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<p><sup>2</sup> – MPCA Bacterial Impairment Standard: 126 E. coli/100mL (geometric mean of 5 samples in 30 day period); no individual samples greater than 1260 E. coli/100mL</p>
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<font size=1><sup>2</sup> – MPCA Bacterial Impairment Standard: 126 E. coli/100mL (geometric mean of 5 samples in 30 day period); no individual samples greater than 1260 E. coli/100mL<br>
<p><sup>3</sup> – EPA 2012 Recreational Water Quality Criteria – Recommendation 1 (Estimated illness rate = 36/1000)</p>
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<sup>3</sup> – EPA 2012 Recreational Water Quality Criteria – Recommendation 1 (Estimated illness rate = 36/1000)<br>
<p><sup>4</sup> – Based on typical range/value for water reuse programs in other states</p>
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<sup>4</sup> – Based on typical range/value for water reuse programs in other states<br>
<p><sup>5</sup> –Useful for distribution system design, but often used a general indicator parameter, too.</p>
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<sup>5</sup> –Useful for distribution system design, but often used a general indicator parameter, too.<br>
<p><sup>6</sup> – TSS guidance provided by Cathy Tran, DLI</p>
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<sup>6</sup> – TSS guidance provided by Cathy Tran, DLI<br>
<p><sup>7</sup> – Per Table R.3b.6 in Metropolitan Council Stormwater Reuse Guide</p>
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<sup>7</sup> – Per Table R.3b.6 in Metropolitan Council Stormwater Reuse Guide<br>
<p><sup>8</sup> – Suggested by Bruce Wilson. Per Table R.3b.5 in Metropolitan Council Stormwater Reuse Guide</p>
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<sup>8</sup> – Suggested by Bruce Wilson. Per Table R.3b.5 in Metropolitan Council Stormwater Reuse Guide<br>
<p><sup>9</sup> - Recommendation from Anita Anderson on 12/6/2012 email as temperature impacts bacterial growth</p>
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<sup>9</sup> - Recommendation from Anita Anderson on 12/6/2012 email as temperature impacts bacterial growth<br>
<p><sup>10</sup> –Per Tables R.1a.1 and R.3b.5 in Metropolitan Council Stormwater Reuse Guide</p>
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<sup>10</sup> –Per Tables R.1a.1 and R.3b.5 in Metropolitan Council Stormwater Reuse Guide</font size>
  
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Revision as of 13:38, 19 August 2013

Summary of sate of Minnesota water quality guidelines for stormwater harvesting and reuse systems for Irrigation
Link to this table
Water Quality Parameter Impact of Parameter 10 Water Quality Guideline – Public Access Areas Water Quality Guideline – Restricted Access Areas Water Quality Guideline – Irrigation of Food Crops Comments
E. coli Public Health 126 E. coli/100mL Guidance to be determined at a future date Guidance to be determined at a future date 2,3
Turbidity Irrigation System Function 2-3 NTU Guidance to be determined at a future date Guidance to be determined at a future date 4,5
TSS Irrigation System Function 5 mg/L Guidance to be determined at a future date Guidance to be determined at a future date 4,5,6
pH Plant Health 6-9 Guidance to be determined at a future date Guidance to be determined at a future date 4
Chloride Plant Health; Corrosion of Metals 500 mg/L Guidance to be determined at a future date Guidance to be determined at a future date 7
Zinc Plant Health 2 mg/L (longterm use); 10 mg/L (shortterm use) Guidance to be determined at a future date Guidance to be determined at a future date 8
Copper Plant Health 0.2 mg/L (longterm use); 5 mg/L (shortterm use) Guidance to be determined at a future date Guidance to be determined at a future date 8
Temperature Public Health Guidance to be determined at a future date Guidance to be determined at a future date Guidance to be determined at a future date 9

2 – MPCA Bacterial Impairment Standard: 126 E. coli/100mL (geometric mean of 5 samples in 30 day period); no individual samples greater than 1260 E. coli/100mL
3 – EPA 2012 Recreational Water Quality Criteria – Recommendation 1 (Estimated illness rate = 36/1000)
4 – Based on typical range/value for water reuse programs in other states
5 –Useful for distribution system design, but often used a general indicator parameter, too.
6 – TSS guidance provided by Cathy Tran, DLI
7 – Per Table R.3b.6 in Metropolitan Council Stormwater Reuse Guide
8 – Suggested by Bruce Wilson. Per Table R.3b.5 in Metropolitan Council Stormwater Reuse Guide
9 - Recommendation from Anita Anderson on 12/6/2012 email as temperature impacts bacterial growth
10 –Per Tables R.1a.1 and R.3b.5 in Metropolitan Council Stormwater Reuse Guide