Town Engineers Wear Many Hats, a Small Local Government Perspective on Water Resource Management

Transcription

1 Town Engineers Wear Many Hats, a Small Local Government Perspective on Water Resource Management P R E S E N T E D B Y Holly E. Miller, PE, CPESC, CFM Assistant Town Engineer Wake Forest Background Population growth-12,000 to over 32,000 in 10 years 2006 merger with City of Raleigh 2006 E&SC Delegation 2006 NPDES Phase II d Impaired Stream- Smith Creek 1

2 Town of Wake Forest Staff Over 200 employees Engineering Department 3 Professional Engineers 4 Construction Inspectors Engineering Department Duties Streets Rehab Projects Stormwater Erosion and Sediment Control Construction Administration Grants 2

3 Engineering Department Duties, Continued Stream Restoration Greenway Construction Environmental Education Other Duties as required! Water Quality Programs E&SC Local Program NPDES Phase II Water Supply Watershed (WS II)- Wake Forest Reservoir Falls Lake Watershed- Horse Creek Neuse River Riparian Buffer Protection Floodplain Protection Adopt a Stream/319 Grant 3

4 Richland Creek at Old Mill Stream Greenway Smith Creek at Burlington Mills Greenway E&SC Program ½ acre permit requirement construction entrance and silt fence required for all lots Multiple violations caught over the past 8 years NPDES Phase II Program 1 acre permit requirement Q pre = Q post 4

5 Wake Forest Reservoir Protection Water Supply Watershed II Currently under COR jurisdiction Used as back up only- 2.0 MGD Clear well onsite TOWF to take back in foot buffer No grading/development within drainage area City of Raleigh Merger Merger agreement in 2006 Water and Sewer Some limits on capacity Sewer interceptor upgrades Max. wastewater 3.4 MGD per month + 4% per year after 2010 = 3.96 MGD Max water usage 4.91 MGD + 4% per year after 2010 = 5.70 MGD 5

6 Neuse River Riparian Buffer Rule 50 foot buffer from top of bank on each side, 100 foot 100 foot tob buffers in Richland Creek Watershed Citizen Education Falls Lake Rule 25 year design storm for BMP s Horse Creek Watershed Floodplain Protection AE Zone Protection (100 year) X Zone Protection (500 year) No filling No grading No buildings/structures 6

7 Adopt a Stream Water Quality Monitoring DO, Phosphorus, Nitrogen, ph, Temp, Turbidity Stream Clean Ups Enhancement Projects Citizen Education Funding Sources 319 Grant 319 (h) grant- $100,000 SEEA EPA Mini Grant- $4,425 In Kind $27, to date $90,405 by 2016 Additional funds from budget 7

8 Adopt a Stream Program Adopt a Stream Grant Identified 20 monitoring stations Conduct water quality testing (volunteer based) Conduct aquatic insect counts- spring and fall Conduct stream cleanups- spring and fall Conduct Environmental Education Programs Buffers- replant trees and repair streams Stormwater BMP Education NC Museum of Science onsite programs Partnering Town of Rolesville Wake County Soil and Water Conservation District Franklin County Soil and Water Conservation District NC Cooperative Extension NCSU Watershed Steering Network Clean Water Education Partnership City of Raleigh 8

9 Monitoring Data Sampled for: DO, ppm Nitrogen, ppm Phosphorus, ppm ph Water Temperature, deg C Turbidity, ntu 70 samples to date, two illegal discharges Stream Enhancements Adding live stakes Removing invasive plant species Minor stream bank repair Buffer authorization Spring/Fall stream clean ups 9

10 Smith Creek Watershed 303d 2008: Reservoir Dam to Neuse River (5.8 miles) DWR Burlington Mills Rd. Bridge 2008 Fair Bioclassification Fair Fish Community Good-Fair Benthic Good Fish Community, Fair Benthic Good Fish Community, Fair Benthic Add l Benthos Sampling EPA Rapid Assessment July 2013 Spring sites- good-fair larger sample set 10

11 BMP Retrofits Retrofit wet detention to wetland Dry detention to bioretention Level spreader reconfigure Increase/improve BMP maintenance Summary Lots done but more work to do in 2014 School Environmental Education Community Service Projects BMP Retro Fits BMP Maintenance Stream Enhancements 11

12 Holly Miller Assistant Town Engineer 12