Dibromochloromethane
Parsippany-Troy Hills Water Department
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
281
Samples
0
Samples exceeding legal limit (MCL)
203
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 1.57 ppb | 58 | 33 | ND - 7.70 ppb |
| 2015 | 2.99 ppb | 47 | 34 | ND - 10.4 ppb |
| 2016 | 2.43 ppb | 49 | 34 | ND - 7.10 ppb |
| 2017 | 1.80 ppb | 50 | 35 | ND - 7.90 ppb |
| 2018 | 2.70 ppb | 39 | 35 | ND - 9.70 ppb |
| 2019 | 2.75 ppb | 38 | 32 | ND - 7.10 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-05 | 340307123 | 1.90 ppb |
| 2014-03-05 | 340307121 | 2.10 ppb |
| 2014-03-05 | 340307119 | 2.30 ppb |
| 2014-03-05 | 340307117 | 2.40 ppb |
| 2014-03-05 | 340307109 | 3.90 ppb |
| 2014-03-05 | 340307115 | 2.70 ppb |
| 2014-03-05 | 340307113 | 1.90 ppb |
| 2014-03-05 | 340307111 | 1.90 ppb |
| 2014-03-06 | 340307105 | ND |
| 2014-03-06 | 340307106 | ND |
| 2014-06-03 | 340606102 | ND |
| 2014-06-04 | 340606100 | 1.70 ppb |
| 2014-06-04 | 340606098 | 5.50 ppb |
| 2014-06-04 | 340606096 | 2.60 ppb |
| 2014-06-04 | 340606094 | 2.20 ppb |
| 2014-06-04 | 340606086 | 4.70 ppb |
| 2014-06-04 | 340606092 | 0.600 ppb |
| 2014-06-04 | 340606090 | 0.800 ppb |
| 2014-06-04 | 340606088 | 1.50 ppb |
| 2014-06-25 | 4060811-01 | ND |
| 2014-07-10 | 4070305-01 | ND |
| 2014-07-23 | 4070731-01 | ND |
| 2014-08-06 | 4080175-01 | ND |
| 2014-08-18 | 4080685-01 | ND |
| 2014-09-03 | 4090040-01 | ND |
| 2014-09-03 | 380907179 | ND |
| 2014-09-04 | 340905081 | 1.20 ppb |
| 2014-09-04 | 340905079 | 4.70 ppb |
| 2014-09-04 | 340905077 | 1.90 ppb |
| 2014-09-04 | 340905075 | 1.90 ppb |
| 2014-09-04 | 340905067 | 5.00 ppb |
| 2014-09-04 | 340905073 | 1.90 ppb |
| 2014-09-04 | 340905071 | 4.80 ppb |
| 2014-09-04 | 340905069 | 2.40 ppb |
| 2014-09-17 | 340919074.2 | ND |
| 2014-09-17 | 340919075.2 | ND |
| 2014-09-17 | 340919076.2 | ND |
| 2014-09-17 | 340919077.2 | ND |
| 2014-09-17 | 340919078.2 | ND |
| 2014-09-17 | 340919069.2 | ND |
| 2014-09-17 | 340919070.2 | 2.40 ppb |
| 2014-09-17 | 340919071.2 | ND |
| 2014-09-17 | 340919072.2 | ND |
| 2014-09-17 | 340919073.2 | ND |
| 2014-09-17 | 340919080.2 | ND |
| 2014-09-17 | 340919079.2 | ND |
| 2014-10-08 | 4100262-01 | ND |
| 2014-10-28 | 4100821-01 | ND |
| 2014-11-13 | 4110375-01 | ND |
| 2014-12-02 | 341205123 | ND |
| 2014-12-04 | 341205120 | 1.70 ppb |
| 2014-12-04 | 341205118 | 1.50 ppb |
| 2014-12-04 | 341205116 | 2.40 ppb |
| 2014-12-04 | 341205114 | 1.70 ppb |
| 2014-12-04 | 341205106 | 6.40 ppb |
| 2014-12-04 | 341205112 | 7.70 ppb |
| 2014-12-04 | 341205110 | 2.40 ppb |
| 2014-12-04 | 341205108 | 2.50 ppb |
| 2015-03-03 | 350306069 | ND |
| 2015-03-03 | 350306070 | ND |
| 2015-03-04 | 350306087 | 1.000 ppb |
| 2015-03-04 | 350306085 | 1.10 ppb |
| 2015-03-04 | 350306083 | 2.60 ppb |
| 2015-03-04 | 350306081 | 2.60 ppb |
| 2015-03-04 | 350306073 | 4.00 ppb |
| 2015-03-04 | 350306079 | 4.10 ppb |
| 2015-03-04 | 350306077 | 1.70 ppb |
| 2015-03-04 | 350306075 | 1.90 ppb |
| 2015-06-03 | 350605148 | 2.70 ppb |
| 2015-06-04 | 350605146 | 2.20 ppb |
| 2015-06-04 | 350605144 | 6.40 ppb |
| 2015-06-04 | 350605142 | 5.20 ppb |
| 2015-06-04 | 350605140 | 3.10 ppb |
| 2015-06-04 | 350605132 | 8.00 ppb |
| 2015-06-04 | 350605138 | 4.10 ppb |
| 2015-06-04 | 350605136 | 5.60 ppb |
| 2015-06-04 | 350605134 | 5.70 ppb |
| 2015-09-04 | 350908109 | 1.70 ppb |
| 2015-09-04 | 350908107 | 8.90 ppb |
| 2015-09-04 | 350908105 | 5.20 ppb |
| 2015-09-04 | 350908103 | 4.70 ppb |
| 2015-09-04 | 350908095 | 3.40 ppb |
| 2015-09-04 | 350908101 | 6.20 ppb |
| 2015-09-04 | 350908099 | 10.4 ppb |
| 2015-09-04 | 350908097 | 10.1 ppb |
| 2015-09-16 | 350918112.1 | ND |
| 2015-09-16 | 350918114.1 | ND |
| 2015-09-16 | 350918115 | ND |
| 2015-09-16 | 350918123.1 | ND |
| 2015-09-16 | 350918117.1 | ND |
| 2015-09-16 | 350918118.1 | ND |
| 2015-09-16 | 350918119.1 | 0.700 ppb |
| 2015-09-16 | 350918120.1 | ND |
| 2015-09-16 | 350918122.1 | ND |
| 2015-09-16 | 350918121.1 | ND |
| 2015-12-04 | 351207119 | 1.90 ppb |
| 2015-12-04 | 351207117 | 2.80 ppb |
| 2015-12-04 | 351207115 | 4.90 ppb |
| 2015-12-04 | 351207113 | 2.90 ppb |
| 2015-12-04 | 351207105 | 7.20 ppb |
| 2015-12-04 | 351207111 | 2.10 ppb |
| 2015-12-04 | 351207109 | 2.60 ppb |
| 2015-12-04 | 351207107 | 2.60 ppb |
| 2015-12-04 | 351207124 | ND |
| 2015-12-04 | 351207123 | ND |
| 2016-03-04 | 360307083 | ND |
| 2016-03-04 | 360307085 | ND |
| 2016-03-04 | 360307084 | 0.600 ppb |
| 2016-03-14 | 360316112 | 2.80 ppb |
| 2016-03-14 | 360316110 | 2.30 ppb |
| 2016-03-14 | 360316100 | 4.90 ppb |
| 2016-03-14 | 360316104 | 2.80 ppb |
| 2016-03-14 | 360316102 | 2.70 ppb |
| 2016-03-15 | 360316114 | 1.70 ppb |
| 2016-03-16 | 360316108 | 1.80 ppb |
| 2016-03-16 | 360316106 | 2.80 ppb |
| 2016-06-06 | 360608133 | 1.80 ppb |
| 2016-06-06 | 360608131 | 3.10 ppb |
| 2016-06-06 | 360608129 | 3.10 ppb |
| 2016-06-06 | 360608127 | 5.20 ppb |
| 2016-06-06 | 360608119 | 6.90 ppb |
| 2016-06-06 | 360608125 | 4.90 ppb |
| 2016-06-06 | 360608123 | 7.00 ppb |
| 2016-06-06 | 360608121 | 7.10 ppb |
| 2016-06-06 | 360608136 | ND |
| 2016-06-06 | 360608138 | ND |
| 2016-06-06 | 360608137 | ND |
| 2016-09-06 | 360908052 | 1.60 ppb |
| 2016-09-06 | 360908050 | 4.30 ppb |
| 2016-09-06 | 360908048 | 5.40 ppb |
| 2016-09-06 | 360908046 | 4.20 ppb |
| 2016-09-06 | 360908038 | 3.30 ppb |
| 2016-09-06 | 360908044 | 3.40 ppb |
| 2016-09-06 | 360908042 | 6.40 ppb |
| 2016-09-06 | 360908040 | 6.00 ppb |
| 2016-09-06 | 360908063.1 | ND |
| 2016-09-06 | 360908065.1 | ND |
| 2016-09-06 | 360908066 | ND |
| 2016-09-06 | 360908056.1 | 0.700 ppb |
| 2016-09-06 | 360908059.1 | ND |
| 2016-09-06 | 360908061.1 | ND |
| 2016-09-06 | 360908060.1 | ND |
| 2016-09-07 | 360908058.1 | ND |
| 2016-09-16 | 360908057.1 | ND |
| 2016-11-29 | 361207095 | ND |
| 2016-11-29 | 361207094 | ND |
| 2016-12-05 | 361207091 | 2.70 ppb |
| 2016-12-05 | 361207089 | 1.80 ppb |
| 2016-12-05 | 361207087 | 4.80 ppb |
| 2016-12-05 | 361207085 | 3.70 ppb |
| 2016-12-05 | 361207077 | 2.00 ppb |
| 2016-12-05 | 361207083 | 3.90 ppb |
| 2016-12-05 | 361207081 | 1.000 ppb |
| 2016-12-05 | 361207079 | 2.20 ppb |
| 2017-03-06 | 370308177 | 1.80 ppb |
| 2017-03-06 | 370308175 | 3.10 ppb |
| 2017-03-06 | 370308173 | 2.70 ppb |
| 2017-03-06 | 370308171 | 2.70 ppb |
| 2017-03-06 | 370308163 | 1.30 ppb |
| 2017-03-06 | 370308169 | 2.60 ppb |
| 2017-03-06 | 370308167 | 2.90 ppb |
| 2017-03-06 | 370308165 | 2.30 ppb |
| 2017-03-06 | 370308159 | ND |
| 2017-03-06 | 370308161 | ND |
| 2017-03-06 | 370308160 | ND |
| 2017-05-03 | 370505115 | ND |
| 2017-06-06 | 370608218 | 1.80 ppb |
| 2017-06-06 | 370608216 | 3.10 ppb |
| 2017-06-06 | 370608214 | 3.90 ppb |
| 2017-06-06 | 370608212 | 4.40 ppb |
| 2017-06-06 | 370608204 | 1.70 ppb |
| 2017-06-06 | 370608210 | 0.900 ppb |
| 2017-06-06 | 370608208 | 1.30 ppb |
| 2017-06-06 | 370608206 | 1.50 ppb |
| 2017-06-06 | 370608221 | 1.50 ppb |
| 2017-06-06 | 370608222 | ND |
| 2017-09-06 | 370908088 | 2.00 ppb |
| 2017-09-06 | 370908086 | 3.30 ppb |
| 2017-09-06 | 370908084 | 6.80 ppb |
| 2017-09-06 | 370908082 | 5.20 ppb |
| 2017-09-06 | 370908074 | 1.20 ppb |
| 2017-09-06 | 370908080 | 1.80 ppb |
| 2017-09-06 | 370908078 | 2.40 ppb |
| 2017-09-06 | 370908076 | 7.90 ppb |
| 2017-09-13 | 370915020.4 | ND |
| 2017-09-13 | 370915022.4 | 0.900 ppb |
| 2017-09-13 | 370915023.3 | ND |
| 2017-09-13 | 370915024.4 | ND |
| 2017-09-13 | 370915025.4 | ND |
| 2017-09-13 | 370915026.4 | 0.700 ppb |
| 2017-09-13 | 370915027.4 | ND |
| 2017-09-13 | 370915028.4 | ND |
| 2017-09-13 | 370915029.4 | ND |
| 2017-09-13 | 370915030.4 | ND |
| 2017-09-13 | 370915031 | ND |
| 2017-12-05 | 371207185 | 2.00 ppb |
| 2017-12-05 | 371207183 | 1.90 ppb |
| 2017-12-05 | 371207181 | 4.30 ppb |
| 2017-12-05 | 371207179 | 2.80 ppb |
| 2017-12-05 | 371207171 | 1.000 ppb |
| 2017-12-05 | 371207177 | 1.30 ppb |
| 2017-12-05 | 371207175 | 3.70 ppb |
| 2017-12-05 | 371207173 | 1.50 ppb |
| 2017-12-06 | 371207189 | ND |
| 2018-03-06 | 380308133 | 2.80 ppb |
| 2018-03-06 | 380308131 | 3.40 ppb |
| 2018-03-06 | 380308129 | 3.70 ppb |
| 2018-03-06 | 380308127 | 4.40 ppb |
| 2018-03-06 | 380308119 | 1.20 ppb |
| 2018-03-06 | 380308125 | 4.10 ppb |
| 2018-03-06 | 380308123 | 2.90 ppb |
| 2018-03-06 | 380308121 | 3.20 ppb |
| 2018-03-06 | 380308136 | 0.800 ppb |
| 2018-03-06 | 380308137 | 0.600 ppb |
| 2018-06-04 | 380607195 | 2.60 ppb |
| 2018-06-04 | 380607193 | 1.90 ppb |
| 2018-06-04 | 380607191 | 5.30 ppb |
| 2018-06-04 | 380607189 | 7.70 ppb |
| 2018-06-04 | 380607181 | 2.30 ppb |
| 2018-06-04 | 380607187 | 9.70 ppb |
| 2018-06-04 | 380607185 | 3.60 ppb |
| 2018-06-04 | 380607183 | 5.00 ppb |
| 2018-06-05 | 380607198 | 0.500 ppb |
| 2018-09-04 | 380907181A | ND |
| 2018-09-05 | 380907176 | 3.30 ppb |
| 2018-09-05 | 380907174 | 2.50 ppb |
| 2018-09-05 | 380907172 | 6.50 ppb |
| 2018-09-05 | 380907170 | 7.10 ppb |
| 2018-09-05 | 380907162 | 1.50 ppb |
| 2018-09-05 | 380907168 | 1.50 ppb |
| 2018-09-05 | 380907166 | 1.90 ppb |
| 2018-09-05 | 380907164 | 1.90 ppb |
| 2018-09-05 | 380907180A | 0.700 ppb |
| 2018-10-16 | 381019051 | ND |
| 2018-10-16 | 381019052 | ND |
| 2018-12-05 | 381205066 | 2.50 ppb |
| 2018-12-05 | 381205064 | 0.800 ppb |
| 2018-12-05 | 381205062 | 4.10 ppb |
| 2018-12-05 | 381205060 | 2.60 ppb |
| 2018-12-05 | 381205052 | 0.500 ppb |
| 2018-12-05 | 381205058 | ND |
| 2018-12-05 | 381205056 | 1.70 ppb |
| 2018-12-05 | 381205054 | 0.500 ppb |
| 2019-03-06 | 390307137.1 | 3.00 ppb |
| 2019-03-06 | 390307136.1 | 1.50 ppb |
| 2019-03-06 | 390307135.1 | 3.20 ppb |
| 2019-03-06 | 390307133.1 | 2.50 ppb |
| 2019-03-06 | 390307129.1 | 1.10 ppb |
| 2019-03-06 | 390307132.1 | 3.10 ppb |
| 2019-03-06 | 390307131.1 | 2.80 ppb |
| 2019-03-06 | 390307130.1 | 1.50 ppb |
| 2019-03-06 | 390307139 | ND |
| 2019-06-05 | 390607123.1 | 4.50 ppb |
| 2019-06-05 | 390607122.1 | 4.10 ppb |
| 2019-06-05 | 390607119.1 | 5.10 ppb |
| 2019-06-05 | 390607121.1 | 4.90 ppb |
| 2019-06-05 | 390607115.1 | 1.20 ppb |
| 2019-06-05 | 390607118.1 | 1.40 ppb |
| 2019-06-05 | 390607117.1 | 4.80 ppb |
| 2019-06-05 | 390607116.1 | 4.80 ppb |
| 2019-06-12 | 390613033 | ND |
| 2019-09-05 | 390906137.1 | 1.90 ppb |
| 2019-09-05 | 390906136.1 | 3.90 ppb |
| 2019-09-05 | 390906135.1 | 7.10 ppb |
| 2019-09-05 | 390906133.1 | 6.30 ppb |
| 2019-09-05 | 390906129.1 | 1.30 ppb |
| 2019-09-05 | 390906132.1 | 4.00 ppb |
| 2019-09-05 | 390906131.1 | 5.60 ppb |
| 2019-09-05 | 390906130.1 | 5.70 ppb |
| 2019-09-05 | 390906123.1 | ND |
| 2019-09-05 | 390906125.1 | ND |
| 2019-09-05 | 390906124.1 | ND |
| 2019-12-04 | 391205131.1 | 1.70 ppb |
| 2019-12-04 | 391205130.1 | 1.30 ppb |
| 2019-12-04 | 391205129.1 | 5.50 ppb |
| 2019-12-04 | 391205127.1 | 4.60 ppb |
| 2019-12-04 | 391205123.1 | 1.30 ppb |
| 2019-12-04 | 391205126.1 | 0.600 ppb |
| 2019-12-04 | 391205125.1 | 1.20 ppb |
| 2019-12-04 | 391205124.1 | 2.90 ppb |
| 2019-12-04 | 391205133 | ND |