Cedar Creek IA 04-RAC-1819
from confluence with Little Cedar Cr. (S15 T90N R34W Pocahontas Co.) to confluence with Drainage Ditch 21 in S7 T91N R33W Pocahontas Co.
The presumptive Class BWW1 use was assessed as "WINOFI" based on biological sampling data and a 2023 fish kill. All other designated uses were "not assessed."
Data Sources: Data Source Data Source ID Data Type Data Age Site ID Site Name Site Description Iowa DNR 6 BIO See Below 228 Big Cedar Creek Fonda Benthic Macroinvertebrates: BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage BM Sample Gear BMIBI score BMIBI Class 47b BMIBI BIT BMIBI Pass/Fail 228 9/27/06 81 47b MS Hess 38 Fair 62 Fail BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage Riffle Stream? FIBI score FIBI Class 47b FIBI BIT FIBI Pass/Fail 228 9/27/06 81 47b MS Yes 57 Good 53 Pass Community Assessment Type Assessment Result Support Level IR Category Reason Benthic Macroinvertebrates Evaluated Fail (0/1) WINOFI Fish Evaluated Pass (1/1) Full Assessment was
evaluated because it was based on samples Overall Evaluated Fail WINOFI 3bc on samples
not collected in a recent five-year period.
Presumptive Class A1 - No Data
Presumptive Class BWW1 - Biological Sampling:
Fish:
Overall:
Presumptive Class BWW1 - Fish Kill Assessment:
The presumptive Class BWW1 use assessment based on the 2023 fish kill placed this segment in Category 3b.This assessment was “evaluated” because there was a single fish kill on this segment in the last five years. Segments assessed using “evaluated” assessments are placed in Category 3b and are added to the state list of Waters In Need Of Further Investigation (WINOFI). If no additional fish kills are reported in this segment for a 5-year period (2024-2028), the category will be changed from 3b to 3a (not assessed).