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.
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.
Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5
Trihalomethanes occur when naturally-occurring organic and inorganic materials in the water react with the disinfectants, chlorine and chloramine.
Liver, kidney or central nervous system problems; increased risk of cancer
Chlorine dioxide is a water additive used to control microbes and can be used to control tastes and odors. It rapidly disappears from stored water.
Anemia; infants & young children: nervous system effects
Haloacetic acids occur when naturally-occurring organic and inorganic materials in the water react with the disinfectants, chlorine and chloramine.
Increased risk of cancer
Chlorite occurs when chlorine dioxide breaks down.
Anemia; infants & young children: nervous system effects
| Water System | Type | Measure | Violation | Effects | Begin Date |
|---|---|---|---|---|---|
| ALMATIS | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2018-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-10-01 |
| ALMATIS | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2018-10-01 |
| ALMATIS | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2018-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2018-01-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-10-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-07-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ALMATIS | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2017-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-04-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-04-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-03-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-03-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-03-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-03-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-03-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-01-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-01-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2016-01-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2016-01-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-12-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-12-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-12-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-12-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-11-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-11-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-11-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-11-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-10-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2015-10-01 |
| PARISH UTILITIES OF ASCENSION | Chlorine dioxide | Acute MRDL | Maximum Residual Disinfectant Level | Anemia; infants & young children: nervous system effects | 2015-10-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | Total Haloacetic Acids (HAA5) | MCL, Average | Maximum Contaminant Level Violation | Increased risk of cancer | 2015-10-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| ASCENSION CONSOLIDATED UTILITY DIST 1 | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
| ACUD 1 ST JAMES | TTHM | MCL, Average | Maximum Contaminant Level Violation | Liver, kidney or central nervous system problems; increased risk of cancer | 2015-10-01 |
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