Stormwater Management Task Force
Regular MeetingSpringfield, MO · October 25, 2012
Minutes
Springfield/Greene County, Missouri
Stormwater Management Task Force Meeting #1
Meeting Notes
October 25, 2012
Welcome & Introductions
The Springfield/Greene County, Missouri Stormwater Management Task Force met in the C.W. Titus
Education Facility at the Watershed Center. The meeting commenced at 5:00 p.m.
Greg Burris, City Manager and Tim Smith, County Administrator welcomed the Task Force members and
community members in attendance. Those present included the following.
Task Force
Stacey Armstrong Patty Hamilton Dave Murray
Matt Bailey Patrick Harrington Fred Palmerton
Bill Bretall Casey Haynes Brian Perdue
Geoffrey Butler Ronda Headland Matthew Pierson
Chris Carson Andy Hosmer Rick Scarlet
King Coltrin Dan Hoy Karen Spence
Eric Dove Jerany Jackson Aaron Wahlquist
Dana Elwell Tom Kissee
Tiffany Frey Chris Macioce
Absent: Daniel Beckman, Tom DeWitt, Erik Fjeseth, Harlan Hill, Fred Schlegel
City and County Staff
Kevin Barnes Tim Davis Steve Meyer
Vanessa Brandon Carrie Lamb Cora Scott
Phil Broyles Barbara Lucks Tim Smith
Greg Burris Cody Marshall Todd Wagner
Chris Coulter Fred Marty
Sarah Davis
Community Stakeholders:
David Casaletto
Milton Dickensheet
Mike Pessina
Sheila Shockey introduced herself and explained the Task Force purpose, ground rules and described the
agenda for the meeting. She introduced the two co‐chairs, Dan Hoy and Fred Palmerton. They introduced
themselves and then each Task Force member and attendee introduced themselves. Sheila walked the
group through the notebooks prepared for each Task Force member. She asked them to bring them to
each meeting and include the information emailed out in advance of each meeting.
Presentation Defining Stormwater Management
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Carrie Lamb made a presentation describing what stormwater is, its potential impacts, and how it can be
managed to minimize these impacts. She explained that the more impervious or hard surfaces a
community has, that more stormwater runoff is generated. Stormwater doesn’t soak in or evaporate as
much as it did before the hard surfaces were installed. Springfield’s watersheds are covered with about 25
to 35% impervious surface area. She said Springfield is at the top of two watersheds. Carrie described how
impervious cover influences the flows in streams during dry weather (reduces the amount of inflow from
ground water or subsurface seeps since less has infiltrated), increases flood flows, negatively impacts fish
and critters in the streams and causes stream bank erosion. She talked about common pollutants including
lawn fertilizer, litter, and motor oil, and how stormwater runoff carries these pollutants into streams. The
potential impacts of poor stormwater management include: public health and safety, property damage,
devaluation of property and neighborhoods, degradation of waterways, and negative impacts to the
regional economy from fishing, recreation, and tourism. Good stormwater management includes: minimize
flood impacts; maintain infrastructure; attractive, multi-purpose spaces; floodplain/riparian corridor
protection; water quality and habitat protection; regulatory compliance; and improved quality of life and
economic development.
Carrie showed a map of the infrastructure Springfield needs to maintain. The City of Springfield has over
600 miles of stormwater conveyance and over 15,000 inlets. The total with Greene County is more than
800 miles of conveyance structures and more than 20,000 inlet structures. She described a typical
stormwater system and showed examples of the infrastructure and explained their purpose. She said that
this system manages the quantity of stormwater. In addition, infrastructure can be designed to also improve
water quality. This is a shift in how stormwater is managed. The goal is to achieve multiple benefits and
create amenities with investments. She showed examples of how this has been done in Springfield and
Greene County. She described how the impacts of development is being minimized using Best
Management Practices (BMPs). She showed several photos of the BMPs in the community.
Presentation on Past Funding
Sheila gave a brief overview of past funding sources and levels for the stormwater management
program for both the City and for the County. These funding sources have included the following.
• Level Property Tax • Capital Improvements Sales Tax
• Detention Buy‐out or In‐lieu • General Obligation Bonds
payments
• General Fund
• Parks and Stormwater Sales Tax
• Federal and State Grants
For the City of Springfield, total revenue generated for the stormwater management program was $90.6
million for the years 1995 to 2012. In Greene County, the total revenue generated for the years 2000 to
2013 was $9.9 million. Charts were displayed to provide a visual picture of the revenue sources in the
past.
Presentation on Past Accomplishments
Todd Wagner explained the three areas of stormwater management: flood risk and damage reduction,
water quality protection, and maintenance infrastructure investment. This part of the Task Force meeting
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will describe what has been done in the past in these three program focus areas in the City. Kevin Barnes
will talk about what has been done in the County. Todd described what was accomplished with the
investments made.
• Voluntary flood buyout program: >$10M
• Flood reduction projects: $70M
• Stormwater Permit Compliance: >$400k annually.
• Water quality improvements projects ‐Stormwater Best Management Practices (BMPs)
• Infrastructure repairs: minimal, some projects are replacement of old infrastructure
• Public Education and Outreach
The voluntary flood buyout program accomplishments include the following.
• Stopping the cycle of repeated flooding of individual homes or entire neighborhoods, which leads to
lower property values and dilapidated properties.
• Over $10 million has been spent since 1994.
• Over 200 acres have been acquired, mostly in or adjacent to floodplains.
• Nearly 200 individual parcel acquisitions are included in this program.
• Approximately 150 structures have been removed from flood prone areas.
• The City program was matched by approximately $750,000 in FEMA funds.
He said that the floodplain acquisition program was important to the greenway trail system development.
Todd showed a map to illustrate this point. He said about 211 acres were acquired for approximately
$2.5 million. Todd described the details behind historic floods and the changes made through the flood
acquisition program.
Kevin Barnes gave the history of investments made in stormwater management in Greene County. He
described the historic floods and impacts on properties and public safety in the County. He gave an
overview of major projects completed by the County.
Carrie gave an overview of regulatory issues and how the City and County comply with the Clean Water
Act through their Municipal Separate Storm Sewer System (MS4) permits. A portion of the resources the
City and County have expended are to comply with regulatory requirements including the following
activities: development review process, land disturbance permit program, municipal operations good
housekeeping, illicit discharge/industrial runoff, public education and involvement, and water quality
monitoring. Clean Water Act requirements are fulfilled through local policies, programs, ordinances,
permits, inspections, and standard operating procedures. Select examples described during the Task Force
meeting include the following.
• Land disturbance permits are issued by both the City and County for construction where 1 acre or
greater of land is disturbed. The property owner must provide erosion and sediment control per
City and County ordinances to minimize runoff of sediment and other pollutants from the
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construction site. City and County staff periodically inspect the erosion control practices for
compliance. Training is provided to contractors so they understand the state and local regulatory
requirements, inspections, and enforcement for noncompliance.
• The City and County have programs for investigating illicit discharges (dumping or discharging
pollution to the stormwater system), sweeping public streets, and proper handling of materials and
waste in municipal operations and maintenance (good housekeeping).
• The City and County have partnered with several community groups and non‐profits to carry out
public education and involvement programs. These programs include storm drain inlet marking and
murals, Adopt‐a‐Stream cleanup activities, and workshops on rain barrels and rain gardens.
Presentation on Current and Future Needs
Todd Wagner gave an overview of the current and future stormwater management needs. He showed a
map of the service requests for the City of Springfield that total about 3,000 addresses. He explained the
needs are estimated to be two‐to three‐times the number of calls made to the City. One need the City has
is to comply with state and federal regulations for water quality. This can also mean cleaning and
maintaining the system properly. Another issue is infrastructure maintenance. A third issue Springfield is
facing is channel stabilization and erosion control, which include utility protection. Todd said the unfunded
needs to address flooding issues are approximately $700 million.
Of course, all of these cannot be addressed; between $100 million to $200 million are priority needs. Todd
explained that the City and County haven’t had the resources to reinvest in the stormwater system. The
cost to gradually replace the system overtime would be $5 million per year for the City. To stay in
compliance with stormwater regulations the City currently spends about $500,000 and the County spends
$300,000. More regulations will be imposed upon both the City and the County in the next permit cycle
beginning in June 2013. For the City, the cost could be as much as $1 million annually.
Questions and Answers
Task Force members asked questions and the following answers were given by the support team:
Question: Does the limestone under the soil impact how we manage stormwater?
Response: Yes, our community has karst topography which means we have sinkholes, caves and
underground streams. Because sinkholes are a direct connection to groundwater, we need to be
careful about keeping pollution out of them. Karst topography also limits our ability to use stormwater
best management practices that are designed to allow large quantities of runoff to soak into the
ground in a small area because this can cause a sinkhole collapse.
Question: Is the City measuring the quality of water being discharged from the stormwater system?
Response: Yes, Springfield has had a stream sampling program for 10 years and has good baseline
data. The County has a similar program for stream sampling.
Question: What is the population of the City and the County?
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Response: The population of the City is 160,000 and the County (including the City) is 275,000.
Question: Do you know how many more properties will need to be bought out?
Response (Todd Wagner): The City has a list of properties in the FEMA floodplain and has a list of
properties that are flood‐prone. We can provide a total and general location to the Task Force at a
future meeting.
Question: Do we have better ordinances and practices in place so we don’t cause these problems in
the future?
Response: As our knowledge has evolved, we have changed the way we manage stormwater.
Springfield and Greene County have in place ordinances and development review procedures that
require developments to meet certain standards to minimize potential flood impacts and protect water
quality. These techniques are evolving but the goal is to better manage water quantity and quality as
we development.
Question: How does pervious concrete hold up?
Response: It is primarily used on the outside lanes of streets and parking lots. Techniques and
practices are evolving and many of the design professional on the Task Force have good experience
implementing pervious concrete.
Question: How does Springfield stack up against others in the country in terms of stormwater
management practices?
Response: Are we doing all the right things? We can share with you best practices at a future meeting
and how our community compares.
Next Steps and Closing Remarks
Sheila asked the task force about time of day for the meetings. Most participants felt like the current time
worked. One participant said he would like to see it at 5:30 p.m. since he works until 5 p.m. The Task
Force also reviewed the dates proposed for future meetings and agreed to meet at the New Public Safety
Center for future meetings.
Dan Hoy and Fred Palmerton made closing comments as co‐chairs of the Task Force. Dan Hoy said we
need to think about how we can care for the quality of our waterways. Fred Palmerton encouraged
members to prepare for the meetings, give some thoughts to the questions at hand and share your
ideas and experiences, and let’s focus on the task force questions.
The meeting was adjourned at 7:11 p.m.
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Packet
City of Springfield - Greene County, Missouri
Stormwater Management Task Force Meeting
Date: Thursday, October 25, 2012
5:00 to 7:00 p.m.
Location: Watershed Center
Map to meeting
2450 E. Valley Water Mill Road site on page 2
Springfield, Missouri 65803
Meeting purposes:
Orient Task Force members regarding their role, process, and issues to be addressed.
Provide background on:
o What is stormwater management and why is it important to our community?
o How did we fund the stormwater management programs in the past?
o What was accomplished with the investment made?
o What are the current and future needs?
AGENDA
5:00 p.m. Welcome & Introductions Greg Burris, City of Springfield
Tim Smith, Greene County
5:10 p.m. Task Force Orientation Sheila Shockey, Shockey Consulting
5:20 p.m. What is stormwater management? Carrie Lamb, City of Springfield
5:45 p.m. How was stormwater management funded in the past? Sheila Shockey
5:55 p.m. What was accomplished with the investments made? Kevin Barnes, Greene County
6:15 p.m. What are the current and future needs? Todd Wagner, City of Springfield
6:50 p.m. Next steps Sheila Shockey
6:55 p.m. Closing Remarks Co-Chair Fred Palmerton
Co-Chair Dan Hoy
7:00 p.m. Adjourn
In accordance with ADA guidelines, if you need special accommodations when attending any City meeting, please
notify the City Clerk's office at 864-1443 at least three days prior to the scheduled meeting.
Stormwater Management Task Force Page 1/29 Oct. 25, 2012
Agenda Packet
Handouts:
1. Task Force Guide for Members pages 3-6
2. Stormwater Management 101 pages 7-27
3. Recorded Subdivisions Southwest Greene County by Decade page 28
4. Stormwater Projects Map page 29
Meeting Site:
Watershed Center
2450 E. Valley Water Mill Road
Springfield, MO 65802
For assistance call (417) 864-1901 or (417) 818-6091
Directions:
Go north of I-44 on Glenstone to Valley Water Mill Road. Turn right onto Valley Water Mill Road. Travel east to the
"T" at Barnes Avenue and turn left. Go north on Barnes Avenue and turn right onto Farm Road 102, next to Valley
Water Mill dam. As you drive along Valley Water Mill Lake, turn right into the driveway and follow it to the Watershed
Center.
Go north on U.S. 65. North of I-44 take the first exit for Valley Water Mill Road or Farm Road 102. Turn left onto
Farm Road 102. Travel west and immediately after the road takes a sharp turn to the right, take the next left into the
driveway for the Watershed Center.
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Agenda Packet
City of Springfield - Greene County, Missouri
Stormwater Management Task Force
Guide for Members
Thank you for agreeing to serve on the Stormwater Management Task Force. As a member of the Task
Force, your input will help guide decision-making regarding stormwater management for Springfield and
Greene County, Missouri. This guide document is designed to help you be an effective participant in this
important community effort.
Task Force Purpose
Springfield and Greene County have experienced stormwater water quality and quantity issues in the past.
Property damage and inundated roadways have resulted from stormwater runoff. Both entities must make
additional investments in its stormwater system to continue meeting regulatory requirements and to protect
water quality. The Stormwater Management Task Force will help shape the work of both agencies in the
future by developing a set of recommendations for both governing bodies to consider. To assist with the
process, the project team will prepare the following information for the Task Force:
1. What is stormwater management and why is it important to our community?
2. How did we fund the stormwater management programs in the past?
3. What was accomplished with the investment made?
4. What are the current and future needs?
5. What are the potential funding sources?
Through a facilitated process, the Task Force will answer the following questions in their recommendations:
1. What principles should guide the community stormwater management programs?
2. What investments should be made in stormwater management?
a. What amount of capital investment should be made over what time period?
b. Should a permanent dedicated source of funding be implemented for required programs
and maintenance?
c. Should the capital funding source have a sunset and specific projects identified?
d. What type of maintenance program should be implemented?
e. Should water quality programs be developed to comply with regulations or exceed
standards?
3. How should we prioritize capital investments made?
4. What source(s) of funding are desired?
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Agenda Packet
5. What level of funding is desired?
6. How should we explain the issues and task force recommendations to the community?
The Task Force will provide the County Commissioners and the Mayor/City Council written
recommendations regarding these questions.
Task Force Membership
The Stormwater Management Task Force is a working group that includes representatives from various
stakeholder groups, including:
Citizen representationfor each City council zone
Environmental Groups or Organizations
Business and Industry
Development
Engineering and Financial experts
Citizens that have experienced flood damage
Institutional Interests (i.e. schools, hospitals)
County citizens
While the Task Force membership was designed to reflect a balance of interests, you are encouraged to
think about all sides of the issues. To facilitate such thinking, the Task Force meetings will be structured to
provide an opportunity for deliberation on all topics with the goal of developing a shared understanding of
the issues and alternatives to aid in better decision making.
Task Force Commitment
The Stormwater Management Task Force will meet approximately eight times from October 2012 through
April 2013. Meetings will be held approximately every three weeks except during the holiday season for up
to two hours.
Proposed meeting dates are Thursdays from 5:00 to 7:00 p.m. on:
1. October 25 5. February 7
2. November 15 6. February 28
3. December 13 7. March 21
4. January 17 8. April 4
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Agenda Packet
Roles and Responsibilities
Task Force
Provides a community-wide view from the stakeholder perspective;
Develops an understanding of issues and provides constructive feedback on information
presented;
Develops guiding principles that serve as a foundation for decision making related to the
community’s stormwater management programs;
Provides recommendations to the Mayor/City Council and County Commissioners;
Advises project team and staff on stakeholder outreach; and
Serves as a resource for the project team for stakeholder outreach activities.
Task Force Support Team
Frames the problem;
Identifies potential solutions;
Evaluates potential solutions based on agreed upon criteria;
Collaborates with the Stormwater Management Task Force, stakeholder groups and the general
public;
Develops final recommendations document for consideration of the Task Force;
Builds a partnership with the media so to educate and involve the public; and
Implements the stakeholder engagement plan.
Mayor/City Council/County Commission
The County Commission and Mayor/City Council will ultimately make the decisions regarding funding,
programs and policies to improve the community’s stormwater management.
Effective Participation Tips
As a member of the Stormwater Management Task Force, you are being asked to:
Share information and provide feedback about information collected by the Project Team;
Provide input to the Project Team about potential options; and
Assist the Project Team by sharing information with your neighbors and supporting the final
recommendations.
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Agenda Packet
To be an effective participant, it is important to read materials in advance of meetings, come to the meeting
ready to ask questions and participate in all discussions.
You will be provided a meeting calendar, including all meeting dates and locations so you can plan your
schedule. Agendas and background information will be provided in advance of meetings. And, the Project
Team is always available to answer questions and explain anything that you don’t understand or isn’t clear.
At the meetings, we ask that you follow these simple ground rules:
Share your best thinking;
Share and explore differences;
Agree to disagree, but don’t be disagreeable;
Be respectful of other’s perspectives by listening first for understanding and then speaking so that
your perspective is understood; and
Think about what is best for your entire community beyond your own interests.
Contacts
Please contact the Project Team whenever you have questions or concerns.
City Project Team contact
Todd Wagner, PE, Principal Stormwater Engineer, City of Springfield, Missouri
twagner@springfieldmo.gov
(417) 864-1932
County Project Team contact
Kevin R. Barnes, PE, Greene County Stormwater Engineer
kbarnes@greenecountymo.org
(417) 868-4147
Media inquiries
Cora Scott, Public Information Officer
cscott@springfieldmo.gov
(417) 864‐1119
Project Team contact
Sheila Shockey, Shockey Consulting Services
Sheila@shockeyconsulting.com
(913) 515-4365
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Agenda Packet
City of Springfield - Greene County, Missouri
Stormwater Management 101
INTRODUCTION
The City of Springfield and Greene County have invested time, energy, talents, and money to provide a
safe, healthy, and quality community for their citizens. A September 1993 flood raised the need for
improved stormwater management to the forefront of community planning. Managing stormwater runoff in
our growing community continues to be challenging - to control flooding, protect property and public safety,
to improve and protect our water resources, and to maintain compliance with federal and state
requirements.
The City of Springfield and Greene County are convening a community task force to provide input and
recommendations on how the City and County should continue to address its stormwater management
issues, including aging infrastructure, flood control, and water quality. Effective stormwater management is
vital to the community's health and economy, and to maintaining the City’s and County's compliance with
federal and state stormwater regulations.
The Task Force is charged with providing recommendations for the following:
1. What principles should guide the community stormwater management programs?
2. What investments should be made in stormwater management?
a. What amount of capital investment should be made over what time period?
b. Should a permanent dedicated source of funding be implemented for required programs
and maintenance?
c. Should the capital funding source have a sunset and specific projects identified?
d. What type of maintenance programs should be implemented?
e. Should water quality programs be developed to comply with regulations or exceed
standards?
3. How should we prioritize capital investments made?
4. What source(s) of funding are desired?
5. What level of funding is desired?
6. How should we explain the issues and task force recommendations to the community?
The Task Force will provide the County Commissioners and the Mayor/City Council written
recommendations regarding these questions.
Stormwater Management 101 Page 7/29 October 25, 2012
A series of questions and answers are presented in this document to the Task Force as background for
their work:
What is stormwater?
What is a watershed?
Why is good stormwater management important to our community?
Has stormwater been a problem in our community?
Who and what causes the problems associated with poor stormwater management?
What was accomplished with the investment made in stormwater management in the past?
How were these stormwater management investments funded?
What are current and future program needs?
What are the potential funding sources?
BACKGROUND
What is stormwater?
Stormwater is runoff water that results from precipitation events. It may also be used to apply to water that
originates with snowmelt that enters the stormwater system. Stormwater that does not soak into the ground
or evaporate becomes surface runoff. Stormwater runoff either flows directly into surface waterways or is
channeled into the storm system, which eventually discharges to receiving waters, such as area creeks,
streams, rivers and lakes. The stormwater system is separate from the wastewater system. Stormwater
typically receives little or no treatment prior to entering receiving waters.
Stormwater is of concern for two main issues: one related to the increased volume and timing of runoff
water, which can result in flood-related damage to property and receiving water bodies, and the other
related to potential contaminants that the water is carrying (water pollution).
Stormwater management is the planning, design, construction, operation and maintenance of a system to
infiltrate or evaporate rainwater before it becomes runoff, or to convey, store, treat and release rainwater
after it becomes runoff. Stormwater management in an urban setting is particularly challenging, due to
several factors, including:
1. Buildings and parking lots create hard or impervious surfaces that can dramatically increase the
amount of stormwater that does not soak in, and results in stormwater runoff.
2. Human activities, such as the use of vehicles and fertilizers, and industrial activities can create
sources of pollutants that are carried to our lakes, rivers and streams by stormwater runoff.
3. Buildings in the natural drainage ways are subject to flood damage.
4. Roadways are often designed to carry stormwater runoff. Sometimes too much stormwater floods
the streets or overtops a bridge making travel dangerous.
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Before development of the land, the majority of precipitation would soak into the ground (infiltration) or
evaporate into the air (evapotranspiration). This is called the natural hydrologic process. Figure 1
illustrates how urbanization can significantly impact the natural hydrologic processes of shallow and deep
infiltration, evapotranspiration and runoff. As the land is developed, harder (impervious) surface in form of
streets, sidewalks, roofs, and driveways are causing more stormwater to runoff rather than soak in or
evaporate. Sometimes, this can be as much as five times the amount of runoff in a natural environment.
The effect of these changes typically results in flood damage to property and flooded roadways causing
safety issues for the public. It can also result in more pollution being carried to area lakes, rivers and
streams. More stormwater runoff can cause stream bank channel and bank erosion, loss of trees and
vegetation along rivers, polluted water resources and loss of aquatic life habitat.
Figure 1. Illustration of How Urbanization Effects Natural Hydrologic Processes
The karst geology in southwest Missouri which is evident in our many caves, springs and sinkholes,
complicates the interaction between runoff, shallow groundwater and deep groundwater. Karst geology
can provide direct conduits for surface runoff to reach springs and groundwater more quickly than through
normal infiltration through soil. This could result in pollution of our natural springs.
What is a watershed?
The degree of flooding or water quality degradation along a waterway is typically related to the condition of
the watershed. A watershed is the land that stormwater runs across to a common point such as a lake,
river or stream. Watershed boundaries are formed by the natural topography of the land and are rarely
modified significantly by human activity. Figure 2 shows the major watersheds in the urban service area of
Stormwater Management 101 Page 9/29 October 25, 2012
Springfield. It is interesting to note that Springfield is located on top of a major watershed divide. The
area south of about Division Street drains south into the James River which flows into Table Rock Lake and
the White River into Arkansas, and then into the Mississippi River. The area north of this line drains north
to the South Dry Sac River and Little Sac River which flows into Stockton Lake and the Osage River
system, which drains to the Missouri River in central Missouri, and eventually into the Mississippi.
Figure 2. Springfield Watershed Map
Source: http://www.springfieldmo.gov/stormwater/watershed.html
Stormwater Management 101 Page 10/29 October 25, 2012
Why is good stormwater management important to our community?
Excessive stormwater can be a menace to a community if it is not managed properly. Some of the obvious
negative impacts are public health and safety issues, damage to property, devaluation of property and
neighborhoods, degradation of waterways and riparian habitat and negative impacts to our regional
economy. Good stormwater management practices can address the potential negative impacts and
convert stormwater runoff into a public asset through development of attractive recreational spaces central
around quality water resources. The result can be both an improvement in quality of life in the community
and improved economic development opportunities.
Not only must stormwater quality be protected for public health and our regional economy, it is also
regulated through implementation of the federal Clean Water Act (CWA). Federal and state regulations
specify what communities must do in an effort to minimize the potential negative impacts of stormwater
runoff on the quality of waterways. Non-compliance with federal and state rules can result in costly legal
actions against the City or County. Typical pollutants from land areas can be picked up and carried by
stormwater runoff into area streams, rivers, and lakes include oil, grease, and antifreeze from vehicles;
heavy metals from tires and brake linings; sediment from construction sites; nutrients from fertilizers and
pesticides applied to lawns and crops; bacteria from animals (dogs, geese, horses, cattle); chemicals found
in air pollution; and litter.
Sound stormwater management provides numerous benefits to the community. These benefits include, but
are not limited to, the following:
Increased public safety by reducing flooding of streets and private property;
Increased public safety by ensuring that stormwater infrastructure is structurally sound and not
prone to failures;
Enhanced environmental quality, including protection of area streams, rivers, lakes and drinking
water sources;
Opportunities for greenways and multi-use recreation areas;
Enhanced local recreation and tourism economy;
Reduction of potable water usage through rainwater collection and reuse;
Reduced cost of wastewater treatment by keeping stormwater and wastewater system separated;
Improved air quality;
Reduced risk of regulatory action against the City and County;
Reduced urban heat island; and
Improved wildlife habitat.
Has stormwater been a problem in our community?
Historic flood events in the community have defined Springfield's and Greene County's stormwater
management programs during much of the past twenty years. Defining events include the following.
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September 1993: The community experienced a flooding event from 8.5 inches of rain over 30
hours. The Ferguson sinkhole (south of Battlefield and between Kansas and Campbell Avenues)
filled quickly and did not drain for several days. Many other sinkholes in the City and County filled
and major rivers like the James experienced major flooding. Because the rain was more gradual
over a longer period of time, flooding on smaller tributaries in Springfield was minor. This flood
resulted in voter passage of the first Level Property Tax Stormwater Bond Issue.
July 2000: The community experienced 6-8 inches of rainfall in 3-6 hours over much of the City
and south of the City in the County, causing severe flash flooding on all tributary streams. Just
south of the City in Shadowood Subdivision, homes were severely damaged and even pushed off
the foundations. As a result, a property buyout in the Shadowood subdivision in Greene County
was initiated to prevent a similar occurrence in the future. This flood resulted in voter passage of
additional bonds funded by the Level Property Tax. These bonds were passed in 1995 - $14
million; 1999 - $14 million; 2001 - $15 million; and 2004 - $13 million.
July 2001: The community experienced 4-5 inches of rainfall in one hour on a small area near
Republic Road and Scenic Avenue causing severe flash flooding in Hidden Valley Subdivision just
outside the City. A project to buy out properties and construct improvements was initiated in 2007
and continued over several years. This project was funded with Parks and Stormwater sales tax.
Fortunately, no lives were lost during these flooding events.
Figure 3. 1993 Flood at Ferguson Sinkhole Figure 4. 2000 Flood at Chestnut Expressway
near OTC
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Figure 5. 2000 Flood in Shadowood Subdivision. Figure 6. 2001 Flood in Hidden Valley Estates
Note missing wall on damaged home. Subdivision. Note water level on sliding glass
door.
Who and what causes the problems associated with poor stormwater management?
Who causes the problems associated with poor stormwater management? We all do, because we live
here. As our communities grow, we change the landscape and alter places for rain water and snow melt to
soak into the ground or evaporate. The harder (impervious) the surface, the more stormwater runoff. Poor
stormwater management is a problem for:
People who live or work in flood prone areas;
People who drive during rain events on flood prone streets;
People who need emergency services during rain events;
Everyone who cares about the quality of water resources in the Ozarks.
An example of how the landscape changes over time is illustrated in the development map for
southwestern Greene County, from before 1980 to the present (see Figure 7). The subdivisions developed
in the 1980'sand prior have little or no stormwater infrastructure (dark brown color). The subdivisions
developed in the 1990s (tan color) are better but the only subdivisions meeting the current standards are
those developed after 2000 (yellow color).
Stormwater Management 101 Page 13/29 October 25, 2012
Figure 7. Recorded Subdivisions Southwest Greene County by Decade
What was accomplished with the investment made in stormwater management in
the past?
The focus of much of the stormwater program in the past 15 – 20 years, by the City of Springfield and
Greene County, was correcting issues that caused flooding, while in the last 5-10 years the focus has
begun to shift more toward water quality multi-purpose projects.
City of Springfield:
The City has completed approximately 100 significant projects over this period. The City has also
completed over $10 million in voluntary buyout of flood-prone properties to stop the cycle of repeated
flooding. Some example projects the community has completed include:
Erie Sinkhole to Ferguson Sinkhole Flood Buyout and Stormwater Improvements (south of
Battlefield Road and west of Campbell Avenue)
North Branch of Jordan Creek multi-purpose “daylighting” project for flooding and water quality
and trail development (near National Avenue and Division Street)
Floodplain buy-out program: approximately 150 properties
Fassnight, Sequiota and Doling Park renovations for flooding, infrastructure and water quality
improvements
A map of projects completed to-date and their locations are attached (see page 29).
Stormwater Management 101 Page 14/29 October 25, 2012
The City's website www.springfieldmo.gov/stormwater (click on Projects & Studies), provides descriptions
and pictures of the numerous investments made over the past two decades. A few are illustrated below, as
examples of the investments made to improve water quality and build assets for the community.
Figure 8. South Family Y Regional Detention Figure 9. Erie Sinkhole to Ferguson Sinkhole
greatly reduced downstream flooding in 2000, Flood Buyout and Stormwater Improvements,
near Glenstone Avenue and Republic Road south of Battlefield Road and west of Campbell
Avenue
Figure 10. Rain Garden at the Figure 11. North Branch of Jordan
Downtown Square Daylighting Project, near National
Avenue and Division Street
Stormwater Management 101 Page 15/29 October 25, 2012
Figure 13. Rain Garden Pilot Project
Figure 12. Fassnight Park Stream
Stabilization and Historical
Preservation
Figure 14. Rain Garden at
Doling Park to improve lake
water quality
Springfield has invested $71.8 million into stormwater capital improvement projects in the past 18
years, since the 1993 flood. The City has invested over $10 million in the Voluntary Flood Buyout
Program to stop the cycle of flooding of flood prone properties and reclaim the floodplain for public
recreational use. Since the City received its state stormwater permit in 2001, it has spent $300,000 to
$400,000 per year, for a total of $3,577,000, on permit requirements that address water quality issues,
including public education, water quality monitoring, pollution investigations, permitting and inspecting
Stormwater Management 101 Page 16/29 October 25, 2012
construction sites for erosion and sediment control, and other activities. A summary of how public
funds have been spent in Springfield is provided in Table 1 and Figure 15.
Table 1. City of Springfield, Missouri Stormwater Program Expenditure Breakdown
Capital Improvements (construction) $71,811,000
Floodplain Study/Acquisition/Maintenance/Cleanup $10,349,000
Water Quality Study/MS4 Permit $3,577,000
General Administration $5,000,000
TOTAL $90,737,000
Figure 15. City of Springfield, Stormwater Expenditures
City Stormwater Expenditures, 1995-2012
($90.7M)
Water Quality Gen Admin
Study/MS4 Permit 6%
Floodplain Study/ 4%
Acquisition/Maint./
Cleanup
11%
Capital Improvements
(construction)
79%
Greene County, Missouri:
Greene County has spent $4.4 million on the purchase of flood-prone properties and $800,000 on capital
improvement projects. The County spends approximately $300,000 per year to meet stormwater permit
requirements and another $250,000 per year for administration of other water quality related programs
such as floodplain management and on-site wastewater system inspection.
City and County Water Quality Programs:
The City and County both have programs to manage stormwater quality to protect the community’s water
resources and comply with their respective Municipal Separate Storm Sewer System (MS4) permits issued
by the Missouri Department of Natural Resources (MDNR). The permits include requirements for policies,
Stormwater Management 101 Page 17/29 October 25, 2012
ordinances, public education and participation efforts, inspection activities, stream monitoring, and capital
improvement projects for water quality. The federal Clean Water Act requires that communities have a
program with specific components to address the impacts of stormwater runoff on water quality. These
requirements are implemented through MS4 permits issued to communities. In Missouri, these permits are
issued and enforced by the Missouri Department of Natural Resources. Some highlights of the City and
County programs are summarized below.
Land Disturbance Programs, by both the City and County permit and inspect construction sites to
minimize the discharge of sediment and other pollutants into the stormwater system. The program
also provides education and training opportunities for engineers, developers, contractors, and
others involved with managing construction site runoff.
Numerous water quality and watershed activities are held in the area to educate and involve
citizens. These activities include Storm Drain Reveal (a program to educate the public using storm
drain murals) a rain barrel rebate program, rain garden technical assistance and workshops,
Adopt-a-Stream volunteer program, and public speaking engagements with various community
groups and classes. Partnerships with and support for Watershed Committee of the Ozarks,
James River Basin Partnership, and others are vital to providing education and outreach on water
quality issues in the community.
Figure 16. Figure 17. Storm Drain Reveal mural
Adopt-a-Stream
Program
Show Me Yards & Neighborhoods is a lawn and landscape education program the City of
Springfield started over 10 years ago. The program provides training to home owners on
sustainable lawn and landscape maintenance. The program also has over 100 trained
professionals. The program participates in numerous community activities and events each year,
partnering with other groups on water quality outreach in the community and region.
Stormwater Management 101 Page 18/29 October 25, 2012
Monitoring programs assess the quality of stormwater runoff and the chemical and biological health
of our urban streams, as well as screening the stormwater system for illicit discharges.
Development standards, for new developments, require the construction of best management
practices such as pervious pavement, rain gardens, or water quality basins to reduce or treat
runoff.
The following are some specific activities completed in 2011-2012 by the County as part of its program to
address stormwater quality.
131 public contact events with 100,000 people in attendance.
$93,528 was used toward educational partnerships with the Watershed Committee of the Ozarks.
These funds were used for 38 classroom field trips, 31 classroom lessons, and 8 events. The
programs contributed 800 volunteer hours. Funds were also contributed to the construction of the
Watershed Center.
$5,000 per year goes toward educational partnerships with the James River Basin Partnership for
10 watershed festivals involving 2,300 fifth graders, the annual Dam Jam event with 5,000 people
in attendance, and septic tank assistance to property owners. Funds were also used for rain
garden programs and the incentive program for rain barrel purchases by homeowners.
Project WET (Water Education for Teachers) receives $10,000 per year to help fund the WET
coordinator who works closely with the public school system to incorporate water education into the
curriculum and for classroom lessons and field trips.
Greene County continues to support Legacy Trails, a Low Impact Development subdivision, with
$14,000 per year to maintain post-construction BMPs.
Water quality monitoring is conducted four times per year at eight monitoring stations.
The stormwater program supports training to contractors for on-site wastewater treatment system
installation. Eighty-six people attended in the past year.
How were these stormwater management investments funded?
Historical funding sources for both the City and County have relied primarily on the tax system to address
stormwater issues.
City of Springfield:
In February 1994, after the 1993 flood event, the City of Springfield, through the direction of a Citizens'
Stormwater Task Force, placed on the ballot both a 1/10 cent sales tax and a stormwater utility to pay for
stormwater improvements. Neither ballot measure was approved by the voters. A probable contributor to
the failure was a controversial crime ordinance which was also on the ballot.
In 1995, voters approved the City issuing General Obligation (G.O.) bonds in the amount of $14 million to
fund stormwater improvements. In 1999, voters again approved the City issuing G.O. bonds in the same
amount, with a condition that the property tax rate would remain level. The Level Property Tax (LPT) then
Stormwater Management 101 Page 19/29 October 25, 2012
became the funding source to pay back future G.O. bond issues for stormwater improvements. Voters
approved subsequent bond issues in the amount of $15 million and $13 million in 2001 and 2004,
respectively, to fund additional stormwater improvements and programs. The total revenue generated from
these bond issues is over $56 million including any earned improvements to the stormwater system
including construction of conveyance improvements, buyouts of flood prone properties, construction of
stormwater detention ponds, and multipurpose stormwater and recreation amenities. A part of these funds
was also used for water quality programs and permit compliance through 2007.
Detention buy-out or in-lieu payments provide about $100,000 per year. This amount varies with
construction activity in the community. The money stays in the same watershed in which it is collected and
is used for regional detention or conveyance improvements.
A City Capital Improvements Sales Tax that began in 2010 will generate about $2 million for stormwater
improvements. The Sales Tax ends in 2013. The stormwater program in Springfield also uses a small
amount of funds from the General Fund, primarily spent on administrative costs.
Greene County Funding Sources:
Greene County has, historically, funded a very limited stormwater program through the general fund.
Stormwater management systems located within road right-of-way are maintained by the Greene County
Highway Department using Road & Bridge funds. The County does not fund maintenance of stormwater
management systems outside of road right of way. Prior to passage of the Parks/Stormwater tax in 2006,
the County was only able to perform capital improvement projects using state and federal grants. Following
passage of this tax, the County has utilized the funding to reduce flooding in the worst areas by providing
much needed channel maintenance and purchasing flood-prone properties. The sales tax revenue source
ended in July 2012.
The funding sources and amounts for the City and the County are summarized below and presented in
Tables 2 and 3, and Figures 18 and 19.
Table 2. City Stormwater Program Funding Breakdown (1995-2012)
Level Property Tax $56,600,000
Payment in Lieu of Detention $ 3,000,000
Federal/State Funds $ 7,500,000
Parks/Stormwater Sales Tax (2007-2012) $16,500,000
General Fund $ 5,000,000
Capital Improvements Sales Tax (2010-2013) $ 2,000,000
TOTAL $90,600,000
Stormwater Management 101 Page 20/29 October 25, 2012
Figure 18. City of Springfield Stormwater Revenues
City Stormwater Funding 1995-2012 ($90.6M)
Capital Improvements
General Fund Sales Tax (10-13)
6% 2%
Parks/Stormwater
Sales Tax (07-12)
18%
Federal/State Grants
Level Property Tax
8%
(95-12)
63%
Payment in Lieu of
Detention
3%
Table 3. County Stormwater Program Funding Breakdown (2000-2012)
Federal/State Funds $ 700,000
Parks/Stormwater Sales Tax (2007-2012) $7,700,000
General Fund (approx. $250,000/year 2007-2012) $1,500,000
TOTAL $9,900,000
Stormwater Management 101 Page 21/29 October 25, 2012
Figure 19. Greene County Stormwater Revenues
County Stormwater Funding, 2000-2012
General Fund 15% Federal/State 7%
Parks/Stormwater
Sales Tax (07-12)
78%
City & County Funding Sources:
¼ Cent County Sales tax
A citizen committee looking at stormwater funding recommended a ¼ cent county sales tax. This tax was
split with the Springfield/Greene County Parks Department - 1/8 cent to parks and 1/8 cent to stormwater
projects. The county sales tax was passed in 2006. Collection of the tax began in July 2007 and ended in
July 2012, generating about $16 million for the City and $8 million for the County, total over the five year
period. It was used for waterways projects and programs to benefit water quality in parks and throughout
the drainage system. Funds were split amongst the local governments, based on population. Several
projects in parks have been completed by the City recently including Fassnight, Sequiota, Doling and
Dickerson Parks. The sales tax revenue source ended in July 2012.
Big Urbie Water Quality Grant:
The City and County partnered with Watershed Committee of the Ozarks, James River Basin Partnership
and others on a CWA Section 319 Grant application which was awarded in 2011. The 4-year grant,
nicknamed “Big Urbie” provides $1 million for projects to address the water quality impacts of stormwater
runoff, including practices like rain gardens, rainwater harvesting, and pervious pavement on public and
school properties, as well as in partnership with homeowners and businesses. The City is providing
$470,000 in matching funds. The City and County are providing technical assistance and project
management. A stipulation of Section 319 water quality grants is that the grant can only be used for water
quality projects that are above and beyond what the City and County are required to do by their MS4
permits. The Big Urbie water quality grant ends in 2015.
Stormwater Management 101 Page 22/29 October 25, 2012
THE FUTURE
What are the current and future needs?
There is still a lot of work to be done to resolve stormwater management and flooding issues, as well as to
meet increasing water quality permit requirements. There is not enough money to do everything. No
community typically has enough resources to fix all the stormwater problems. Affordability of programs and
investments in stormwater management and water quality protection will take careful balancing.
As Springfield and Greene County move forward with future investments and to meet regulatory
requirements, there are three areas of focus to the work:
1. flood risk & damage reduction;
2. maintaining infrastructure investment; and
3. water quality protection.
The diagram below illustrates how the three focus areas relate to each other, with some overlapping
opportunities. Projects and programs that fall within the overlapping, shaded areas will generally provide
the most benefit to the community for every dollar spent.
Figure 20. Stormwater Management Issues
Flood risk &
damage
reduction
Maintaining
Water Quality
Infrastructure
Protection
Investment
Identified Needs
Flood Risk & Damage Reduction – Improving motorist safety and flood damage to structures.
It is estimated that the City of Springfield would need $700 million to reduce flood damage and improve
motorist safety to accepted national standards during heavy rains. Springfield has $100 - $200 million
identified as high priority projects that would address the areas of most frequent and severe flooding. A
study of the flood-prone areas within the City and the unfunded stormwater system needs to correct the
Stormwater Management 101 Page 23/29 October 25, 2012
problems showed 664 projects totaling 293 miles of stormwater conveyance system improvements. The
City’s unfunded stormwater improvement needs are summarized by watershed in the following table.
Table 4. Unfunded Stormwater Improvement Needs
Watershed Length (feet) Estimated Cost (dollars)
Spring Branch 17,421 6,970,000
Pea Ridge Creek 62,310 22,930,000
South Dry Sac 15,300 6,550,000
Lower Jordan Creek 148,782 74,560,000
N. Branch Jordan Creek 80,836 51,540,000
S. Branch Jordan Creek 1,647,000 80,200,000
Upper Wilson Creek 196,452 76,296,000
Lower Wilson Creek 52,100 20,850,000
South Creek 145,160 58,870,000
Fassnight Creek 186,875 89,520,000
Galloway 192,615 89,620,000
Thompson 36,900 13,740,000
Inman Creek 61,902 27,200,000
Ward Branch 111,700 48,820,000
James River 75,975 44,360,000
Totals 3,031,328 $712,026,000
Greene County has an inventory of the stormwater system but no assessment on the needs for capital
improvement projects. Since County regulations regarding stormwater infrastructure were not implemented
until the 1990s, there are numerous subdivisions with inadequate drainage infrastructure.
Maintaining Infrastructure Investment – Protect past investments and infrastructure.
Both the County and the City provide minimal maintenance to their existing infrastructure.
The City spends about $1 million annually on maintenance which includes vegetation control and
emergency repairs. Some examples of infrastructure maintenance needs facing the City of Springfield are
briefly described below:
Springfield has approximately $500 million in stormwater system assets. This includes 600 miles
of pipes, culverts, and drainage ways. The City is currently assessing the condition of this
infrastructure system. In very rough terms, if the system components had a life expectancy of 100
years, then Springfield would need $5 million for an infrastructure replacement program annually to
Stormwater Management 101 Page 24/29 October 25, 2012
move from a reactive maintenance program to a proactive maintenance program protecting past
investments.
Collapsed box culverts (many are 50 to 100 years old) are a growing concern as the historical
stormwater system reaches its life expectancy. Collapsed culverts can be a public safety hazard
and can restrict the movement of stormwater and damage the transportation system. Several
collapses have occurred in the past several years under the street, sidewalks, structures, in yards,
and in parks. It is expected that as long as infrastructure replacement is underfunded that these
occurrences will continue to increase.
A specific infrastructure concern is the condition of corrugated metal pipe culverts. Many of these
have been inspected and are deteriorating, nearing their life expectancy of 30 to 50 years.
Springfield owns 23 regional stormwater basins to reduce downstream flooding that are maintained
by the Springfield Public Works Department. The City stormwater permit requires the City to
investigate opportunities to use these areas for more effective water quality protection. Conversion
of basins to water quality treatment generally increases the maintenance requirements
significantly.
The City has acquired over 150 flood prone properties over the last 18 years. Most of these
properties are maintained by the Department of Public Works. While there are many benefits of
this program, property maintenance costs have gone up significantly due to these increases in
City-owned property.
The County has an inventory of the stormwater system but no current assessment on the needs for
maintenance projects. The County Highway Department maintains everything within the transportation
system right-of-way. Everything outside this area is maintained by home owners or home owners
associations. Most of the infrastructure is relatively new, built since the 1960s but not built to current
standards. Due to lack of maintenance, many of the open channels have become clogged with sediment
and yard waste reducing their capacity for stormwater conveyance.
Water Quality Program – Minimizes stormwater runoff pollution.
The City currently spends nearly $1 million annually to comply with clean water regulations that are
designed to keep our lakes and streams clean and beautiful, as well as provide a safe and natural habitat
for fish and wildlife. This cost is expected to continue to increase significantly with the issuance of the
City’s next MS4 permit in 2013. In addition to continuing to meet current permit requirements, the revised
permit is expected to contain an increased level of planning, inspection, tracking, and reporting
requirements to demonstrate effective implementation. Anticipated requirements include inspection to
insure best management practices for controlling stormwater are utilized on new developments and
redevelopments, as well as city projects and facilities. The City’s illicit discharge and industrial inspection
components of stormwater management are expected to increase. Best Management Practice structures
built for managing stormwater quantity may require retrofitting to better address water quality issues. These
increased MS4 permit elements will require additional staffing and resources.
Greene County's stormwater permit will expire in March 2013. A permit renewal application is due in May
2013 to Missouri Department of Natural Resources (MDNR). Changes to Greene County's Stormwater
Stormwater Management 101 Page 25/29 October 25, 2012
Management Program from the current permit are anticipated to be more stringent monitoring, reporting,
and public involvement requirements. Additionally, it is anticipated that all new construction and re-
development sites will be required to reduce the total volume of runoff using post-construction infiltrative
Best Management Practices.
An unknown regulatory requirement is looming in the near future. Jordan, Wilsons, and Pearson Creeks
are on the state’s list of impaired waterways. Total Maximum Daily Loads (TMDLs) were issued by EPA to
address these impairments. The City is currently in litigation with EPA to address the City’s concerns with
how these documents were written. The resulting approach will likely require some level of expenditure by
the City and County to study and address these impaired streams. Columbia, Missouri has a similar
situation and they are estimating 70 stormwater detention basins are needed within one watershed alone.
In addition to these water quality issues, the U.S. Environmental Protection Agency is promoting an
integrated planning and permitting process. The integrated planning process combines point source
permits for wastewater treatment plants (WWTP's) and the MS4 stormwater permit. Springfield is
contemplating trying this new approach to set environmental priorities and save monetary resources.
Integrated planning is designed to save municipalities resources, although not eliminate administrative
costs.
What are the potential funding sources?
Many communities across the Midwest and United States have grappled with securing long-term monetary
resources to fund stormwater management programs. Below are some points the Task Force will consider
and discuss in the coming months.
The types of funding sources generally available to governments include sales tax, property tax, or a
stormwater utility fee. How much revenue can be generated by each potential source? Some estimates on
a County-wide sales tax include:
1/10th of one percent generates $4 million/per year.
1/8th of one percent generates $5.5 million/per year.
1/4th of one percent generates $11 million/per year.
A utility fee could be enacted that charges property owners for the amount of hard (impervious) surface
they have on their property or the amount of runoff that is generated on their property. The Level Property
Tax is considered an inconsistent source due to competing needs for the funds and the scheduling on
general obligation bonds. All the needs of the local government must be weighed when deciding how to
use these funds.
Any new revenue source will likely need to be approved by the voters due to the Missouri Hancock
Amendment. Some revenue sources have limitations on how funds can be used. Therefore, the revenue
source needs to match with the program needs.
Stormwater Management 101 Page 26/29 October 25, 2012
The Vision 2020 Comprehensive Plan and the 2030 Strategic Plan both identified water quality and
stormwater management as critical issues for the Springfield community to continue to address. Some
recommendations from the Vision 2020 plan have been implemented. In the 2030 Strategic Plan, the
Natural Environment Committee addressed Stormwater Funding and Watershed Impacts. This committee
recommended a sustainable, adequate funding source be in place by 2017. The committee anticipated the
renewal of the Parks/Waterways Sales Tax in 2012 for another five years. Because that renewal did not
occur, the need for a sustainable, adequate funding source is now more urgent. In addition, The Police
Fire Pension Fund 3/4 cent Sales Tax continues for another 5 years. The City of Springfield is committed
to no new taxes during this time frame, unless they are part of a County-wide tax or necessary to meet an
unfunded mandate.
Stormwater Funding Watershed Impacts
"Major Goal: Ensure sustainable, adequate "Major Goal: Maintain or restore the
City and County stormwater funding for water pre-development hydrology of our
quality protection and infrastructure watersheds and protect our waterways
management. from pollution.
Assumptions: Urbanization has hydrologic,
Provide sustainable, adequate funding for geomorphic, and biological effects on a watershed
City/County stormwater management programs. that can be minimized with a holistic, prioritized
approach (National Research Council, 2008).
Protection of Ozark streams with bank stabilization,
Responsible Group: Public Works riparian corridor restoration, and greenways is a
Stormwater Services Division and Greene cost-effective way to reduce phosphorus inputs and
County Resource Management associated algae blooms in area lakes, and
provides significant economic benefits in tourism,
Proposed Performance Measure(s): health care, and home values 5. Potential impacts
1. Renewal of the 1/4 cent on karst systems and underground infrastructure
Parks/Waterways Sales Tax in need to be considered when promoting stormwater
2011. infiltration practices."
2. Convene a task force in 2014.
3. Sustainable, adequate funding in
place when the 1/4 cent sunsets Recommendations include:
in 2017. Public use of Low Impact
Estimated Cost to Achieve: $16.5 million Development
annually (2005 estimate) Coal Tar Ban
Proposed Funding Source(s): To be
Support State Water Pollution Control
determined by task force"
Regulations
Riparian Corridor Restoration
Stormwater BMP Retrofitting
More detailed information will be provided to the Task Force in future meetings. City and County staff and
Shockey Consulting will provide more information in specific areas, as requested by the Task Force.
Stormwater Management 101 Page 27/29 October 25, 2012
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S. ASPEN AV
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Southwest S. LIPSCO MB AV
S. KANSAS EXPY
W. KINGSLEY ST
S. GLENN AV
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W. SILVER LEAF ST
Greene County
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S. SWA N AV W. REPUBL IC ST
by Decade S. FARM ROAD 125
W. REPU BLIC RD
W. LARK ST
W. KAREN DR
S. HILLCREST AV
W. LARK ST
S. DEBORAH RD
W. LARK ST
S. FARM ROAD 131
S. COX AV
S. MEADOWLARK DR
S. SHADY LAKE AV
S. SUNRISE AV S. APPLETON DR
S. TIMBERCREEK AV
W. MARC ELLA DR W. SWALLOW ST
S. YORK AV
W. SWALLOW ST
S. JONATHAN AV W. AUSSIE CT S. HOLIDAY AV
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W. SWALLOW ST
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S. HOLIDAY AV
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S. F OR E
SP
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Greene County Planning & Zoning
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Stormwater Projects (1995-2012)
City of Springfield, Missouri
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Legend
4 Stormwater Projects
Stormwater Projects
City of Springfield, Missouri
I
DISCLAIMER: All information included on this map or digital file is
Page 29/29 provided "as-is" for general information purposes only. The City
of Springfield, and all other contributing data suppliers, make no
warranties, expressed or implied, concerning the accuracy, completeness,
0 2,900 5,800 11,600 17,400 23,200
reliability, or suitability of the data for any particular use. Furthermore, the
Feet
City of Springfield, and all other contributing data suppliers, assume no
SCALE: 1:125,000 liability whatsoever associated with the use or misuse of the data.
Stormwater Management Task Force
October 25, 2012
Sequiota Park
Facilitator: Shockey Consulting
Staff Support:
City of Springfield, Missouri
Stormwater Engineering
City of Springfield
Department of Public Works
Greene County, Missouri
Stormwater Engineering
Public
Greene County Works Department
Resource Management
Task Force Support Team
Purpose and Commitment Springfield staff
Greene County staff
Role and Responsibilities
Shockey Consulting Services
Tips for effective engagement
Urbanization = Impervious Surfaces
Sidewalks
Roads
Driveways Parking
Buildings
1
Stormwater Management Task Force
October 25, 2012
Sac River
James River
Springfield
watersheds =
25‐35% impervious
The stormwater system is separate from the sanitary sewer system
and does not go to a treatment plant.
Impervious Cover Influences Dry Weather Impervious Cover Influences Wet Weather
Stream Flow Stream Flow
When it rains, a large amount of water . . .
Many streams draw from
groundwater.
Impervious surfaces prevent water
from soaking into the ground.
This can result in lower stream
flows during dry weather.
Runs off of Enters the storm Is directed straight to
impervious surfaces drain system the stream
Increased runoff can cause…
Longear Sunfish ‐ Fassnight Fall 2008
Jefferson & Bennett June 13, 2008
Decrease in aquatic
More Frequent Flooding biodiversity
Chestnut Expy July 12, 2000 Ravenwood Branch, Springfield
Higher Flood Levels Stream bank erosion
Center for Watershed Protection Center for Watershed Protection
2
Stormwater Management Task Force
October 25, 2012
Impervious Cover Influences Water Quality
Pollutants build up on impervious surfaces and wash off into area
Potential Negative Impacts
waterways when it rains. Public health and safety
Property damage
Devaluation of property and neighborhoods
Degradation of waterways
Regional economy (fishing, recreation, tourism)
Center for Watershed Protection
Infrastructure to Maintain
Good Stormwater Management
Minimize flood impacts City of Springfield
Maintain infrastructure >600 miles
>15,000 inlets
Attractive, multi‐purpose spaces
Floodplain/riparian corridor protection
Water quality and habitat protection
Regulatory compliance
Improved quality of life and economic development
Infrastructure to Maintain
Point Features:
Springfield/Greene Co
>800 miles
>20,000 inlets
Line Features:
Area Features:
3
Stormwater Management Task Force
October 25, 2012
Ingram Mill & Sunshine
Chestnut & 65 OakStar Bank – Battlefield west of National
Minimizing Development Impacts
Best Management Practices – reduce or treat runoff
Low Impact Development
Green Infrastructure
Jordan Creek North Branch at Division
Fassnight (prior
Creek at to improvements)
Jefferson
Fassnight
South
Jordan Creek at Main Creek
Creekbetween
along Sunset
Jefferson
west& of
Bennett
Campbell
Jordan Creek near Mt Vernon
Pervious Pavement
Watershed Center Campbell & Olive
4
Stormwater Management Task Force
October 25, 2012
Rainwater Harvesting Rainwater Harvesting
Green Circle Shopping Center
– Republic Road & National
Watershed Center
Water Quality Basins
Green Roof
Modular Extensive Green Roof
Greene County Public Safety Center
Lenexa, KS
Green Roof
Rain Gardens
Green Circle Shopping Center
Doling Park Rain Garden Park Central East Rain Garden
5
Stormwater Management Task Force
October 25, 2012
Green Streets Low Impact Development
Portland, OR
Los Angeles Elmer Ave Project
Weller Avenue Rain Garden Walnut Street Pervious
Weller Concrete
Avenue
Minimizing Pollution
Individuals
Businesses/Industries
Construction
Municipal
Legacy Trails Subdivision
Curbless Streets
Roadside swales
Native Plantings
City Stormwater Program Funding Breakdown
(1995‐2013)
Level Property Tax $56,600,000
Level Property Tax Payment in Lieu of Detention $3,000,000
Parks and Stormwater Sales Tax
F d
ederal/State Funds $ 00
7,500,000
General Obligation Bonds
Federal and State Grants Parks/Stormwater Sales Tax (2007-2012) $16,500,000
Detention Buy‐out or In‐lieu payments General Fund $5,000,000
Capital Improvements Sales Tax
Capital Improvements Sales Tax (2010-2013) $2,000,000
General Fund
TOTAL $90,600,000
6
Stormwater Management Task Force
October 25, 2012
City Stormwater Program Approximate Annual
City of Springfield Stormwater Revenues
Funding (1995‐2013)
City Stormwater Funding 1995-2013 ($90.6M)
Capital Improvements $7,000,000
General Fund Sales Tax (10-13)
6% 2% $6,000,000
Grants
$5,000,000 1/4 cent
Parks/Stormwater P/S Tax
Sales Tax (07-12) $4,000,000 Buyout
18%
LPT 04
Federal/State Grants $3,000,000
Level Property Tax LPT 01
8%
(95-12) LPT 99
$2,000,000
63%
LPT 95
$1,000,000 General
$‐
Payment in Lieu of 1995
1996
1997
1998
1999
2000
2001
Detention
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
3%
2012
2013
County Stormwater Program Funding
Breakdown (2000‐2012) Greene County Stormwater Revenues
County Stormwater Funding, 2000-2012 ($9.9M)
Federal/State Funds $700,000 General Fund 15%
Federal/State 7%
Parks/Stormwater Sales Tax (2007-2012) $7 700
,700,000
General Fund ($250,000/year 2007-2012) $1,500,000
TOTAL $9,900,000 Parks/Stormwater
Sales Tax (07-12)
78%
Stormwater Management Issues
•Voluntary flood buyout program: >$10M
Flood risk & •Flood reduction projects: $70M
damage
reduction •Stormwater Permit Compliance: >$400k annually.
•Water quality improvements projects ‐ Stormwater Best
Water Maintaining Management Practices (BMPs)
Quality Infrastructure
Protection Investment
•Infrastructure repairs: minimal, some projects replace
•Public Education and Outreach
7
Stormwater Management Task Force
October 25, 2012
Voluntary Flood Buyout Program
• Stops the Cycle of Repeated Flooding of individual
homes or entire neighborhoods – leads to lower
property values, dilapidated properties
• Over $10M spent since 1994
• Over 200 acres acquired, mostly in or adjacent to
floodplain
• Nearly 200 acquisitions
• Approximately 150 structures
• Matched approximately $750,000 in FEMA funds
Role of Floodplain Buyouts in Trail Development
Voluntary Flood Acquisition ‐ Examples
Galloway (1998) Seminole to Battlefield Road 43 ac $ 425,000
Galloway (2003) Southern Hills to Battlefield Road 16 ac private
South (1998) Close Park 52 ac $ 90,000
South (2001) Campbell to National 20 ac $1,300,000
Wilsons (2001) Scenic and Bennett Mobile Home 9 ac $ 382,500
Wilsons (2001) Open Space 43 ac $ 100,045
Fassnight (2005) Parkview Christian Church 2 ac $ 15,200
Fassnight (2005) Maple Park Cemetery 2 ac $ 15,000
Jordan (2004) Mount Vernon to Grand 20 ac $ 119,000
Jordan (2005) Catalpa to Bennett 10 ac $ 53,500
TOTAL 10 PROPERTIES 211 AC $2,500,245
Voluntary Flood Acquisition ‐ Examples Voluntary Flood Acquisition ‐ Examples
8
Stormwater Management Task Force
October 25, 2012
Erie to Ferguson Drainage Channel
Erie‐Ferguson Buyout and Flood Reduction
•Repetitive flooding 1977, 1993
Before and after aerial with floodplain overlay
•Approximately 17 home buyouts at Ferguson Sinkhole
• Approximately 13 home buyouts at Erie Sinkhole
• Approximately $4M in construction of flood control
channel over 3 phases
• Environmental Award Winner
Ferguson Sinkhole (Sept 1993) Ferguson Sinkhole (July 2000)
Multi‐purpose stormwater facilities
Erie to Ferguson
Drainage Channel
Ferguson Sinkhole
Greenspace
South Family Y Regional Detention
to reduce downstream flooding
9
Stormwater Management Task Force
October 25, 2012
North Branch of Jordan aerial, before/after North Branch of Jordan ‐ Before
North Branch of Jordan ‐ Today Fassnight Creek – Flood Control/Park Restoration
Fassnight Creek Phases Fassnight Creek – Flood Control/Park Restoration
Phase 1
Phase 2
Phase 3
10
Stormwater Management Task Force
October 25, 2012
Fassnight Creek – New Bridges Home Grown Green Roof
Shadowood Subdivision
Water Line
11
Stormwater Management Task Force
October 25, 2012
Water Line
12
Stormwater Management Task Force
October 25, 2012
2001 2012
X X
X
X
X
X
X
X
X X
X
X
X
Ward Branch Stream Bank Stabilization
Twin Oaks Country Club
Nov. 2004 Jan. 2007
June 2007 May 2010
Hidden Valley Estates
Flooded roads, yards,
and homes
13
Stormwater Management Task Force
October 25, 2012
400 acre watershed 100yr, 1 hr storm = 1,100 cfs 1968 Aerial
2005 Aerial: Homes built in 1977
14
Stormwater Management Task Force
October 25, 2012
2005 2012
X
X
X
X
X X
X X
X X
X
X
X X
X
2007‐2012 Spring 2010
15 homes purchased Box culvert installation
under Allen Drive
and demolished using Parks
and Stormwater tax funds Greene County Highway Dept
Fall 2010
Channel Construction for
flood protection
4-25-11
15
Stormwater Management Task Force
October 25, 2012
Stormwater BMPs Regulatory Compliance
Federal Clean Water Act (CWA)
Missouri Department of Natural Resources (MDNR)
Municipal Separate Storm Sewer System (MS4) Permit
Rain Garden/Infiltration Basin
Greene County Archives/Elections Center
LEED Silver
Land Disturbance Permit Program
Development Review Land disturbance 1 acre or greater
Infrastructure and conveyance standards Permit
Inspections
Flood control requirements Education and training
Water quality requirements
Municipal Operations Illicit Discharges/Industrial Runoff
16
Stormwater Management Task Force
October 25, 2012
Public Education & Involvement
Partnership is key
Watershed Committee of the Ozarks
James River Basin Partnership
Project WET
MDC
Water quality monitoring
Stormwater runoff sampling
Stream monitoring (chemical and biological)
Flood risk &
damage
reduction
Water Maintaining
Quality Infrastructure
Protection Investment
17
Stormwater Management Task Force
October 25, 2012
18
Stormwater Management Task Force
October 25, 2012
What are the categories of need?
Flood damage reduction &
public safety
Flood risk &
damage
Water quality protection & reduction
federal and state regulatory
compliance
Water Maintaining
Quality Infrastructure
Infrastructure replacement Protection Investment
& maintenance
City Unfunded Needs List (Flooding) Flood damage reduction and public safety
Watershed Length (feet) Estimated Cost (dollars)
Spring Branch 17,421 6,970,000 Needs based on
Pea Ridge Creek 62,310 22,930,000
South Dry Sac 15,300 6,550,000
nearly 3,000 calls for service
Lower Jordan Creek 148,782 74,560,000 analysis by city staff where system is non‐existent or
N. Branch Jordan Creek ,
80,836 51,540,000
,
inadequate
S. Branch Jordan Creek 1,647,000 80,200,000
Upper Wilson Creek 196,452 76,296,000 Priority currently given to frequency, severity and type
Lower Wilson Creek 52,100 20,850,000
South Creek 145,160 58,870,000
of flooding (structural, major arterial, life safety)
Fassnight Creek 186,875 89,520,000
High priority needs are in the $100‐$200M range
Galloway 192,615 89,620,000
Thompson 36,900 13,740,000
Inman Creek 61,902 27,200,000
Ward Branch 111,700 48,820,000
James River 75,975 44,360,000
Totals 3,031,328 $712,026,000
City/County Need for Water Quality/Regulatory
City Need for Infrastructure Replacement Compliance
A recent study found the approximate replacement City Direct non‐capital costs are currently about
value of the existing 600 mile long drainage system $500k annually. This cost is expected to increase to
is $500M. $1M or more annually with requirements of the new
permit and federal stormwater rule, anticipated to
A very simplistic life cycle analysis shows that, with a be effective in 2013.
projected 100‐year life cycle, the annual County spends $300k annually.
replacement cost is $5M. Other long term costs related to meeting more strict
water quality standards are not known but could be
significant.
19
Stormwater Management Task Force
October 25, 2012
Task Force Meeting Place and Times
Future meetings to be at new Public Safety Center near
Chestnut Expressway and Campbell Avenue
November 15
December 13 When is the best time to
January 17 meet?
February 7 4:00 – 6:00 p.m. or
February 28 5:00 – 7:00 p.m.
March 21
April 4
20