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Comment Response `la} 13,'u-'` 1. Information has been added to Section Michael Grochala Lino and the Water Appropriations memo City Michael Lakes (Appendix C)with additional detail. 600 Town Ccntcr Pkwy Lino Lakes,MN 55014 2. A statement has been added to the Water Appropriations memo (Appendix C) acknowledging the possibility of pre-code Dear Michael Grochala, unlocated wells and developer's locating to Thank you for providing the Minnesota Department of health (MDII) with the opportunity to locate and property seal any wells found during comment on the 1-35E Corridor Alternative Urban Areawide Review (AUAR) Update. The development. mission of MDH is to protect,maintain,and improve the health of all Minnesotans,The careful planning and development of projects such as this one supports this mission and is an important 3. The City's Wellhead Protection Plan was step in ensuring health in all policies. adopted in 2015. A 2021 evaluation of the MDH has the following comments for Appendix C Water Appropriation Memo of this AUAR: effect of Well 6 on the DWSMA includedreclassifying the entirety of the Lino Lakes Section 1 La.ii refers to Appendix C for additional information.however,neither the response to DWSMA to Moderate Vulnerability based on Section I I.a.ii or Appendix C discuss depth in greater detail than"shallow groundwater'.This is 1❑ the latest MDH guidance at that time, which will a subjective description.Consider that private wells in the study area,especially pre-code wells, be memorialized in the City's upcoming WHPP may be using Quaternary sand and gravel aquifers and what impacts water use, stormwater update. A statement has been added to the management,etc.may have on these wells and shallow groundwater. Water Appropriations memo (Appendix C) ❑The response to Section 1 l.b.iii in Appendix C cotes"approximately y(1 wells within the study regarding Centerville's DWSMA. 2 area"and cites the Minnesota Well Index. However,there are likely many prc-code wells within 4. The White Bear Lake Area Comprehensive the area that arc not included in the Minnesota Well Index. Stornrwatcr management and spill Plan will offer additional information and response should consider all the nearby water supply wells. recommendations about regional groundwater The AUAR mentions the southern portion of the study area overlaps with moderate vulnerability sustainability. A statement has been added to of the City of Lino Lakes Drinking Water Supply Management Area (DWSMA). There is no 3 the Water Appropriations memo (Appendix C) mention of the high vulnerability area around Otter Lake Road. Caution should be taken within that new municipal production wells will this high vulnerability area particularly with stormwatet management and spill prevention. The continue to follow the typical DNR well study area also overlaps with the moderate vulnerability of the City of Centerville DWSMA. permitting process, including test pumping to Centerville's Wellhead Protection Plan is noted as part of item 13.4,but should be included in the evaluate sustainability and interference. discussion. Impacts due to the increase in water use due to the AUAR on both the environment and existing F4. well users are not discussed in the updated AUAR. Stormwater reuse is mentioned throughout the AUAR.Some of these mentions include a statement that stormwater reuse will be evaluated and implemented"where feasible, sustainable,and cost- Comment Response 1 Page 190 of 240