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Tap water quality report

Borough of Cornwall

EPA monitoring tested this supplier for 14 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
11
detected
3,343
people served
1
health-based violations
Pennsylvania rankingsLead in PennsylvaniaPFAS in Pennsylvania
Water source
SWP
Ownership
Local government
Counties served
Lebanon

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.

1
health-based violations
47
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1992-01-01 → 1994-07-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MON Monitoring Resolved 2021-09-01 → 2021-09-30
MON Monitoring Resolved 2021-09-01 → 2021-09-30
MON Monitoring Resolved 2021-09-01 → 2021-09-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
98.9 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
Bromodichloromethane
10.8 µg/L
No EPA limit set
 30/30 SYR4 2012–2019
TTHM
105 µg/L 131%
of the EPA limit, in the worst sample — 80 µg/L
 30/30 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
59.4 µg/L 99%
of the EPA limit 60 µg/L
 30/30 SYR4 2012–2019
Dibromochloromethane
2.6 µg/L
No EPA limit set
 19/30 SYR4 2012–2019
Copper
194 µg/L 15%
of the EPA limit 1300 µg/L
 14/30 SYR4 2013–2019
Dichloroacetic Acid
25 µg/L
No EPA limit set
 12/12 SYR4 2016–2019
Trichloroacetic Acid
24 µg/L
No EPA limit set
 12/12 SYR4 2016–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2025
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 1/30 SYR4 2013–2019
Monochloroacetic Acid
2 µg/L
No EPA limit set
 1/12 SYR4 2016–2019
3 contaminants tested, none detected
BromoformDibromoacetic AcidMonobromoacetic Acid

Utility contact

Contact
BARB HENRY
Phone
717-274-5441

Frequently asked questions about Borough of Cornwall

Is Borough of Cornwall tap water safe to drink?

EPA monitoring detected 11 contaminants in Borough of Cornwall'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 Borough of Cornwall's water?

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

How many people does Borough of Cornwall serve?

Borough of Cornwall reports serving 3,343 people in Pennsylvania, per its EPA record.

Has Borough of Cornwall had any water quality violations?

The EPA has 47 violations on file for Borough of Cornwall, of which 1 is 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.