6.a 9. Water ResourcesIX. WATER RESOURCES
A. Water Resource Goals and Policies
Goal: Preserve and protect the quantity and quality of surface water and groundwater.
Policies:
Work cooperatively with all State and Federal agencies to comply with and enforce
regulations and standards such as Shoreland Management Regulations, Erosion and
Sediment Control Standards, Floodplain Regulations, and Stormwater
management.
Identify sensitive groundwater recharge areas and groundwater dependent natural
resources to guide development and land use to minimize potential contamination
and incompatible uses.
Require developers to restore the ability of soils to absorb, retain, and infiltrate
water following site development.
Goal: Improve stormwater management and land stewardship practices.
Policies:
• Provide educational resources and materials to residents and businesses regarding
water quality, stormwater runoff, best management practices, and impaired waters.
• Incorporate low -impact techniques and best management practices on City owned
property.
Goal: Protect the natural and scenic resources of the St. Croix River Corridor, both within and
adjacent to the St. Croix National Scenic Riverway.
Policies:
• Work cooperatively with the National Park Service, Department of Natural
Resources, and Carnelian Marine St. Croix Watershed District and adopt their
Local Water Management Plans.
Goal: Ensure financial and environmental accountability for installation, maintenance,
remediation, and management of any permitted private wastewater system.
Policies:
• In cooperation with Washington County, enforce strict conformance with
regulations for the design, installation, and maintenance of on-site treatment
systems including minimum design, licensing, and installation requirements of the
Minnesota Rules Chapter 7080.
B. Wastewater
1. Forecasts
According the Metropolitan Council population, household, and employment forecasts, the
City of Scandia will have the following sewer demands, as detailed in Table IX -A.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 90
Population,Employment
Forecast Component
2010
2020
2030
2040
Population
Unsewered
3,934
4,260
4,630
4,950
Households
Unsewered
1,498
1,700
1,910
2,100
Employment
Unsewered
519
620
690
730
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 90
2. Existing System
The existing wastewater treatment system is comprised of several on-site septic systems,
two private wastewater treatment systems, and three small public wastewater systems.
a) Private On-site Septic Systems
Wastewater treatment for residents of Scandia consists primarily of on-site septic
systems, shown in Figure IX -A. The city engineer has record of 1,426 on-site septic
systems in Scandia. Responsibility for installation and maintenance of on-site septic
systems lies with the property owner. All systems must be installed and maintained to
meet the standards for individual subsurface sewage treatment systems (ISTS) in
Minnesota Rules Chapter 7080. The City of Scandia has delegated responsibility for
septic inspections to Washington County. Washington County Ordinance 128, Section
17.2, requires owners of septic systems to have tanks pumped at least once every three
years. Many lending institutions request inspections at the point of sale, and these
inspections are recorded with the County. If Washington County becomes aware of
non-compliant systems, the County requires replacement of those systems.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 91
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b) Private Wastewater Systems
(1) The Tii Gavo
The Tii Gavo on Big Marine Lake WWTP facility is located at 2108 Olinda Trail
N, Scandia, Minnesota 55073, Washington County.
The application and plans indicate that the Tii Gavo on Big Marine Lake
development is a 37 residential family home development and community center
located in Washington County. The development will include three-bedroom and
four-bedroom units. The facility has a total wet weather design flow of 13,065
gallons per day. The facility is designed based on a CBODs loading of 21.1 lbs.
per day (0.18 lb. per capita per day), a TSS loading of 23.4 lbs. per day (0.02 lb.
per capita per day), a total nitrogen loading of 3.2 lbs. per day (0.027 lbs. per
capita per day), and a total phosphorus loading of 0.9 lbs. per day (0.008 lbs. per
capita/day).
The facility consists of two 26,250 gallon compartmentalized septic tanks with
effluent filters in the last tank, one 8,438 gallon denitrification tank with carbon
source addition, one 7,500 gallon recirculation tank, one 3,300 square foot
recirculating gravel filter, one 10,000 gallon dosing tank, and six drip dispersal
zones totaling 33,120 square feet of infiltrative surface with an additional 11,040
square feet for reserve drainfield area. This is a Class C facility.
There are no designated bypass points in the treatment system. The permit
authorizes no discharge to surface waters. The facility is further described in
plans and specification on file with the MPCA.
(2) The Wyldewood Acres
The Wyldewood Acres Wastewater Treatment Facility is located at SE'/4 of SE
'/4 of section 15, Township 32 North, Range 20 West, Scandia, Washington
County, Minnesota. This is a Class D facility.
Major components of the Facility include:
27 Individual Grinder Pumps
1 Septic Tank (7,500 gal)
1 Septic Tank (7,500 gal) -compartmentalized
1 Constructed Wetland -subsurface flow (9,000 sq. ft.)
3 Subsurface Mounds (19,718 sq. ft.)
The application and plans indicate that the Facility is designed for 23 three and a
half -bedroom homes and four three-bedroom homes in Scandia.
Each house has an individual grinder pump, which pumps the sewage through a
two inch high-density polyethylene low pressure force main, approximately
4,000 feet in length. Wastewater flows through magnetic influent flow meters
prior to two septic tanks operated in series. Both are 7,500 gallons; the first is un -
compartmentalized and the second has two compartments. The second tank
contains effluent filters. Next, wastewater is processed by one 9,000 square foot
constructed wetland treatment system. A 5,000 gallon dosing tank doses a 19,718
square foot drainfield system (pressurized infiltration chambers), which consists
of three zones with dedicated pumps to alternate usage of the zones.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 93
The Average Wet Weather (AWW) design flow is 8,925 gallons per day (gpd).
The influent five-day Biochemical Oxygen Demand concentration is
approximately 250 milligrams per liter (mg/L), and the Total Suspended Solids
concentration is approximately 250 mg/L.
There are no designated bypass points in the treatment system. The SDS Permit
authorizes no discharge to surface waters.
c) Public Wastewater Treatment Systems
There are three public wastewater treatment systems in Scandia serving multiple lots
and structures, shown in Figure IX -B. The operation, maintenance, and user charges for
these public systems are governed by City of Scandia Ordinance No. 108.
(1) Bliss Sewage Treatment Facility
The Bliss Sewage Treatment Facility's treatment area is located on the western
side of Big Marine Lake, off of Manning Trail North. The facility serves homes
along Manning Trail North from the treatment area north to 191' Street North to
the homes along Langley Avenue North, Layton Avenue North, Lamar Avenue
North, and 185' Street North. It consists of three septic tanks totaling 7,500
gallons, three 15,000 square foot sand filters that are dosed by a lift station, and
three drainfield trench cells (1,200 feet per cell) which are dosed by a second lift
station. Based on drawdown tests performed in the spring of 2017, the two
pumps in LS #3 (dosing the sand filters) have capacities of approximately 300
and 250 gallons per minute, while the pumps in LS #4 (dosing the trench cells)
have capacities of about 110 and 190 gallons per minute. It processes an average
of around 7,000 gallons per day during the winter months and 11,000 during the
wettest summer months but has a permitted capacity of 19,800 gallons per day.
This system has had some issues with high nitrate levels in one of the monitoring
wells surrounding the facility. Currently, treatment options are being considered
to mitigate this issue.
(2) Anderson/Erikson Sewage Treatment Facility
The Anderson/Erikson Sewage Treatment Facility's treatment area is located on
the eastern side of Big Marine Lake at the southern end of Norell Avenue North.
The system serves the homes along Norell Avenue North and those along 188'
Street North to the intersection with Newgate Avenue North. The
Anderson/Erikson Lift Station, which doses the drainfields, had pump capacities
of roughly 65 and 70 gallons per minute based on the 2017 drawdown tests. The
drainfield system itself was originally designed to treat 6,700 gallons per day.
Recent flows indicate that the system is treating slightly less than this amount, on
average, but regularly exceeds this capacity during peak days and months of the
year. Based on this information, the system is at capacity, and any other additions
to it would require further examination to assess the system's capacity and
potential for expansion.
(3) Uptown Wastewater Community Collector System
The Uptown Wastewater Community Collector System's Treatment area is
located on Olinda Trail North, southeast of the village. The system serves Elim
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 94
Lutheran Church and the parsonage, the Scandia Cafe, the Scandia Store, the
Scandia Veterinary Clinic, the Country Messenger, the bank building, Schmitt
Mall, the Community and Senior Center, and the Gammelgarden. The system
was expanded in 1999 for the Community Center and again in 2001 for the
Gammelgarden. In 2012, an equalization tank and an aerobic treatment tank,
complete with blower and air diffuser, were added to the system to treat nitrogen
and phosphorus in the wastewater, and to mitigate peak flows which are higher
than the system's design capacity. The trench drain laterals comprise 2,250 feet
and 6,750 square feet of adsorption area. With the increased treatment provided
by the aeration, the design capacity of the system is approximately 4,050 gallons
per day. The average flow entering the system is 2,025 gallons per day and the
peak flow is about 7,500 gallons per day. Because this system serves venues that
frequently have highly -trafficked events that create high flows (e.g., the church
and community center), it has been determined that the system is essentially at
capacity. While the equalization basin functions to smooth out flow peaks,
addition of another institutional or commercial customer to the system could
prove too much for it and undermine treatment effectiveness. There is room on
the property to double the size of the drainfield. However, if the system is
expanded in the near future, then at some possible point further in the future, if
the drainfield fails due to solids loading of the ground, an entirely new site may
have to be found for construction of a new treatment system. This scenario
should be considered before adding additional customers to the Uptown system.
(4) Extension of Municipal Sewer
This plan identifies a new Rural Center Designation and an expansion of the
Village Neighborhood land use on the west side of Big Marine Lake. These
designations potentially allow greater density of development. In order to
accommodate this, extension of municipal sewer, or improvements to the existing
community system, is necessary. The City and Metropolitan Council staff have
discussed the possibility of extending service from the existing Metropolitan
Council interceptor located in Forest Lake to the west to serve this area of
Scandia. This extension would essentially serve as an "express sewer line" to
Scandia, with few connections within Forest Lake. This option requires
collaboration and an agreement with the City of Forest Lake to identify a route,
and necessary upgrades and future connections. Scandia will work with Forest
Lake to develop the necessary agreements. Until service is extended,
development in the new Village Neighborhood will be limited by capacity of the
existing Bliss system.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 95
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3. Capacity and Maintenance
The Bliss treatment system could still accept some additional flow before it reaches
capacity, around 6,000 gallons per day. However, the high nitrate level issues must be
addressed, either by expanding the system or adding a focused treatment process to remove
nitrate.
The Anderson/Erikson system is essentially at its design capacity, and it should be
evaluated before the addition of any more flow is considered. In general, it operates
nominally under capacity during average flow but above it during peak flows.
The Uptown Wastewater Community Collector System is also essentially at its capacity of
about 4,000 gallons per day. As with the Anderson/Erikson system, during normal flows it
operates below capacity, while during peak flows capacity is surpassed. The city's future
land use plan expands the Village Center area to accommodate residential and commercial
growth. The City of Scandia owns land suitable for mound system expansion, adjacent to
the existing Uptown drainfield system. However, before considering adding more
properties to the collector system or expanding the drainfield, it should be considered that if
the drainfield is expanded, an entirely new location will need to be found for treatment in
the future when the current system reaches the end of its life (via solids loading of the soil).
For all of the systems discussed above, regular maintenance is key. Each of the systems has
numerous of inspection pipes, which allow water levels to be monitored and blockages
cleared in the drainfields. The tops of many of these inspection pipes have been damaged
and/or the caps lost, either by accidental collision while mowing or other causes. This has
the potential to allow dirt and debris into the system, causing blockages and issues, and
these pipes require maintenance and replacement as needed. Additionally, animal
encroachment, specifically gophers, have been noted in the vicinity of the systems. These
should be dealt with regularly, as in their burrowing they can do a great deal of damage to
this type of treatment system.
In general, new development will need to provide for their own wastewater systems. The
reliance on individual systems for future growth and development in the City will influence
development densities and lot sizes.
4. Community and Subsurface Treatment Systems
The City of Scandia's Development Code 13.14.2 states,
"Where lots cannot be connected with a public sewer system, provision must be made for
sanitary sewer facilities consisting of an individual disposal device for each lot. Such
provision shall be in accordance with Chapter Four of the Washington County
Development Code, Subsurface Sewage Treatment Systems Regulations. "
Installation of individual sewage treatment systems into low swampy areas, drainage
swales, floodplains or other areas subject to recurrent flooding is prohibited.
Notwithstanding the foregoing, individual sewage treatment systems in existence may
continue in use if they are repaired and maintained in conformity with the requirements of
existing City and County Ordinances and maybe replaced if normal repairs and
maintenance to the existing system would not reasonably be expected to permit such
system to operate in conformity with the requirements of existing ordinances. Individual
Sewage Treatments Systems shall not be located within utility or drainage easements nor
within dedicated public or private rights -of —way without proper approvals.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 97
Management Area Plan
2. Watershed Management Organizations
Scandia is located in three watershed districts: Carnelian Marine -St. Croix, Comfort Lake -
Forest Lake, and Rice Creek. This section briefly describes the most recent local water
management plan for each of the three watershed districts within the City of Scandia,
followed by a comparison of the goals, objectives and policies of each plan. Management
districts and subwatersheds are also noted. Subwatershed plans provide more geographic
and issue specific management within the larger watershed. Figure IX -C shows the
watershed management organization boundaries within Scandia.
Carnelian Marine -St. Croix Watershed District, Watershed Management Plan, 2015
About 78% of the City of Scandia falls within the CMSCWD, encompassing the eastern
and southern halves of the city. The Carnelian Marine -St. Croix Watershed District's
(CMSCWD) most recent watershed management plan was created in 2011 and was
amended in 2015 to better address invasive species and groundwater quality. The plan
contains the goals, policies and management plans of the CMSCWD and guides the
watershed's activities until 2020. CMSCWD also developed individual lake and stream
plans for all waterbodies in the District.
The plan includes a Focused Watershed Management process based on three levels of
activity:
• Routine Watershed Management for the non -impaired water resources of the
District—these are the basic, day-to-day programs implemented throughout
the District.
• Impaired Watershed Management for water resources that are classified as
impaired waters—includes completion of TMDL studies for impaired
waters and implementation of the recommendations from these studies
• Focused Watershed Management for non -impaired waters—includes efforts
to protect non -impaired waters so they do not become impaired, by
enhancing routine management activities on identified water bodies.
CMSCWD completed a district -wide Wetland Management Plan in July 2010 and amended
the plan in September of 2015. An electronic version of the plan is available on the
District's website. The plan includes a wetland function and value assessment, wetland
management goals, management standards, buffer standards, and identification of Wetland
Preservation Areas within the District.
Based on the functions and values assessment, the plan includes a wetland classification
system with four categories. The categories include:
• High Quality/Highest Priority
• Stream Corridor and Shoreland Wetlands
• Isolated Wetlands
• Utilized Wetlands
Comfort Lake -Forest Lake Watershed District, Watershed Management Plan, 2011
The northwest quadrant of the city falls within the Comfort Lake -Forest Lake Watershed
District (CLFLWD). Drainage from the watershed enters the Sunrise River, a tributary of
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 99
the St. Croix River. The CLFLWD's most recent watershed management plan was created
in 2011 with revisions adopted and approved by the BWSR in August 2015. The plan
contains the goals, objectives, and actions of the CLFLWD and guides the watershed's
activities until 2021.
The CLFLWD plan has eight core goals areas:
• Floodplains
• Lakes
• Streams
• Wetlands
• Uplands Resources
• Groundwater
• Public Education
• Interagency Coordination
Most of Scandia within the CLFLWD falls within the Bone Lake Management District. A
small portion of the city (northwestern most corner) belongs in the Little Comfort Lake
Management District. CLFLWD developed a Total Maximum Daily Load (TMDL) plan
for Bone Lake, discussed below in the section on Impaired Waters. The District completed
a Partially Drained Wetland Assessment in 2014.
Rice Creek Watershed District, Watershed Management Plan, 2010 (amended 2016)
The Rice Creek Watershed District's (RCWD) most recent watershed management plan
was created in 2010. The plan contains the objectives, policies, and management strategies
of the RCWD and guides the watershed's activities until 2001. Only 0.2% of the City of
Scandia falls within the RCWD. This area encompasses all of White Rock Lake and is part
of the Hardwood Creek Planning Region. The primary issues within the Hardwood Creek
Planning Region are related to water levels within Rice Lake, the lack of a well-defined
regulatory floodplain along the Hardwood Creek, and appropriate management methods for
Hardwood Creek and its riparian corridor.
The RCWD's 2010 Watershed Management Plan has eight objectives:
• Increase knowledge, awareness, and capacity for decision-making among
District constituents
• Manage water systems for their ecological and community value while
• Recognize the origin and interconnectedness of water systems while planning
for current and future needs
• Improve diversity and ecological integrity of wetlands
• Minimize damage to infrastructure and property caused by flooding and
excessive runoff
• Capitalize on open space opportunities to enhance water quality, reduce runoff
volume, and enhance ecological resources
• Incorporate groundwater into the decision-making process
• Manage District property and resources responsibly
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 100
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3. Physical Environment and Land Use
Public waters are all water basins and watercourses that meet the criteria set forth in
Minnesota Statutes, § 103.005, subd. 15. Of the many wetlands and water bodies within the
city's boundaries, 40 of them have been classified as public waters in accordance with the
guidelines of the Minnesota Department of Natural Resources.
Public waters within Scandia range in size from 2 acres to nearly 2,000 acres of water
surface and include several water bodies of regional significance. Table IX -B provides
information on all public waters and their acreage. The St. Croix River, a federally
designated National Scenic Riverway, forms the eastern border of the city. Big Marine
Lake, in the southwestern portion of the city, is the second largest lake in Washington
County. Existing and future development in areas surrounding public waters should be
carefully managed and planned to prevent adverse impact on water resources.
OF
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DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 102
Water Body Name
...
Public Water
Inventory ID
Shoreland Management
Classification
Acres
Alice
82-287 P
Natural Environment
26.03
Big Marine
82-052 P
Recreational Development
1902.59
Bone
82-054 P
Recreational Development
218.47
Clear
82-078 W
Natural Environment
35.28
Elwell
82-079 W
Natural Environment
18.86
Falls Creek (Section 1.6.7.12)
Wild and Scenic
-
Fish
82-064 P
Natural Environment
64.99
German
82-056 P
Natural Environment
151.20
Goose
82-059 P
Natural Environment
84.04
Keewahtin
82-080 P
Recreational Development
108.25
Hay
82-065 P
Natural Environment
59.32
Long
82-068 P
Natural Environment
46.12
Nielson
82-055 W
Natural Environment
49.65
Pitzl Pond
82-282 W
Natural Environment
36.19
Rasmussen Pond
82-070 W
Natural Environment
18.24
Sand
82-067 P
Natural Environment
47.41
Sea
82-053 W
Natural Environment
51.67
St. Croix River
82-001 P
Wild and Scenic River
-
Washington
82-169 W
Natural Environment
22.34
White Rock
82-072 P
Natural Environment
80.88
Wojtowicz Pond
82-058 W
Natural Environment
16.8
Unnamed
82-057 W
Natural Environment
27.52
Unnamed
82-060 W
Natural Environment
26.26
Unnamed
82-061 W
Natural Environment
14.37
Unnamed
82-062 W
Natural Environment
17.44
Unnamed
82-066 W
Natural Environment
33.75
Unnamed
82-081 W
Natural Environment
41.29
Unnamed
82-171 W
Natural Environment
14.54
Unnamed
82-172 W
Natural Environment
26.95
Unnamed
82-173 W
Natural Environment
10.49
Unnamed
82-174 W
Natural Environment
26.49
Unnamed
82-210 W
Natural Environment
25.12
Unnamed
82-211 W
Natural Environment
10.84
Unnamed
82-212 W
Natural Environment
17.46
Unnamed
82-213 W
Natural Environment
10.88
Unnamed
82-280 W
Natural Environment
19.48
Unnamed
82-281 W
Natural Environment
7.46
Unnamed
82-283 P
Natural Environment
8.46
Unnamed
82-284 P
Natural Environment
2.08
Unnamed
82-285 P
Natural Environment
14.73
Unnamed
82-286 P
Natural Environment
5.17
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 103
a) National Wetland Inventory
The National Wetlands Inventory (NWI) is a national program sponsored by the US
Fish and Wildlife Service (USFWS). Based on the NWI data, the City of Scandia has
approximately 2,900 acres of wetlands based on the NWI data. Additional wetland
information is summarized in the City's Surface Water Management Plan and the
CMSCWD Wetland Management Plan (2015).
b) Existing and Future Land Use: While Scandia allows for a variety of land uses,
development densities are low to maintain the rural character of the community and to
be compatible with agricultural uses. Residential development densities range from 0.1
to 0.4 units per acre. Commercial, retail, and industrial land uses are guided to be near
existing infrastructure, including water and wastewater services. Likewise, the city
anticipates a majority of residential growth to occur in and around the Village
Neighborhood Zoning District, which is primarily centered around the historical city
center. The Village Neighborhood Zoning District encompasses Goose Lake and
borders the western shore of Big Marine Lake. The expansion of the Village
Neighborhood Zoning District will reduce the amount of land zoned for agriculture or
rural densities (4 units/40 acres). Low densities will be maintained to accommodate
agriculture. Comprehensive land use descriptions can be found in the Land Use section
of the Comprehensive Plan.
4. Existing and Potential Water Resource Related Problems
In 2015, 12 lakes in or partially located in Scandia were monitored as part of the
Metropolitan Council's Citizen -Assisted Monitoring Program (CAMP). In this program,
lakes are sampled every two weeks from mid-April through mid-October. During each
sampling, temperature, dissolved oxygen, and Secchi depth transparency were measured
and recorded. A surface water sample was also collected and analyzed for total phosphorus,
total Kjeldahl nitrogen, and cholorophyll-a. Total phosphorus is a key measure of lake
nutrients, chlorophyll -a is a measure of algae abundance, and Secchi depth transparency is
a measure of water clarity.
The Metropolitan Council uses the monitoring data to assign each lake a water quality
grade using an A through F grading system. The grading system uses percentile ranges for
three water quality indicators -summertime average values for total phosphorous,
chlorophyll -a, and Secchi depth transparency. An overall grade is calculated as the average
grade for the three individual grades. The individual grades given to the lakes can be seen
in Table IX -C. Five of the monitored lakes yielded insufficient information, five were given
a "C" grade, none were given a `B" grade, and two lake received an "A".
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 104
Table IX -C — CAMP
Ratings for Lakes Within Scandia
Lake
Rating
Alice
Insufficient Data
Big Marine
A
Bone
C
Fish
Insufficient Data
German
Insufficient Data
Goose
C
Hay
Insufficient Data
Jellum's Bay
C
Long
B
Sand
C
Keewahtin
A
White Rock
C
Under the federal Clean Water Act (33 U.S.C.) the Minnesota Pollution Control Agency
(MPCA) is required to set standards and assess Minnesota waters for impairments. The
standards are set on a wide range of pollutants, including bacteria, nutrients, turbidity, and
mercury. A water body is listed as impaired by the MPCA if it fails to meet one or more
water quality standards. If a water body is listed as impaired, a Total Maximum Daily Load
(TMDL) must be established for the pollutant, and plans must be created to reduce TMDLs.
Scandia will be required to participate in TMDL plans for impaired water bodies within its
borders. Figure IX -D shows the locations of impaired water bodies in Scandia while Tables
IX -D and IX -E provide detail on specific impairments.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 105
H
L
m
L
m
CL
E
D
X
d
L
3
Vo
ii
oz
JW R
0�
m oii
2
v
C
d
O1
UJ �
L
� Y
Q �
O
U p�
O �
O �
N
@ m
M
ua
V v
LL
c
0 a
Impaired
Bodies
Water Body
Water Body
Nutrients
Invasive Species
PCBs
Mercury
Big Marine
X
Eurasian watermilfoil
X
X
Lake
X
X
Bluegill; northern pike
Hay Lake
X
Eurasian watermilfoil;
Bone Lake
X
Curly -leaf pondweed
Walleye Rearing
Fish Lake
X
X
X
Walleye Rearing
Goose Lake
X
Hay Lake
X
Long Lake
X
Eurasian watermilfoil;
Sea Lake
Curly -leaf pondweed
St. Croix River
X
X
White Rock
La ke
X
Source: Carnelian -Marine Watershed District TMDL Plan, 2011
5. Local Implementation Plan/Program
Implementation of the Scandia Local Water Management Plan will require cooperation
with local Watershed Districts to implement projects within the City that are identified in
the District Plans. The City supports the projects identified in the District Plans and Capital
Improvement Plans that are within Scandia, including the projects listed in Table IX -F.
The CMSCWD plan describes three categories of activities that are included in the
District's Implementation Program: routine watershed management, focused watershed
management, and impaired watershed management. Most of the activities included in these
efforts are implemented by the District. Some are implemented in cooperation with local
landowners and volunteers. Cost -share Program, and identifies several existing or potential
water quality and environmental issues that will be addressed by the program. The District
has ranked the proposed projects on a watershed basis. Many of the projects will be carried
out in cooperation with private landowners.
The CLFLWD's Management Plan includes three categories of implementation activities:
Administration, Programs and Projects. Administration activities are carried out by the
CLFLWD. Programs include development of District rules and permitting activities,
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 107
Table IX -E — Water Bodies Listed.
Water Body
Concerns
Other Considerations
Total Phosphorus
Chlorophyll -a
Secchi
Transparency
Fish Lake
X
X
X
Walleye Rearing
Goose Lake
X
X
Bluegill; northern pike
Hay Lake
X
X
Jellum's Bay
(Bay in Big
Marine Lake)
X
X
Walleye Rearing
Long Lake
X
X
X
Walleye Rearing
Source: Carnelian -Marine Watershed District TMDL Plan, 2011
5. Local Implementation Plan/Program
Implementation of the Scandia Local Water Management Plan will require cooperation
with local Watershed Districts to implement projects within the City that are identified in
the District Plans. The City supports the projects identified in the District Plans and Capital
Improvement Plans that are within Scandia, including the projects listed in Table IX -F.
The CMSCWD plan describes three categories of activities that are included in the
District's Implementation Program: routine watershed management, focused watershed
management, and impaired watershed management. Most of the activities included in these
efforts are implemented by the District. Some are implemented in cooperation with local
landowners and volunteers. Cost -share Program, and identifies several existing or potential
water quality and environmental issues that will be addressed by the program. The District
has ranked the proposed projects on a watershed basis. Many of the projects will be carried
out in cooperation with private landowners.
The CLFLWD's Management Plan includes three categories of implementation activities:
Administration, Programs and Projects. Administration activities are carried out by the
CLFLWD. Programs include development of District rules and permitting activities,
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 107
education and outreach. As noted above, the City concurs with and adopts the District's
Water Management Plan, standards and rules. The CLFLWD Districts will continue to
enforce surface water regulations and permitting within the City, within its geographic area.
A small portion of Scandia is included within the Rice Creek Watershed District the area
around White Rock Lake. The District's Plan includes no implementation projects for the
White Rock Lake area. The City supports the District's efforts to study this lake and
identify potential issues related to water quality and lake management.
i Cost estimates include only stormwater related improvements.
D. Water Supply
1. Local Water Supply Plan
As with wastewater treatment, most residences and businesses in Scandia are served by on-
site drinking water wells installed and maintained by the landowner. There are three
community drinking water wells in the Village Center serving multiple residences and
businesses. In addition, there is a public well serving the Fire Department and Public
Works building. The public well locations are show on Figure IX -E.
Minnesota Rules Chapter 4720 requires the development of Wellhead Protection Plans
(WHPP). Scandia Elementary has worked with the Minnesota Department of Health and
completed Phase I of the WHPP. The City of Scandia may be required to complete WHPPs
for all public water supply systems if required by the Minnesota Department of Health.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 108
Table IX -F — Future Surface Water Improvement Projects
Improvement Cost
Watershed
Project
Estimate'
District
Low
High
205th Street — St. Croix River Bluff Erosion
$15,000
$25,000
Control and Stormwater Quality Project
Neighborhood Small Lot Stormwater
Management Incentive Program in Downtown
$30,000
$50,000
U
Scandia and Lake Neighborhoods
TMDL Study Implementation Projects
TBD —As Constructed
U
Ravine Reconstruction
$60,000
$85,000
Non -Specific Project in its Focused Watersheds,
$40,000/Year for 10 Years
including Sand Lake
Bone Lake TMDL Implementation Plan —
TBD —As Constructed
o
Numerous Projects
Water Quality Studies and Develop Management
J
Plans for Sea Lake, Nielsen Lake and Clear Lake
TBD —As Constructed
U
Stream Assessment of the Bone -Birch -School
Little Comfort Lake Tributary
TBD —As Constructed
RCWD
White Rock Lake (RCWD)
No Projects Planned
i Cost estimates include only stormwater related improvements.
D. Water Supply
1. Local Water Supply Plan
As with wastewater treatment, most residences and businesses in Scandia are served by on-
site drinking water wells installed and maintained by the landowner. There are three
community drinking water wells in the Village Center serving multiple residences and
businesses. In addition, there is a public well serving the Fire Department and Public
Works building. The public well locations are show on Figure IX -E.
Minnesota Rules Chapter 4720 requires the development of Wellhead Protection Plans
(WHPP). Scandia Elementary has worked with the Minnesota Department of Health and
completed Phase I of the WHPP. The City of Scandia may be required to complete WHPPs
for all public water supply systems if required by the Minnesota Department of Health.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 108
IF
v
e
N
d I�1 edw,
O
N
a) Hilltop Water Company
The Hilltop Water Company is a private water system that serves 25 homes and
businesses in the Village Center. The company's service area extends along Olinda
Trail North from Highway 97 to Oakhill Road and along Oakhill Road. The well was
drilled in 1980, and approximately 275 feet deep. The well pump is assumed to have a
design capacity of approximately 50 gpm and two 82 -gallon pressure tanks provide
water storage. Ground elevations in the Hilltop water system are approximately 40 feet
above the City of Scandia facilities. The water system is set to maintain water pressures
between 40-60 psi.
b) Scandia Water Company
The Scandia Water Company is a private water system serving 19 properties along
Olinda Trail North to the North of Highway 97.
c) Uptown Well/Scandia Community Center Well
The Uptown Well is located at the Scandia Senior/Community Center, 14727 209'
Street North. It serves the Senior/Community Center/City Hall and a number of
properties within the village including Elim Church and parsonage, the Gammelgarden,
and the ice rink -warming house. The well was completed in June 1996 and is 463 feet
deep with 70 gallons per minute (gpm) well pump. Four 119 -gallon tanks provide
pressure to the water system when the well is off and provide water storage. The water
system provides water system pressures of approximately 45-70 pounds per square inch
(psi) to the water system as measured at the warming house mechanical room.
In 2011, the City completed a study on a water system connection between the Uptown
Well and Hilltop Water Company system. The recommendation emergency
interconnection between the City and Hilltop water systems includes an approximately
4 -inch water main directly between the two wells. This would provide sufficient
backup water supply for both water systems and the interconnection would meet the
MDH recommendation for backup water supply for the Hilltop Water Company and
would not change existing systems requirements of either water system.
d) New Scandia Fire Hall Well
The New Scandia Fire Hall Well is located to the north of Highway 97 at the
intersection of Ozark Avenue North. The well was completed in May 2000 and is 790
feet deep. The well serves the Fire Department and Public Works, which are both
located in the Fire Hall.
e) Wyldewood Acres
Wyldewood Acres is a private water system designed to serve 23 three -and -a -half
bedroom homes and four three-bedroom homes. The system is owned and operated by
the Wyldewood Acres HOA
2. Assessing and Protecting the Water Source
Scandia is part of the DNR's North and East Metro Groundwater Management Area, shown
in Figure IX -F. A small segment of the city located south of Highway 97 and west of
Manning Ave is also in the Drinking Water Supply Management Area for Minneapolis/St.
Paul. The Minnesota Department of Health has identified a portion of the city for a
DRAFT Scandia 2040 Comprehensive Plan Water Resources
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Moderate to Highly Vulnerable Drinking Water Supply Management Plan; this area is
located south of Highway 97, west of Olinda Trail, and east of Meadowbrook Avenue N.
The city will work with the DNR, Department of Health, and other relevant agencies as
necessary to ensure groundwater within these management areas is protected.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
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Figure IX -F - Water Supply System Interconnections and Management Areas
Municipal Public Water Supply System Interconnections and Management Areas
City of Scandia, Washington County
Chisago Moody Chisago Franconia
city Lake Twp. Twp.
Bone Sea
ear Wel��/
s
Goose
German
ScandI
Ha reecV Farmington
f/ Big Twp.
j/�� Jt9anne
Fish zz
Hay
Rasmus e- Sand
Pond- Lo//
bVhi[e
Marine
,�//.Rock Alice
/Z
For st
La�Irine�'inoo
,
F �B;g j//�����j St'CrOIX Somerset
HUgO'' Manne May'T.Wp. Twp.
w s 0 os i z a a
Miles
® Special Well and Boring Construction Areas (MDH)
The community's most recent local water supply plan reports that the
public water supply system has no interconnections
OIIII� The community's most recent local water supply plan reports that the
®IIIA public water supply system has one or more interconnections
i
North and East Metro Groundwater Management Area (DNR)
Drinking Water Supply Management Area for Minneapolis/St. Paul
Moderate to Highly Vulnerable Drinking Water Supply Management
Areas (MDH)
DRAFT Scandia 2040 Comprehensive Plan
Prepared by: Bolton & Menk, Inc.
County Boundaries
City and Township Boundaries
Open Water Features
NCompass Street Centerlines
Water Resources
Page 112
There are two DNR observation wells located in Scandia, shown in Figure IX -G. Well
195728 is located near the eastern side of Big Marine Lake. This well is showing a
downward trend in annual minimum values, meaning water is being used faster than it is
being replenished. Well 244593 is located north of White Rock Lake. There is insufficient
data at this well to determine a trend in annual minimum values.
Figure IX -G — Ground Level Monitoring Wells
Groundwater Level Monitoring Wells
City of Scandia, Washington County
,
Chi ago�IJ �Chisago L Franconia
s rs l `TW Osceola
City -Lake Twp. P.
School M°0"
School
—_—_—_—_ _—_—_—_ _—'— --lir
Washington—. -
I Bone Sea
Twin I Clear Nielson II I r",
j Wojtowicz 1'
Pond
Cranberry j ti
Goose
I �
,
'Elwell `�
\
l
I German
Forest �
Forest Scandia
Lake -i Farmington
Hailhreed Big 11 Twp.
_ Marine
Fish 1
1 `
Hay 1
244593 Rasmussen t
_
O Pond Sand
1
r
Big Long
t White - Marine 1
I Rock g Alice \
ne',
a O 195728 I
16 M
�
I �
I Pltzf
•.----"---- - --
Jamec Lee Marine on
Big Slough Ii
St . Croix I
Hu O Marine j f Somerset
May Twp.
9 i Y P Twp.
i Long I
0 05 1 2 3 4
Miles
Observation Wells (DNR) County Boundaries
• Showing upward trend in annual minimum values L^_ City and Township Boundaries
OShowing downward trend in annual minimum values NCompass Street Centerlines
• Showing no trend in annual minimum values Open Water Features
OInsufficient data to evaluate a trend 'u^ Rivers and Streams, perennial & intermittent
Minnesota Department of Health aquifer test locations not shown for security reasons.
Please contact the MDH for more information.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 113
The city will also take special consideration of wetlands that receive and discharge
groundwater or recharge aquifers to prevent potential contamination of groundwater
drinking sources, shown in Figure IX -H.
Figure IX -H — Surface Water and Groundwater Interaction
Surface Water and Groundwater Interaction
City of Scandia, Washington County
`Chlsago�, '•Chisago -� Franc ni1.�
City B,r-h Lake Twp. ' , \ �'Twp.x
Moody
Schoo!
_
T i Bora
Clear Nielson J°/'/I •� i
Cranberry I "" • r( 'r ,may - .i^• : �J .t��'•.�i,
Forest
German
!
t
Forest - ,. Scandiat
j w
',Lake
Haifbreed `• P191 L - -;`.
YYY I Manne ♦ :r ' t�
4.'. IL Fish,
i Rasmussen'
y Pond Sand
. ` Big Long
SRo"
MarineA
!t?a rine
Flitzi- -
k '11!0
Pond
�jMarine on
i Big
I - � ti Marine � / St. Croix
HugoMay Twp.l� Somerset
�(
T.P.
yam: Long
Farmington
Twp.
1�
a
Karst Features (DNR) Surface water type (regional screening by Met Council)
A Spring Disconnected from the regional groundwater system
• Sinkhole Recharges aquifers
• Calcareous Fens Receives and discharges groundwater
-' ^ Trout Streams (DNR) S Supported by upwelling groundwater
County Boundaries
City and Township Boundaries
NCompass Street Centerlines
Other Open Water Features
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 114
Sub -Regional Collaboration
The Washington County Groundwater Plan provides a countywide framework for the
protection and conservation of groundwater resources. The current plan was approved in
2014 and guides the protection of groundwater resources in the county until 2024.
The overall goal of the Washington County Groundwater Plan is to protect the economic
and environmental values groundwater provides through coordinated, intergovernmental
efforts in research and assessment, policies, political influence, regulation, education, and
consultation, and technical assistance. The plan has six main goals:
• Concisely outline the physical nature of groundwater resources, discuss the issues
that threaten groundwater, and provide direction and strategies on how to protect
groundwater for future generations
• Provide context and organization for stakeholders and residents to better
understand the complex water governance structure
• Serve as a framework to develop annual work plans for the county and its
stakeholders that give specific implementation actions to address the groundwater
issues in this plan
• Compliment and coordinate with other state, regional, county, and local planning
efforts
• Guide collaboration on groundwater initiatives with state, regional, and local
partners more efficiently and effectively
• Be a resource for stakeholders and residents regarding groundwater information
pertinent to the county.
DRAFT Scandia 2040 Comprehensive Plan Water Resources
Prepared by: Bolton & Menk, Inc. Page 115