#11 - Northstart 2nd Addition Final Plat and PUD

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\\barr.com\projects\Mpls\23 MN\82\2382020\_MovedFromMpls_P\2023\Permit 2023-01 Schiltgen South, Lake Elmo\PermitLtr_2023-01_SchilgenSouth_Lake Elmo.docx 1. The project shall conform to the VBWD’s stormwater runoff rate and volume control rule throughout construction. 2. Appendix G of the AE2S January 9, 2023, Stormwater Management Plan lists the minimum pervious areas that will be used for irrigation to conform to VBWD rules. These areas shall be recorded at the Washington County Recorder’s office, so they are preserved. Impervious surfaces greater than those listed in Appendix G will be prohibited. 3. The pond liner specification (Sheet GP1) shall be revised to be consistent with the specification in the Minnesota Stormwater Manual: https://stormwater.pca.state.mn.us/index.php?title=Liners_for_stormwater_management. 4. This permit is not valid until a maintenance agreement in the general format of Appendix B of the VBWD Rules is submitted to and approved by the VBWD Attorney. 5. Any drain tile adjacent to Wetland A shall not be lower than Elevation 949.7, and inlets shall be no lower than 950.2. 6. The plans shall be revised to list the 100-year high water levels of Ponds 3N1 and 3N2 at Elevation 934.3. 7. The required surety shall be submitted prior to construction. 8. Approval of this permit does not constitute approval of revisions to Permit 2018-08, Legacy at Northstar. 9. The VBWD recognizes that the proposed development’s management of stormwater runoff for volume and rate control includes an assumption that 5.4 acres of new impervious surface area will be created with a reconstructed Stillwater Boulevard (CSAH 14)-Lake Elmo Avenue (CSAH 17) intersection adjacent to the site. The VBWD will allow the excess capacity to be used for the future intersection reconstruction project, as approved by Washington County, the City of Lake Elmo, and VBWD. 10. The applicant must obtain any necessary approvals from other persons and/or entities with ownership interests in the property affected by the proposed project. It is the applicant’s burden to obtain any and all necessary permissions or ownership rights to property not owned by the applicant, including prescriptive easements. The applicant must obtain any necessary permits. 11. This permit is not transferable. 12. The applicant agrees to indemnify and hold harmless the VBWD for any and all future liability, causes of action, or claims relating to or arising out of the District’s grant of this permit. Such claims include, but are not limited to, onsite flooding and flooding to neighboring properties. 13. This permit is subject to obtaining all other permits required by governmental agencies having jurisdiction (including an NPDES permit). 14. The VBWD Engineer and Inspector shall be notified at least 3 days prior to commencement of work. 15. Erosion controls shall be installed prior to the commencement of grading operations and must be maintained throughout the construction period until turf is established. Additional erosion controls may be required, as directed by the VBWD Inspector or VBWD Engineer. 16. All disturbed areas shall be vegetated within 7 days of final grading. 17. The applicant is responsible for removal of all temporary erosion-control measures, including silt fence, upon establishment of permanent vegetation at the project site, as determined by the VBWD Engineer and/or Inspector. 18. Valley Branch Watershed District shall be granted drainage easements that cover land adjacent to stormwater management facilities, wetlands, lakes, and lowlands up to their 100-year flood elevations and all ditches, storm sewers, and maintenance access to the stormwater management facilities. Valley Branch Watershed District shall also be granted drainage easements that cover all land used for stormwater management to meet the District’s rules; this includes land irrigated by stormwater, unless the VBWD Attorney approves another mechanism (e.g., Declaration of Covenants) for preserving land irrigated by stormwater. If the VBWD Attorney approves a mechanism other than drainage easements for preserving land irrigated by stormwater, the Managers shall approve of the mechanism prior to execution. 19. The required drainage easements and access easements shall be recorded with the Washington County Recorder’s Office. 20. The minimum floor elevations for all buildable lots in the development shall be recorded in a Declaration of Covenants and Restrictions or on the final plat. 21. Return or allowed expiration of any remaining surety and permit closeout is dependent on the permit holder providing proof that all required documents have been recorded (including but not limited to easements) and providing as-built drawings that show that the project was constructed as approved by the Managers and in conformance with the VBWD Rules and Regulations. 22. This permit becomes invalid if (1) the work is not initiated within 1 year of permit issuance, (2) work is idle for 12 consecutive months, or (3) work is not completed within 3 years of the permit issuance date. Approved: January 26, 2023 President Signature Valley Branch Watershed District Title Note: The grant of this permit in no way purports to permit acts, which may be prohibited by other governmental agencies.