Water Quality Trading in the Lower Delaware River Basin: A ...

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Table 2-13: Cost of Urban BMPs EPA 1999) BMP Type Typical Construction Capital Cost ($/ cf of water) Retention Basin 0.50-1.00
• The Cost to benefit ratios of BMPs are site specific. Local conditions not only affect the pollutant removal capability of a BMP but also the construction and operating cost. • Some BMPs, especially non structural BMPs, are difficult to monitor and there are no widely-accepted definitions or techniques for evaluating their performance. Therefore, site specific monitoring plans are often needed and appropriate. • The effectiveness of BMP’s that rely on reducing pollutant exports will decrease with time. Therefore, specific time limits need to be established when BMP’s are used for trading. An additional issue that arises with NPS trades is whether the credit is given for the input or export of the pollutant (Shortle and Ambler 2001). With input credits, regulators assign a credit value for practices that reduce or eliminate the application (e.g. inputs) of chemicals, fertilizers, of other pollutants. Export credits are based on the reduction in pollutants leaving a specific area. The administration, monitoring, and enforcement for input credits is relatively straight forward. The evaluation of export credits relies on quantifying the transport of pollution from the landscape. Moreover, calculating the change in pollution inputs from a new wetland, a new traffic pattern, or land cover change is more difficult than quantifying the reduction of pollutant load by reducing the application of a chemical, fertilizer, flow, etc. Therefore, the value of input or export credits is case specific and will have to be evaluated for each situation. Table 2-15 provides a list of useful websites that contains information about BMPs. Table 2-15: Web Sites for Information on Best Management Practices Description Site Address ASCE BMP Database http://www.bmpdatabase.org MD Stormwater Design http://www.mde.state.md.us/programs/waterprograms/ Manual sedimentandstormwater/stormwater_design/index.asp EPA Management Measures for NPS http://www.epa.gov/owow/nps/urbanmn/index.html EPA Summary of Urban Storm Water BMPs http://www.epa.gov/ost/stormwater EPA Urban Stormwater http://www.epa.gov/waterscience/stormwater/montcomple BMP Monitoring te.pdf PA Stormwater BMP http://www.dep.state.pa.us/deq/subject/advcoun/stormwat Manual er/stormwatercomm.htm Villanova Urban Stormwater Partnership http://www.villanova.edu/vusp 39
Page 1 and 2: Water Quality Trading in the Lower
Page 3 and 4: wide pollutant reductions to meet T
Page 5 and 6: Chapter 4. Administration and Manag
Page 7 and 8: Historical Development of Water Qua
Page 9 and 10: mechanisms to achieve the cap. The
Page 11 and 12: Figure 1-1: Schematic of the develo
Page 13 and 14: other discharges. The resulting tra
Page 15 and 16: Existing Water Quality Trading Syst
Page 17 and 18: Strengths and Weaknesses of Existin
Page 19 and 20: participants ensure that the market
Page 21 and 22: Nash, Jonathon Remy and Richard L.
Page 23 and 24: Chapter 2 Technical Aspects of Wate
Page 25 and 26: analysis and effort. The goal of th
Page 27 and 28: Site Location Ratio - The ratio tha
Page 29 and 30: impaired segment at PSA with the ot
Page 31 and 32: mechanism. The Lower Boise River pr
Page 33 and 34: Table 2-7: Trading Ratios for Exist
Page 35 and 36: Best Management Practices Descripti
Page 37: Table 2-11: Typical Pollutant Remov
Page 41 and 42: Name Table 2-16: Compliance for Exi
Page 43 and 44: Summary of Chapter 2 The modeling f
Page 45 and 46: http://www.mde.state.md.us/assets/d
Page 47 and 48: Chapter 3 Water Quality Issues Rele
Page 49 and 50: the dominant focus pollutant in bot
Page 51 and 52: most of the TMDL’s. It is also co
Page 53 and 54: Table 3-3 - Land Use Summary of the
Page 55 and 56: Figure 3-4: Location of NPDES Disch
Page 57 and 58: Table 3-4. Christina TMDL target li
Page 59 and 60: discharges are added one-at-a-time
Page 61 and 62: should be considered. Adequate dam
Page 63 and 64: Appendix 1: Comparison of EPA spons
Page 65 and 66: more complex trading programs, gove
Page 67 and 68: conservation districts, agricultura
Page 69 and 70: Program. The review also found that
Page 71 and 72: management organizations. Each of t
Page 73 and 74: • Scale--Is the geographic area c
Page 75 and 76: There are many other organizations
Page 77 and 78: opportunities for trading. Existing
Page 79 and 80: Chapter 5 Conclusions and Recommend
Page 81 and 82: • The NPDES permit renewal proces
Page 83 and 84: • It is recommended that normativ
Page 85 and 86: References PRedICT User Guide, 2003

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