HYDRO24291

• Permit No: C1981044
• IBM Index Class Name: Hydrology
• Doc Name: MONITORING REQUIREMENTS
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

COLORADO DEPARTMENT OF HEALTH, Water Qanlity Control Division
Rationale - Pnge 7, Perini( No. CO-0034/42
Table V-1-Self-rLfonitorine Results /Outlall 013
# Samples Reported Previous No. of
or Reporting Concentrations Permit Limit
Parameter Periods Avg/Mit/hlax Limit Excursions
Flow. MGD 52 0.0006/0.00001/0.002 0.011 `0 0
ln/luent BODs, mg/J (Z 145.8/l/39h ~Peport `'' NA
Efj7uent BODs, mg/~ 9 /3.7/1/45 •15 r" 0
EfJlaent BODs. lb.c/dnv 9 0.07/0.00008/0.34 .i.0 c+r 0
Effluent BODs, Ibs/dny 9 0.18/0.0003/0.86 .LS I'' 0
!n/luentTSS.mg/~ 12 8?.7/4/3/6 Report''' NA
Effluent TSS, mg/J l0 /8.h/h/32 ; !0''~ 0
Efpuem TSS. lbc/dm 10 0.09/0.00//0.31 ;'.5 "r 0
E(Jluent TSS, !bs/duy l0 0.79/0.002/1.04 ; l.O I'' 0
FecnlColiform,No./100rn1 /0 38.7/1/95 ;2,00010 0
Total Residual Chlorine, mg/~ f0 <0.l/<0. l/<0. l D.5 1'1 0
Oil & Grence, mg/~ 52 0.0/0.0/0.0 .0 `61 0
pH, s. u. 52 R. //7.1/8.7 6.0-9.7" r 0
TDS mg/v 3 909/588// 122 Report `"' NA
1° Lirnit reflects 30-doe nvernge. Average, minimum, and marimum /lows were rletennined from the 30-dnc average flox•s reported.
The permittee i.r nlro required to report instontnneouc marimarns. Highest value reported nos 0.0051 MGD.
rzr Limit is n 7-dnv nvernge and nvernge. minirmrm, and marirnurn c•oncentrutians were determined from reported 7-dnc nvernge
concentrntion.c.
~" Li+nit is u 30-day nvernge and average, minimum, oast marimum concemrntians were determined from reported 30-duy nvernge
concentrations.
(4f Limit i.r n 7-dqv geometric menu and nvernge. minimmum, and marimum reported concentrations were determined from reported
7-dqv geometric near concentrutian.c
rsr Limi( i.c daily marimum, reposed concerrtrntionc for the 7-dnv overage and doily mnzirnurn were all <0.1 mg/J~
rnr Limit is un in.emn[nneous rnnzimum. No unalrse.r were nrn since no ri.cunl oil.cheen wn.r ohcer:ed.
`" Limit i.c n minimum and marimum limi[ation. Average. minimum, and maximum were determined from reposed minimum and
rnacirnan vnluec.
r'c` Perini! requires the reporting of n 90-dqv nvernge. Average, minimum, and marimum concerurutions were determined jrorn the
reported 90-duy nvernge concentrntion.r.
Table V-2 --Self-Monitoring Results lOutjall 003)
# Samples Reported Previous No. of
or Reporlirtg Corteentrations Perini[ Limi(
Parameter Periods Avg/hfin/Max Limit Excursions
Flow. h1Gp 52 0.76/OA6/1.h8 3.22510 0
Oil & Grence. mg/~ 52 0.0'0.0/0.0 101U 0
TSS, mg/~ 14 7.7/3/28 35/701'r 0
pH, s. u. s? 7.5/7. l/8? t~.0-9.0"' 0
TDS, mg/J 6 900/880/934 b.'eporv 6l NA
lron (TR), rag/~ !3 0.3/0.08/0.65 /.0/2.0 `°` 0
Zinc (TR). mg/~7 24 0.03/0.01/0. l4 0.23/0.46 `n/ 0
1° Limit re/lect.c 30-dny overage and the camhined /]mv from outjnllc 003. 022, rind 014.drul/not ereced 2,140 gpm (3.315 MGDf.
Average, minimum, and macimum flows were determined from the 30-duy uverugeflow.c reposed. The permittee i.c oleo required
tar to report in.clnnlnneorec rnnximam.c. Highest rn/ue reported nnc ?.302 MGD.
Limit i.r nn in.alnntarreou.c mnsinmm. No nnnlv.cec were nm since no visual oil.dreen true ohsen~ed.
~`~ Limit reflects 30-dny nvernge/7-dny nvernge. Average, rmnirnum, nrrd marirnurrr concentrntionc were determmned from the
° reported 30-dnv and 7-rlnc overage eone•ennwtions.
Limit i,c n rain/mum/marimmm limitation. Average. minimum. and marimum were determined.fi~an reposed minimum and