Water Quality Standards for Designated Uses 1 COLOR FOR

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Page 262 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ADMINISTRATIVE CODE SUPPLEMENT 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA. 2 FECAL COLIFORM,BACTERIA FC FOR,FRESH WATER USES see. A Water Supply In a 30 day period the geometric mean may not exceed 20. i drinking culinary and FC 100 ml and not more than 10 of the samples may. food processing exceed 40 FC 100 ml For groundwater the FC concentration. must be less than 1 FC 100 ml using the fecal coliform. Membrane Filter Technique or less than 3 FC 100 ml using. the fecal coliform most probable number MPN technique. A Water Supply The geometric mean of samples taken in a 30 day period may. ii agriculture including not exceed 200 FC 100 ml and not more than 10 of the. irrigation and stock irrigation and stock samples may exceed 400 FC 100 ml For. watering products not normally cooked and for dairy sanitation of. unpasteurized products the criteria for drinking water. supply 2 A i apply, A Water Supply For products normally cooked the geometric mean of samples. iii aquaculture taken in a 30 day period may not exceed 200 FC 100 ml and. not more than 10 of the samples may exceed 400 FC 100. ml For products not normally cooked the criteria for. drinking water supply 2 A i apply, A Water Supply Where worker contact is present the geometric mean of.
iv industrial samples taken in a 30 day period may not exceed 200 FC 100. ml and not more than 10 of the samples may exceed 400. B Water Recreation In a 30 day period the geometric mean of samples may not. i contact recreation exceed 100 FC 100 ml and not more than one sample or. more than 10 of the samples if there are more than 10. samples may exceed 200 FC 100 ml, B Water Recreation In a 30 day period the geometric mean of samples may not. ii secondary recreation exceed 200 FC 100 ml and not more than 10 of the total. samples may exceed 400 FC 100 ml,C Growth and Propagation of Not applicable. Fish Shellfish Other Aquatic,Life and Wildlife, Page 263 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ENVIRONMENTAL CONSERVATION 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
3 DISSOLVED GAS FOR,FRESH WATER USES, A Water Supply Dissolved oxygen D O must be greater than or equal to 4. i drinking culinary and mg l this does not apply to lakes or reservoirs in which. food processing supplies are taken from below the thermocline or to. groundwater, Water Supply D O must be greater than 3 mg l in surface waters. ii agriculture including,irrigation and stock, A Water Supply D O must be greater than 7 mg l in surface waters The. iii aquaculture concentration of total dissolved gas may not exceed 110 of. saturation at any point of sample collection, A Water Supply May not cause detrimental effects on established water. iv industrial supply treatment levels, B Water Recreation D O must be greater than or equal to 4 mg l.
i contact recreation,B Water Recreation Same as 3 B 1. ii secondary recreation, C Growth and Propagation of D O must be greater than 7 mg l in waters used by. Fish Shellfish Other Aquatic anadromous or resident fish In no case may D O be less. Life and Wildlife than 5 mg l to a depth of 20 cm in the interstitial waters of. gravel used by anadromous or resident fish for spawning see. note 2 For waters not used by anadromous or resident fish. D O must be greater than or equal to 5 mg l In no case may. D O be greater than 17 mg l The concentration of total. dissolved gas may not exceed 110 of saturation at any point. of sample collection, Page 264 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ADMINISTRATIVE CODE SUPPLEMENT 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
4 DISSOLVED INORGANIC,SUBSTANCES FOR,FRESH WATER USES. A Water Supply Total dissolved solids TDS from all sources may not exceed. i drinking culinary and 500 mg l Neither chlorides nor sulfates may exceed 250 mg l. food processing, A Water Supply TDS may not exceed 1 000 mg l Sodium adsorption ratio. ii agriculture including must be less than 2 5 sodium percentage less than 60 and. irrigation and stock residual carbonate less than 1 25 milliequivalents liter see. watering note 6, A Water Supply TDS may not exceed 1 000 mg l A concentration of TDS may. iii aquaculture not be present in water if that concentration causes or. reasonably could be expected to cause an adverse effect to. aquatic life see note 12, A Water Supply No amounts above natural conditions that can cause. iv industrial corrosion scaling or process problems. B Water Recreation Not applicable,i contact recreation.
B Water Recreation Not applicable,ii secondary recreation. C Growth and Propagation of Same as 4 A iii,Fish Shellfish Other Aquatic. Life and Wildlife, Page 265 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ENVIRONMENTAL CONSERVATION 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
5 PETROLEUM,HYDROCARBONS OILS,AND GREASE FOR,FRESH WATER USES. A Water Supply May not cause a visible sheen upon the surface of the water. i drinking culinary and May not exceed concentrations that individually or in. food processing combination impart odor or taste as determined by. organoleptic tests, A Water Supply May not cause a visible sheen upon the surface of the water. ii agriculture including,irrigation and stock, A Water Supply Total aqueous hydrocarbons TAqH in the water column may. iii aquaculture not exceed 15 g l see note 7 Total aromatic hydrocarbons. TAH in the water column may not exceed 10 g l see note. 7 There may be no concentrations of petroleum, hydrocarbons animal fats or vegetable oils in shoreline or. bottom sediments that cause deleterious effects to aquatic. life Surface waters and adjoining shorelines must be. virtually free from floating oil film sheen or discoloration. A Water Supply May not make the water unfit or unsafe for the use. iv industrial, B Water Recreation May not cause a film sheen or discoloration on the surface.
i contact recreation or floor of the waterbody or adjoining shorelines Surface. waters must be virtually free from floating oils,B Water Recreation Same as 5 B i. ii secondary recreation,C Growth and Propagation of Same as 5 A iii. Fish Shellfish Other Aquatic,Life and Wildlife, Page 266 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ADMINISTRATIVE CODE SUPPLEMENT 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
6 pH FOR FRESH WATER,USES variation of pH for,waters naturally outside. the specified range must,be toward the range, A Water Supply May not be less than 6 0 or greater than 8 5. i drinking culinary and,food processing, A Water Supply May not be less than 5 0 or greater than 9 0. ii agriculture including,irrigation and stock, A Water Supply May not be less than 6 5 or greater than 8 5 May not vary. iii aquaculture more than 0 5 pH unit from natural conditions. A Water Supply May not be less than 5 0 or greater than 9 0. iv industrial, B Water Recreation May not be less than 6 5 or greater than 8 5 If the natural.
i contact recreation condition pH is outside this range substances may not be. added that cause an increase in the buffering capacity of the. B Water Recreation Same as 6 A iv,ii secondary recreation. C Growth and Propagation of May not be less than 6 5 or greater than 8 5 May not vary. Fish Shellfish Other Aquatic more than 0 5 pH unit from natural conditions. Life and Wildlife, Page 267 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 38,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ENVIRONMENTAL CONSERVATION 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA. 7 RADIOACTIVITY FOR,FRESH WATER USES, A Water Supply May not exceed the concentrations specified in Table I of the.
i drinking culinary and Alaska Water Quality Criteria Manual see note 5 for. food processing radioactive contaminants and may not exceed limits specified. in 10 C F R 20 see note 9 and National Bureau of,Standards Handbook 69 see note 10. A Water Supply Same as 7 A i,ii agriculture including. irrigation and stock, A Water Supply Same as 7 A i except that concentration factors for. iii aquaculture organisms involved may not exceed maximum permissible. limits for specific radioisotopes and unidentified mixtures as. established by 10 C F R 20 see note 9 and National Bureau. of Standards Handbook 69 see note 10,A Water Supply Same as 7 A i. iv industrial,B Water Recreation Same as 7 A i,i contact recreation.
B Water Recreation Same as 7 A i,ii secondary recreation. C Growth and Propagation of Same as 7 A iii,Fish Shellfish Other Aquatic. Life and Wildlife, Page 11 Job Path psc3912 cville data1 stcodes ak aac supp q t18 Date 06 17 11 Time 13 15 3. 0000 AAC 7 11 SUPP T 18S 2ndRun, 18 AAC 70 020 ENVIRONMENTAL CONSERVATION 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
8 RESIDUES FOR FRESH,WATER USES Floating,solids debris sludge. deposits foam scum or,other residues criteria,are not applicable to. groundwater See note, A Water Supply Residues are not allowed in surface waters of the state in. i drinking culinary and concentrations or amounts that have the following effects. food processing may impair designated uses cause nuisance or objectionable. conditions result in undesirable or nuisance species or. produce objectionable odor or taste,A Water Supply Same as 8 A i. ii agriculture including,irrigation and stock,A Water Supply Same as 8 A i.
iii aquaculture,A Water Supply Same as 8 A i,iv industrial. B Water Recreation Same as 8 A i,i contact recreation. B Water Recreation Same as 8 A i,ii secondary recreation. C Growth and Propagation of Residues are not allowed in surface waters of the state in. Fish Shellfish Other Aquatic concentrations or amounts that have the following effects. Life and Wildlife may impair designated uses cause nuisance or objectionable. conditions or result in undesirable or nuisance species. Page 269 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 39,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ENVIRONMENTAL CONSERVATION 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA.
9 SEDIMENT FOR FRESH,WATER USES criteria are,not applicable to. groundwater, A Water Supply No measurable increase in concentration of settleable solids. i drinking culinary and above natural conditions as measured by the volumetric. food processing Imhoff cone method see note 11, A Water Supply For sprinkler irrigation water must be free of particles of. ii agriculture including 0 074 mm or coarser For irrigation or water spreading may. irrigation and stock not exceed 200 mg 1 for an extended period of time. A Water Supply No imposed loads that will interfere with established water. iii aquaculture supply treatment levels,A Water Supply Same as 9 A iii. iv industrial,B Water Recreation Same as 9 A i,i contact recreation.
B Water Recreation May not pose hazards to incidental human contact or cause. ii secondary recreation interference with the use, C Growth and Propagation of The percent accumulation of fine sediment in the range of 0 1. Fish Shellfish Other Aquatic mm to 4 0 mm in the gravel bed of waters used by. Life and Wildlife anadromous or resident fish for spawning may not be. increased more than 5 by weight above natural conditions. as shown from grain size accumulation graph In no case. may the 0 1 mm to 4 0 mm fine sediment range in those. gravel beds exceed a maximum of 30 by weight as shown. from grain size accumulation graph see notes 3 and 4 In. all other surface waters no sediment loads suspended or. deposited that can cause adverse effects on aquatic animal. or plant life their reproduction or habitat may be present. Page 270 Job Path psc3944 Charlottesville 51 71 data1 stcodes ak aac. supp qj49714 92 Date 09 24 06 Time 12 50 39,AAC 10 06SUPP T 18 3rdrun. 18 AAC 70 020 ADMINISTRATIVE CODE SUPPLEMENT 18 AAC 70 020. Water Quality Standards for Designated Uses,POLLUTANT WATER USE CRITERIA. 10 TEMPERATURE FOR,FRESH WATER USES,A Water Supply May not exceed 15 C. i drinking culinary and,food processing,A Water Supply May not exceed 30 C.
ii agriculture including,irrigation and stock, A Water Supply May not exceed 20 C at any time The following maximum. iii aquaculture temperatures may not be exceeded where applicable. Migration routes 15 C,Spawning areas 13 C,Rearing areas 15 C. Water Quality Standards for Designated Uses POLLUTANT amp WATER USE CRITERIA 1 COLOR FOR FRESH WATER USES see note 8 A Water supply i drinking culinary and food processing May not exceed 15 color units or the natural condition whichever is greater A Water Supply ii agriculture including irrigation and stock watering Not applicable A Water Supply iii aquaculture May not

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