Arsenic
Perkasie Regional Authority
Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 7.06 ppb | 108 | 91 | ND - 18.6 ppb |
2015 | 11.2 ppb | 48 | 48 | 4.90 ppb - 20.1 ppb |
2016 | 10.6 ppb | 48 | 48 | 4.30 ppb - 16.6 ppb |
2017 | 10.5 ppb | 39 | 39 | 6.20 ppb - 15.3 ppb |
2018 | 7.25 ppb | 23 | 23 | 5.00 ppb - 11.0 ppb |
2019 | 6.92 ppb | 24 | 24 | 6.00 ppb - 9.00 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.004 ppb
The EWG Health Guideline of 0.004 ppb for arsenic was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 10 ppb
The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-14 | L4874581-6 | 11.6 ppb |
2014-01-14 | L4874581-1 | 13.0 ppb |
2014-01-14 | L4874581-7 | 5.80 ppb |
2014-01-14 | L4874581-8 | 2.70 ppb |
2014-01-14 | L4874581-9 | ND |
2014-01-14 | L4874581-2 | 8.80 ppb |
2014-01-14 | L4874581-3 | 4.30 ppb |
2014-01-14 | L4874581-4 | 4.70 ppb |
2014-01-14 | L4874581-5 | 4.90 ppb |
2014-02-11 | L4938955-6 | 12.6 ppb |
2014-02-11 | L4938955-1 | 15.4 ppb |
2014-02-11 | L4938955-7 | 6.70 ppb |
2014-02-11 | L4938955-8 | ND |
2014-02-11 | L4938955-9 | ND |
2014-02-11 | L4938955-2 | 10.00 ppb |
2014-02-11 | L4938955-3 | 4.90 ppb |
2014-02-11 | L4938955-4 | 5.20 ppb |
2014-02-11 | L4938955-5 | 5.50 ppb |
2014-03-11 | L2675758-6 | 12.6 ppb |
2014-03-11 | L2675758-1 | 16.6 ppb |
2014-03-11 | L2675758-7 | 7.00 ppb |
2014-03-11 | L2675758-8 | ND |
2014-03-11 | L2675758-9 | ND |
2014-03-11 | L2675758-2 | 9.30 ppb |
2014-03-11 | L2675758-3 | 4.90 ppb |
2014-03-11 | L2675758-4 | 5.20 ppb |
2014-03-11 | L2675758-5 | 5.60 ppb |
2014-04-08 | L4981630-6 | 11.0 ppb |
2014-04-08 | L4981630-1 | 14.4 ppb |
2014-04-08 | L4981630-7 | 6.30 ppb |
2014-04-08 | L4981630-8 | ND |
2014-04-08 | L4981630-9 | ND |
2014-04-08 | L4981630-2 | 8.70 ppb |
2014-04-08 | L4981630-3 | 4.70 ppb |
2014-04-08 | L4981630-4 | 5.00 ppb |
2014-04-08 | L4981630-5 | 5.10 ppb |
2014-05-13 | L5006756-6 | 12.0 ppb |
2014-05-13 | L5006756-1 | 15.8 ppb |
2014-05-13 | L5006756-7 | 6.60 ppb |
2014-05-13 | L5006756-8 | 2.50 ppb |
2014-05-13 | L5006756-9 | ND |
2014-05-13 | L5006756-2 | 8.80 ppb |
2014-05-13 | L5006756-3 | 6.00 ppb |
2014-05-13 | L5006756-4 | 5.80 ppb |
2014-05-13 | L5006756-5 | 5.40 ppb |
2014-06-10 | L5101092-6 | 11.7 ppb |
2014-06-10 | L5101092-1 | 14.1 ppb |
2014-06-10 | L5101092-7 | 6.00 ppb |
2014-06-10 | L5101092-8 | ND |
2014-06-10 | L5101092-9 | 4.50 ppb |
2014-06-10 | L5101092-2 | 8.30 ppb |
2014-06-10 | L5101092-3 | 5.30 ppb |
2014-06-10 | L5101092-4 | 5.30 ppb |
2014-06-10 | L5101092-5 | 5.30 ppb |
2014-07-08 | L3227449-6 | 11.8 ppb |
2014-07-08 | L3227449-1 | 14.5 ppb |
2014-07-08 | L3227449-7 | 6.40 ppb |
2014-07-08 | L3227449-8 | ND |
2014-07-08 | L3227449-9 | 2.80 ppb |
2014-07-08 | L3227449-2 | 9.10 ppb |
2014-07-08 | L3227449-3 | 5.60 ppb |
2014-07-08 | L3227449-4 | 5.40 ppb |
2014-07-08 | L3227449-5 | 5.50 ppb |
2014-08-12 | L3445556-6 | 12.2 ppb |
2014-08-12 | L3445556-1 | 14.2 ppb |
2014-08-12 | L3445556-7 | 6.30 ppb |
2014-08-12 | L3445556-8 | ND |
2014-08-12 | L3445556-9 | ND |
2014-08-12 | L3445556-2 | 9.40 ppb |
2014-08-12 | L3445556-3 | 5.30 ppb |
2014-08-12 | L3445556-4 | 5.20 ppb |
2014-08-12 | L3445556-5 | 5.80 ppb |
2014-09-09 | L5114061-6 | 14.6 ppb |
2014-09-09 | L5114061-1 | 17.6 ppb |
2014-09-09 | L5114061-7 | 7.70 ppb |
2014-09-09 | L5114061-8 | ND |
2014-09-09 | L5114061-9 | ND |
2014-09-09 | L5114061-2 | 10.9 ppb |
2014-09-09 | L5114061-3 | 7.50 ppb |
2014-09-09 | L5114061-4 | 6.80 ppb |
2014-09-09 | L5114061-5 | 7.20 ppb |
2014-10-15 | L5248731-6 | 15.2 ppb |
2014-10-15 | L5248731-1 | 18.6 ppb |
2014-10-15 | L5248731-7 | 8.50 ppb |
2014-10-15 | L5248731-8 | ND |
2014-10-15 | L5248731-9 | 4.80 ppb |
2014-10-15 | L5248731-2 | 9.50 ppb |
2014-10-15 | L5248731-3 | 7.60 ppb |
2014-10-15 | L5248731-4 | 7.30 ppb |
2014-10-15 | L5248731-5 | 7.80 ppb |
2014-11-11 | L5320210-6 | 13.6 ppb |
2014-11-11 | L5320210-1 | 16.3 ppb |
2014-11-11 | L5320210-7 | 6.80 ppb |
2014-11-11 | L5320210-8 | 2.50 ppb |
2014-11-11 | L5320210-9 | ND |
2014-11-11 | L5320210-2 | 8.10 ppb |
2014-11-11 | L5320210-3 | 6.60 ppb |
2014-11-11 | L5320210-4 | 6.60 ppb |
2014-11-11 | L5320210-5 | 7.00 ppb |
2014-12-09 | L4648794-6 | 14.4 ppb |
2014-12-09 | L4648794-1 | 16.1 ppb |
2014-12-09 | L4648794-7 | 7.10 ppb |
2014-12-09 | L4648794-8 | 2.00 ppb |
2014-12-09 | L4648794-9 | ND |
2014-12-09 | L4648794-2 | 7.70 ppb |
2014-12-09 | L4648794-3 | 6.80 ppb |
2014-12-09 | L4648794-4 | 6.40 ppb |
2014-12-09 | L4648794-5 | 7.10 ppb |
2015-01-13 | 12272411 | 13.1 ppb |
2015-01-13 | 12272406 | 14.5 ppb |
2015-01-13 | 12272412 | 6.80 ppb |
2015-01-13 | 12272407 | 8.10 ppb |
2015-02-10 | 12388242 | 10.2 ppb |
2015-02-10 | 12388237 | 13.4 ppb |
2015-02-10 | 12388243 | 6.80 ppb |
2015-02-10 | 12388238 | 8.30 ppb |
2015-03-10 | 12501650 | 14.2 ppb |
2015-03-10 | 12501645 | 15.3 ppb |
2015-03-10 | 12501651 | 7.20 ppb |
2015-03-10 | 12501646 | 8.80 ppb |
2015-04-14 | 12619001 | 14.6 ppb |
2015-04-14 | 12618996 | 17.1 ppb |
2015-04-14 | 12619002 | 7.80 ppb |
2015-04-14 | 12618997 | 9.30 ppb |
2015-05-12 | 12736235 | 13.4 ppb |
2015-05-12 | 12736230 | 17.2 ppb |
2015-05-12 | 12736236 | 7.40 ppb |
2015-05-12 | 12736231 | 9.10 ppb |
2015-06-09 | 12867639 | 12.1 ppb |
2015-06-09 | 12867634 | 17.0 ppb |
2015-06-09 | 12867640 | 7.70 ppb |
2015-06-09 | 12867635 | 8.50 ppb |
2015-07-14 | 12999514 | 12.9 ppb |
2015-07-14 | 12999509 | 16.0 ppb |
2015-07-14 | 12999515 | 7.50 ppb |
2015-07-14 | 12999510 | 8.80 ppb |
2015-08-11 | 13121453 | 4.90 ppb |
2015-08-11 | 13121448 | 16.0 ppb |
2015-08-11 | 13121454 | 7.50 ppb |
2015-08-11 | 13121449 | 8.80 ppb |
2015-09-08 | 13250071 | 14.5 ppb |
2015-09-08 | 13250066 | 15.6 ppb |
2015-09-08 | 13250072 | 8.20 ppb |
2015-09-08 | 13250067 | 8.90 ppb |
2015-10-13 | 13376411 | 14.6 ppb |
2015-10-13 | 13376406 | 20.1 ppb |
2015-10-13 | 13376412 | 8.70 ppb |
2015-10-13 | 13376407 | 9.40 ppb |
2015-11-10 | 13501141 | 12.6 ppb |
2015-11-10 | 13501136 | 15.6 ppb |
2015-11-10 | 13501142 | 6.80 ppb |
2015-11-10 | 13501137 | 8.30 ppb |
2015-12-08 | 13619532 | 11.2 ppb |
2015-12-08 | 13619527 | 15.5 ppb |
2015-12-08 | 13619533 | 7.20 ppb |
2015-12-08 | 13619528 | 8.20 ppb |
2016-01-12 | 13739030 | 15.7 ppb |
2016-01-12 | 13739025 | 16.5 ppb |
2016-01-12 | 13739031 | 8.20 ppb |
2016-01-12 | 13739026 | 9.00 ppb |
2016-02-09 | 13856546 | 12.9 ppb |
2016-02-09 | 13856541 | 13.9 ppb |
2016-02-09 | 13856547 | 7.20 ppb |
2016-02-09 | 13856542 | 7.80 ppb |
2016-03-08 | 13972708 | 15.6 ppb |
2016-03-08 | 13972703 | 16.6 ppb |
2016-03-08 | 13972709 | 4.30 ppb |
2016-03-08 | 13972704 | 9.30 ppb |
2016-04-19 | 14087717 | 12.6 ppb |
2016-04-19 | 14087712 | 14.6 ppb |
2016-04-19 | 14087718 | 7.10 ppb |
2016-04-19 | 14087713 | 8.20 ppb |
2016-05-03 | 14234917 | 12.1 ppb |
2016-05-03 | 14234912 | 13.0 ppb |
2016-05-03 | 14234918 | 7.10 ppb |
2016-05-03 | 14234913 | 7.50 ppb |
2016-06-07 | 14551936 | 11.9 ppb |
2016-06-07 | 14551931 | 13.8 ppb |
2016-06-07 | 14551937 | 6.80 ppb |
2016-06-07 | 14551932 | 7.90 ppb |
2016-07-06 | 14552059 | 11.9 ppb |
2016-07-06 | 14552054 | 14.2 ppb |
2016-07-06 | 14552060 | 6.90 ppb |
2016-07-06 | 14552055 | 7.60 ppb |
2016-08-02 | 14718095 | 11.7 ppb |
2016-08-02 | 14718090 | 15.2 ppb |
2016-08-02 | 14718096 | 7.60 ppb |
2016-08-02 | 14718091 | 8.90 ppb |
2016-09-13 | 14889692 | 11.2 ppb |
2016-09-13 | 14889687 | 13.9 ppb |
2016-09-13 | 14889693 | 6.80 ppb |
2016-09-13 | 14889688 | 8.20 ppb |
2016-10-04 | 15060824 | 12.2 ppb |
2016-10-04 | 15060819 | 13.1 ppb |
2016-10-04 | 15060825 | 7.10 ppb |
2016-10-04 | 15060820 | 8.30 ppb |
2016-11-01 | 15211650 | 11.3 ppb |
2016-11-01 | 15211645 | 14.4 ppb |
2016-11-01 | 15211651 | 7.10 ppb |
2016-11-01 | 15211646 | 8.30 ppb |
2016-12-06 | 15356098 | 12.2 ppb |
2016-12-06 | 15356093 | 15.5 ppb |
2016-12-06 | 15356099 | 7.80 ppb |
2016-12-06 | 15356094 | 9.50 ppb |
2017-01-03 | 15500652 | 12.7 ppb |
2017-01-03 | 15500647 | 15.3 ppb |
2017-01-03 | 15500653 | 8.70 ppb |
2017-01-03 | 15500648 | 9.60 ppb |
2017-02-21 | 15641395 | 12.5 ppb |
2017-02-21 | 15641390 | 15.0 ppb |
2017-02-21 | 15641396 | 8.40 ppb |
2017-02-21 | 15641391 | 9.50 ppb |
2017-03-07 | 15780350 | 11.2 ppb |
2017-03-07 | 15780345 | 13.1 ppb |
2017-03-07 | 15780351 | 6.70 ppb |
2017-03-07 | 15780346 | 7.80 ppb |
2017-04-04 | 15920176 | 12.0 ppb |
2017-04-04 | 15920171 | 15.3 ppb |
2017-04-04 | 15920177 | 7.40 ppb |
2017-04-04 | 15920172 | 8.50 ppb |
2017-05-02 | 16078300 | 13.1 ppb |
2017-05-02 | 16078295 | 14.2 ppb |
2017-05-02 | 16078296 | 9.20 ppb |
2017-06-06 | 16240700 | 12.7 ppb |
2017-06-06 | 16240695 | 15.0 ppb |
2017-06-06 | 16240701 | 8.60 ppb |
2017-06-06 | 16240696 | 9.30 ppb |
2017-07-11 | 16397658 | 11.2 ppb |
2017-07-11 | 16397653 | 13.0 ppb |
2017-07-11 | 16397659 | 7.10 ppb |
2017-07-11 | 16397654 | 8.90 ppb |
2017-08-01 | 16548734 | 13.2 ppb |
2017-08-01 | 16548739 | 11.9 ppb |
2017-08-01 | 16548740 | 8.10 ppb |
2017-08-01 | 16548735 | 10.2 ppb |
2017-09-05 | 16711089 | 11.6 ppb |
2017-09-05 | 16711090 | 7.80 ppb |
2017-10-03 | 16865000 | 11.0 ppb |
2017-10-03 | 16865001 | 6.40 ppb |
2017-11-07 | 17008973 | 10.00 ppb |
2017-11-07 | 17008974 | 6.20 ppb |
2017-12-05 | 17146896 | 10.00 ppb |
2017-12-05 | 17146897 | 6.40 ppb |
2018-01-02 | L6989304-2 | 6.40 ppb |
2018-02-06 | L6997866-2 | 8.10 ppb |
2018-02-09 | L6999417-1 | 8.30 ppb |
2018-03-06 | 8031228-14 | 7.00 ppb |
2018-03-12 | 8032597-02 | 9.00 ppb |
2018-04-03 | 8033288-14 | 6.00 ppb |
2018-04-03 | 8033288-09 | 10.00 ppb |
2018-05-01 | 8043525-14 | 7.00 ppb |
2018-05-01 | 8043525-09 | 11.0 ppb |
2018-06-05 | 8052856-14 | 6.00 ppb |
2018-06-05 | 8052856-09 | 7.00 ppb |
2018-07-03 | 8063597-14 | 7.00 ppb |
2018-07-03 | 8063597-09 | 8.00 ppb |
2018-08-07 | 8073956-14 | 5.00 ppb |
2018-08-07 | 8073956-09 | 6.00 ppb |
2018-09-04 | 8084661-14 | 7.00 ppb |
2018-09-04 | 8084661-09 | 7.00 ppb |
2018-10-02 | 8093064-14 | 6.00 ppb |
2018-10-02 | 8093064-09 | 7.00 ppb |
2018-11-06 | 8103421-14 | 7.00 ppb |
2018-11-06 | 8103421-09 | 8.00 ppb |
2018-12-03 | 8110451-09 | 7.00 ppb |
2018-12-17 | 8121695-01 | 6.00 ppb |
2019-01-08 | 8123126-14 | 6.00 ppb |
2019-01-08 | 8123126-09 | 7.00 ppb |
2019-02-05 | 9012911-14 | 7.00 ppb |
2019-02-05 | 9012911-09 | 7.00 ppb |
2019-03-05 | 9023192-14 | 7.00 ppb |
2019-03-05 | 9023192-09 | 7.00 ppb |
2019-04-02 | 9033141-14 | 6.00 ppb |
2019-04-02 | 9033141-09 | 8.00 ppb |
2019-05-07 | 9043641-14 | 7.00 ppb |
2019-05-07 | 9043641-09 | 8.00 ppb |
2019-06-04 | 9053890-14 | 6.00 ppb |
2019-06-04 | 9053890-09 | 6.00 ppb |
2019-07-02 | 9063463-14 | 6.00 ppb |
2019-07-02 | 9063463-09 | 7.00 ppb |
2019-08-06 | 9074008-14 | 6.00 ppb |
2019-08-06 | 9074008-09 | 7.00 ppb |
2019-09-03 | 9084134-14 | 6.00 ppb |
2019-09-03 | 9084134-09RE | 7.00 ppb |
2019-10-01 | 9093003-14 | 6.00 ppb |
2019-10-01 | 9093003-09 | 7.00 ppb |
2019-11-05 | 9103267-14 | 6.00 ppb |
2019-11-05 | 9103267-09 | 8.00 ppb |
2019-12-03 | 9113322-14 | 9.00 ppb |
2019-12-03 | 9113322-09 | 9.00 ppb |