Query Form
Search for Microbial and Disinfection Byproduct (DBP) Information
The Information Collection Rule (ICR) query form allows you to retrieve disinfection byproduct and microbial reports at the national, state, and utility levels.
REMINDER: The ICR data were collected from July 1997 to December 1998. All the data have been verified, and the database is complete. EPA will use the data to identify national and regional patterns, not to reach system-by-system or treatment plant-by-treatment plant conclusions. The data that you will see are from individual samples. What EPA will evaluate is the degree to which the samples represent overall water quality. Several states (and two U.S. territories) did not participate in the ICR: Montana, North Dakota, Vermont, Wyoming, the Virgin Islands, and Guam. |
National Level:
Please select the report you would like to see. Reports are available for both disinfection byproducts and microbials.
State Level:
To retrieve State or Utility level disinfection byproduct or microbial reports, click a state on the map or text links below.
Several states (and two U.S. territories) did not participate in the ICR: Montana, North Dakota, Vermont, Wyoming, the Virgin Islands, and Guam.
![Click on a state](https://webarchive.library.unt.edu/eot2008/20081019134242im_/http://www.epa.gov/enviro/gif/us_map.gif)
Alaska | Alabama | Arkansas | Arizona | California | Colorado | Connecticut | District of Columbia | Delaware | Florida | Georgia | Guam | Hawaii | Iowa | Idaho | Illinois | Indiana | Kansas | Kentucky | Louisiana | Maine | Maryland | Massachusetts | Michigan | Minnesota | Mississippi | Missouri| Montana | North Carolina | North Dakota | Nebraska | Nevada | New Hampshire | New Jersey | New Mexico | New York | Ohio | Oklahoma | Oregon | Pennsylvania | Puerto Rico | Rhode Island | South Carolina | South Dakota | Tennessee | Texas | Utah | Virginia | Virgin Islands | Vermont | Washington | Wisconsin | West Virginia | Wyoming |