Alachlor (Lasso)
Status: National drinking water standard exists
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
2015-2017:
FOUND
FOUND ABOVE LEGAL LIMIT
12
states detected
106
utilities detected
2.5 million
people served
0
states over legal limit
0
utilities over legal limit
0
people served over legal limit
Health concerns for alachlor
Cancer
Harm to the liver
Harm to the kidney
Harm to the spleen
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 2 ppb
The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.
ppb = parts per billion
States reporting alachlor in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| Ohio | 14 | 1,263,203 | |
| Missouri | 58 | 859,491 | |
| Louisiana | 2 | 197,304 | |
| Florida | 6 | 155,614 | |
| Kansas | 12 | 25,211 | |
| Nebraska | 3 | 11,281 | |
| Nevada | 2 | 5,700 | |
| Wisconsin | 4 | 3,580 | |
| Kentucky | 1 | 3,490 | |
| Delaware | 2 | 145 | |
| Oregon | 1 | 65 | |
| Indiana | 1 | 40 | |
MORE
LESS
Filtering technologies that reduce alachlor
Activated Carbon
Reverse Osmosis
Utilities with the highest amounts of alachlor, 2015-2017
ALL UTILITIES
LARGE UTILITIES
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Sussex Manor Mobile Home Park | Dagsboro, DE | 1 of 1 | 0.610 ppb | 49 |
| Sturgis Water Works | Sturgis, KY | 1 of 4 | 0.500 ppb | 3,490 |
| Muscatatuck Urban Training Center | Butlerville, IN | 1 of 3 | 0.500 ppb | 40 |
| Poynette Mobile Estates | Poynette, WI | 12 of 12 | 0.473 ppb | 150 |
| Imperial, City of | Imperial, NE | 1 of 5 | 0.169 ppb | 2,071 |
| Teal Point | Milford, DE | 1 of 1 | 0.150 ppb | 96 |
| Maysville PWS | Maysville, MO | 2 of 12 | 0.118 ppb | 1,100 |
| City of Fort Meade | Fort Meade, FL | 1 of 2 | 0.1000 ppb | 5,455 |
| Obetz Satellite 2 Public Water System | Obetz, OH | 6 of 19 | 0.0995 ppb | 1,150 |
| Lockbourne Village Public Water System | Lockbourne, OH | 6 of 19 | 0.0995 ppb | 275 |
| Gahanna City PWS | Gahanna, OH | 6 of 19 | 0.0995 ppb | 33,323 |
| Reynoldsburg City PWS | Reynoldsburg, OH | 6 of 19 | 0.0995 ppb | 35,893 |
| Sanitary District #4 | Columbus, OH | 6 of 19 | 0.0995 ppb | 8,575 |
| Obetz Satellite 6 Public Water System | Obetz, OH | 6 of 19 | 0.0995 ppb | 73 |
| Leonard Park Public Water System | Columbus, OH | 6 of 19 | 0.0995 ppb | 266 |
| Bexley City PWS | Bexley, OH | 6 of 19 | 0.0995 ppb | 13,650 |
| Columbus Public Water System* | Columbus, OH | 6 of 19 | 0.0995 ppb | 1,159,817 |
| Obetz Satellite 1 Public Water System | Obetz, OH | 6 of 19 | 0.0995 ppb | 192 |
| Frostproof, City of | Frostproof, FL | 2 of 6 | 0.0867 ppb | 3,550 |
| Middle Fork Water County* | Maryville, MO | 1 of 12 | 0.0625 ppb | 25 |
| Stanberry PWS* | Stanberry, MO | 1 of 12 | 0.0625 ppb | 1,200 |
| Grant City PWS* | Grant City, MO | 1 of 12 | 0.0625 ppb | 826 |
| Bluffton Village | Bluffton, OH | 3 of 12 | 0.0500 ppb | 4,125 |
| Ottawa Village* | Ottawa, OH | 3 of 12 | 0.0500 ppb | 4,803 |
| Glandorf Village | Glandorf, OH | 3 of 12 | 0.0500 ppb | 1,001 |
| Putnam County-east Ottawa | Ottawa, OH | 3 of 12 | 0.0500 ppb | 60 |
| Clay County Public Water Supply District 2 | Liberty, MO | 2 of 30 | 0.0480 ppb | 3,345 |
| Clay County Public Water Supply District 5 | Liberty, MO | 2 of 30 | 0.0480 ppb | 1,000 |
| Clay County Public Water Supply District 6 | Kearney, MO | 2 of 30 | 0.0480 ppb | 4,700 |
| Clay County Public Water Supply District 8 | Excelsior Springs, MO | 2 of 30 | 0.0480 ppb | 2,090 |
| Clay County Public Water Supply District 9 | Smithville, MO | 2 of 30 | 0.0480 ppb | 2,532 |
| Jackson County PWSD1 | Grandview, MO | 2 of 30 | 0.0480 ppb | 24,475 |
| Platte County Public Water Supply District 2 | Camden Point, MO | 2 of 30 | 0.0480 ppb | 815 |
| Platte County Cons Public Water Supply District 1 | Kansas City, MO | 2 of 30 | 0.0480 ppb | 5,025 |
| Platte County Public Water Supply District 9* | Dearborn, MO | 2 of 30 | 0.0480 ppb | 1,505 |
| Cass County Public Water Supply District 3 | Raymore, MO | 2 of 30 | 0.0480 ppb | 2,736 |
| Cass County Public Water Supply District 2* | Belton, MO | 2 of 30 | 0.0480 ppb | 3,665 |
| Cass County Public Water Supply District 6 | Raymore, MO | 2 of 30 | 0.0480 ppb | 2,307 |
| Belton* | Belton, MO | 2 of 30 | 0.0480 ppb | 23,175 |
| Birmingham Village of | Birmingham, MO | 2 of 30 | 0.0480 ppb | 190 |
| Dearborn PWS | Dearborn, MO | 2 of 30 | 0.0480 ppb | 575 |
| Kansas City* | Kansas City, MO | 2 of 30 | 0.0480 ppb | 460,000 |
| Lathrop PWS* | Lathrop, MO | 2 of 30 | 0.0480 ppb | 2,898 |
| Ferrelview PWS | Ferrelview, MO | 2 of 30 | 0.0480 ppb | 455 |
| Northmoor PWS | Northmoor, MO | 2 of 30 | 0.0480 ppb | 323 |
| Platte City PWS | Platte City, MO | 2 of 30 | 0.0480 ppb | 4,977 |
| Raymore | Raymore, MO | 2 of 30 | 0.0480 ppb | 19,963 |
| Raytown Water Company | Raytown, MO | 2 of 30 | 0.0480 ppb | 21,135 |
| Weatherby Lake PWS | Weatherby Lake, MO | 2 of 30 | 0.0480 ppb | 1,923 |
| Cass County Public Water Supply District 10 | Peculiar, MO | 2 of 30 | 0.0480 ppb | 3,200 |
* 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 Alachlor (Lasso), but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Columbus Public Water System* | Columbus, OH | 6 of 19 | 0.0995 ppb | 1,159,817 |
| Reynoldsburg City PWS | Reynoldsburg, OH | 6 of 19 | 0.0995 ppb | 35,893 |
| Gahanna City PWS | Gahanna, OH | 6 of 19 | 0.0995 ppb | 33,323 |
| Bexley City PWS | Bexley, OH | 6 of 19 | 0.0995 ppb | 13,650 |
| Jackson County PWSD1 | Grandview, MO | 2 of 30 | 0.0480 ppb | 24,475 |
| Raytown Water Company | Raytown, MO | 2 of 30 | 0.0480 ppb | 21,135 |
| Raymore | Raymore, MO | 2 of 30 | 0.0480 ppb | 19,963 |
| Kansas City* | Kansas City, MO | 2 of 30 | 0.0480 ppb | 460,000 |
| Belton* | Belton, MO | 2 of 30 | 0.0480 ppb | 23,175 |
| Miramar (East & West) Plants | Miramar, FL | 1 of 6 | 0.0433 ppb | 128,729 |
| Thomas Hill PWSD 1* | Moberly, MO | 1 of 12 | 0.0400 ppb | 10,315 |
| Public Wholesale WSD 5* | Iola, KS | 1 of 10 | 0.0290 ppb | 12,192 |
| West Jefferson Waterworks District 2* | Jefferson, LA | 1 of 11 | 0.0182 ppb | 188,770 |
* 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 Alachlor (Lasso), but it likely has the contaminant in its water supply.