Tap WaterIndex

← Pennsylvania

Tap water quality report

Tri Cnty Jt Muni Auth

EPA monitoring tested this supplier for 108 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
21
detected
10,100
people served
393
health-based violations
Pennsylvania rankingsLead in PennsylvaniaPFAS in Pennsylvania
Water source
Surface water
Ownership
Local government
Counties served
Washington

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.

393
health-based violations
959
violations on file
10
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-09-09
TT Health-based Resolved 2025-09-09
TT Health-based Resolved 2025-09-09
TT Health-based Resolved 2025-09-09
TT Health-based Unaddressed 2025-09-03
TT Health-based Unaddressed 2025-09-03
TT Health-based Unaddressed 2025-09-03
TT Health-based Unaddressed 2025-09-03
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Total Haloacetic Acids (HAA5)
72.32 µg/L 121%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 172 µg/L
127/128 SYR4 2012–2019
Bromodichloromethane
41.975 µg/L
No EPA limit set
worst single sample: 51.9 µg/L
126/128 SYR4 2012–2019
TTHM
155 µg/L 194%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 188 µg/L
126/128 SYR4 2012–2019
Dibromochloromethane
39.12 µg/L
No EPA limit set
worst single sample: 56.8 µg/L
125/128 SYR4 2012–2019
Chloroform
111 µg/L
No EPA limit set
worst single sample: 158 µg/L
124/126 SYR4 2012–2019
Copper
82.88 µg/L 6.4%
of the EPA limit 1300 µg/L
worst single sample: 215 µg/L
109/118 SYR4 2013–2019
Bromoform
18.725 µg/L
No EPA limit set
worst single sample: 25.5 µg/L
36/128 SYR4 2012–2019
Dichloroacetic Acid
47.35 µg/L
No EPA limit set
worst single sample: 48.3 µg/L
20/20 SYR4 2018–2019
Trichloroacetic Acid
38.38 µg/L
No EPA limit set
worst single sample: 45.6 µg/L
20/20 SYR4 2018–2019
Lead
0.00083 mg/L 5.5%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Dibromoacetic Acid
12.6 µg/L
No EPA limit set
worst single sample: 12.7 µg/L
11/20 SYR4 2018–2019
Nitrate
1200 µg/L 12%
of the EPA limit 10000 µg/L
 8/16 SYR4 2012–2019
Lead
6.232 µg/L 42%
of the EPA limit 15 µg/L
worst single sample: 6.31 µg/L
7/90 SYR4 2013–2019
Fluoride
910 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 933 µg/L
6/7 SYR4 2012–2019
Barium
45.685 µg/L 2.3%
of the EPA limit 2000 µg/L
worst single sample: 48.1 µg/L
4/7 SYR4 2012–2019
Benzo(A)Pyrene
3.03 µg/L 1515%
of the EPA limit, at the 95th percentile of samples — 0.2000 µg/L
 1/10 SYR4 2014–2019
Carbon Tetrachloride
2.61 µg/L 52%
of the EPA limit 5 µg/L
 1/12 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
2.78 µg/L 0.7%
of the EPA limit 400 µg/L
 1/10 SYR4 2014–2019
Di(2-ethylhexyl) Phthalate
3.08 µg/L 51%
of the EPA limit 6 µg/L
 1/10 SYR4 2014–2019
Hexachlorobenzene
0.5100 µg/L 51%
of the EPA limit 1 µg/L
 1/10 SYR4 2014–2019
Monochloroacetic Acid
3.17 µg/L
No EPA limit set
 1/20 SYR4 2018–2019
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumDichloromethaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
AUTHORITY SYSTEM
Phone
724-377-2211

Frequently asked questions about Tri Cnty Jt Muni Auth

Is Tri Cnty Jt Muni Auth tap water safe to drink?

EPA monitoring detected 21 contaminants in Tri Cnty Jt Muni Auth'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 Tri Cnty Jt Muni Auth's water?

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

How many people does Tri Cnty Jt Muni Auth serve?

Tri Cnty Jt Muni Auth reports serving 10,100 people in Pennsylvania, per its EPA record.

Has Tri Cnty Jt Muni Auth had any water quality violations?

The EPA has 959 violations on file for Tri Cnty Jt Muni Auth, of which 393 are health-based (a contaminant limit or required treatment was breached) and 10 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.