Directors' Guide to Storm Water Quality


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Directors' Guide to Storm Water Quality

  1. 1. Adam Frey Storm Water Solutions, LP
  2. 3. June 22, 1969
  3. 4. <ul><li>The CWA established the NPDES along with two major goals: </li></ul><ul><ul><li>Water quality that is both “fishable” and “swimmable” by 1983 </li></ul></ul><ul><ul><li>Zero discharge of pollutants by 1985 </li></ul></ul><ul><li>Regulated combined sewer systems, industrial waste water, and animal feed lots. </li></ul><ul><li>The EPA originally exempted storm water from regulation by defining it as non-point source pollution. </li></ul>
  4. 5. <ul><li>By 1987, the CWA was amended to define storm water as a point source pollution. </li></ul><ul><li>Urban runoff is considered the largest source of storm water pollution. </li></ul><ul><li>The current EPA permitting programs do not distinguish untreated sewage from urban storm water runoff. </li></ul>
  5. 6. <ul><li>Common Pollutants in Waste Water </li></ul><ul><li>Common Pollutants in Storm Water </li></ul><ul><li>Nutrients </li></ul><ul><li>Bacteria/Pathogens </li></ul><ul><ul><li>E-Coli </li></ul></ul><ul><li>Emulsions </li></ul><ul><ul><li>Hair Colorant, Adhesive… </li></ul></ul><ul><li>Toxins </li></ul><ul><ul><li>Poisons, Medicine… </li></ul></ul><ul><li>Inorganics </li></ul><ul><ul><li>Sand, Grit… </li></ul></ul><ul><li>Nutrients </li></ul><ul><li>Bacteria/Pathogens </li></ul><ul><ul><li>E-Coli </li></ul></ul><ul><li>Emulsions </li></ul><ul><ul><li>Paint, Oils… </li></ul></ul><ul><li>Toxins </li></ul><ul><ul><li>Pesticides, Herbicides… </li></ul></ul><ul><li>Inorganics </li></ul><ul><ul><li>Sediment, Metals… </li></ul></ul>
  6. 7. <ul><li>Waste Water Outfall </li></ul><ul><li>Storm Water Outfall </li></ul>
  7. 8. <ul><li>Phase I permit program began in 1990. </li></ul><ul><li>Regulated “Medium and Large” municipal entities that own storm water conveyance systems (populations of 100,000+). </li></ul><ul><li>Each Phase I entity was required to obtain an individual permit from the EPA – custom written for their local pollution issues. </li></ul><ul><li>Had to address municipally owned facilities as well as private business. </li></ul>
  8. 9. <ul><li>Effective October 1, 1998, the EPA issued a NPDES storm water permit to the City of Houston, Harris County, Harris County Flood Control District (HCFCD) and Texas Department of Transportation (TxDOT) as co-permittees. </li></ul><ul><li>This coalition has come to be known as the Joint Task Force (JTF). </li></ul>
  9. 10. <ul><li>Implementation and maintenance of best management practices (both structural and non-structural). </li></ul><ul><li>Prohibit illegal dumping and disposal of hazardous chemicals. </li></ul><ul><li>Monitor and analyze storm water. </li></ul><ul><li>Regulate industrial sites, construction sites, and urban runoff </li></ul><ul><li>Educate the public about storm water pollution. </li></ul>
  10. 15. <ul><li>Placed stricter water quality standards for outfalls constructed after 2003. </li></ul><ul><li>Required drainage facilities to have storm water quality structural controls installed to reduce floatables. </li></ul><ul><li>Required the implementation of a Storm Water Quality Management Plan. </li></ul><ul><li>The JTF is the regulator – forcing the public’s compliance keeps the JTF compliant. </li></ul>
  11. 21. <ul><li>EPA designated the State of Texas as an authorized permitting authority in 1998. </li></ul><ul><li>All permitting authorities were initially required to implement the Phase II Program by December 2002. </li></ul><ul><li>Multiple groups in Texas sued the EPA in an effort to halt the Phase II permitting program. The U.S. Supreme Court ultimately sided with the EPA in June 2004. </li></ul>
  12. 22. <ul><li>The TCEQ issued General Permit #TXR040000 in August 2007. </li></ul><ul><li>It is a 5 year permit and will be up for renewal in August 2012. </li></ul><ul><li>It requires the implementation of 6 minimum control measures plus 1 optional. </li></ul>
  13. 34. <ul><li>The EPA is requiring permitting authorities to set an effluent limit on construction sites of 280 NTUs. </li></ul><ul><li>The regulations will effect Texas in 2013 when the TCEQ renews the CGP (TXR150000). </li></ul><ul><li>For all rain events less than a 2 year, 24 hour event (~5 inches in Houston). </li></ul>
  14. 36. <ul><li>Any district construction project over 10 acres or any project part of a larger plan of development will be subject to these regulations (treatment plant expansion, park improvements, etc). </li></ul><ul><li>Displaced sediment (the source of turbidity) causes damage that requires expensive rehabilitation to District drainage facilities. </li></ul>
  15. 38. <ul><li>Total Maximum Daily Loads (TMDL) are budgets for pollution. They define an environmental target by determining the extent to which a certain pollutant must be reduced. </li></ul><ul><li>Districts discharging into a water body with an established TMDL will be required to comply with an Implementation Plan. </li></ul><ul><li>TMDLs require regular monitoring and may require treatment of runoff. </li></ul>
  16. 39. <ul><li>Notable TMDLs in Place </li></ul><ul><ul><li>Houston Ship Channel (Nickel) – 2001 </li></ul></ul><ul><ul><li>Lake Austin (DO) - 2001 </li></ul></ul><ul><li>Notable TMDLs development in progress: </li></ul><ul><ul><li>Upper Oyster Creek (Bacteria) </li></ul></ul><ul><ul><li>Buffalo and Whiteoak Bayous (Bacteria) </li></ul></ul><ul><ul><li>Upper and Lower San Antonio River (Bacteria) </li></ul></ul><ul><ul><li>Upper Gulf Coast Oyster Waters (Bacteria) </li></ul></ul>
  17. 40. <ul><li>The EPA is collecting information through a required questionnaire to be completed by: </li></ul><ul><ul><li>Owners and Developers of Construction Projects </li></ul></ul><ul><ul><li>NPDES Permitting Authorities (i.e. TCEQ) </li></ul></ul><ul><ul><li>Regulated and Non-Regulated MS4 operators </li></ul></ul><ul><ul><li>State and Local DOTs </li></ul></ul><ul><li>The financial records and technical data reported in the questionnaire will shape future rule making. </li></ul>
  18. 41. <ul><li>In 2008, The National Research Council released a report calling for fundamental changes to the current NPDES program. </li></ul><ul><li>The report finds: </li></ul><ul><ul><li>EPA does not adequately account for cumulative contributions of multiple sources of pollutants from the same watershed, because discharges are permitted on an individual basis; </li></ul></ul><ul><ul><li>EPA should focus less on chemical pollutants found in storm water, and more on how urban settings increase the volume of water that enters nearby waterways. </li></ul></ul>
  19. 42. <ul><li>Would eliminate individual permits. </li></ul><ul><li>Many Phase I and Phase II municipalities overlap watershed boundaries with differing water quality issues. </li></ul><ul><li>River authorities? </li></ul><ul><li>Water Masters? </li></ul><ul><li>Regional Water Authorities? </li></ul><ul><li>Storm Water Utilities? </li></ul>
  20. 44. <ul><li>By reducing the volume of runoff, pollutant loading will be reduced. </li></ul><ul><li>EPA is exploring options to reduce urban runoff volume. </li></ul><ul><li>Low Impact Development? </li></ul><ul><li>Greater retention standards? </li></ul><ul><li>Rooftop gardens? </li></ul><ul><li>Permeable concrete? </li></ul><ul><li>Green Infrastructure? </li></ul>
  21. 46. <ul><li>Adam Frey </li></ul><ul><li>MS4 Compliance Manager </li></ul><ul><li>12200-A Duncan Road (281) 587-5950 Office </li></ul><ul><li>Houston, Texas 77066 (281) 587-5999 Fax </li></ul><ul><li>[email_address] (832) 250-0989 Cell </li></ul>