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Ohio Laws and Rules
(A) Lake erie is designated exceptional warmwater habitat, superior high quality water, public water supply agricultural water supply, industrial water supply and bathing waters, and will meet the criteria set forth in, or derived in accordance with, rules 3745-1-01 to 3745-1-07 of the administrative code, rule 3745-133 of the Administrative Code, and rules 3745-1-36 to 3745-1-39 of the Administrative Code. However, criteria set forth in this rule supersede the above rules where applicable. These criteria apply outside the mixing zone.
Temperature.
(1) There shall be no water temperature changes as a result of human activity that cause mortality, long-term avoidance or exclusion from habitat, or adversely affect the reproductive success of representative aquatic species.
(2) At no time shall water temperature exceed the average or daily maximum temperatures indicated in paragraphs (A) and (B) of table 31-1 of this rule.
(3) The temperature of the hypolimnetic waters of lake erie shall not exceed at any time the daily maximum temperatures indicated in paragraph (C) of table 31-1 of this rule.
Table 31-1. Temperature criteria.
(A) Lake Erie western basin – includes the area of lake Erie west of a line drawn from Pelee point, Canada to Scott point on Catawba island. Shown as degrees fahrenheit and (CELSIUS).
Jan. Feb. Mar. Mar. Apr. Apr. May May June
1-31 1-29 1-15 16-31 1-15 16-30 1-15 16-31 1-15
Average: – – – – – 53 59 65 75
(11.7) (15.0) (18.3) (23.9)
Daily
Maximum: 35 38 39 45 51 56 64 72 78
(1.7) (3.3) (3.9) (7.2) (10.6) (13.3) (17.8) (22.2) (25.6)
June July Aug. Sept. Sept. Oct. Oct. Nov. Dec.
16-30 1-31 1-31 1-15 16-30 1-15 16-31 1-30 1-31
Average: 80 83 83 78 76 66 60 53 -
(26.7) (28.3) (28.3) (25.6) (24.4) (18.9) (15.6) (11.7)
Daily
Maximum 83 85 85 83 81 71 65 58 46
(28.3) (29.4) (29.4) (28.3) (27.2) (21.7) (18.3) (14.4) (7.8)
(B) Lake Erie central basin – includes the area of lake Erie east of a line drawn from Pelee point, Canada to Scott point on Catawba island to the Pennsylvania-Ohio state line. Shown as degrees fahrenheit and (CELSIUS).
Jan. Feb. Mar. Mar. Apr. Apr. May May June
1-31 1-29 1-15 16-31 1-15 16-30 1-15 16-31 1-15
Average: – – – – 43 53 59 63 75
(6.1) (11.7) (15.0) (17.2) (23.9)
Daily
Maximum: 35 38 39 45 48 56 63 72 78
(1.7) (3.3) (3.9) (7.2) (8.9) (13.3) (17.2) (22.2) (25.6)
June July Aug. Sept. Sept. Oct. Oct. Nov. Dec.
16-30 1-31 1-31 1-15 16-30 1-15 16-31 1-30 1-31
Average: 80 83 83 76 71 66 58 48
(26.7) (29.4) (29.4) (27.2) (24.4) (21.7) (17.2) (11.7) (7.8)
Daily
Maximum: 83 85 85 81 76 71 63 53 46
(28.3) (29.4) (29.4) (27.2) (24.4) (21.7) (17.2) (11.7) (7.8)
(C) Seasonal daily maximum temperature limitations for the hypolimnetic regions of lake Erie. Shown as degrees fahrenheit and (CELSIUS).
Month Daily Maximum
January 44 (6.7)
February 44 (6.7)
March 44 (6.7)
April 47 (8.3)
May 51 (10.6)
June 54 (12.2)
July 59 (15.0)
August 59 (15.0)
September 55 (12.8)
October 46 (7.8)
November 41 (5.0)
December 38 (3.3)
R.C. 119.032 review dates: 03/29/2007 and 03/29/2012
Promulgated Under: 119.03
Statutory Authority: 6111.041, 6111.12
Rule Amplifies: 6111.041, 6111.12
Prior Effective Dates: 4/4/1985, 5/1/1990, 10/1/1996, 10/31/1997