5.9 Summary

The following tables summarize the proposed implementation action items and their relationship to the problems and issues identified in section 3.0 above, the metrics by which the District will be evaluating progress toward resolving hose issues and problems, the estimated District cost of implementing those actions, and anticipated implementation schedule.

Table 13.  Problems and issues identified in the Schultz Lake subwatershed and actions proposed to address them.

 

Problem or Issue

Actions in Implementation Plan

Degree of Improvement

Water Quality

The water quality in Schutz Lake scores in the B grade range and nearly meets its TP concentration goal of 40 μg/L. 

  • A phosphorus load reduction plan for Schutz Lake that sets forth actions to maintain or reduce loading to maintain or improve in-lake P concentration goals.  These actions include LGU requirements to reduce phosphorus from existing development, and regulatory requirements to minimize load from new developments.
  • Continue monitoring Schutz Lake to evaluate trends in water quality. 

Implementation of all the actions in the phosphorus load reduction plan would protect existing water quality.

 

Development and redevelopment in the subwatershed will increase nutrient and TSS loads from the watershed as well as increase the volume of stormwater runoff.

Rules will be amended to add a volume management requirement on new development and redevelopment to reduce pollutant transport.

Would depend on ability of developers to incorporate adequate BMPs on their projects and properly maintain them to sustain removal efficiencies.

Water Quantity

The HHPLS identified locations where outlets and culverts require maintenance.

LGUs directed to evaluate these locations as part of their local water management planning.

Completed as LGUs complete their local plans.

Development, redevelopment, and reconstruction in the subwatershed, is predicted to increase volume of stormwater runoff from the watershed as well as increased nutrient and TSS loads. 

Rules will be amended to require a volume management requirement.

Would depend on ability of developers to incorporate adequate BMPs on their projects and properly maintain them to sustain removal efficiencies.

 

Further development in the southern subwatershed could increase volumen and velocity of discharge conveyed by the channel that drains the central part of the subwatershed.

  • Rules will be amended to require a volume management requirement.
  • District will consider a cooperative project with LGU to stabilize channel.

Depends on extent of problem and ability to develop cooperative or collaborative improvements.

The HHPLS predicted that the outlet of the wetland north of the lake would overtop during 100 year or larger events.

LGUs directed to evaluate these locations as part of their local water management planning.

Completed as LGUs complete their local plans.

Wetlands

The subwatershed includes large Preserve classification wetlands that provide a high level of water quality protection to downstream water bodies.

  • Key Conservation Areas identified that include high-value wetlands.  In key areas, LGUs are required to include in their local plans strategies for conserving these values.
  • Rules will be amended to establish management standards based on management classification for impacts to wetlands from development and redevelopment.

 

  • Ongoing effort that is dependant on property owner willingness to pursue conservation and LGU plan completion.
  • Implementation of revised rules would help minimize future impacts to the highest-value wetlands while still providing a measure of protection to those that provide mainly downstream resource protection.

Wetlands with high to moderate restoration potential should be considered for protection and restoration.

  • Several potential wetland restorations are identified for potential collaborative restoration.
  • Wetlands identified as being of high to moderate wetland potential would be managed according to a Manage 1 wetland classification if they have been assessed as a Manage 2 or 3.   This would minimize further degradation that might make future restoration more difficult or costly.

Depends on extent of problem and ability to develop cooperative or collaborative improvements.  This would begin to mitigate wetland losses from past development and help to increase the quantity and quality of wetlands present.

Ecologic Integrity

Wetland and associated upland areas with high ecological value are present and should be conserved and connected to provide wildlife corridors.  An ecological corridor is identified through the central subwatershed.

 

Key Conservation Areas identified that include high-value wetlands.  Some of these areas are identified as District priorities for continued implementation of the Land Conservation Program, and thus the District would proactively look for opportunities to conserve these resources. The Capital Improvement Program includes funds for Land Conservation Activities.   In key areas, LGUs are required to include in their local plans strategies for conserving these values.

Ongoing effort that is dependant on property owner willingness to pursue conservation, District budget and staff capacity, and LGU plan completion.

The Schutz Lake fishery has not been surveyed since 1991.  The survey should be updates to better evaluate the fishery and how it is impacted by water quality.

 

Work cooperatively with the DNR on its fishery management efforts.

Would depend on ability to coordinate and collaborate with the DNR.

No detailed information is available on aquatic vegetation in Schutz Lake.

Plan includes development of an aquatic vegetation management plan.

Completion of this plan would provide a plan for future activities by the District, LGUs, DNR, lake association, and other interested parties.

Groundwater

The FAW concluded that most the large wetlands in the subwatershed were discharge or combination discharge/recharge.  Increased infiltration in the southern subwatershed may be required to help preserve that hydrology as that area develops.

  • Amend rules to require infiltration or abstraction of the first one inch of rainfall on new permitted development and redevelopment.
  • Identify a network of surficial aquifer monitoring wells across the watershed, monitor groundwater levels and quality.
  • Promote Better Site Design (Low Impact Development) principles for new development that mimic predevelopment hydrologic regime.

 

Infiltration on site will assist in preventing further modification of surficial groundwater recharge and help to maintain wetland hydrologic regimes.

 

There is a high aquifer sensitivity area in the northern subwatershed where any stormwater should be pretreated prior to discharge.

  • Amend rules to require pretreatment of stormwater discharged to wetlands or infiltration areas in the areas of high aquifer sensitivity.
  • Establish a new District rule that requires an additional level of analysis and review of permitted development and redevelopment where there is a potential for development to adversely impact groundwater connected to a surface water feature.

Will help minimize future impacts to groundwater and provide for proactive management rather than reactive

Stormwater management should be coordinated with wellhead protection plans.

 

Stormwater and groundwater management within those areas will be coordinated with wellhead protection plans.

Will help minimize future impacts to drinking water and provide for proactive management rather than reactive

Table 14.  Summary of metrics to be used in evaluating progress toward Schultz Lake subwatershed goals.

Objective

Metric

Existing

Desired

Location

Water Quality

Phosphorus Loading (lbs annually)

350 (Ultimate)

226

Schutz Lake

Water Quantity

Volume Reduction Acre-feet

-

67

Watershed-wide

1.5 year discharge

28.3

28.3

Watershed-wide

100 year discharge

42.3

42.3

Watershed-wide

Ecologic Integrity

Key Conservation Areas conserved (acres)

 

3

Watershed-wide

Wetlands

Wetland Acreage

238.4

238.4 or greater

Watershed-wide

54.5

54.5 or greater

Preserve

2.1

2.1 or greater

Manage 1

60.4

60.4 or greater

Manage 2

20.5

20.5 or greater

Manage 3

Table 15.  Summary of Schutz Lake subwatershed implementation program.

Item

Description

Estimated Cost

Schedule

Section 3.0

MCWD Capital Projects

1

Wet detention pond

$1,128,600

2014

3.1.1, 3.1.2, 3.2.2, 3.2.3, 3.3.2, 3.4.1

2

Corridor wetland restoration

$357,200

2011

3.1.2, 3.3.2, 3.4.1,

3

Regional infiltration

$123,700

2016

3.1.1, 3.1.2, 3.2.2, 3.2.3, 3.4.1, 3.5.1

$134,100

2014

$51,800

2014

MCWD Data Acquisition/Study

1

Aquatic and shoreline vegetation survey and management plan

$10,000

$7,000 update

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.4.2, 3.4.3

2

Identify keystone, umbrella, and indicator species, evaluate habitat, and develop conservation strategies

Part of watershed-wide study

2010 and ongoing

3.3.1, 3.3.2, 3.4.1, 3.4.2, 3.4.3

3

Inventory and prioritize erosion problems

Part of watershed-wide study

Part of ongoing watershed-wide program

3.1.2, 3.2.1, 3.2.2, 3.2.3

MCWD Land Conservation Program

1

Undertake land conservation efforts in accordance with Figure 19

$24,000

Part of ongoing watershed-wide program

3.3.1, 3.3.2, 3.4.1, 3.5.1

MCWD Regulatory Program

1

Amend District Rules to increase stormwater runoff requirements for new development and redevelopment

Part of watershed-wide effort

2007-2009

3.1.1, 3.1.2, 3.2.2

2

Amend District Rules to require abstraction of 1” of rainfall  on new development and redevelopment

Part of watershed-wide effort

2007-2009

3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.3.1, 3.5.1 – 3.5.3

3

Amend District Rules to adopt wetland management rules based on wetland management classification

Part of watershed-wide effort

2007-2009

3.3.1, 3.3.2, 3.4.1, 3.5.1, 3.5.2

MCWD Hydrodata Program

1

Monitor Schutz Lake

Part of watershed-wide hydrologic data program

Part of ongoing watershed-wide program

 

3.1.1, 3.1.2, 3.2.2, 3.2.3

2

Identify shallow wells to monitor groundwater levels

Part of watershed-wide study

2008 and ongoing

3.2.2, 3.3.1, 3.3.2, 3.4.1, 3.5.1

MCWD Education/Communication Program

1

Provide targeted education materials to key stakeholder groups to meet objectives of plan

Part of watershed-wide education program

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.2, 3.2.3, 3.3.1, 3.4.1, 3.5.1, 3.5.2

2

Provide workshops, seminars, and brown bags for LGU staff, developers, and other interested parties

Part of watershed-wide education program

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.3.1, 3.3.2, 3.4.1, 3.5.1, 3.5.2, 3.5.3

3

Develop and distribute model ordinances and design standards that incorporate low impact design principles

Part of watershed-wide education program

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.2, 3.2.3, 3.3.1, 3.3.2, 3.4.1, 3.5.1, 3.5.2, 3.5.3

4

Promote the development of a Schutz Lake Association

Part of watershed-wide education program

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.2, 3.2.3, 3.3.1, 3.4.1, 3.4.2, 3.4.3

5

Recruit and train volunteers to monitor vegetation in Schutz Lake

Part of watershed-wide education program

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.2, 3.4.2, 3.4.3

6

Develop a small grant program to provide financial assistance to property owners desiring to implement BMPs on their property or to install demonstration projects on public property

Part of ongoing watershed-wide program

2008 and ongoing

3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.3.1, 3.5.1 – 3.5.3

MCWD Operations and Maintenance

1

Inspect channels every five years

Ongoing activity

Part of ongoing watershed-wide program

3.1.1, 3.1.2, 3.2.1, 3.2.2, 3.2.3

2

Maintain detention pond to sustain removal efficiency in accordance with cooperative agreement

Incorporate into life-cycle cost of project

Part of ongoing watershed-wide program

3.1.1, 3.1.2

Collaborative Projects

 

None identified.