2009 City of Bozeman Storm Water Update

Slides:



Advertisements
Similar presentations
Session 1 Outline Overview of Phase II What is expected? What should we be doing today? What are others doing? Suggested steps to move your program forward.
Advertisements

The Urban Connection: NPDES and Storm Water in the State of Delaware Sandra M. Goodrow, Ph.D., C.F.M. Environmental Scientist IV Surface Water Discharge.
SW101 Municipal Separate Storm Sewer Systems (MS4s)
Stuck in the SWMP Storm Water Management Programs: New challenges for the Transportation Community.
1 Overview of Regulations for Water Quality Protection in South Carolina n Federal Clean Water Act/ NPDES Storm Water Program n South Carolina Pollution.
Stormwater Regulations and Programs Law Permits Watershed Programs Information available at
STORMWATER Did you know? From anywhere in Grand Rapids, it takes just 15 to 30 minutes for stormwater to get to a water body. The following slides show.
Implementing Committee Meeting May 15 th, 2014 New Braunfels MS4 program and the HCP 1.
What is NPDES? “National Pollutant Discharge Elimination System”
MS4 Stormwater Permit Program and Great Bay. Brief Overview – EPA’s Stormwater Management Program Clean Water Act – NPDES Stormwater amendments.
Legislative Changes Affecting Water Quality at a Local Level October 2011 Robert Kollinger, P.E. Water Resources Manager Polk County Parks and Natural.
Utah Pollutant Discharge Elimination System (UPDES) Utah Sewer Management Program (USMP)
When It Rains, It Drains An Overview of Pennsylvania’s New Storm Water Management Program.
RIPDES Storm Water Program: Municipal Separate Storm Sewer Systems (MS4s)
Upper Providence Township Stormwater Management MS4 Program.
When It Rains, It Drains An Overview of Our Community’s New Storm Water Management Program.
Environmental Harm Urban stormwater frequently contains litter, oil, chemicals, toxic metals, bacteria, and excess nutrients, like nitrogen and phosphorous.
Austin Peay State University Stormwater Program Kristen Spicer, Ph.D.
Stormwater, Wellhead Protection and Drainage Issues Public Hearing.
When It Rains, It Drains An Overview of the Hempfield Township’s New Storm Water Management Program.
Upper Merion Township’s New Storm Water Management Program
When It Rains, It Drains An Overview: The Lower Providence Township Storm Water Management Program.
Ferguson Township Municipal Separate Storm Sewer System (MS4) Stormwater Management Program (Our MS4 Story) April 6, 2015 Board of Supervisors Meeting.
Modifications to the Storm Water Ordinance The City Municipal Separate Storm Sewer System (MS4) drains rainwater and all runoff into natural streams. EPA’s.
NPDES Phase II Storm Water Regulations: WHAT MUNICIPAL GOVERNMENTS NEED TO KNOW.
{Your District Name Here} District Small MS4/Municipal Storm Water Update {Date Here}
SLIDE 1 Sustainable Stormwater Management May 6, 2015 Blue Highways: Transportation and Stormwater Management in Virginia Ginny Snead, PE Richmond Office.
Storm Water Pollution Prevention Training
NPDES Stormwater and the Town of Wrightsville Beach.
THE COST AND LEVEL OF SERVIC E PRESENTED BY: COURTNEY REICH, AICP ECOLOGICAL PLANNING GROUP Stormwater Management Programs for Local Governments.
Municipal St rm Water Program. Storm Water Programs Industrial –bus maintenance yards Construction –addition of a gym Municipal.
January 6,  INTRODUCTION  BACKGROUND  SUMMARY  QUESTIONS  SUPPLEMENTAL INFORMATION ◦ PROPOSED BUDGETS, LEVIES AND CIRCUIT BREAKER 2.
Creating a Storm Water Pollution Prevention Plan For Construction Activities.
Response to Comments Workshop Presented by: Eric Beck, P.E. RIDEM July 24, 2003 Developed by: Laura Stephenson, Greg Goblick, Margarita Chatterton.
New Stormwater Regulations “C.3” Provisions in effect Feb. 15, 2005.
Integrity ♦ Innovation ♦ Accountability ♦ Commitment to Excellence ♦ Teamwork City of Southlake Storm Water Management Plan Christi Upton
REGULATORY REQUIREMENTS FOR STORMWATER MANAGEMENT Coastal Stormwater Supplement Training.
Department of Public Works NPDES Low Impact Development and Green Streets Resolutions City Council August 17, 2015.
Introduction to MS4 Stormwater Requirements (2009)
Introduction to Storm Water Phase II Pennsylvania Department of Environmental Protection.
Page 1 Storm Water Program Development (MS4) Montana League of Cities and Towns October 7 and 8, 2015 by Vern Heisler, P.E. Deputy Public Works Director.
Storm Water: Federal Enforcement and Compliance for Phase II MS4.
Why are we here today? To discuss the challenges we face in meeting NPDES Phase II minimum requirements for stormwater control. The NPDES program requires.
Overview of Montana’s Stormwater Regulatory Program.
Construction & Post-Construction Stormwater Ordinance City of Wenatchee, Public Works Department Jessica Shaw, Environmental Manager.
MDOT Storm Water Management Plan Module 2: Best Management Practices
N.P.D.E.S. PHASE II Virginia Beach. Local Condition AREA 312 SQUARE MILES CHESAPEAKE BAY 98 SQUARE MILES WATERSHED SOUTHERN 209 SQUARE MILES WATERSHED.
An Overview of our Community’s Stormwater Management Program
New Development and Significant Development 12/21/20151 New Development & Significant Redevelopment.
1 Module 1: Refresh Your Perspective on the Storm Drain System Stormwater System Maintenance: A 4-Part Workshop Series.
Kentucky Growth Readiness for Water Quality Does your water quality matter?
0 Montana Department of Environmental Quality Permitting and Compliance Division Water Protection Bureau Water Quality Discharge Permits Section Storm.
 The Illinois Environmental Protection Act is silent with regard to storm water.  Illinois EPA’s authority to deal with storm water derives from delegated.
Program Overview Town of Wrightsville Beach Public Works Department Stormwater Services.
What is Stormwater? Direct result of rainfall Recharges groundwater by infiltration Produces “runoff” (excess rainfall after infiltration) May be concentrated.
1. Wolfeboro’s Tool Kit Implemented tools for water quality protection Municipal Watershed District Ground Water Protection Overlay District Steep Slope.
Williamsburg’s Local Strategies to meet the ChesBay TMDL March 2012 Chesapeake Bay Watershed Virginia Maryland Pennsylvania New York Delaware West Virginia.
North Hennepin Community College MS4 Plan October 24, 2014.
Storm Water Management at MSU Ruth Kline-Robach Michigan State University Institute of Water Research Dept. of CARRS.
Why the Need for Increased Stormwater Funding? Citizens expect a higher level of protection from flooding Increased development.
Hampden Township Stormwater Management Program
Presentation to the Livingston City Council on the Phase II MS4 Permit
Regulatory Requirements Background
Summit County MS4.
Sacramento County Stormwater Quality Program
Stormwater Management Program
MS4 OVERVIEW 2015.
MS4 = Municipal Separated Storm Sewer System
Sacramento County Stormwater Quality Program
Rule 5/6/13 Conversion to General Permits
Presentation transcript:

2009 City of Bozeman Storm Water Update Dustin Johnson, P.E. Project Engineer City of Bozeman

2009 City of Bozeman Storm Water management update Design and Development Phase II and related expenses Storm Water Masterplan Storm Water Sampling

City of Bozeman Review Process Preliminary Design City Board Review – DRC, DRB, Planning Board, City Commission, etc. Infrastructure Review – City Engineering, DEQ Approval

Review Criteria Zoning Growth Plan Transportation

Engineering Review

Why are Storm Water facilities necessary? Flood Control Channel Stability of Creeks and Rivers Water Quality Potential Re-use of rain water

Storm water Engineering Pipe sizing and types Basin Location Basin sizing Slope requirements Calculation formats COB Runoff Coefficients Rainfall Curves Floodplain Regulations

Types of Storage/Treatment Facilities Retention Basins Designed to retain all runoff from a 10 year, 2 hour storm. Detention Basins Release water through controlled outlet structure, at no greater than pre-development runoff.

Retention Basins Q = CiA (cfs) V = 7200Q (cubic feet) Calculations based on the Rational Formula Q = CiA (cfs) V = 7200Q (cubic feet) i for Bozeman 10 year, 2 hour storm always = .41 in/hr

Detention Basins More complicated than Retention Basins Determine Tc, i @ Tc, and Q of pre-development runoff Determine Tc and i @ Tc of post-development runoff Determine maximum storage volume at various storm lengths for 10 year storm Determine size of discharge structure

In a perfect world…

Other considerations Depth of groundwater Other surrounding infrastructure Historic Drainage Patterns Limited Space Facilities not built to specifications Aesthetics Easements

When things start to go wrong…

Local Examples of Storm Water Management The Good

Local Examples of Storm Water Management The Bad

NPDES Phase II National Pollutant Discharge Elimination System Federal EPA regulated by Montana Department of Environmental Quality The purpose is to reduce or eliminate potential storm water pollutants from reaching water resources such as streams and lakes.

Who is permitted for Phase II in Bozeman? Continued partnership with MSU and MDT as co-permittees on MS4 Phase II.

Storm Water Hierarchy

Montana Cities implementing Phase II Billings & Yellowstone County Missoula & Missoula County Great Falls and Cascade County Butte Bozeman Helena Kalispell

Phase II 6 Minimum Control Measures (MCM) Public Education and Outreach Public Involvement/Participation Illicit Discharge Detection and Elimination Construction Site Runoff Control Post Construction Storm Water Management Pollution Prevention and BMP’s

Total Minimum 5 year Direct Costs for Phase II Total cost of $424,000 for 5 years

Summary of Direct costs for Storm Water Maintenance Activity Cost Clean Storm Sewer Facilities and Ditches $30,731 Repair Storm Sewer System $8,860 Leaf Cleanup $32,650 Street Sweeping $108,624 Miscellaneous $9,739 TOTAL $190,604 All costs based on 2005 estimates taken from COB Storm Water Masterplan

Estimated Total Future Storm Water Costs Item Cost Direct Operational Cost $191,000 Phase II Implementation $100,000 Capital Improvements $200,000 Indirect Costs (20% of total) $98,000 Total Cost per Year $589,000 All costs based on 2005 estimates taken from COB Storm Water Masterplan

Where are we today with Phase II Completed year four of a five year permit Required semi-annual storm water sampling Continue working with our co-permitees MSU and MDT New engineering standards Updated public information Completed Storm Water Masterplan

Storm Water Masterplan Adopted by City Commission late 2008 Is available for public review and use

Masterplan Breakdown Existing System Inventory System Analysis Policy Evaluation NPDES Phase II Permit Compliance Financial Management Evaluation Recommended Plan

Significant Recommendations of the Masterplan Move forward in establishing funding source for storm water. Establish uniform approach to development submittals. Continue relying on development-based storm water management until Phase II guidelines are more advanced.

Storm Water Sampling Started sampling storm water in Bozeman in 2007. As with all Cities in Montana, the results were mixed. Too early to get anything definitive from one sampling.

Most Recent Sample Results (Taken 11/13/08) Permit Limits Above Kagy Below Tamarack Storm Langhor Storm Tamarack (mg/l) TSS 125 12 13 60 322 Oil and Grease 10 ND 4.5 14 Nitrogen (Total) 2 0.8 Phosphorus 0.41 0.09 0.07 0.4 0.91 Zinc 0.21 0.01 0.08 0.18 Lead 0.165 0.03 Copper 0.04 COD 80 11 86 27

Nutrients in Storm water vs. Waste water effluent Total Nitrogen Total Phosphorus Estimated current effluent removal Quality for WWTP 9 mg/L 3 mg/L Estimated effluent removal Quality for WRF expansion (phase I) 7.5 mg/L 1 mg/L Sample taken 7/25/08 at storm drain in Tamarack 1.4 mg/L 2.14 mg/L Sample taken 7/25/08 in Boz. Creek upstream from Kagy 0.6 mg/L 0.07 mg/L Sample taken 11/13/08 in Boz. Creek below Tamarack 0.8 mg/L

Going forward from here… Actively working with MSU and other organizations to explore new options regarding storm water and storm water education.

Questions/Discussion