Tap WaterIndex

Tap water quality report

City of Chesapeake - Western Branch Sys

EPA monitoring tested this supplier for 44 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
13
detected
32,326
people served
4
health-based violations
Water source
SWP
Ownership
Local government

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.

4
health-based violations
5
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-09-01 → 2012-09-30
MCL Health-based Resolved 2012-09-01 → 2012-09-30
MCL Health-based Resolved 2012-09-01 → 2012-09-30
MCL Health-based Resolved 2012-09-01 → 2012-09-30
MR Monitoring Archived 1999-02-01 → 1999-02-28

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
TTHM
70.26 µg/L 88%
of the EPA limit 80 µg/L
worst single sample: 74 µg/L
129/129 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
51.3 µg/L 86%
of the EPA limit 60 µg/L
worst single sample: 64 µg/L
128/129 SYR4 2012–2019
Copper
176.95 µg/L 14%
of the EPA limit 1300 µg/L
worst single sample: 254 µg/L
88/100 SYR4 2012–2018
Bromodichloromethane
15.15 µg/L
No EPA limit set
worst single sample: 15.54 µg/L
56/56 SYR4 2015–2019
Chloroform
46.075 µg/L
No EPA limit set
worst single sample: 59.1 µg/L
56/56 SYR4 2015–2019
Dibromochloromethane
3.3575 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
56/56 SYR4 2015–2019
Dichloroacetic Acid
22.25 µg/L
No EPA limit set
worst single sample: 26 µg/L
56/56 SYR4 2015–2019
Trichloroacetic Acid
21.415 µg/L
No EPA limit set
worst single sample: 26 µg/L
56/56 SYR4 2015–2019
Lead
14.148 µg/L 94%
of the EPA limit 15 µg/L
worst single sample: 30 µg/L
47/100 SYR4 2012–2018
Monobromoacetic Acid
5 µg/L
No EPA limit set
 18/56 SYR4 2015–2019
Lead
0.00081 mg/L 5.4%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2024
Monochloroacetic Acid
4.52 µg/L
No EPA limit set
worst single sample: 4.7 µg/L
10/56 SYR4 2015–2019
Dibromoacetic Acid
1.75 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
6/56 SYR4 2015–2019
31 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Frequently asked questions about City of Chesapeake - Western Branch Sys

Is City of Chesapeake - Western Branch Sys tap water safe to drink?

EPA monitoring detected 13 contaminants in City of Chesapeake - Western Branch Sys'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 City of Chesapeake - Western Branch Sys's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Copper, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does City of Chesapeake - Western Branch Sys serve?

City of Chesapeake - Western Branch Sys reports serving 32,326 people, per its EPA record.

Has City of Chesapeake - Western Branch Sys had any water quality violations?

The EPA has 5 violations on file for City of Chesapeake - Western Branch Sys, of which 4 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.