Is Calico Rock Waterworks Tap Water Safe? Quality Report

Water source: Ground water under surface influence
Ownership: Local government
Counties served: Izard

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
MCL	Health-based	Resolved	2015-07-01 → 2015-07-31
MCL	Health-based	Resolved	2015-07-01 → 2015-07-31
MCL	Health-based	Resolved	2015-07-01 → 2015-07-31
TT	Health-based	Resolved	2007-11-01 → 2007-11-30
TT	Health-based	Resolved	2007-11-01 → 2007-11-30
TT	Health-based	Resolved	2006-08-01 → 2006-08-31
TT	Health-based	Resolved	2006-08-01 → 2006-08-31
TT	Health-based	Resolved	2006-08-01 → 2006-08-31
TT	Health-based	Resolved	2006-07-01 → 2006-07-31
TT	Health-based	Resolved	2006-07-01 → 2006-07-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Fluoride	1174 µg/L 29% of the EPA limit 4000 µg/L worst single sample: 24400 µg/L	433/451	SYR4	2012–2019
Nitrate-Nitrite	1280 µg/L 13% of the EPA limit 10000 µg/L worst single sample: 1320 µg/L	80/94	SYR4	2012–2019
Dibromochloromethane	3.36 µg/L No EPA limit set worst single sample: 3.7 µg/L	35/125	SYR4	2012–2019
Nitrate	1157 µg/L 12% of the EPA limit 10000 µg/L worst single sample: 1170 µg/L	34/34	SYR4	2012–2019
Chloroform	15.8 µg/L No EPA limit set worst single sample: 19.6 µg/L	32/117	SYR4	2012–2019
Bromodichloromethane	5.685 µg/L No EPA limit set worst single sample: 6.5 µg/L	30/117	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	18 µg/L 30% of the EPA limit 60 µg/L worst single sample: 24 µg/L	21/73	SYR4	2012–2019
Copper	181.5 µg/L 14% of the EPA limit 1300 µg/L worst single sample: 210 µg/L	20/30	SYR4	2013–2019
Arsenic	2.41 µg/L 24% of the EPA limit 10 µg/L worst single sample: 2.5 µg/L	19/79	SYR4	2012–2019
Dichloroacetic Acid	9.01 µg/L No EPA limit set worst single sample: 10 µg/L	19/73	SYR4	2012–2019
TTHM	25.675 µg/L 32% of the EPA limit 80 µg/L worst single sample: 26.1 µg/L	18/75	SYR4	2012–2019
Trichloroacetic Acid	9.8 µg/L No EPA limit set worst single sample: 11.9 µg/L	16/73	SYR4	2012–2019
Xylenes, Total	37.228 µg/L 0.4% of the EPA limit 10000 µg/L worst single sample: 59.8 µg/L	10/42	SYR4	2012–2019
Lead	8 µg/L 53% of the EPA limit 15 µg/L worst single sample: 10 µg/L	9/92	SYR4	2012–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	8/8	LCR	2004
Gross Beta Particle Activity	4.04 pCi/L No EPA limit set worst single sample: 4.1 pCi/L	5/22	SYR4	2012–2019
Ethylbenzene	8.258 µg/L 1.2% of the EPA limit 700 µg/L worst single sample: 9.5 µg/L	4/42	SYR4	2012–2019
Dibromoacetic Acid	1.37 µg/L No EPA limit set worst single sample: 1.4 µg/L	3/73	SYR4	2012–2019
Bromoform	1.0715 µg/L No EPA limit set worst single sample: 1.1 µg/L	2/117	SYR4	2012–2019
Chromium	1.6 µg/L 1.6% of the EPA limit 100 µg/L	1/56	SYR4	2012–2019
Di(2-ethylhexyl) Phthalate	2.82 µg/L 47% of the EPA limit 6 µg/L	1/26	SYR4	2012–2019
Monobromoacetic Acid	1.4 µg/L No EPA limit set	1/73	SYR4	2012–2019
Monochloroacetic Acid	2.1 µg/L No EPA limit set	1/73	SYR4	2012–2019

56 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: SANDERS, COREY
Phone: 870-297-3772
Email: [email protected]

Frequently asked questions about Calico Rock Waterworks

Is Calico Rock Waterworks tap water safe to drink?

EPA monitoring detected 23 contaminants in Calico Rock Waterworks'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 Calico Rock Waterworks's water?

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

How many people does Calico Rock Waterworks serve?

Calico Rock Waterworks reports serving 1,726 people in Arkansas, per its EPA record.

Has Calico Rock Waterworks had any water quality violations?

The EPA has 99 violations on file for Calico Rock Waterworks, of which 78 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.