HYDRO20643

• Permit No: C1980001
• IBM Index Class Name: Hydrology
• Doc Date: 1/27/1994
• Doc Name: REVISED DRAFT PERMIT PITTSBURG & MIDWAY COAL EDNA MINE CDPS C-0032638 ROUTT CNTY
• From: CDOH
• To: DMG
• Permit Index Doc Type: NPDES
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division
Rnrionnle - Pnge 6, Pernlir No. CO-0032638
Table V-3 -- Self-Monitoriur Results - Outfall 004
N' amp es :. Reported.:. Previous Nei. of
or Repotting
~ .. .: Concentratioits : Permit. Limit
~
~Paraineter ..~ ~ ~... ~~ ~ ~::. ~ ~ ~~ .. Periods :~.... ~ ~.~ ~ ~:~ '.'.'Avg/A9in/rlfax ~ . . .
~ ~ ~~.~~~.~~Limit. ~~ Excursions
Flow, MGD 2 0.407/0.349/0.465 NA (IJ NA
7SS, mg/P 2 21.0/14.0/28.0 35/70 RI 0
Oil & Grease, mg/P 2 0.0/0.0/0.0 10 (al 0
Iron (IRJ, mg/P 2 <0.03/<0.03/<0.03 3.5/7.OaJ 0
Manganese (77tJ, mg/P 2 0.335/0.25/0.42 NA(*1 NA
pH, s. u. 2 8.15/8.]/8.2 6.5-9.01 0
Torn] Dissolved Solids, mg/P 2 4210/4146/4316 Report (sl ~'f1
tons/drry 7.1/6.0/8.4 One
ar Average, minimum, and maximum flows were calculated from the 30.day avcrage and daily maximum Jlows rrportrd.
nr Linrit is a 30.day average/daily maximum linritadon. Average, minimum, and maximum concrntradons weer calculated from reported 30.day and daily
marinumr conrrntrarionr.
r'r L'mit is an irurantaneous maximum. No analyses were run liner no ritual oil sheen was observed.
ro Average, minimum, and maximum roncmrradanr were calculated from reported 3(May and daily maximum toneentrafions.
rsr G>rrit is a minimrmr -maximum limitation. Average, minimum, and maximum were calculated from rrportrd minimum and maximum values.
r"t Permit requires dre reporting of a 34day average and daffy maximum. Average, minimum, and maximum tanctnvotians weer ca(ndated jeans the reported
30.day average and daily maximum concentrations. The toed tans per day aeeed the ngufatory limit of oar eon per day ar 363 tans per year, which in face
applies to the combined discharge from a(I outfalls (see section VI.A.3.rJ1
Table V-4 -- Selj-Alonieoring Results - Outjall 006

Parameter ry. Samples -
or Reporting
Periods Reported -
Conceuimtions .
Arg/Min/Maz :. Pre foul '
Permit
Li»eil. Na. of
Limit ..
Exclirsioris.
Flow, MGD 14 0.95/0.333/1.985 2.28 (rl 0
TSS, mg/P /4 8.43/<0.02/22.0 35/70 Rl 0
Oil & Grease, mg/P 14 0.0/0.0/0.0 10 (-0 0
Iron (TRJ, mg/P /4 0.094/<0.02/1.25 1.9/3.81 0
A4mrgmlese (7RJ, nig/P 14 2.06/<0.01/2.71 NA(QJ NA
pH, .r. tt. 14 6.67/6.5/75 6.5-9.01 0
Tarn! Dissolver] Solids, mg/P 14 38/6/3700/4004 Report !61 NA
ron.r/day 15.//5.!/33.1 One ref
rp Aver'oge, minimum, and maximum flows were ca(ndated from the 34day avcrage and daily nmrimum flows reported.
t't Lrnit is a 36da avcra a/dai! maximum limiation. Avers q minimum, and maximum connntradons were ca(ndalcd
Y S Y g from rrportrd 34day and doily
m¢rimmn cancenrrarions.
t'r G'mir is nn insmnraneous maximum. No analyses were nm since no risua( oil sheen was abscned.
r'r .9 rerage, rninimrrrn, and maximum concentrations were ralculaud from reported 36day and daily m¢rimum concentrations.
r4 Limit is a mininumr -marinumr limimfion. Averagq minimum, and maximum were calcularrd from reported minimum and maximum vabms.
r"r Permit requres tlm reporting of a 3(May m~eragr and daily maximum. Average, minimum, and maximum connmradoru were calndatrd from the reported
30.day average and daily maximum concentradons. fie fora( tons per day exceed the rrgu(arory limit of one ton per day or 36S tons per year. u~hiclr in fact
applies ro dre combined discharge from a(I mr falls (see smtion V1.A.3.r)J
2. Stare Snntnline: 77aere are no score sampling resuUs avnilnble jar this facility.
8. Complinnre {Vitlr Ternts and Conditions of Previous Permit
!. E%l7uern Limirmiorcc: The data shown in the preceding tables irtdicnre compliance with all permit conditions.