Middle Fork Little Maquoketa River IA 01-TRK-138
Alternate name(s) for this segment: Bankston Creek
from west line of S31 T90N R1E (Dubuque Co.) to north line of S33 T90N R1W Dubuque Co.
The Class BCW1 use was assessed as "not supported" based on based on biological sampling data. 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 & WQ See Below 419 Middle Fork Little Maquoketa River Rickardsville – REMAP #261 Class A2 - No Data Class HH - No Data Class BCW1 - Biological Sampling: Benthic Macroinvertebrates: BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage/Thermal BM Sample Gear CBI score CBI Class CBI BIT CBI Pass/Fail 419 8/31/16 13 52b MS/CW Hess 45 NA 60 Fail 419 7/18/16 13 52b MS/CW Hess 49 NA 60 Fail Community Assessment Type Assessment Result Support Level IR Category Reason Benthic Macroinvertebrates Evaluated Fail (0/2) Not 5bv Assessment was evaluated because it was based on samples not collected
in a recent five-year period. Site ID Data Source ID # Days Monitoring (2016) DO Criteria Type # 2016 violations / Violations needed for impairment Violates Annual Significantly >10% Rule? Assessment Type Support Level 24 hr 4/12 No 419 6 72 16 hr 0/12 No Evaluated Full
Aquatic Life Use - Trout Natural Reproduction
Based on the latest trout reproduction in Iowa streams summary prepared by the DNR Fisheries Bureau, the aquatic life use was assessed as "fully supported." According to the summary, a portion, or all, of this assessment unit was placed in Category I: streams that exhibit consistent natural reproduction and maintain a wild population of one or more trout species without any stocking.
Presumptive Class A1 - No Data
Overall Assessment:
Class BCW1 – Continuous DO Monitoring: 2016