washington, PA
Total Incidents:
404
Last Incident:
July 01, 2018
Note: Just because the latest incident is in 2017 or 2018 doesn’t mean your water is free of contaminants! There is a considerable lag between when data is collected and when it is published by the EPA.
Contaminants
TTHM
330
Incidents
Fluoride
34
Incidents
Coliform (TCR)
19
Incidents
Benzo(a)pyrene
11
Incidents
Chlorine
4
Incidents
Nitrate
4
Incidents
Total Haloacetic Acids (HAA5)
2
Incidents
TTHM
Description
Trihalomethanes occur when naturally-occurring organic and inorganic materials in the water react with the disinfectants, chlorine and chloramine.
Health Effects
Liver, kidney or central nervous system problems; increased risk of cancer
Fluoride
Description
Fluoride compounds are salts that form when the element, fluorine, combines with minerals in soil or rocks. Many communities add fluoride to their drinking water to promote dental health.
Health Effects
Bone disease (pain and tenderness of the bones); Children may get mottled teeth
Coliform (TCR)
Description
Coliforms are bacteria that are naturally present in the environment and used as an indicator that other, potentially harmful, bacteria may be present. Coliforms found in more samples than allowed is a warning of potential problems.
Health Effects
Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5
Benzo(a)pyrene
Description
Benzo(a)pyrene is one of a group of compounds called polycyclic aromatic hydrocarbons. They are not produced or used commercially but are very commonly found since they are formed as a result of incomplete combustion of organic materials.
Health Effects
Reproductive difficulties; increased risk of cancer
Chlorine
Description
The gaseous or liquid form of chlorine (CL2) is a water additive used by municipal water systems to control microbes. It is relatively inexpensive and has the lowest production and operating costs and longest history for large continuous disinfection operations. Chlorine is a powerful oxidant.
Health Effects
Eye/nose irritation; stomach discomfort
Nitrate
Description
Nitrates and nitrites are nitrogen-oxygen chemical units which combine with various organic and inorganic compounds. The greatest use of nitrates is as a fertilizer. Once taken into the body, nitrates are converted to nitrites.
Health Effects
Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome.
Total Haloacetic Acids (HAA5)
Description
Haloacetic acids occur when naturally-occurring organic and inorganic materials in the water react with the disinfectants, chlorine and chloramine.
Health Effects
Increased risk of cancer
All Incidents
| Water System | Type | Measure | Violation | Effects | Begin Date |
|---|---|---|---|---|---|
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2018-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2018-04-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2018-04-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2018-01-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2018-01-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2018-01-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2018-01-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2018-01-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-10-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-10-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-10-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-10-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-10-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-10-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | Benzo(a)pyrene | MCL, Average | Maximum Contaminant Level Violation | Reproductive difficulties; increased risk of cancer | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2017-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| MARIANNA MUNI WATER WORKS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-01-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| DONEGAL TOWNSHIP | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-10-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| CORNERSTONE CARE | Fluoride | MCL, Average | Maximum Contaminant Level Violation | Bone disease (pain and tenderness of the bones); Children may get mottled teeth | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |
| TRI CNTY JT MUNI AUTH | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-07-01 |