Greg Gearheart

561 views

Published on

Published in: Technology, Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
561
On SlideShare
0
From Embeds
0
Number of Embeds
16
Actions
Shares
0
Downloads
1
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Greg Gearheart

  1. 1. regulating our way to better creeks and streams <ul><ul><li>greg gearheart </li></ul></ul><ul><ul><li>stormwater program / swrcb </li></ul></ul>
  2. 2. Image from John Hannon, USDOI/BOR
  3. 3. our mission ... is to preserve and enhance the quality of ca’s water resources, and ensure their proper allocation and efficient use for the benefit of present and future generations.
  4. 7. growth ...happens
  5. 8. Lodi
  6. 9. growth ... is heading for the parts of our state where headwater, ephemeral, and other “functionally significant” waters lie waiting...
  7. 10. but growth is not to blame.
  8. 11. I blame it on the rain.
  9. 15. Hydrologic Cycle From Lake (2004)
  10. 16. we focus on hydromodification (ounce of prevention)
  11. 17. hydromodification <ul><li>alteration of the hydrologic characteristics of waters, which in turn could cause degradation of water resources. </li></ul>
  12. 18. After Lane (1955) as cited in Rosgen (1996)
  13. 19. Increase in Bankfull Discharge Runoff Time Pre-Development From Haltiner (2006) <ul><li>Urbanization tends to increase storm water runoff: </li></ul><ul><li>peak flows </li></ul><ul><li>volume </li></ul><ul><li>frequency </li></ul>Post-Develop.
  14. 20. hydromod ... can cause problems
  15. 23. hardscaping our streams ... still happens?
  16. 25. 1950's – Sacramento Area 2000's – Sacramento Area
  17. 27. replumbing watersheds and floodplains
  18. 29. but we ... might have forgotten about the sediment side of the scales...
  19. 31. and what about ... the watershed context of the project?
  20. 33. and what about the floodplain?
  21. 35. water boards nuts and bolts <ul><li>our regulatory actions (e.g., npdes permits, cwa 401 certs, wdrs, enforcement, etc.) rely on our water quality (wq) standards: </li></ul><ul><ul><li>water quality standard is either </li></ul></ul><ul><ul><ul><li>beneficial use(s) + objectives ; or </li></ul></ul></ul><ul><ul><ul><li>water boards may “choose to prevent any degradation” to high quality waters = antidegradation </li></ul></ul></ul>
  22. 36. beneficial uses used to protect california wetlands & streams <ul><li>AGR – agricultural supply </li></ul><ul><li>FLD – flood peak attenuation/flood water storage </li></ul><ul><li>FRSH – freshwater replenishment </li></ul><ul><li>GWR – groundwater recharge </li></ul><ul><li>MAR – marine habitat </li></ul><ul><li>MUN – municipal and domestic supply </li></ul><ul><li>RARE – preservation of rare and endangered species </li></ul><ul><li>REC-1 – water contact recreation </li></ul><ul><li>REC-2 – non-water contact recreation </li></ul><ul><li>SHELL – shellfish harvesting </li></ul><ul><li>SPAWN – fish spawning </li></ul><ul><li>WARM – warm freshwater habitat </li></ul><ul><li>WILD – wildlife habitat </li></ul><ul><li>WQE – water quality enhancement </li></ul>
  23. 37. beneficial uses and streams <ul><li>bus are: </li></ul><ul><ul><li>designated in the basin plans to a specific waterbody at a specific location </li></ul></ul><ul><ul><li>are not easily translated to some key wetland/stream functions and values </li></ul></ul><ul><ul><li>frequently it takes a suite of BUs to cover “wetland functions and values” (often includes gaps and overlaps)‏ </li></ul></ul>
  24. 38. functional framework: regulatory tools <ul><li>landscape / watershed tool(s): </li></ul><ul><ul><li>storm water permits </li></ul></ul><ul><ul><li>ceqa ? </li></ul></ul><ul><li>waterbody tool(s): </li></ul><ul><ul><li>cwa 401 certifications </li></ul></ul><ul><ul><li>waste discharge requirements </li></ul></ul><ul><ul><li>waivers </li></ul></ul><ul><li>hybrid tools </li></ul><ul><ul><li>ms4 permits – gets at “local governments” and their processes </li></ul></ul>
  25. 39. Low Impact Development
  26. 40. Image from John Hannon, USDOI/BOR greg gearheart 916-341-5892 [email_address]

×