DAO 34
6
Water Quality Criteria for Conventional and Other Pollutants Contributing to Parameter Unit Class AA Class A Class B Class C Color PCU 15 50 ( c ) ( c ) Temperature °C rise 0 3 3 3 (Max rise in °C) pH 6.5 - 8.56.5 - 8.56.5 - 8.56.5 - 8.5 Dissolved Oxygen % satn 70 70 70 60 (Minimum) mg/L 5 5 5 5 5-day BOD mg/L 1 5 5 7 (10) Total Suspended Solids mg/L 25 50 ( f ) ( g ) Total Dissolved Solids mg/L 500 1,000 Surfactants (MBAS) mg/L nil 0.2(0.5) 0.3(0.5) 0.5 Oil/Grease mg/L nil 1 1 2 Nitrate as Nitrogen mg/L 1 10 nr 10 Phosphate as Phosphorus mg/L nil 0.1 0.2 0.4 Phenolic Substances as Phenomg/L nil 0.002 0.005 0.02 Total Coliforms MPN/100mL 50 1000 1000 5000 Fecal Coliforms MPN/100mL 20 100 200 Chloride as Cl mg/L 250 250 350 Copper mg/L 1 1 0.05 Arsenic mg/L 0.05 0.05 0.05 0.05 mg/L 0.01 0.01 0.01 0.01 Chromium mg/L 0.05 0.05 0.05 0.05 Cyanide mg/L 0.05 0.05 0.05 0.05 Lead mg/L 0.05 0.05 0.05 0.05 Total Mercury mg/L 0.002 0.002 0.002 0.002 Organophosphate mg/L nil nil nil nil Aldrin mg/L 0.001 0.001 DDT mg/L 0.05 0.05 Dieldrin mg/L 0.001 0.001 Heptachlor mg/L nil nil Lindane mg/L 0.004 0.004 Toxaphane mg/L 0.005 0.005 Methoxychlor mg/L 0.1 0.1 Chlordane mg/L 0.003 0.003 endrin mg/L nil nil PCB mg/L 0.001 0.001 (a) except as potherwise indicated, the numerical limits are yearly average (b) for irrigation purposes, SAR should have a min value of 8 and a max valu © no abnormal discoloration from unnatural causes (d) the allowable temp increase over the average ambient temp for each month (e) sampling taken between 9Am and 4PM (f) not more than 30% increase (g) not more than 30 mg/L increase (h) not more than 60 mg/L increase (i) do not apply if natural background is higher in concentration (j) applicable only to lakes, reservoirs (k) when applied to lakes or reservoirs, the phosphate as P should not excee (l) not present in concentrations to affect fish flavor/taste
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Transcript of DAO 34
Fresh WaterWater Quality Criteria for Conventional and Other Pollutants Contributing to Aesthetics and Oxygen Demand for Fresh WatersParameterUnitClass AAClass AClass BClass CClass DColorPCU1550( c )( c )( c )TemperatureC rise03333(Max rise in C)pH6.5 - 8.56.5 - 8.56.5 - 8.56.5 - 8.56.5 - 9.0Dissolved Oxygen% satn7070706040(Minimum)mg/L555535-day BODmg/L1557 (10)10 (15)Total Suspended Solidsmg/L2550( f )( g )( h )Total Dissolved Solidsmg/L5001,0001000Surfactants (MBAS)mg/Lnil0.2(0.5)0.3(0.5)0.5Oil/Greasemg/Lnil1125Nitrate as Nitrogenmg/L110nr10Phosphate as Phosphorusmg/Lnil0.10.20.4Phenolic Substances as Phenolsmg/Lnil0.0020.0050.02Total ColiformsMPN/100mL50100010005000Fecal ColiformsMPN/100mL20100200Chloride as Clmg/L250250350Coppermg/L110.05Arsenicmg/L0.050.050.050.050.1mg/L0.010.010.010.010.05Chromiummg/L0.050.050.050.050.1Cyanidemg/L0.050.050.050.05Leadmg/L0.050.050.050.050.5Total Mercurymg/L0.0020.0020.0020.0020.002Organophosphatemg/LnilnilnilnilnilAldrinmg/L0.0010.001DDTmg/L0.050.05Dieldrinmg/L0.0010.001Heptachlormg/LnilnilLindanemg/L0.0040.004Toxaphanemg/L0.0050.005Methoxychlormg/L0.10.1Chlordanemg/L0.0030.003endrinmg/LnilnilPCBmg/L0.0010.001(a) except as potherwise indicated, the numerical limits are yearly average values(b) for irrigation purposes, SAR should have a min value of 8 and a max value not to exceed 18 no abnormal discoloration from unnatural causes(d) the allowable temp increase over the average ambient temp for each month(e) sampling taken between 9Am and 4PM(f) not more than 30% increase(g) not more than 30 mg/L increase(h) not more than 60 mg/L increase(i) do not apply if natural background is higher in concentration(j) applicable only to lakes, reservoirs(k) when applied to lakes or reservoirs, the phosphate as P should not exceed an average of 0.05 mg/L(l) not present in concentrations to affect fish flavor/taste(m) these values refer to the geometric meanof the most probable number during a 3-month period(n) for spawning areas for chanos chanos and similar species(o) limit is in terms of dissolved coppernil - extremely low concentrationnr - no recommendations madeClass AA - Public water supply Class I - uninhabited and protected and source of drinking waterClass A - Public water supply Class II - for water sources that will require complete treatmentClass B - Recreational water Class I - for primary contact recreation such as bathing, swimming and skin divingClass C - Fishery Water - for propagation and growth of fishClass D - for agriculture, irrgiation, livestock
Marine WaterWater Quality Criteria for Conventional and Other Pollutants Contributing to Aesthetics and Oxygen Demand for Coastal and Marine WatersParameterUnitClass SAClass SBClass SCClass SDColorPCU( c )( c )( c )( c )TemperatureC rise3333(Max rise in C)pH6.5 - 8.56.5 - 8.56.5 - 8.56.5 - 9.0Dissolved Oxygen% satn70707050(Minimum)mg/L55525-day BODmg/L357 (10)Total Suspended Solidsmg/L(f)(g)(g)( h )Surfactants (MBAS)mg/L0.20.30.5Oil/Greasemg/L1235Phenolic Substances as Phenolsmg/Lnil0.01(l)Total ColiformsMPN/100mL7010005000Fecal ColiformsMPN/100mLnil200Coppermg/L0.020.05Arsenicmg/L0.050.050.05Cadmiummg/L0.010.010.01Chromiummg/L0.050.10.1Cyanidemg/L0.050.050.05Leadmg/L0.050.050.05Total Mercurymg/L0.0020.0020.002Organophosphatemg/LnilnilnilnilAldrinmg/L0.001DDTmg/L0.05Dieldrinmg/L0.001Heptachlormg/LnilLindanemg/L0.004Toxaphanemg/L0.005Methoxychlormg/L0.1Chlordanemg/L0.003endrinmg/LnilPCBmg/L0.001Class SA - waters suitable for the propagation, survival and harvesting of shellfish, tourist zones and national marine parksClass SB - Recreational water Class I - regularly used for bathing, swimming, etcClass SC - Recreational Water Class II - boating and Fishery Water Class II (commercial and sustenance fishing)Class SD - Industrial Water Supply Class II
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