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09.c1 Engineering Updates 2-21-2023 City of Scandia Engineering Updates 2/21/2023 Engineering italics = old information · 2022 Street Improvement Project (Melanie Trail N and 238th Street N)  Wear Paving was completed on 9/8 on 238th Street and 9/12 on Melanie Trail N. Shouldering will take place in the afternoon on 9/15 or 9/16 depending on contractor’s schedule. Striping is not yet scheduled.  All punchlist items have been completed apart from a final restoration inspection in spring 2023, and potential pavement maintenance on small portion of Melanie Trail near the southern most crossing culvert if necessary, after inspection. Watershed punchlist items have also been completed.  December pay application to be a part of the next council meeting agenda. This will include full payment of all construction work for the year, while withholding 3% retainage. · Pay application #4 was signed/approved by the city on 12/30/2022 and completes payment for all quantities apart from retainage on this project.  Restoration Punchlist is to be checked in the Spring.  Watershed Punchlist items have been completed and approved by the CLFLWD.  A final pavement inspection will take place in the Spring to determine if corrective action is required on a small portion of Melanie Trail towards the South end.  Final Pay Application will be completed in the Spring once all punchlist items have been completed. · 2023 Street Improvement Project  Wetland delineation has been completed and obtaining permits is currently in progress.  Project limits and scope of work were sent to CMSCWD. An updated plan set was sent to the watershed for comments on Monday, December 5th.  Plans/Specs are in progress and we will review with Public Works on November 22nd to go over state of the project and get the City’s input. Another plan/spec discussion meeting was held with Public Works on December 7th to go over the latest plan set/specs.  City Council approved plans and specifications and authorized ad for bid at the December 20th City Council Meeting.  Washington County ROW permit has been obtained. Only remaining item for this permit is to have the contractor fill out a registration form for Washington County once the project has been awarded.  CMSCWD Permit Application has been submitted for review/approval at the January 11th meeting, this permit has been approved.  Ad for Bid was run in the Finance and Commerce and Country Messenger on December 28th, 2022; and will run a 2nd time on January 18th, 2023.  Plans and Specs were posted to QuestCDN on December 30th, 2022, bid opening was held on January 25th, 9 Total Bids were received for the 2023 Street Improvement Project and potential award will be discussed as a separate business item. · Bliss Drainfield System  Both the 2020 permit application for this system and the “final report” for nitrogen mitigation have been completed and submitted to the MPCA. The memo which serves as a final report doesn’t present final solutions for the nitrogen issue, but instead outlines the issues that have been found and solved in this treatment system, as well as some additional testing that will now be recommended to get a handle on the nitrogen, BOD, and TSS entering and leaving the facility. The hope is to gain us a little more time from the MPCA before they mandate action. We’ll use this time to perform the aforementioned testing and evaluate options for removing nitrogen at Bliss.  City received on February 22, 2021 a Pre-Public Notice Review of Draft Permit - Bliss Collector WWTP (#MN0054119) that also included a statement of basis outlining any changes or new requirements to the draft permit. This 30 day pre-public notice review period starts on February 22, 2021 and ends on March 24, 2021. Once your pre-public notice review is complete the draft SDS permit will be placed on public notice for 60 days. · First thing that needs to be done is complete a Facility Evaluation Report within 180 days of issuance of the new permit they requested. Based on the report, MPCA will then ask the City to follow either Track 1 or Track 2. Track one is the new monitoring well. Track two is a facility upgrade. There are a few other changes to the permit, they include some additional monitoring required over this permit. Also, MPCA is requesting flow monitoring at WS 004, WS 005 and WS 006. These are to each of the infiltration trenches. We are in the pre-public draft notice stage where just the City received these draft documents and can comment. We can review and suggest changes or modifications prior to March 24th. · Current updates: Under track 1, the requirement to abandon GW 008 is included because using this well for monitoring is problematic, since we have no information on the well’s construction nor well boring records. Based on the limited information we do have, it is the opinion of MPCA hydrologist, Steven Stark, that this well is too deep to be used as a monitoring well and may be sampling a confined aquifer. All monitoring wells should be sampling the surficial aquifer and have well screens that bisect the watertable. · The justification for proposed timeline is sufficient and the new timeline will be incorporated into the draft permit. Shown below (last page of this report) is a revised compliance schedule. Flow monitoring requirements at WS 004, WS 005, and WS 006 will become effective upon installation of the flow monitoring equipment. The permit will continue to the 60-day Public Notice period.  The final permit has been issued. The assumption is that we’ll end up on Track 2, with required system improvements due to the nitrate issue. Only thing that needs to take place in the next 6 months (February 28, 2022) is for new flow meters to be installed at the system, something we’ll begin working on. At the one year mark (September 1, 2022), we’ll need to have a Facility Evaluation Report drafted to summarize the system’s ability or inability to meet the nitrate limit.  New flow meters were installed by Public Works at the beginning of 2022 and specific flows to the three drainfield cells is now being monitored. Some additional nitrate testing was also performed in August 2022 to provide additional data points and to get an idea of how much nutrient removal is currently taking place through the sand filters.  As of September 1, 2022, the Facility Evaluation Report has been sent to the MPCA. We await their review, but based on the monitoring well samples taken throughout the last year it appears we’ll be on Track 2, with improvements to the system needed to deal with the nitrate issue. Assuming this is the case, the next step will be to complete a full Facility Plan by August of 2023 which evaluates the facility and its performance as a whole and provides options/recommendations for improvements to be made. This is required by Track 2 but is also the next step in obtaining PFA funding for the project.  We met with MPCA on December 16, 2022 to discuss funding options and laid out a schedule to complete a facility plan and apply for Point Source Implementation Grant (PSIG) funding.  City Council authorized work to complete the facility plan on January 4, 2023. Facility plan to be submitted by March 3, 2023. Also, Council authorized BMI to complete permit documents for permit modification due to added treatment for nitrate removal.  Bolton & Menk currently working on Facility plan and permit modification, documents have been submitted to the MPCA. · Washington County – Manning Ave/CSAH 15 – Sinusiodal Rumble Strips & Striping Project  Washington County has completed their 90% construction plans for the centerline sinusoidal rumble strip (mumble strips) project planned for construction in 2023. Washington County received Highway Safety Improvement Program grant funds for this project. This project includes installing center line sinusoidal rumble strips along County Highway 15 (Manning Ave) from County Highway 12 (75th St) to 240th Street (County line) and new centerline striping. · Floodplain Risk Assessment  The Watershed Board approved applying for the MPCA Small community planning grants for stormwater, wastewater, and community resilience grant last night. Application is due October 18. Grant application was submitted, Watershed District should know the results in about four more weeks, so approximately week of December 5, 2023.  Watershed District has received notification from the MPCA they did not receive the grant that was applied for. · Bliss Addition Stormwater Planning  Watershed Administrator presented summary of input and potential projects to the City Council on August 3, 2022.  Public Engagement Meeting scheduled for August 17, 2022 at 6:00pm at the Scandia Community Center.  Emmons and Olivier Resources (EOR) staff will be out in the neighborhood over the next week staking “rough” BMP locations for utility location marking. EOR staff will continue to collect additional topographic survey between now and when the utility locations are marked.  Watershed District planning a field tour of our draft final proposed locations in October. EOR staff plans to stake the locations of the final proposed water quality practices the week of October 10th and we plan to meet with landowners to review each location on October 13th and 14th. The purpose of these meetings will be to answer questions and make any final changes as we move to 90% plans. Project staking tour with residents completed. Met with City Staff to review draft 60% plans in October. Working toward 90% plans and final agreement in November.  Watershed still working toward 90% plans based on City Staff input received in November 2022.  City has been working on the MOU agreement between the Watershed District and the City.  Watershed/Consultants redesigning some of the project practices after a final utility meet locate identified conflicts. Upon completion of the revised plans, submittal will be prepared to the City for their review. · CLFLWD & Scandia Staff Quarterly Meetings  Meeting held on October 19, 2020.  Meeting on February 9, 2021.  Meeting on May 11, 2021 covered the following topics: · Permitting Update (Nick) · Roadway Projects (Ken) · Bone Lake projects status: SE wetland restorations, NE wetland restoration, agricultural practices (Blayne) · FY22 Clean Water Fund grant award – Moody Lake projects (Emily/Blayne) · Greenway Corridor Planning & Parks Update (Nick) · CMSCWD Management Plan (Mike Isensee) · Regional Update – Highway 243 Osceola Bridge  Project website: http://www.dot.state.mn.us/metro/projects/hwy243osceola/index.html  Three build options continue to be considered for the new bridge. The Wisconsin Department of Transportation (WisDOT) is currently working along with MnDOT conducting an environmental assessment of the choices. The project team is using a three-step process to thoroughly review the options. Step three in the review process is currently underway. The three bridge crossing build alternatives include building on the existing bridge alignment, building the new bridge to the north of the current bridge or building to the south of the existing alignment. During step three, the project team will now closely assess considerations such as geology, trails and road width. They’ll also look at reducing potential impacts to the St. Croix River, the Wilke Glen Cascade Falls area and nearby bluffs. Once step three evaluation is complete, another public meeting will be held to share the results and gather input from the public and regulating agencies on the recommended preferred alternative.  Schedule: Schedule: · Environmental documentation and preliminary design: 2021 through 2023 · Final design: 2023 through 2025 · Anticipated construction: 2026 through 2027  Denise Workcuff Dmitry Tomasevich Communications and Engagement Project manager denise.workcuff@state.mn.us dmitry.tomasevich@state.mn.us 651-775-0025 651-245-4406 · County Roads – Swing-Away Type Mailbox  Every winter, Washington County Public Works get a number of calls from residents whose mailboxes have been damaged by the heavy snow and ice that is forced out by the blade of passing snowplows. Although we are sorry for the inconvenience this damage causes, clearing the entire roadway is essential for public safety.  When a mailbox owner decides to replace their mailbox and post, Washington County recommends a Swing Away type, (standard plate specs shown in link below) which is designed to minimize the risk of damage from plowed snow. The resident’s driveway must be connected to a County Road, if so, contact Washington County Public Works for ordering and payment options. It can be purchased from Washington County and installed for $75.00. A form and payment is required for this work.  https://www.co.washington.mn.us/2178/Swing-Away-Type-Mailbox