% of the EPA limit 1300 µg/L worst single sample: 1700 µg/L	91/93	SYR4	2014–2019
Lead	65.4 µg/L 436% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 117 µg/L	45/93	SYR4	2014–2019
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L	22/22	LCR	2024
Arsenic	8.05 µg/L 81% of the EPA limit 10 µg/L worst single sample: 13 µg/L	10/10	SYR4	2012–2019
Nitrate	620 µg/L 6.2% of the EPA limit 10000 µg/L	6/22	SYR4	2012–2019
Bromodichloromethane	10.49 µg/L No EPA limit set worst single sample: 11 µg/L	3/3	SYR4	2013–2019
Chloroform	29.9 µg/L No EPA limit set worst single sample: 30 µg/L	3/3	SYR4	2013–2019
Dibromochloromethane	3.09 µg/L No EPA limit set worst single sample: 3.3 µg/L	3/3	SYR4	2013–2019
Dichloroacetic Acid	13.4 µg/L No EPA limit set worst single sample: 14 µg/L	3/3	SYR4	2013–2019
TTHM	42.2 µg/L 53% of the EPA limit 80 µg/L worst single sample: 43 µg/L	3/3	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	25.8 µg/L 43% of the EPA limit 60 µg/L worst single sample: 27 µg/L	3/3	SYR4	2013–2019
Trichloroacetic Acid	12.4 µg/L No EPA limit set worst single sample: 13 µg/L	3/3	SYR4	2013–2019
Combined Radium (-226 And -228)	4.21 pCi/L 84% of the EPA limit 5 pCi/L worst single sample: 4.3 pCi/L	2/2	SYR4	2017–2018
Di(2-ethylhexyl) Phthalate	2.79 µg/L 47% of the EPA limit 6 µg/L worst single sample: 2.9 µg/L	2/10	SYR4	2012–2018
Barium	80 µg/L 4% of the EPA limit 2000 µg/L	1/2	SYR4	2013–2018
Di(2-ethylhexyl) Adipate	0.7000 µg/L 0.2% of the EPA limit 400 µg/L	1/6	SYR4	2012–2018
Fluoride	500 µg/L 13% of the EPA limit 4000 µg/L	1/1	SYR4	2013

43 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4-DAntimony, TotalAtrazineBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDibromoacetic AcidDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: LIVERMORE WATER SUPPLY
Phone: 515-379-1074
Email: [email protected]

Frequently asked questions about Livermore Water Supply

Is Livermore Water Supply tap water safe to drink?

EPA monitoring detected 17 contaminants in Livermore Water Supply'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 Livermore Water Supply's water?

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

How many people does Livermore Water Supply serve?

Livermore Water Supply reports serving 383 people in Iowa, per its EPA record.

Has Livermore Water Supply had any water quality violations?

The EPA has 13 violations on file for Livermore Water Supply, of which 5 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.