Maquoketa River IA 01-MAQ-13
Deep Cr. (Jackson Co.) to confluence with N. Fk. Maquoketa R. in S13 T84N R2E Jackson Co.
- Assessment Cycle
- 2020
- Release Status
- Final
- Data Collection Period
- Overall IR Category
- 5 - Water is impaired or threatened and a TMDL is needed.
- Trend
- Stable
- Created
- 8/7/2020 6:25:43 AM
- Updated
- 10/13/2020 10:44:40 AM
Assessment Summary
The Class A1 use was assessed as "partially supported" due to levels of indicator bacteria (E. coli) that exceeded state water quality criteria. The Class BWW1 use was assessed as “fully supported” based on water quality monitoring data and biological sampling data. The Class HH use was assessed as “fully supported” based on fish tissue sampling data and water quality monitoring data.
Assessment Explanation
Sources of Data: Data Source Data Source ID Data Type Data Age Site ID Site Name Site Description Iowa DNR 6 WQ CY 2016-2018 10490005 Maquoketa River at Spragueville Iowa DNR 6 BIO See Below 1153 Maquoketa River Spragueville Iowa DNR 6 FT See Below 175 Maquoketa River NE of Maquoketa Class A1 - Indicator
Bacteria: Site ID Data Source ID # Samples / # Years 2016 Geometric Mean 2017 Geometric Mean 2018 Geometric Mean Annual Geometric Mean Violation # Violations % Violations Significantly >10% Violations Assessment Type Support Level 10490005 6 22 / 3 374.72 389.13 619.89 Yes 16 73% Yes Monitored Partial Class A - pH: Site ID Data Source ID # Samples / # Years Maximum Value Mean Value Median Value # Violations % Violations Significantly >10% Violations Assessment Type Support Level 10490005 6 36 / 3 8.4 8.2 8.2 0 0% No Monitored Full Class BWW1 -
Conventional Parameters: Site ID Data Source ID Parameter Name # Samples / # Years Maximum Value Mean Value Median Value # Acute / Chronic Violations % Acute/ Chronic Violations Significantly >10% Violations Assessment Type Support Level 10490005 6 Ammonia 36 / 3 0.36 0.05 0.02 0 / 0 0% / 0% No Monitored Full 10490005 6 Chloride 36 / 3 23 19 19 0 / 0 0% / 0% No Monitored Full 10490005 6 Dissolved oxygen 36 / 3 14.3 10.7 10.7 NA / 0 NA / 0% No Monitored Full 10490005 6 pH 36 / 3 8.4 8.2 8.2 0 / NA 0% / NA No Monitored Full 10490005 6 Sulfate 36 / 3 27 20.4 21 0 / NA 0% / NA No Monitored Full 10490005 6 Temperature 36 / 3 26.7 11.7 11.9 0 / 0 0% / 0% No Monitored Full Class BWW1 - Toxic
Parameters: Site ID Data Source ID Parameter Name # Samples / # Years Maximum Value Mean Value Median Value # Acute / Chronic Violations % Acute/ Chronic Violations >1 Acute / Chronic Violation Assessment Type Support Level 10490005 6 Aluminum 9 / 2 3.9 1.42 0.76 0 / 0 0% / 0% No Evaluated Full 10490005 6 Arsenic 9 / 2 1.2 0.8 0.8 0 / 0 0% / 0% No Evaluated Full 10490005 6 Cadmium 9 / 2 0.025 0.025 0.025 0 / 0 0% / 0% No Evaluated Full 10490005 6 Chromium 9 / 2 1.2 0.85 0.92 0 / 0 0% / 0% No Evaluated Full 10490005 6 Copper 9 / 2 1.4 0.74 0.71 0 / 0 0% / 0% No Evaluated Full 10490005 6 Lead 9 / 2 0.23 0.067 0.025 0 / 0 0% / 0% No Evaluated Full 10490005 6 Nickel 9 / 2 2.5 2 2.2 0 / 0 0% / 0% No Evaluated Full 10490005 6 Selenium 9 / 2 1.4 0.99 0.97 0 / 0 0% / 0% No Evaluated Full 10490005 6 Zinc 9 / 2 8.4 2 0.9 0 / 0 0% / 0% No Evaluated Full Class BWW1 - Biological
Sampling: Benthic Macroinvertebrates: Site ID Date Drainage Area (mi2) Ecoregion
Major Drainage BM Sample Gear BMIBI score BMIBI Class 47f BMIBI BIT BMIBI Pass/ Fail 1153 9/11/17 1677 47f MS Floating Art Sub 80 Excellent 51 Pass Overall:
Community Assessment Type Assessment Result Support Level Earned IR Category Actual IR Category Reason Benthic
Macroinvertebrate Evaluated Pass (1/1) Full Fish NA NA NA Overall Evaluated Pass Full 1 1 Assessment is evaluated because segment did not have two BM
and/or fish samples collected in last five years and watershed size was
larger than calibrated range. Class HH-F - Toxic
Parameters: Site ID Data Source ID Parameter Name # Samples / # Years Maximum Value Mean Value Median Value Number of Non - Detects Mean Value > Criterion or MCL Assessment Type Support Level 10490005 6 Cadmium 9 / 2 0.025 0.025 0.025 9 No All Non-Detect Full 10490005 6 Chromium 9 / 2 1.2 0.85 0.92 0 No Evaluated Full 10490005 6 Copper 9 / 2 1.4 0.74 0.71 0 No Evaluated Full 10490005 6 Nickel 9 / 2 2.5 2 2.2 0 No Evaluated Full 10490005 6 Selenium 9 / 2 1.4 0.99 0.97 1 No Evaluated Full 10490005 6 Zinc 9 / 2 8.4 2 0.9 0 No Evaluated Full Class HH – Fish Tissue
Sampling: Site ID Date Species Chlordane Result Chlordane Violation (>0.6)? Mercury Result Mercury Violation (>0.3)? PCBs Result PCBs Violation (>0.2)? Assessment Type Support Level 175 9/16/16 Common Carp <0.02 No 0.05 No <0.06 No Monitored Full 175 8/25/14 Common Carp <0.06 No 0.06 No <0.24* No Monitored Full
*In 2014, the lab
reported non-detected Total PCB results as <0.24 ppm which is higher than
Iowa’s one meal/week advisory level.
Assessment Key Dates
| 1/5/2016 | Fixed Monitoring Start Date |
| 12/6/2018 | Fixed Monitoring End Date |
| 8/25/2014 | Fish Tissue Monitoring |
| 9/16/2016 | Fish Tissue Monitoring |
| 9/11/2017 | Biological Monitoring |
Methods
| 210 | Fixed station physical/chemical monitoring (conventional pollutants only) |
| 260 | Fish tissue analysis |
| 315 | Regional reference site approach |
| 320 | Benthic macroinvertebrate surveys |
| 420 | Indicator bacteria monitoring |