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HomeMy WebLinkAbout3 CURRENTS - MISC'3WO50:376 ` NATIONAL. POLLUTANT GISCHARGG ELIMINATION SYSTEM NPDES) NOTES Notes must be shown as worded, on the title sheet of the plan I. In the case of emergency, call (j at Work Phone #,1��'c��5'e7�-Yc� or Home Phone /!L 2, Sediment from areas disturbed by construction shall be retained on site using structural controls to the maximum extent practicable. 3. Stockpiles of soil shall be properly contained to minimize sediment transport from the $ite to streets, drainage facilities or adjacent properties via runoff, vehicle tacking, or wind. 4. Appropriate BMP's for construction -related materials, wastes, spills shall be implemented to minimize transport from the site to streets, drainage facilities, or adjoining properties by wind or runoff. 5. Runoff from equipment and vehicle washing shall be contained at construction sites unless treated to reduce or remove sediment and other pollutants. ' 6. All construction contractor and subcontractor personnel are to be made aware or the required best management practices and good housekeeping measures for the project site and any associated construction staging areas. 7. At the end of each clay of construction activity all construction debris and waste materials shall be collected and properly disposed in trash or recycle bins. B. Construction sites shall be maintained in such a condition that an anticipated storm does not carry wastes or pollutants off the site. Discharges of material other than stormwater only when necessary for performance and completion of construction practices and where they do not: cause or contribute to a violation of any water quality standard; cause or threaten to cause pollution, contamination, or nuisance; or contain a hazardous substance in a quantity reportable under Federal Regulations 40 C1=R Parts 117 and 302. 9. Potential pollutants include but are not limited to: solid or liquid chemical spills; wastes from paints, stains, sealants, glues, limes, pesticides, herbicides, wood preservatives and solvents; asbestos fibers, paint flakes or, stucco fragments; fuels, oils, lubricants, and hydraulic, radiator or battery fluids; fertilizers, vehicle/equipment wash water and concrete wash water; concrete, detergent or floatable wastes; wastes from any engine/equipment steam cleaning or chemical degreasing and superchlorinated potable water line flushing. During construction, pen•nittee shall dispose of such materials in a specified and controlled temporary area on -site, physically separated from potential stormwater runoff, with ultimate disposal in accordance with local, state and federal requirements. 10. Dewatering of contaminated groundwater, or discharging contaminated soils via surface erosion is prohibited. Dewatering of non -contaminated groundwater requires a National Pollutant Discharge Elimination System Permit from the respective State Regional Water Quality Control Board. '11. Graded areas on the permitted area perimeter must drain away from the face of slopes at the conclusion of each working day, Drainage is to be directed toward desalting facilities. -12. The pern'rittee and contractor shall be responsible and shall take necessary precautions to prevent public trespass onto areas where impounded water creates a hazardous condition. 13. The permittee and contractor shall inspect the erosion control work and insure that the work is in accordance with the approved plans. 14. The permittee shall notify all general contractors, subcontractors, material suppliers, lessees, and property owners: that dumping of chemicals into the storm drain system or the watershed is prohibited. 15. Equipment and workers for emergency work shall be made available at all times during the rainy season. Necessary materials shall be available on site and stockpiled at convenient locations to facilitate rapid construction of temporary devices when rain is imminent. '16. All removable erosion protective devices shall be in place at the end of each working day when the 5-Day Fain Probability Forecast exceeds 40%. f'age 3 of 5 1/5/20O6 9:06 AM SWQSO: 7(.:i 17. Sediments from areas disturbed by construction shall be retained on site using an effective combination of erosion and sediment controls to the maximum extent practicable, and stockpiles of soil shall be properly containted to minimize sediment transport from the site to streets, drainage facilities of adjacent properties via runoff, vehicle tracking, or wind. 18. Appropriate BIVIOs for construction -related materials, wastes, spills or residues shall be implemented and retained on site to minimize transport from the site to streets, drainage facilities, or adjoining property by wind or runoff. Page 4 of 5 1/5/2006 9:06 AM • I is fi.t'N a a ste MGM c'". n a e.r Mlt 9 Wm A A. -=� ,'vM,,,., •. MIN STAKE (TYP) 2„ s, Vn • DIA. �� ;,,• .' STEEL WIRE' STAPLE DETAIL m "���_' :•• 10 MIL- STRAW BALE •. . TYP ) PLASTIC LINING P L•A N 43L„r XOOD" NOT TO SCALE PAINTED WHITE a=:�>`•=i' TYPE "ABOVE GRADE" WITH STRAW BALES CONCRETE ° BLACK LETTERS s HEIGHT • wasxa SC'EWSG • � R4 3 WOOD POST 3"X3"X8' CONCRETE WASHOUT SIGN DETAIL (OR EQUIVALENT) — STAPLES (2 PER BALE) 10 VIL BINDING WIRE PLASTIC LINING STRAW BALE WOOD OR NOTES NATIVE MATERIAL METAL STAKES' ` (OFTIONAL) (2 PER BALE) 1. ACTUAL LAYOUT DETERMINED IN FIELD. . _ SECTION B-f3 CONCRETE WASHOUT NOT TO SCALE •2' HA wiTHIhI1G� 30 FT. OF THE TEMPORARY _ CONCRETE.-WASH.OUT.-_FAQ.IU.,TY, , January 7.003 Caullbrnia smorzmnrater BMA Handbook 7 of 7 N S SE-8 S u4 `o w r w c w �• en o _ • ,qLq y v3 Oa, = •O N J1 (L Q+ w w O O Lcl u w �' © • � cn rn CL < a o Q N a' a (� CLS 41 cm CM �i G7 Z upw 0 o E m `o to tl/ m E E E m 'O N d C d1 T Lw w ` 7 w L 0 p aro°1 O E L `o ,_., �� as m .° C o cm ° a caa (Alc o v m° o E a c o'= c U = a o cn r 61 " En a O • O. Z .- ly v'9 a{ ill to Imo. 41 aQpi$ O w • O ' Cn O , a C O N ,arivary 2003 Cafi mia Sbormwaber BMP Handbook Coon 5 of 6 Description antt Purpbse • TreveAt or reduce the •discharge, of pollutants to,stormwgter from concrete waste by canductingwashout offgite; performing onsi:te:'washout in a•desigaated area; and t7•�•i*+ employee and subcontractors. Suitable Applications Concrete waste management procedures and practices are ,implemented on constsucdon: projects•where: w Concrete is used as a construction. material or where concrete dust and debris result form, demolition activities w Slarries containing por hand cement concrete (PCC, or asphalt concrete (AC) are generated, such as from saw cutting,. coring; grinding, grooving, and hydro -concrete demolition w Concrete trucks and other concrete -coated equipment are washed onsite r r� :� . ■ r I ar 6-14 w See also NS-S, Vehicle and Equipment Cleaning Objectives EC Erosion Control SE Sediment Control TO Traddng Control WE Wind Erosion Control NS Non-Sformwater Management Contmi WM Waste Marlagemett and Materials PolluGon.ConW Legend: ,f Primary. objective ✓ Secondary objective Targeted Constituents . sediment'. Nutrients Trash Metals Bacte4a Oil and Grease Organics , Potential Alternatives None Limitations m O fsrte washout of concrete wastes may not always be poss1k Storartnartcr January 2003 C Wbmia 5tx)rrrn jWw SMP Handbook