Endrin
Status: National drinking water standard exists
Endrin is a banned organochlorine insecticide that is persistent and bioaccumulative. Endrin damages the nervous, immune and reproductive systems in people. It also harms fish, birds and other wildlife.
2017-2019:
12
states detected
106
utilities detected
3.2 million
people served
1
states over health guideline
1
utilities over health guideline
672
people served over health guideline
1
states over legal limit
1
utilities over legal limit
672
people served over legal limit
Health concerns for endrin
Cancer
Change to the central nervous system
Harm to the immune system
Harm to the reproductive system
State and national drinking water standards and health guidelines
EWG Health Guideline 0.3 ppb
The EWG Health Guideline of 0.3 ppb for endrin 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 change to the heart and blood vessels.
EPA Maximum Contaminant
Level (MCL) 2 ppb
The legal limit for endrin, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.
ppb = parts per billion
States reporting endrin in drinking water
| UTILITIES REPORTING ABOVE HEALTH GUIDELINES | UTILITIES WITH CONTAMINATION | ||||||
|---|---|---|---|---|---|---|---|
| State | Utilities | People Served | Utilities | People Served | |||
| Texas | 0 | 0 | 26 | 2,339,395 | |||
| Louisiana | 0 | 0 | 44 | 451,628 | |||
| Florida | 0 | 0 | 16 | 321,341 | |||
| Indiana | 0 | 0 | 2 | 38,105 | |||
| North Carolina | 0 | 0 | 6 | 16,147 | |||
| Nevada | 0 | 0 | 1 | 8,800 | |||
| Colorado | 0 | 0 | 1 | 8,140 | |||
| Nebraska | 0 | 0 | 6 | 4,873 | |||
| California | 0 | 0 | 1 | 3,403 | |||
| Wisconsin | 0 | 0 | 1 | 1,616 | |||
| Delaware | 0 | 0 | 1 | 999 | |||
| Maryland | 1 | 672 | 1 | 672 | |||
Filtering technologies that reduce endrin
Activated Carbon
Reverse Osmosis
Utilities with the highest amounts of endrin, 2017-2019
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Piney Point | Hollywood, MD | 1 of 2 | 2.33 ppb | 672 |
| Merriman, Village of | Merriman, NE | 1 of 5 | 0.970 ppb | 118 |
| Borrego Water District | Borrego Springs, CA | 1 of 1 | 0.250 ppb | 3,403 |
| Goehner, Village of | Goehner, NE | 1 of 11 | 0.0955 ppb | 185 |
| Wynot, Village of | Wynot, NE | 1 of 2 | 0.0750 ppb | 167 |
| Trempealeau Waterworks | Trempealeau, WI | 1 of 2 | 0.0650 ppb | 1,616 |
| Hyndman Borough Water Department | Hyndman, PA | 1 of 9 | 0.0567 ppb | 1,005 |
| Willow Springs Mobile Home Park | Greenfield, IN | 1 of 3 | 0.0533 ppb | 25 |
| Chapman, Village of | Chapman, NE | 1 of 2 | 0.0500 ppb | 292 |
| Benedict, Village of | Benedict, NE | 1 of 3 | 0.0363 ppb | 234 |
| Elgin, City of | Elgin, NE | 1 of 4 | 0.0258 ppb | 667 |
| Suez Water New Jersey Franklin Lakes* | Haworth, NJ | 1 of 1 | 0.0250 ppb | 5,038 |
| Wauneta, Village of | Wauneta, NE | 1 of 6 | 0.0173 ppb | 577 |
| Evangeline Water Works District 1 - Pine Prairie | Fine Prairie, LA | 2 of 6 | 0.0150 ppb | 2,502 |
| Watchtower Bible Tract Society | Patterson, NY | 1 of 7 | 0.0143 ppb | 1,501 |
| Northwest Grayson County Water Control and Improvement District 1* | Gordonville, TX | 1 of 8 | 0.0138 ppb | 2,706 |
| Bellefonte Borough Water Authority | Bellefonte, PA | 1 of 21 | 0.0114 ppb | 9,500 |
| Happy Acres Mobile Home Park | Franklinton, LA | 2 of 6 | 0.01000 ppb | 120 |
| Valentine, City of | Valentine, NE | 1 of 16 | 0.00813 ppb | 2,737 |
| Warden Water System | Delhi, LA | 2 of 12 | 0.00650 ppb | 240 |
| Walnut Bayou Water Association* | Tallulah, LA | 2 of 12 | 0.00650 ppb | 2,775 |
| Delta Water System | Delta, LA | 2 of 12 | 0.00650 ppb | 399 |
| East Carroll Ws South | Transylvania, LA | 2 of 12 | 0.00650 ppb | 1,227 |
| The Farms At Summerfield | Denver, NC | 1 of 6 | 0.00633 ppb | 46 |
| City of Danbury | Danbury, TX | 2 of 8 | 0.00625 ppb | 2,325 |
| Wallace, Village of | Wallace, NE | 1 of 17 | 0.00588 ppb | 366 |
| Coronado Shores Water System | Silverton, TX | 1 of 7 | 0.00571 ppb | 150 |
| Melbille Heights | Denver, NC | 1 of 6 | 0.00550 ppb | 96 |
| Litroe Water System | Marion, LA | 2 of 8 | 0.00525 ppb | 369 |
| Southern Utilities | Tyler, TX | 2 of 79 | 0.00506 ppb | 59,154 |
| St. Tam Parish - Meadowlake Subdivision | Covington, LA | 2 of 4 | 0.00500 ppb | 1,197 |
| Oak Forest South Water Supply | Austin, TX | 1 of 2 | 0.00500 ppb | 645 |
| St. Lucie Mobile Village | Indiantown, FL | 1 of 2 | 0.00500 ppb | 750 |
| Pike County Water Authority* | Troy, AL | 1 of 28 | 0.00464 ppb | 10,590 |
| North Of Crowley Water Corporation | Rayne, LA | 2 of 8 | 0.00425 ppb | 3,780 |
| Camp-a-wyle Lake Resort | Weeki Wachee, FL | 1 of 2 | 0.00330 ppb | 400 |
| Horse Shoe Road Water System | Doyline, LA | 2 of 8 | 0.00325 ppb | 270 |
| Country Pines North Subdivision Ws | Mandeville, LA | 2 of 22 | 0.00300 ppb | 936 |
| Ballard Farms S/d | Denver, NC | 1 of 6 | 0.00300 ppb | 125 |
| Dixie Inn Water System | Minden, LA | 2 of 14 | 0.00286 ppb | 404 |
| Alma Plantation Ltd | Lakeland, LA | 2 of 10 | 0.00260 ppb | 129 |
| Cedar City Waterworks | Cedar City, UT | 1 of 22 | 0.00259 ppb | 31,223 |
| Mountain Point S/d | Denver, NC | 1 of 8 | 0.00250 ppb | 130 |
| Pleasant Valley Water System | Minden, LA | 2 of 10 | 0.00220 ppb | 918 |
| City of Fort Meade | Fort Meade, FL | 1 of 5 | 0.00200 ppb | 5,455 |
| Tallulah Water System | Tallulah, LA | 2 of 16 | 0.00200 ppb | 9,195 |
| North Franklin Water Works | Crowville, LA | 2 of 56 | 0.00200 ppb | 6,375 |
| Florida Pines Mobile Home Park | Venice, FL | 1 of 2 | 0.00190 ppb | 280 |
| Bermuda Mobile Home Park | Kissimmee, FL | 1 of 7 | 0.00171 ppb | 48 |
| Henlopen Acres, Town of | Rehoboth, DE | 1 of 6 | 0.00167 ppb | 999 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Endrin, but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Southern Utilities | Tyler, TX | 2 of 79 | 0.00506 ppb | 59,154 |
| Pike County Water Authority* | Troy, AL | 1 of 28 | 0.00464 ppb | 10,590 |
| Cedar City Waterworks | Cedar City, UT | 1 of 22 | 0.00259 ppb | 31,223 |
| Indiana American Water - Richmond* | Greenwood, IN | 1 of 54 | 0.00167 ppb | 37,955 |
| Indiana American Water - Muncie | Greenwood, IN | 1 of 25 | 0.000800 ppb | 65,618 |
| Arizona Water Company - Lakeside | Phoenix, AZ | 1 of 20 | 0.000500 ppb | 10,882 |
| Schriever Water Treatment Service Area* | Houma, LA | 2 of 24 | 0.000450 ppb | 97,152 |
| Miramar (East & West) Plants | Miramar, FL | 1 of 16 | 0.000419 ppb | 127,700 |
| Lafayette Utilities Water System* | Lafayette, LA | 2 of 84 | 0.000333 ppb | 175,566 |
| LPWD South | Maurice, LA | 2 of 84 | 0.000333 ppb | 13,089 |
| LPWDN North Region | Lafayette, LA | 2 of 84 | 0.000333 ppb | 17,202 |
| City of Youngsville Purchase Ws | Youngsville, LA | 2 of 84 | 0.000333 ppb | 14,259 |
| Cliffdale West | Hampstead, NC | 1 of 130 | 0.000200 ppb | 15,463 |
| City of Alexandria Water System* | Alexandria, LA | 2 of 192 | 0 ppb | 54,782 |
| Gateway Services District | Fort Myers, FL | 1 of 25 | 0 ppb | 12,717 |
| Lee County Utilities* | Fort Myers, FL | 1 of 25 | 0 ppb | 251,502 |
| Naval Air Station Pensacola / Corry Station | Nas Pensacola, FL | 2 of 52 | 0 ppb | 22,600 |
| City of Houston* | Houston, TX | 1 of 163 | 0 ppb | 2,231,588 |
| City of Webster | Webster, TX | 1 of 163 | 0 ppb | 13,710 |
| City of South Houston | South Houston, TX | 1 of 163 | 0 ppb | 17,397 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Endrin, but it likely has the contaminant in its water supply.