Industrial Storm Water Best Management Practices. Restoring, maintaining, and enhancing the quality of Oregon's water.

Transcription

1 Industrial Storm Water Best Management Practices Restoring, maintaining, and enhancing the quality of Oregon's water.

2 Catch Basin Sampling Device For use on catch basins which have discharge from more than one site

3 Diameter of Particle (mm) Settling Velocities of Sediment Particles in Water Order of Size Settling Velocity m/sec Time Required to Settle 1 meter (3.28 ft) 10 Gravel Seconds 2 Coarse Sand Seconds Seconds Seconds 0.3 * Seconds 0.2 * Seconds 0.15 Fine Sand Seconds Seconds Minutes Silt Hours E Hours E Hours E Hours E Hours Clay 4.5E Days E Days E Years Colloidal Particles 2.0E Years *Range of acceptable pore size (apparent opening size) for silt fence geotextiles. (Courtesy of HaloSource)

4 Particle Distribution

5 Sieve Designation Nominal Sieve Opening Standard Mesh inches mm Microns 2.00 mm No Sand 1.68 mm No mm No mm No mm No mm No SiltSack High Flow mm No mm No Sediment Fence mm No mm No SiltSack Regular mm No Flow mm No mm No mm No mm No DirtBag Style mm No DirtBag Style mm No mm No mm No mm No mm No mm No Silt mm No mm No

6

7 BMP No. 1 Turnings, Swarf, & Chips from Machining Operations

8 BMP No. 1 Continued

9 BMP No. 2 Welding Fume MIG (Wire Feed) = lb. of smoke/lb. of rod TIG = lb. of smoke/lb. of rod Oxy-Acetylene torch = lb. of smoke/lb. of rod Stick = lb. of smoke/lb. of rod Flux core = 0.02 lb. of smoke/lb. of rod

10 BMP No. 2 Welding Fume Electrostatic Precipitator

11 BMP No. 2 Welding Fume HEPPA Filtration

12 BMP No. 3 Dispensing or Storing Liquids

13 BMP No. 3 Continued

14 BMP No. 3 Continued

15 BMP No. 3 Continued

16 BMP No. 3 Continued

17 BMP No. 4 Containment of Aboveground Storage Tanks & Collection of Spills & Leaks

18 BMP No. 4 Continued

19 BMP No. 4 Continued

20 BMP No. 5 Parts Cleaning

21 BMP No. 6 Grease Purchase & Drum Disposal

22 BMP No. 7 Pressure Washing or Steam Cleaning of Vehicles, Machinery, Equipment, or Portable Temporary Secondary Containment

23 BMP No. 7 Continued

24 BMP No. 8 Settling Ponds

25 BMP No. 8 Continued Settling Ponds

26 Install Oil/Water Separators or Ultrafiltration Systems BMP No. 9 Steel, Vehicles, Machinery, Equipment, and Other Items That May Release Petroleum Hydrocarbons.

27 BMP No. 9 Continued Install Oil Belt Skimmer

28 BMP No. 9 Continued Total Suspended Solids Reduction 10%-42% Oil & Grease to < 10 mg/l Replace Standard Drain Catch Basin with Sediment/Oil Retention Type

29 BMP No. 9 Continued Catch Basin Filter System: a catch basin coupled with a sump and sediment traps. May also be used with an inlet device, prefiltering insert and screens (see other facilities and retrofit). The inserts consist of several filtering trays suspended from the inlet grate. Common filters are charcoal, wood fibers or fiberglass. TSS 22%, and Turbidity 38%

30 BMP No. 9 Continued Catch Basin Filter

31 BMP No. 10 Possible Reductions TDS 22.4% Turbidity 91.8% COD 70.4% Lead 44.9% Zinc 83.2% Copper 65.3% Oil & Grease 80.9% Total Phosphorus 44.9%

32 BMP No. 10 Continued Compost Filter

33 BMP No. 10 Continued Compost Filter

34 BMP No. 10 Continued Downspout Filter

35 BMP No. 11 Condensate Discharge from Compressed Air Systems Small Oil/Water Separator of Discharge Collection

36 BMP No. 12 Dust From Dust Collectors Covered and Sealed Drums or Collector Bins

37 BMP No. 12 Continued Dust From Dust Collectors

38 BMP No. 13 Alternatives to Chemical Treatment 1. Ultra Violet Light 2. Ozone Addition 3. Sand Filtration

39 BMP No. 13Continued Ozone Addition

40 BMP No. 14 High Copper, Lead, Zinc, and/or TSS

41 BMP No. 14 Continued EV Sweeper is capable of removing particles down to 2.5 microns with 99.4% efficiency.

42 BMP No. 14 Continued Periodic cleaning of pavement with a floor vacuum scrubber

43 BMP No. 14 Continued Periodic cleaning of pavement with a floor vacuum scrubber

44 BMP No. 15 Store batteries inside over containment pallets.

45 BMP No. 15 Continued Store batteries inside over containment pallets.

46 BMP No. 16 Wrecked vehicles should be drained of fluids before storing them outside.

47 BMP No. 16 Continued

48 BMP No. 16 Continued

49 BMP No. 17 Soda Blasting Dry Ice Blasting Stripping of metal or wood coated surfaces should be accomplished using alternatives to sand blasting such as Carbon Dioxide (Dry Ice) or Baking Soda as the blast media.

50 BMP No. 18 Brake Shoe and Clutch replacement should be accomplished using the OSHA suggest Wet Method or with the use of a HEPA filter type vacuum cleaner and the brakes and clutches should be stored out of the weather until they are properly disposed.

51 BMP No. 19 Employee Environmental Training

52 Housekeeping BMP No. 20

53 BMP No. 21 Lawn Care

54 Cover Dumpsters or place them under roof. BMP No. 22

55 BMP No. 22 Continued Cover Dumpsters or place them under roof.

56 BMP No. 23 TSS removal 420 µ + for regular flow (40 gal./min./ft. 2 )

57 BMP No. 23A GutterGator TM Mammal, Bird, Etc. Eliminator Curb Inlet Filter

58 BMP No. 23B Organic Bio-Defender Catch Basin Inlet Protection Organic Nutrient Reduction near 100% E-Coli increase significant

59 BMP No. 24 Equipment, Process, and Material Shelters

60 BMP No. 24 Continued Equipment, Process, and Material Shelters

61 BMP No. 24 Continued Equipment, Process, and Material Shelters

62 BMP No. 24 Continued Equipment, Process, and Material Covering

63 BMP No. 24 Continued Equipment, Process, and Material Covering

64 BMP No. 25 Ensure that areas likely to leak fluids have secondary containment

65 BMP No. 26 Diversion Berm

66 BMP No. 26 Continued Diversion Berm

67 BMP No. 26 Continued Diversion Berm

68 BMP No. 26 Continued Diversion Berm

69 BMP No. 27 Ensure that fifth wheel hitches are coated with Teflon or that the grease is covered when not in use.

70 BMP No. 27 Continued

71 BMP No. 28 Fueling areas should be bermed and roofed with adequate spill containment and absorption equipment on hand.

72 BMP No. 29 Install a grassy filter strip and ensure the stormwater passes through the strip in sheet flow. Vegetated Filter (buffer) strips are best used on sites with sheet runoff, such as parking lots, being in-adequate to deal with sediment. Vegetated filter strips can have an efficiency of remove up to 80 percent of suspended solids.

73 BMP No. 29 Continued

74 BMP No. 29 Continued Fought Co. 20 X40 Strip Roof Zinc Runoff Geometric Mean Reduction from 6.12 mg/l to 0.12 mg/l

75 BMP No. 29 Continued Porous Pavers

76 BMP No. 30 Constructed Wetland *Heavy metals = 40 to 80% *Phosphorus = 40 to 80% *Nitrogen = 40 to 60% *TSS = 70% *Nitrate = 65% *Ammonia = -43 *COD = 2 *Copper, Lead & Zinc = 80 to 95%

77 BMP No. 31 Bioswale TSS = 83 to 92% Copper = 46% Total Phosphorus = 29 to 80% Dissolved Zinc = 30% Total Zinc & Aluminum = 63% Oil/grease/TPH = 75% Nitrate-N = 39 to 89% Lead = 67%

78 BMP No. 32 Sandfilter Fecal Coliform 78% BOD 70% Total Phosphorus 33% TSS, Metals 50%

79 BMP No. 32 Sandfilter Cascade Station near Portland International Airport

80 BMP No. 33 Storm Treat System Fecal Coliform = 97% TSS = 99% COD = 82% TPH = 90% Lead = 77% Zinc = 90% Chromium = 98% Phosphorus = 89% Total Dissolved Nitrogen = 44%

81 BMP No. 33 Continued Planters

82 BMP No. 33 Continued Planters

83 BMP No. 33 Continued Planters

84 BMP No. 33 Continued Zn = 95.1 % Dissolved Zn = 95.5 % Cu = 86.2 % Dissolved Cu = 65.7 % Pb = 26.9 % Dissolved Pb = 8.3 % Ca, ph, Mg, Turbidity increased %

85 BMP No. 33 Continued

86 BMP No. 3 Continued Port of Vancouver Treatment System

87 BMP No. 33 Continued

88 BMP No. 34 Portable Mixing, Cleanup Shelter with Secondary Containment

89 BMP No. 35 Sundial Marine (Dry Docks) Evaporate Contaminated Stormwater

90 BMP No. 36 Tracking Contaminated Stormwater Off Site

91 BMP No. 37 Gravel Roads or Parking Lots PM10 (10 µ plus particle size) emissions reduced by 50% or more

92 BMP No. 37 Turbidity Reduction % to 99.4%

93 Chitosan

94 The Process of Coagulation 5 microns Add Chitosan Sediment particle Sediment particle Sediment particle Sediment particle

95

96 BMP No. 39 Electrocoagulation

97 Electrocoagulation

98 Electrocoagulation

99 Turbidity Reduction A large reduction in turbidity in the discharge may also reduce COD by 50% or more.

100 ph Decrease Bubbling CO2 or adding dry ice can lower ph

101 BMP No. 40 Bird Discouragement Wires on roof to discourage Seagulls Timed sprinklers on roof

102 Bird Discouragement Periodic use of falcons to discourage other birds Trained Border Collies to discourage birds on the ground Animal control consultants like Critter Control and others

103 E-Coli Treatment Using Ultraviolet light can reduce or eliminate bacteria Chlorination can reduce or eliminate bacteria. Adding ozone can reduce or eliminate bacteria. Long retention times can reduce or eliminate bacteria. A Sand Filter may reduce or eliminate bacteria.

104 BOD and COD Treatment In addition bacteria, Fe, Mg, and P can raise the BOD and COD in the stormwater discharge. BOD 5 may be reduced through aeration of the water depending on what is causing the COD or BOD.

105 That Feeling! Sometimes when dealing with e-coli and phosphorous this is what it seems.

106 Brainstorm There are other good ideas out there! They may be something that is within something else or used for some other purpose.

107 Safety No matter how well you know the job. STOP and think of job safety!!!

108 That s All!!!