City Detail

Background Information

City of Lakeville
County: Dakota
Population: 63748
GreenStep City category: A
Full-time equivalent city staff (approx.): 202
Participating township, county, school:

GreenStep Coordinator

Neil Normandin
City Staff
952-985-2705
City web page relating to sustainability/GreenStep activities:
GreenStep City resolution: Click here to view the file.
GreenStep City status and date: STEP 1 ( )

City Assessment Files and City Performance Metrics

City councils pass a resolution to join the GreenStep program and are recognized at Step 1. Step 2 and Step 3 recognition levels reflect completed city actions, reported and rated below with stars (1 star = good, 2 stars = better, 3 stars = best). The Assessment File below summarizes completed city actions in a short Word file. Step 4 recognition is awarded to cities who report a minimum number of core metrics for the previous calendar year. These metrics aim to show the aggregate, quantitative results of taking multiple GreenStep actions. Step 5 cities show improvement in the Step 4 metrics. See yearly data for Steps 4&5. Additional city data can be found by reviewing information on B3 Benchmarking and Regional Indicators Initiative.

Assessment File

Best Practice Actions Underway and Completed

Completed actions are denoted by stars.

Total completed actions: 16
1 star actions: 3
3 star actions: 5

Buildings and Lighting Buildings and Lighting

Efficient Existing Public Buildings {BP no.1}

3 star - Action 1:

Enter building information into the Minnesota B3 Benchmarking database and routinely enter monthly energy, water use data for all city-owned buildings.

Date action report first entered:
Date of last report update:
Implementation details:
Lakeville has been entering data into the Minnesota B3 Benchmarking website monthly since 2010 with historical data going back to 2007. Trends for each building are reviewed periodically to gauge energy performance and look for ways to improve efficiency.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
3 star - Action 2:

Make no/low cost indoor lighting and operational changes in city-owned/school buildings to reduce energy costs.

Date action report first entered:
Date of last report update:
Implementation details:
The City completed updates to its building automation software in 2018 and centrally controls the HVAC temperature, setbacks, and mechanical settings in 12 buildings. Janitorial staff was changed to daytime hours in 2016. Filter changes on air handling units are performed four times per year by both City and contractor staff to improve performance. A high-efficiency condensing boiler was installed in 2017. LED lighting retrofits are completed annually within City facilities as fluorescent tubes and fixtures need replacement. Occupancy sensors for high bay fluorescent light were installed in the Central Maintenance Facility truck garage in 2005 with the construction of the building and are monitored and adjusted as needed to maintain efficiency.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
3 star - Action 3:

Invest in larger energy efficiency projects through performance contracting or other funding or through smaller retro-commissioning/retrofit projects in city-owned/school buildings.

Date action report first entered:
Date of last report update:
Implementation details:
The City has completed a study with Apex Efficiency Solutions that reviewed each of the City's facilities for energy savings, operations and maintenance savings, and potential incentives available from the utilities. With lighting upgrades, HVAC improvements, and building envelope improvements, potential savings total over $161,000.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Efficient Existing Private Buildings {BP no.2}

3 star - Action 1:

Create or participate in a marketing/outreach/incentive program to promote/achieve residential energy/water use reduction and energy efficiency.

Date action report first entered:
Date of last report update:
Implementation details:
In 2018, the City began an initiative to reduce urban water usage by optimizing private irrigation system efficiency. Irrigation audits were conducted at two homeowners associations to review system components (controllers, sprinkler heads, rain sensing technology), scheduling practices, and uniformity of water application. The audits provided the HOAs with a list of items that could be implemented to keep more water within local groundwater aquifers, reduce the potential for pollutants to enter local creeks and lakes, and save on annual irrigation costs.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
1 star - Action 5:

Conserve/protect drinking/groundwater resources by creating a water-wise landscaping ordinance/guidance, WaterSense purchasing program, or guidance on rainwater harvesting and home water softener use.

Date action report first entered:
Date of last report update:
Implementation details:
In 2007, the City adopted a water use ordinance specifically to address residential lawn watering and irrigation practices. Impacts to the City's water system were felt particularly during hot summers water levels in the aquifer drew down and it was harder to pump water to replenish storage tanks. The ordinance specifically restricted customers to odd or even day watering and prohibited watering between 11:00 a.m. and 5:00 p.m. daily. Exceptions were allowed to hand watering of gardens and the establishment of new sod.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Efficient Outdoor Lighting and Signals {BP no.4}

Pending - Action 1:

Require energy efficient, Dark-Sky compliant new or replacement outdoor lighting fixtures on city-owned/private buildings and facilities.

Date action report first entered:
Date of last report update:
Implementation details:
Existing City ordinance requires that new street lights, building exterior lights, and parking lot lights for City-owned and private buildings an facilities be dark sky compliant.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Pending - Action 5:

Use LED/solar-powered lighting for a flashing sign or in a street, parking lot or park project.

Date action report first entered:
Date of last report update:
Implementation details:
The City uses both solar-powered lights and LEDs for driver feedback signs that display vehicle speeds as part of traffic calming measures. Permanent driver feedback signs are used high traffic residential areas and moveable signs are used throughout the City to reinforce speed limits, to highlight speed zone changes, and to focus driver attention on speed zones during street construction detours. The City also uses solar-powered LEDs at school zone and park pedestrian crossings to highlight the crossing when active.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Pending - Action 6:

Relamp/improve exterior building lighting for city-owned buildings/facilities with energy efficient, Dark-Sky compliant lighting.

Date action report first entered:
Date of last report update:
Implementation details:
Since 2011, the City has relamped three parking lots at City facilities with Dark Sky compliant LED lighting. Any interim replacements for wall packs and bollard lighting at facilities are Dark Sky compliant LED. The City as a plan for the relamping of exterior lighting at all City facilities with LED beginning in 2019.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Environmental Management Environmental Management

Urban Forests and Soils {BP no.16}

1 star - Action 1:

Certify as a Tree City USA.

Date action report first entered:
Date of last report update:
Implementation details:
The City of Lakeville is currently certified as a Tree City USA and has been a Tree City for 25 years.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
3 star - Action 5:

Adopt a tree preservation or native landscaping ordinance.

Date action report first entered:
Date of last report update:
Implementation details:
The City has adopted a tree preservation ordinance that requires owners/developers to prepare a tree preservation plan for each graded lot. The plan must be certified by a licensed forester or landscape architect. Trees that are identified in the plan that were destroyed or damaged must be replaced with two replacement trees from nursery stock of a specified height and diameter.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Stormwater Management {BP no.17}

1 star - Action 5:

Adopt and implement guidelines or design standards/incentives for at least one of the following stormwater infiltration/reuse practices:

Date action report first entered:
Date of last report update:
Implementation details:
The City has adopted design standards for rain gardens/infiltration practices through a standard specification included in the City's specification book. The City hosts two design workshops per year with the Dakota County Soil and Water Conservation District for residents to learn about the installation of rain gardens.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Surface Water {BP no.19}

Pending - Action 3:

Adopt and report on measurable, publicly announced surface water improvement targets for water bodies, including the percent of lake, river, wetland and ditch shoreline with at least a 50-foot vegetation buffer.

Date action report first entered:
Date of last report update:
Implementation details:
The City of Lakeville works closely with its neighboring cities and with both the Black Dog Water Management Organization and the Vermillion River Watershed Joint Powers Organization on surface water management issues and solutions.
In Lakeville, a 21-year involvement in the Citizen Assisted Monitoring Program allows the City monitor six lakes, Marion, Orchard, Kingsley, Valley, and East, on a bi-weekly basis to track water quality trends. Samples collected by local residents and staff are analyzed for various indicators of algae growth potential; surface water temperature and water transparency are also observed. This information provides the City with water quality data to use in properly managing surface water resources and serves to document water quality impacts and trends. Grades assigned by the Metropolitan Council are reported to the City annually.
The City also conducts annual studies on Marion, Lee, Orchard, and Valley lakes to monitor water quality, aquatic plants, and fish communities. The results are published annually to increase awareness of plant species and allow for a faster response to aquatic invasive species. Water reuse ponds a King Park are also included in this monitoring for chlorides, phosphorous, and bacteria to ensure that the water used in playing field irrigation does not harm aquatic organisms, promote algae growth, or adversely affect the recreational use of the park.
The City has also sponsored the Wetland Health and Evaluation Program since 2002 to provide educational opportunities and training for residents to collect data by using bio-indicators to evaluate wetlands throughout the City.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Pending - Action 4:

Adopt a shoreland ordinance for all river and lake shoreland areas; reduce flooding and costs through The National Flood Insurance Program's Community Rating System.

Date action report first entered:
Date of last report update:
Implementation details:
The City adopted a shoreland ordinance in 2010 to manage the effect of shoreland and water surface crowding, to prevent pollution of surface and groundwater in and around the City, to provide ample space for subsurface sewage treatment systems, jto minimize flood damage, and to maintain the natural charistics of shorelands and adjacent water areas.
Outcome measures/metrics:
Descriptive File: view file
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705

Efficient Water and Wastewater Systems {BP no.20}

Pending - Action 1:

Compare the energy use and financial performance of your facilities with other peer plants using standardized, free tools.

Date action report first entered:
Date of last report update:
Implementation details:
The City has entered energy use data into B3 Benchmarking for purposes of monitoring and managing energy use and for comparison with peer water production facilities. Energy use in a water treatment plant varies with weather and can be significantly affected by drought years. However, the treatment facility has invested in variable frequency drives on its high service pumps and has been able to reduce pump use to one pump for the majority of its needs. This has produced a saving in demand charges when starting up additional pumps to meet daily demand.
Outcome measures/metrics:
In comparing kWh per 1000 gallons in 2008 with 2016 there was a 7 percent decrease in energy consumption. During both years, the facility pumped 2.43 billion gallons and saw an approximate increase in electric rates of 15 percent over the intervening 8 years. The treatment facility is on a peak shaving program with Dakota Electric Association and receives a reduced commercial electrical rate.
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Pending - Action 2:

Plan and budget for motor maintenance and upgrades so as to assure the most energy efficient, durable and appropriate equipment is available when upgrades or break downs occur.

Date action report first entered:
Date of last report update:
Implementation details:
The City has been active for the past 20 years in executing a rehabilitation program for each of is production wells. In addition, staff monitor the wells on a weekly basis for proper operation and to look for signs that the motor and pump are operating inefficiently. Indications of inefficient operation prompt immediate action and that well is taken offline and further evaluated for rehabilitation. Out of cycle rehabilitations are accomplished by delaying a well or another capital project scheduled in that fiscal year. Vertical turbine pumps are scheduled for rehabilitation every 8 years and wells with submersible pumps scheduled for rehabilitation every 10 years. One standby well is scheduled for rehabilitation every 13 years based on its infrequent use. A typical well rehabilitation removes the downhole pipe and the motor and pump. The motor and pump are evaluated and either sent away for refurbishment or replaced. The well is televised and any accumulated sand is removed to eliminate the potential for damage to the pump components.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705
Pending - Action 3:

Establish an on-going budget and program for decreasing inflow and infiltration into sewer lines and losses in drinking water systems.

Date action report first entered:
Date of last report update:
Implementation details:
The City has been active for the past 12 years in budgeting and executing a program for addressing inflow and infiltration within the sanitary sewer system. Initial efforts focused on televising and lining specific segments of pipe and sealing manhole structures that indicated the potential for, or were active in, allowing groundwater infiltration. As part of its inflow and infiltration mitigation efforts, flow meters were placed in areas considered most likely to produce higher sewer flows. Evaluation of collected data has allowed the City to televise and inspect specific sewer lines to monitor for both inflow and infiltration. In instances were inflow is suspected, the City approached the property owner to educate them on proper hookups for sump pumps and rain leaders. Subsequent years have seen a steady increase in the City's budget for inflow and infiltration mitigation and larger-scale projects to address issues throughout the City rather than being limited to a single area in any given year. Additional emphasis has also been placed on complete manhole sealing or rehabilitation to ensure that the structures do not contribute to the problem. The City also purchased a sewer camera truck to aid in the monitoring and management of the sanitary sewer system. The City is a participant in MCES grants for projects to mitigate inflow and infiltrations.
Outcome measures/metrics:
Descriptive File:
For more information contact:
Neil Normandin (City staff) | nnormandin@lakevillemn.gov | 952-985-2705