Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

North Branch Lizard Creek IA 04-UDM-1288

mouth (S2 T91N R31W Pocahontas Co.) to confluence with Drainage Ditch No. 169 in S6 T91N R31W Pocahontas Co.

Assessment Cycle
2000
Result Period
1996 - 1998
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-0327_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Documentation
Assessment Comments

Assessment is based on results of a September 1994 DNR stream use assessment.

Basis for Assessment

SUMMARY:  The Class B(LR) aquatic life uses remain assessed as "partially supported."  EXPLANATION:  Continue to use the assessment of support of the Class B(LR) uses developed for the 1996 and 1998 reports (see above).   The results of the September 1994 DNR stream use assessment in Pocahontas County-upon which the previous assessment of the Class B(LR) uses was based ("partially supported")-are approximately 5 years old and thus can be used to assess current water quality conditions.   As stated in the assessment developed for the 1998 report (see above), follow-up monitoring is needed in this stream reach to determine the status of aquatic communities and habitats and to determine the degree to which the Class B(LR) uses may be impaired.

Monitoring and Methods
Assessment Key Dates
9/1/1994 DNR Stream Use Assessment
Methods
330 Fish surveys
375 Visual observation-- may not quantify some parameters-- single season-- by prof.
Monitoring Levels
Biological 2
Habitat 3
Physical Chemistry 0
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A