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GENERAL31916
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Last modified
8/24/2016 7:54:47 PM
Creation date
11/23/2007 7:08:13 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1981158
IBM Index Class Name
General Documents
Doc Date
11/6/1991
Doc Name
PN M-81-158
From
TUTTLE APPLEGATE INC
To
MLRD
Media Type
D
Archive
No
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~~ • <br />COLORADO DEPARTMENT OF HFr~I.TH, Water Quality Control Division <br />Summary of Rationale - Page 10. Permit No. CO--0042439 <br />VII. TERMS AND CONDITIONS: <br />C. Discussion of Effluent Limitations: <br />1. BODS, TSS, and Oil S Grease: Limits from the State <br />"Regulations for Effluent Limitations" will apply for BODS <br />(30/45 mg/1 ), TSS (75/110 mg/1, adjusted for aerated lagoons), <br />and Oil and Grease (10 mg/1, no visible sheen}. <br />2. pH: The Water Quality Standard in this stream segment for pH is <br />a range of 6.5 - 9.0 s.u. These concentrations will be applied <br />to the discharge to protect aquatic life. <br />3. Fecal Colif:orm and Total Residual Chlorine (TRC): These <br />parameters may be limited by the Water Quality Standards for the <br />receiving ettream. The mass balance equation shown in Section <br />VII-B was ~:sed to calculate the allowable effluent <br />concentrations that would not cause the water quality standards <br />to be violated. These concentrations are shown as the values <br />for M2 in 'fable VII-2. The values for Q1, Q2 and Q3 are <br />the same in all of the calculations for water quality limited <br />parameters and are: <br />Ql 21 cfs <br />Q2 = O.C93 cfs <br />Q3 = 21.093 cfs <br />Values fot t91 and M3 vary depending on the background stream <br />quality data (M1, Section III.B.1) and the applicable water <br />quality standard (M3, Section II I. A.3 ). These values are also <br />shown in Table VII-2 along with the calculated limitations(M2). <br />Table VII-2 -- Summary of Mass Balance Calculations <br />Parameter <br />Fecal Total <br />Pollutant Coliform Residual Chlorine <br />Concentration 6/100 ml mg/1 <br />Ml <br />2 <br />0.0 <br />Mg <br />200 0.003 <br />M2 45,000 0.68 <br />
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