Cleanest/Best Counties

National Average

Dirtiest/Worst Counties

0%					50%					100%

Percentage of Surface Waters with Impaired or Threatened Uses (state + EPA data):

Number of Impaired Waterbodies (as reported by the state):

NOTE: Data limitations affect the accuracy of these rankings.

Rank counties in TEXAS or in the U.S. by assessed use impairments.
Rank watersheds in TEXAS by assessed use impairments
Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

HARRIS County contains a portion of 5 watersheds:

Buffalo-San Jacinto

North Galveston Bay

Spring

West Fork San Jacinto

West Galveston Bay

Percentage of Surface Waters with Reported Problems (state + EPA data): 35%

Number of Waterbodies with Reported Problems (as reported by the state): 36

Priority for Regulation	Number of Waterbodies
Targeted	7
High	4
Medium	19
Low	6
Not Assessed for TMDL Priority	0
Not Reported to US EPA for TMDL Priority	0

Rivers, Streams, and Creeks
Number of impaired waterbodies: 20
Percent of Rivers, Streams and Creeks in TEXAS assessed by agencies for 1997-98 reporting period: 7%

	Percent Waterbodies Affected
Pathogens	85%
Low Dissolved Oxygen/Organic Enrichment	40%
Metals	20%
Salinity/TDS/Chlorides	15%
Mercury	10%
More...

NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.

Rivers, Streams, and Creeks
Number of impaired waterbodies: 20
Percent of Rivers, Streams and Creeks in TEXAS assessed by agencies for 1997-98 reporting period: 7%

	Percent Waterbodies Affected
Nonpoint Sources	90%
Municipal Point Sources	85%

NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.

Scorecard's report on

• Watershed indicators
• Toxic chemical releases from industrial facilities (TRI)
• Criteria air pollutants
• Hazardous air pollutants
• Land contamination

Drinking Water Sources for this County