Is Keswick Water Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Keokuk

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
MR	Monitoring	Resolved	2006-07-01 → 2006-08-31
MR	Monitoring	Resolved	2006-07-01 → 2006-08-31
MR	Monitoring	Resolved	2006-07-01 → 2006-08-31
MR	Monitoring	Resolved	2006-07-01 → 2006-08-31
Other	Monitoring	Resolved	2005-07-01
Other	Monitoring	Resolved	2005-07-01
MR	Monitoring	Resolved	1991-11-01 → 1991-11-30
MR	Monitoring	Resolved	1991-11-01 → 1991-11-30
MR	Monitoring	Resolved	1991-11-01 → 1991-11-30

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
Lead	0.0060 mg/L 40% of the EPA limit 0.0150 mg/L	13/13	LCR	2024
Copper	44.16 µg/L 3.4% of the EPA limit 1300 µg/L worst single sample: 60 µg/L	12/15	SYR4	2012–2018
Bromodichloromethane	22.02 µg/L No EPA limit set worst single sample: 23 µg/L	8/8	SYR4	2012–2019
Bromoform	4.1335 µg/L No EPA limit set worst single sample: 4.2 µg/L	8/8	SYR4	2012–2019
Chloroform	30.145 µg/L No EPA limit set worst single sample: 32 µg/L	8/8	SYR4	2012–2019
Dibromoacetic Acid	3.5455 µg/L No EPA limit set worst single sample: 3.57 µg/L	8/8	SYR4	2012–2019
Dibromochloromethane	16.23 µg/L No EPA limit set worst single sample: 17 µg/L	8/8	SYR4	2012–2019
Dichloroacetic Acid	9.2055 µg/L No EPA limit set worst single sample: 10 µg/L	8/8	SYR4	2012–2019
TTHM	71.605 µg/L 90% of the EPA limit 80 µg/L worst single sample: 75 µg/L	8/8	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	17.615 µg/L 29% of the EPA limit 60 µg/L worst single sample: 18 µg/L	8/8	SYR4	2012–2019
Trichloroacetic Acid	4.314 µg/L No EPA limit set worst single sample: 5 µg/L	8/8	SYR4	2012–2019
Lead	5.455 µg/L 36% of the EPA limit 15 µg/L worst single sample: 6.1 µg/L	4/15	SYR4	2012–2018
Monochloroacetic Acid	6.2315 µg/L No EPA limit set worst single sample: 6.47 µg/L	2/8	SYR4	2012–2019

1 contaminants tested, none detected

Monobromoacetic Acid

Utility contact

Contact: KESWICK WATER SYSTEM
Phone: 319-667-2635
Email: [email protected]

Frequently asked questions about Keswick Water

Is Keswick Water tap water safe to drink?

EPA monitoring detected 13 contaminants in Keswick Water'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 Keswick Water's water?

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

How many people does Keswick Water serve?

Keswick Water reports serving 252 people in Iowa, per its EPA record.

Has Keswick Water had any water quality violations?

The EPA has 9 violations on file for Keswick Water, 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.