1. (a) Under 18 AAC 70.235, the department has established site-specific criteria that modify certain general criteria set out in 18 AAC 70.020(b) for the waterbodies listed in (b) of this section. The site-specific criteria apply only to the affected designated use class indicated in (b) of this section. All other criteria set out in 18 AAC 70.020(b) continue to apply to the waterbodies listed in (b) of this section.
2. (b) Waterbodies subject to site-specific criteria, and the applicable site-specific criteria, are: 18 AAC 70.236(b) LATITUDE LONGITUDE** LOCATION REACH OF WATER AFFECTED WATER QUALITY PARAMETER DESIGNATED USE CLASS AFFECTED SITE-SPECIFIC CRITERIA WATERSHED TYPE/NAME NUMBER* (1) Camp Creek19010301*58°51'150" N. 135°08'30" W45 miles north of Juneau on Lynn CanalCamp Creek below discharge from Kensington Mine dry tailings facility to tidewater (approximately 1,000 feet)Dissolved inorganic substances(1)(A)(i)Total dissolved solids (TDS) from all sources may not exceed 1,000 mg/l. Chlorides may not exceed 200 mg/l. Sulfates associated with magnesium and sodium may exceed 200 mg/l.Set at the downstream end of the affected river reach.(1)(A)(iii)TDS may not exceed 1,000 mg/l.(1)(C)TDS may not exceed 1,000 mg/l.(2) Gold Creek15049900*Beginning at: 58°18'26" N 134°22'43" W Ending at 58°17'57" N 134°25'05" W JuneauDownstream from Gold Creek drain- age tunnel to Gastineau ChannelDissolved inorganic substances(1)(A)(iii)TDS may not exceed 300 mg/l.(1)(C)TDS may not exceed 300 mg/l.(3) Sherman Creek19010301*58°52'08" N 135°08'22" W45 miles north of Juneau on Lynn CanalSherman Creek below discharge of Kensington Mine adit drainage to tidewater (approximately 1.5 miles)Dissolved inorganic substances(1)(A)(i)Total dissolved solids (TDS) from all sources may exceed 1,000 mg/l. Chlorides may not exceed 200 mg/l. Sulfates associated with magnesium sodium may not exceed 200 mg/l.Set at the downstream end of the affected river reach.(1)(A)(iii)TDS may not exceed 1,000 mg/l.(1)(C)TDS may not exceed 1,000 mg/l.(4) Cook Inlet19020401*61°12'22.5" N 150°01'8.7" W (end of outfall pipe for Municipality of Anchorage wastewater treatment plant)Vicinity of Point Woronzof, Anchoragesee footnote***Arsenic****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)36 µ /l (chronic) 69 µ /l (acute) measured as dissolved metalCadmium****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)9.3 µ /l (chronic) 42 µ /l (acute) measured as dissolved metalChromium VI****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)50 µ /l (chronic) 1100 µ /l (acute) measured as dissolved metalCopper****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)3.1 µ /l (chronic) 4.8 µ /l (acute) measured as dissolved metalLead***(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)8.1 µ /l (chronic) 210 µ /l (acute) measured as dissolved metalMercury****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)0.025 µ /l (chronic) 1.8 µ /l (acute) measured as dissolved metalNickel****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)8.2 µ /l (chronic) 74 µ /l (acute) measured as dissolved metalSelenium****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)71 µ /l (chronic) 290 µ /l (acute) measured as dissolved metalSilver****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)1.9 µ /l (acute) measured as dissolved metal 81 µ /l (chronic)Zinc****(2)(A)(i), (2)(A)(ii) (2)(B)(i) (2)(C) & (2)(D)90 µ /l (acute) measured as dissolved metalTurbidity(2)(A)(i), (2)(B)(i) (2)(B)(ii) (2)(C) & (2)(D)May not exceed the natural condition(5) Red Dog Creek Main Stem19050404*68°05'23" N 162°56'48" WNear Red Dog MineRed Dog Creek from the confluence of the Middle fork and North fork to the confluence of Red Dog Creek and Ikalukrok CreekDissolved inorganic substances(1)(C)Total dissolved solids (TDS), with calcium greater than 50% by weight of the total cations, may not exceed 1,500 mg/l.For TDS with calcium less than or equal to 50% by weight of the total cations, the statewide standard in 18 AAC 70.020(b)(4)(C) applies. * Watershed numbers refer to watersheds established by the United States Department of Interior, Geological Survey, "Hydrologic Unit Map - 1987 State of Alaska," adopted by reference in 18 AAC 70.230; information about how to obtain this document is set out in the footnote to the table in 18 AAC 70.230(e) ** River latitudes and longitudes are set at the downstream end of the affected river reach. *** Upper Cook Inlet in the vicinity of Point Woronzof, an area bounded by the constriction of Knik Arm at Cairn Point to the northeast, by the southern shoreline of Cook Inlet southwest to Point Campbell, by a line from Point Campbell to the northeast end of Fire Island, by a line due north from the northeast and of Fire Island to the northern shoreline of Cook Inlet at a point east of the mouth of the Little Susitna River, by the northern shoreline of upper Cook Inlet north and east to a point directly west of Cairn Point; and from that point by a line due east to Cairn Point; a map of the area subject to these site-specific criteria is available at the department's offices in Anchorage, Fairbanks, and Juneau. **** This metal is a toxic substance as defined in 18 AAC 70.990, and falls under the parameter of "Toxics and Other Deleterious Organic and Inorganic Substances" in 18 AAC 70.020(b).

(Eff. 12/12/97, Register 144; am 3/1/98, Register 145; am 4/24/99, Register 150; am 6/26/2003, Register 166; am 2/15/2006, Register 177)

Authority: AS 46.03.020, AS 46.03.050, AS 46.03.070, AS 46.03.080