ML20128N455
| ML20128N455 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 05/01/1985 |
| From: | Gahm J PUBLIC SERVICE CO. OF COLORADO |
| To: | Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| P-85164, NUDOCS 8506030280 | |
| Download: ML20128N455 (28) | |
Text
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16805 WCR 19 1/2, Platteville, Colorado 80651
/
May 1, 1985 Fort St. Vrain Unit No. 1 P-85164 M@ 2 0MM N Regior,al Administrator p'
! l Attn: Mr. E. H. Johnson i
Region.IV MAY 211985 l
U.S. Nuclear Regulatory Commission NI
.611 Ryan Plaza Drive, Suite 1000 U
Arlington, Texas 76011 Docket No. 50-267
SUBJECT:
Final Permit, Colorado Wastewater Discharge Permit System No.
C0-0001121
REFERENCE:
P-85083, Gahm to Johnson Dated March 14, 1985
Dear Mr. Johnson:
The above referenced letter, P-85083, transmitted a copy of Colorado Wastewater Discharge Permit C0-0001121 received March.5, 1985.
-Shortly after receiving this permit, Public Service Company (PSC) applied for and was granted a stay of the permit pending further discussions with the State of Colorado.
On ' April 12, 1985, PSC received a copy of a letter which was sent from the Environmental Protection Agency (EPA) to the State of Colorado (G-85131)'.
A copy of this letter is enclosed for your information. The letter states that the EPA
"...does not recognize
-or acknowledge the legal validity of this recently issued PSC Ft. St.
Vrain permit...".
Based on_ this action by the EPA, PSC and the State of Colorado negotiated a draft modification to the permit. A copy of the draft modification is enclosed for your information. On May 3, 1985, PSC received a copy of a letter which was sent from the EPA to the. State of Colorado (G-85166). A copy of this letter is enclosed for your
[
information. The letter states that "...the draf t modi fications do not satisfy our objections...".
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-At. the current time. the State of Colorado is in the process.of
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modifying the permit such that it will be acceptable.to PSC, the
~
State,.and" the EPA.
In the interim and until such time as a new permit 11s issued, PSC.is continuing to act in accordance with the requirements-of the permit,which was in force prior to the proposed revision ~ that was sent. to you in the. above reference letter (P-85083).
We hope that lthis letter has. reduced any confusion that may have-
-existed on your part regarding the status of our EPA discharge permit.'
We will keep you informed of any further developments as they occur.
If you have any questions regarding this matter, please contact Mr. M. H. Holmes at (303) 571-8409.
Sincerely, a
W.
ahm Manager, Nuclear Production Fort St. Vrain Nuclear Generating Station JWG:FJB/djc
-Enclosures ~
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'i th 3.-
i UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
~'
- f REGION Vill 186o LINCOLN STREET-
~
DENVER. COLOR ADO 80295 wa os]os/sr APR 3 01985 Ref-8Wi-C Mr. Ron Schuyler Section Chief, Permits and Enforcement Section Water Quality Control Division Colorado ~ Department of Health 4210 East lith Avenue Denver, Colorado 80220 Re: Public Service Company Fort ST.Vrain C0-0001121
Dear Mr-Schuyler:
We have reviewed the draft modification to the' pemit that was signed on February 21, 1985, for Public Service Company of Colorado's Fort St. Vrain generating station and we have the following coments:
1)
The draft modifications do not satisfy our objections to the lack of internal effluent limitations for the discharges from the sewage treatment plant, the drains from the reactor building and the turbine building, and.the lack of limitations or prohibitions on_ metal cleaning-wastes. See our letter of-April 8, 1985, to you for specifics.of our objections.
l 2)-
Because the holding ponds for the water supply will provide some additional settling, we believe the sampling point for TSS f
in the water supply should be after the holding ponds, not
~
before them.
3)
The requirement that discharges 001 and 002 not contain detectable amounts of the 126 priority pollutants except for total chromium and total zinc appears to be'a misapplication of-the effluent limitations guidelines (ELG). 'In 40 CFR 423.13 it specifies that in discharges of cooling tower blowdown there shall not be detectable amounts of the 126 priority pollutants contained in chemicals added for cooling tower maintenance,
- except for total chromium and total zinc. The draft modification that allows an alternative to analyzing for the 126 priority pollutants partially resolves the problem.
However', there still is the problem of the wording of the effluent limitation and a conflict with the effluent limitation on total copper some of the heavy metal priority pollutants are likely to be present in the discharge in trace, but detectable amounts. A possible solution would be to add a footnote on pages.three and four that explains that it applies to chemicals added for cooling tower maintenance.
i
Mr. Ron Schuyler Page 2 Please note that our request that the Division submit to EPA within 90 days a proposed permit revised to meet EPA's objections is still in effect.
~
If you have any questions about our comments please call Bob Shankland of my staff at<293-1591.
Sincerely yours e::.l. M :,t;;r. P.E Da;;tyDia:;r,.-
Water litana;cment Division Max H. Dodson, Director Water Management Division George Green #
cc:
Public Service Company I
1 1
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y UNITED ST ATES ENVIRONMENTAL PROTECTION AGENCY I
8 REGION Vlil e, j 1860 LINCOLN STREET DENVER. COLOR ADO 80295 (CC C 04 M W APR U kv Ref:
8W4-C Mr. Rcn Schuyler Section Chief, Permits and
' Enforcement Section Water Quality Ccntrol Division Colorado Department of Health 4210 East llth Avenue Denver, Colorado 80220 Re: 90 Day Veto Notice for PSC Ft. St. Vrain CD-000ll21
Dear Mr. Schuyler:
The above permit was originally subject to public notice in November, 1983. On Decenber 2, and December 23, 1983, conments and objections were provided to Judy Brtch, the permit writer, by Bob Burm and Bob Shankland of my staff. These court.ents ccncerned the fate of internal waste streans such as boiler blowdown, the sewage treatment plant, the turbine building stup, and metal cleaning waste streans.
It was reconmended that these streams have internal limits placed on them before dilution or that these discharges be prohibited.
Despite these objections, the permit was signed on February 21, 1985 and received by this Office on March 7,1985. Our objections are as follows:
(1) Modifications to the final permit are not sturmarized or explained anywhere in the Rationale. - This is in violation of the requirements of 40 CFR 124 17. Without this stannary it was very difficult for the EPA staff to determine what changes, if any, were nade to the permit before issuance.
It would be.just as difficult for the public to make stch a determination.
(2)
The permit has been nodified to call for sampling of the turbine building drain, the reactor building drain, and the sewage treatment plant (Part IA 4.). The statement is made that no numeric limits apply _ to the sewage plant effluent. A similar statement is not made for the two c1 rains, but it appears that no limits apply to these discharges as well. Tne two building drains cone under the " low voltrae waste sour s" as defined in 40 CFR 423.11 and must be regulated under the B M-BOT technology-based regairements before dilution with the cooling tower bloadown water (40 CFR 122.45(i),
423.12 and 423.13). The sewage plant also must have technology-based effluent limits applicable to it before dilution.
- Until the above limitations are in the permit, it will be unacceptable to EPA.
~
t (3) The permit,. as proposed, has no limitations or prohibitions on metal cleaning wastes.
40 CFR 423.13 (e) requires BAT limits for copper and iron that are intended to be met before dilution.
The copper and iron limits in the final discharge do not provide adequate controls because of the dilution involved, and the permit is not acceptable until this is corrected.
EPA-does not recognize or ackno41 edge the legal validity of this recently issued PSC Ft. St. Vrain permit The purpose of this letter is to request that the Division submit to EPA within 90 days of the date of this letter a proposcd permit revised to meet EPA's objections as noted above.
If such a permit is not submitted to EPA within 90 days, EPA will issue a permit to PSC pursuant to 40 CFR 123.44(h).
Please note that if this 90 day deadline is missed, exclusive authority to issue the PSC permit will pass from the State of Colorado to EPA under 40 CFR 123.44(h)(3).
Sincerely yours,
/
Max H. Dodson, Director Mater Management Division cc.
George Green PSC
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COLORADO DEPARTMENT OF HEALTH Thomas M Verr on M D Rienard D tamm Governor J67o
' Acting Esecutwe D.rectot April 15, 19E5 COLORADO DEPART)'ENT OF HLALTH WATER QUAE 17Y CONTROL DIVISION Public Notice of Coepleted Applications and Tentative Determination to Issue Vaste Discharge Perrits Furpose of Public Notice: The purpose of this notice is to state that comple te applications for permits to discharge pollutants to waters have been cade by the applicants named below.
The Colorado Department of Health intends te-issue Colorade Dischar,: Perrit Syster permits for the facilities listed below, pursuant to thc. Clean Water Act, and the Colorado Water cuality Centrcl Act.
All pereits are subject to the approval of the United States EPA.
I'.
TOUN OF ANTONITO PERMIT NO.:
CO-0040975 Adrian Rivera, Town Clerk County:
Conejos P.O. Box 86 Drafter:
Nelson Antonito, CO 81120 Phone:
320-E333 x3476 (303) 376-2355 FEW PERMIT for discharge of docestic wastewater from Category 20, Subcategory 4: lagoon (100,000 to 19),999 CPD).
DISCHARGE to Rio San Antonio Segment 15a, Region 8 Rio Grande Sub-basin, Rio Grande Pasin. CLASSIFIED Agriculture, Recreation Class 2.
2.
AVONDALE W6SD PERMIT NO.:
CO-0021075 Ruben Tofoya County:
Pueblo P.O. Box 188 Drafter:
Akins l
Avondale, CO 81022 Phone:
320-8333 23743 (303) 947-3186 RENEWAL of percit for discharge of docertic wastewater fror Category 2C, Subcategory 3: docestic wastewater - lagoons, sewage (200,000 to 49c,o99 Grp).
DISCHAFGE to Collier Ditch, Septent 4,
Middle Arkansas Ffver Sub-he.r, Arkansas Basin. CLASSITIED Agriculture, Fecreation Class 1.
b o a O
O O 4 m
h S h O' I k
F-6
." CF ; M':EY Rori crA:
rrFJ:::
V.
r r-S h h '
T'aait-) T. Hadley, Mgr. Terr. 6 Fer.
C ount y :
Arr! * :e t r 105 East Kiova, Scitt 20e Drafter:
Futic P.O. bos-2679 Phone:
320-E33? x1491 Cc.lorado Springs, C0 80901 (303) 475-7005 AMENDMENT to perrit f or purpose of adding outf all (bO7-discharge fror new sedirentation pond.
DISCHAEGE to Deep
- Creek, Segment 6
Piedra Riv(r Sub-basin, San Juan /D'olores River Basin.. CLASSIFIED Agriculturc, Eecreation Class 2,
Aquatic Life Class 2 Wars.
4.
ADOLPH: COOPS COMPANY PERMIT NO. :
CO-0032097 Howard V. Lewis County:
Jefferron Drafter:
Dudley Eegulatory Affairs Dept.
M f] f344 Pnene:
320-E323 x372f Golden, CO 80401 (303)-277-3376 EENEWAL to perrit for discharge of cooling water frer Cat (rery 12, Subcate;ory 1: canufacturing and.other industry.
'DISCEAPGE te Wadsvorth' Ditch, Segrent 16,. Clear Creek Easin. CLASSIFIED Agriculture. Recreation Class 2,. Aquatic Life Class 2 Warr.
5.
COTTER CORPORATION PERMIT NO.:
CD-0002244 A. O. Courtney,. Dir. Env. Af f airs County:
Jefferson 9305 W. Alameda Parkway, Suite 201 Drafter:
Dudley Lakewood, CO 80226 Phone:
320-8333 x3726 (303) 232-8216 APENDMENT to permit f or_. purpos e of identifying the domestic wastestreats and including associated parameters.
DISCHARGE to Ralston Creek, Segment 17 South Platte River Basin.
' CLASSIFIED Water Supply, Agriculture, Recreation Class 2,
Aquatic Life Class 2 Cold.
6.
D1'RANGO WEST MITRO DIST. (3 PER12T NO.:
CO-003622f Craig Dickson, President County:
La Plate P.O. Box 824 Drafter:
Youngberg Durango, CO B1302 Phone:
320-E333 x3740 (303) 9-3434 PENEVAL to percit f or detes t i c wa s t eva t er f ror Ca t e ge r; 21. Sutcatcrory 3:
docestic wastevater-rechenical plants (50,000 te 95.c0f GFD).
(
Anfra DISCHAEGE to a tributary of Lightne r Creek, Serrce: 135, Tegier River Sut-ba,in, San Juan Fiver. Easir.. CLASSITIET Apr. culture, Eecrea:3or Class 2, Acuatic Life class 2 CcId.
' 1, : -
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M ~.
P - ;r;v;
..r ;y c1'r. er.;-'r W i r'
Ceu-:':
'.r, r i t,
-Yittc.s1 E-7( r vect:
St..-i.'. hor. 5M Draf te r:
Dr:an Tt. Collir.F. C0 F05:2 Pbenc:
320-F333 x3' 3 i
(303) 221-6663 RE!:FWAL te Pe rr it. f or - c'f scharge fror Category 08. - S t.bc.i t e ro r y 3: water
- t rea ttront plant-interrittent discharge (0 to 0.44 MO:J.
la Toudre
- DISCHARCE to Cacht -la Poudre River,. Segeer.t -10, Eegion 2, Cache River Sut-ba s ir.,
S.
Platte River Basin.. CLASS 1 TIED Water
- Supply, Apricu3ture, Recreation. Class 2, Aquatic life Class 2 Cold.
F.
FRISCO SA!:ITATIC!: DISTEICT PEPJ'IT NC. :
CO-0020451 Johr F.. Sprauer, Chren'of Board County:
Su:rit
.Trisco:Sar.:taticn District Drafter:
He 2 r.e r P.O. Box 601 Phone:
320-8333 x3727 Frisco, CC P'443 (303)'6ff-3723 EENEWAL te percit. for discharge fror Category 21, Subcategory 5: dorestic mechanica: VCP (500,000 to 999,999 GFD).
-DISCHARCE te Miner's Creek, Segeent 4, Eegicn 12, Elue River Sub-basin, Upper.Celcradt River Basin.. CLASSIFIED Eater
- Supp3y, Agriculture,
- Eecreatien' Class 2, Aquatic Life Class -1 Celd.
.9.
CITY OF GLENWOOD SPRINGS WTP PER!GT. NO. :
CO-0020516 Michael Cepp, City Manager.
County:
Carfield Drafter:
Holmer 806 Cooper Avenue Glenwood Springs, CO 81601-Phone:
3727 (303).945-2575' RENEWAL to Jpermit for discharge of treated effluent froc Cateogry 21, Subcategory 6: Domestic, Mechanical WTP, from 1,000,000 up to _ 2,499,999 EPd hork River, a tributary to the Colorado River, I
DISCHARGE tco Roaring Segment 3, Region 12, Roaring Fork River Sub-basin, Upper _Colorade River Basin.
CLASSITIED: Water Supply, Agriculture, Recreation Clas's 2,' Aquatic Life Class I Cold.
- 10. CITY OF GREELEY-BOYD LAKE CP r1 PERM!! NO.:
CO-003134F
' John Gauthiere Ccunty:
Larieer 919 7th St.
Drafter:
Dolan Greeley,-CC F0r31 Frene:
300-E233 x21 2 (303) 353-tI23 FENEWAL te verrit for discharge of filter backwasi and e ergency everf;ov, Category Ot, Subcategory 1_: vnter treatrert p;ar.t -ir t e rr.i t t e nt diserarg(
DISCHAPGE to unnsted diter tc 115 Tnerpso-Fiver, S e grer.t
(,
Eegion 2, lir Thorpscn Tiver Sub-tcrir, E.
Pla tt a Elver Er.r i r.. CL/.SSITIED Agrice: turc,
Fe rreat f er 2:se s 2, Acurt ic-Lif, c'. a s s : it-.
IJ 1,. h.' S t! Ci r:
- i t
.i; ':-*
Cr-P(;C;'t Mar; M. Trh c..A+*:
Pirrairr f."r:
Wt :t 92 6 7th 5:r(c:
- Pra t t r:
helsnn Greeley. C0 F063)
I'ren4 :
320-F333 v347f (303) 333-0123 x340 AMEN! PEN 1 for rurpose rf rer ovi n; t1. t ria t t: ent h u c' secondary Jancuage.
DISCHAFCE to Cache.La Poudre Rivrr, Segrent 12, kerfon 2, Cache fLa Poudre l
Sub-basin..S. Platte Piver Basin. CLASS 1 TIED Apricriture, Recreation Class i
2, Aquatic Life Class 2 Warr.
4
.12. TOWN OTfRAYDEN-pef $:17 NO.:
CO-0040959
-Terry McCarty, Public Works Director County:
Foutt 250.W.' Jefferson Ave., P.O. Bor l'f.
Draf ter:
Holmer Hayden, Cf E2f39 Phcnt :
320-8333 x3727 (303) 276-3741 NEW ' ' PERMIT f c r discharge of treated effluent fror domestic wastewater lagoon syster, Category 20, Subcategory 4: (500,000 t o 999,999 GFD).
DISCEARGE te Dry Creet, a tributary to the Yarra Piver, Septent 2, Pesict 12,- (Yarps River) Yarps River Sub-besin, Upper Colorado River Basin.
-CLASSITIED (Yampa River) Water Supply, Agriculture, Recreation Class 2,
Aquatic Life Class 1 Cold.
13.
INDUSTRI AL RESOURCES, INC.
PERMIT NO.:
CO-0040754 Edward C. Rosar-County:
-Rio Blanco 300 Union Boulevard, Suite 250 Drafter:
Simpson/Holmer
.Lakewood, CO 80228 Phone:
320-8333'x3727
.(303) 986-4507 1'
. AMENDMENT to percit for purpose of removing ef fluent licitations for TSS-i based on the variance decision.
DISCRARGE to 'a tributary of Yellow Creek, Segeent 13b, White River Sub-basin, Lower Colorado River Basin. CLASSITIED Agriculture.
-PERMIT NO.:
CD-0C?2861
/ JOE S. JOHNSON' ESTATE County:
Larimer Virginia Johnson Drafter:
Nelson j
1819 North Garfield Phene:
320-8333 x3476 i
Loveland, CC 80530 (303),667-FGC7
?
PENEWAL te perrit-for discharpe' cf derettic wasterster, Category 20, j
. Subcategory 2: Jagoon (20,000 to 49,*99 CPP).
DISCHARGE te.en unnared ditch which is a tributtry to Hi))sbero ditet.
f UNCLASSITIEr.
TiryI; N+.:
U -W.12+:
I h. CIT N LA Jr;t.
Cocnty:
N e r r.
Harold Seef it 3d, Dir. of.Tur.ic Ecr4
' Mini ci pa1 l El c'g., P.O. Box 4F 9
' Drafter:
Atins La Junta, CO E1050 Phone:
320-6333 x3743 (303) 384-2578
'FENEKAL to po rrit. f or discharfe of doetstic wastewater f ror Category 21, Subcategory 6:
domestic wastewater mechanical plants (1,000,000 to
~
2,499,999 CPD).
DISCHARGE to Arkansas River, Segment 1. - Lowe r Arkansas River Sub-basin,
' Arkansas. River Basin. CLASSIFIED ~ Water Supply. Agriculture, Recreation
. Class 2, Aquatic ' Lif e Class 2 Warc.
- 36. CITIES OF LITTLETON 6 ENGLEWOOD PERMIT NO.:
CO-0032999.
W!Iliar T. Owen
. County:
Arapahoe 3400 S. Elati St.
Drafter:
Akers Englewood, CO 80110 Phone:
320-F333 x3753 (303) 761-1140 AENDMEl:T te 'perrit for purpose of increasing the. capacity of the facility f ror 25 NGD to 2E MCD.
No adjusteent in the annual fee is necessary as a result of this changc.
DISCHARGE to S.
Platte. River, Segment 14, S.,
Platte River Basin.
CLASSITIED Water Supply, Agriculture, Recreation Class 2,
Aquatic Life Class 1 Ware.
- 17. TOWN OF MA';ZANOLA PERMIT NO.:
CO-0023825 Edward Thorpson
. County:
Otero P.O. Box 167 Drafter:
Akins
.Manzanola, CO 8105B~
Phone:
320-8333 x3743 (303) 462-5544 RENEWAL to - permit ~ for discharge of dotnestic wastewater froe Category 20, Subcategory 2: domestic wastewater lagoons, sewaFe (50,000 to 99,9c9 CPD).
Arkansas htiver ' Basin.
DISCHARGE to Arkansas River, Segment 1,
Lower CLASSITIED Water Supply, Agriculture, Recreation Class 2 Aquatic Life Class 2 Ware.
IF. Martin Marietta Denver Aerospace PERIT No. :
Co-0001511 Larry Tuscher County:
Jefferson.
P.O.. Box'179 Drafter:
Dudley Denver, CO 80201 Phone:
320-6333 x3740 (303) 395-2361 AMENDME!~I to pereft for the purpose of icrosing BAT ef fluert Iftitations plus imposing. ef fluent - licitations and ronitoring requirements for organic constituents.
DISCHAFCE to Frust. Creek, SeFrent 7, Ferior 3 & 4, Scuth Platte PIver Easfr CLASSITIED: Agriculture, Eecreation ClaFF 2, A uatic life-ClaFF 2 Cold.
, y p - *:c y - ~. 9 - ctp:.,.
- p. p., -.,,,
c, _( t ;p;35 L(nnir (5ter:
C c.cn. 3 :
Chaffet Kat bror. C~
F !. 3r Tra tor:
Delan d
(303) 3C'-23r]
Thont :
320-E333 x30:
FEhTWAL to perrit for discharge of swicciny por i. overflow fror CateFory it. Subca t eg ory ': water treate(et ;1 ant s-int erri t t ent dischargt ur to 156 CI M.
DISCHAFCE t c.
Chall Creek, Segnent 12, Fcgion 13, 4 ~6 7 Upper Arkansas River Sub-basin, Arkansas Ffver Basin.
Agriculture, Fecreatf or Class 2, Aquatic Life Class I Cold.
- 20. TOWN OT.NEDEF.LA'.)
PERMIT NO. :
CO-0020222' T
Foland Siebold County:
Boulder P.O.-Eox 39r Drafter:
Akers Nederland, CO 804f(
Thone :
320-8333 x3753 (303) 444-3560 RENEWAL te per it for discharge of treated docestic wastewater fror Category 2C, SubcateFory 3: derestic wastewater lagoon (200,000 to 499,999 GFD).
. DISCHARGE te Midi!Ie Boulder Creek, Segment 3, Eoulder Cre(L Sub-basir, S.
Platte.Eiver Easin. CLASSIFIED Water Supply, Agriculture, Recreation Class 2, Aquatic-Life Class 1 Cold.
- 21. NEWLIN CREEK MINE, LTD.
PERMIT NO.:
CO-0037877 Michael J. Bertoldi, Engineer County:
Fremont P.O. Box 402 Drafter:
Kubic Florence, 00.81226 Phone:
320-6333 x3491 (303) 784-4227 RENEWAL to~pereit for discharge of surface runoff froc an underground coal mine f roc Cat,egory 2. Subcategory 01: surf ace runof f-sedimentation ponds.
DISCHARGE te Magpie Gulch, Segment 14, Region 13, 4 & 7 Upper. Arkansas River Sub-basin, Arkansas River Easin. CLASSIFIED Agriculture,, Recreation Class 2, Aquatic Life Class 2 Cold.
- 22. NEWLIN CREEF. MINE, LTD.
FEFJ:IT NO. :
CO-0037141 Michael J. Bertoldi, Engineer County:
Fremont F.O. Box 4C2 Drafter:
Kubic Florence, CO 81226 Phone:
320-2333 x3 c; (303) 764-4227 l
RENEWAL to percit for discharge of surface runoff frer cotl rining railroad Icadout facility from Catercry 2,
Subcategory 01 :
surface runof f-sedicentation ponds.
DISCHAFGE te Florence Ditch (Enclas5f fled).
0*
I
/. iAr4Fr. Sir:E F SA':n ":
ri p t '. r" Ire
.i.
re-e....:
Wr.r t bv C r et H, Presidtr Cennt s :
Arrie?,:r T.O. Ec> 157 Dr.fter:
YounrS rg Pagosa Springs, CO E2247 Phone:
320-E33. x3740 (303) 2t '-5465 A"ENDFFNT' t e permit for purpost rf correcting errore in the originally issued permit :
Fecal colifore lirits and sarple tyres and'frequenefes for influent and effluent BOD and TSS.
DI SCHARGE to San Juan River, Segrent 6, Region 9,' San Juan River Basin.
CLASSIFIED Agriculture, Recreation Class 2, Aquatic Lif e Class 1 Cold.
- 24. PEERLESS RESOURCES, INC.
PERMIT NO.-
CO-0041033 COAL GULCE MINE County:
La Flata L. Dale Larsen, President Drafter:
Kubic 5526 Indian Rock Road Phone:
320-F333 x3491 Salt Lake, UT 84127 (801) 272-2365 NEW PERMIT f or discharge of coal cining surface runoff fror Category 02, Subcategory 1, Coal Mining Sedicentatiot Ponds.
DISCHARGE to Coal Gulch, Segtent 13b, Region 9, Anicas & Florida River Sub-basins, San Juan River Basin. CLASSIFIED Agriculture, Recreation Class 2, Aquatic Life Class 2 Cold.
- 25. PUBLIC SERVICE COMPANY OF COLORADO PERMIT NO.:
CO-0003121 George P. Green-County:
Weld' P.O. Box 640 Drafter:
Shukle Denver, Colorado 80201-Phone:
320-8333 x 3725 (303) 797-4122 A)END) INT to permit to clarify monitoring location, incorporate otitted effluent requirements, and eliminate inapplicable effluent requirements.
DISCHARGE to South Platte River, Segment 1,
So. Platte River Basin.
CLASSIFIED: Agriculture, Recreation Class 2, Aquatic Life Class 2 Ware.24.
DISCHARGE to St.
Vrain Creek, Segment 3,
So.
Platte River Basin.
CLASSITIED Agriculture, Recreation Class 2, Aquatic Life Class 1 Wart.
- 26. SNOWMASS COAL COMPANY PERMIT NO.:
CO-0029599 KORTE THOMTSON CREEr MINT County:
Pitkin Scott Jones Drafter:
Holmer 1.0. Box 960 Phone:
320-8333 x3727 Carbondale, CO E1623 (303) 963-3440 AMENDPENT te permit for purpose of modifying discharge point 001, and adding discharge point 007 and BAT limitations f or the f acility.
- DISCHARCE to North Thocpson Creek, Segeent 10, Roaring-Tork Ffver Sub-tasin, Upper Colorado River Basin.
CLASSITIED Water
- Supply, Agriculture. Recreation Class 2. Aquatic Lift Class 1 Cold.
i
', TW; *: r!!.D ~ 1:*:.1
' I.TI. !!' : SFi F ":'
It -D ' 2 7 : U rFris Tee r Cr,im t y :
-Frerert T.O. Ee> OW Praft<r:
Pec'] < y
-Canon City, CO F1012 Phont:
320-F333 x3726 4
-(303) 7f4-3362 RENEWAL t o pe rr i t for discharp of wint wat er anc' sedirentation ponds fror Cat egory - 02, Subcategory 2: coal cining.
Upon issuancc of this renewa3 perrit the existing pereft will automatically be inactivated.
DISCHAPCE to South Oak 6 Oak Creek, Segment 14, l'ppe r Arkansas River Basin. CLASSIFIED Agriculture, Recreation Class 2, Aquatie. Life Class 2 CoJd.
- 28. TOWN OF WELLINGTON PERMIT NO.:
CO-0001032 Gary.W(st. City Manager.
County:
Larieer
,3735 Cleveland Ave.
Drafter:
Ne l son Wellington, CO 80549 Phone:
320-8333 x347E (303) 566-33E1 AMENDVENT to permit for purpose of recoving If f t station rrnitoring since an a]arr has been added.
DISCHARGE to Boxelder Creek, Segrent 13, Cache La Poudre Rive r Sub-barin, S. Platte River Basin.
- 29. WESTERN TUELS-l'TAH, INC.
' PERMIT NO.:
CD-0038024 Toincy.Raye, Senior Engineer County:
Rio Blanco 405 Urban St., Suite 305 Drafter:
Kubic Lakewood, CO-80228 Phone:
320-8333 x3491
'(303) 986-9626 AMENDMENT to percit for purpose of the addition of 13 new outfalls, discharges froc exploration holes.
DISCHARGE to tributaries to Red Wash and the White River, Segtent 13a, White River Sub-basin, Lower Colorado River.
Easin.
CLASSIFIED Agriculture,. Recreation Class 2, Aquatic Life Class 2 Warc.
TNACTIVATIONS OF PEFEIT(S):
- 30. TOWN OT COLLBRAN PERMIT NC.:
CO-0021563 R. Bruce Scith-County:
Mesa 217 Ele St.
Co11 bran, CO S1624 Facility has been replaced with a new plant, Pe rei t No. CO-0040487, and will no longer be used. DISCHARGE was to Plateau Creek.
. 31.' CORN CONSTRUCTION PERVIT NC.:
CO-0032344
- Albert Ruckcan County:
.Ccrfiele
.P.O..Eox 1240 Phonc:
(303) 434-7301 Grant' Junction, C0 835CO Grars
- pii Li t ne -1(.nrer 1t ing urei. PISCLAFCI vu to Cc1cracc Piver.
a:
3.". CLFAI CFTTF SF: 35' CCFF.
TEPM :
NO..
C^-( ( 3 ' ?
Trant Ruthe rf er(
Count -
Clear Creel Bos F99 Phone:
(303) 569-2261 Georgetowr., CO 80444 Tacility 'is no 3cere r discharginy. D]SCHARCE was to Clear Creek.
- 33. ' CLEAR CREEE SKIING C0FF.
PERMIT NO.:
CC-0023795-Frank Rutherford County:
Clear Creek Box 899 Phone:
(303) 569-228P Georgetown, CD 80LLL Facility is no longer discharging. DISCHARGE was to Clear Creek.
3L.
CITY OF RITLE PERMIT NO. -
CO-002013 7
.Thoras Shoup County:
Ga rf ield 337 East ave.
Rifle, CO F1650 Pe rci t Nc. CO-0020117 has been replaced with Ferrit No. CO-00LC73E.
- 35. MARTIN EEY CONST. CO.
PERMIT NO. :
CO-0039E37 Marshall Kramer.
County:
Adars 2901 S. Santa Fe Phone:
(303) 761-18E3 Englewood, CO 80150 The operation has been cocpleted. DISCHARGE was to' Clear Creek.
- 36. STUTE CONST. CO.
PERMIT NO.:
CO-0038105 Leona Stute County:
Larieer 4305 E. Harmony Rd.
Phone:
(303) 226-5387 Ft. Collins, CO 80525 The gravel pit has been shut down. DISCHARGE was to Arthur Lateral.
e
9:ste drtative N t rrrina ir-:
Tentative de t e rrina t ions havt be( r n.a d(
by t he S t a t t-of Colorade in conjunction with the United States Environmental Protection Agency relative to effluent liritations and other conditions to bt ferosed in these percits.
Thes,e I f ri t a t i on.=
and conditions ferlement all arplicable statutes and regulations, including state water quality standards.
i i,
Public Meerings:
L' Pursuant to 25-8-502(3)(b) interested persons may subri t a written request, g
for good cause shown, for a public reeting on the tentative determination.
j Such request shall be received by the Division by May 15, 1985 which is thirty f
(30) days frot the date of public notice.
The Division will consider all requests and cay grant a public meeting for good cause shown.
Any public l
meeting will be held within sixty (60) days of the date of public notice.
Public Coenents:
Pursuant-to 25-E-503( 3 )( c ) interested persons eay subrit written coceents on the tentative determination.
Such comments must be received by the Division by May 30, ICES, which is forty-five (45) days frot the dr.t e of public i
notice.
All cc: rents re ceived prior to said date will be considered in the f erculation of final conditions and licitations to-be included in the percit.
public ceeting is held, the period for public co= rent shall close sixty If a (00) days fellowing the date of public notice.
Requests for public meeting and pu;'.ic co= cents ma'y be directed to the Colorado Departcent of Health, Water Quality Control Division, Permits and Enforcement Section, 4210 East lith Avenue, Denver, Colorado 80220.
r Following the public comment period and the public meeting, if one is held, the Department will issue or ~ deny the final permit.
Interested parties then have thirty (30) days to request an adjudicatory hearing on the permit.
I, Further Inforeation:
i The draft perrit is available for inspection at your County Commissioner's Office. and County Health Department, or can be obtained by writing to the Division at the above address and paying a stall charge per page for copying j
fees.
Interested parties cay also contact the Water Quality -Control Division's District Engineer for the disroet in which the discharge is located.
j Pt'E;.1C NOTICE N3BER: CD-05-Ot i
l
COLORADO DEFAFTMENT OF HEALTH
' Water Quality' Control Division 4210 East lith Avenue Denver, Colorado 80220 RATIONALE-AMENDIENT NO: 1 PUBLIC SERVICE C@tPANY OF COLORADO Fort St. Vrain Power Plant PERMIT NO: CD-0001121 WELD COUNTY By letter of March 21, 1985, PSC has requested adjudication of the } ercit.
This amend:ent is for the purpose of addressing the pertinent items of that letter which are.as follows:
.1)
Clarification of monitoring locations for the net TSS lief tation. This itet ressits in a codification to pages 2, 3 and 4 of the permit.
- 2) Clarification of monitoring for the turbine drain, reactor building drain, and the sewage treatment plant. Numeric limitations-are not being imposed. This itec results in a modification to rage 6 of the permit.
- 3) Inserting temperature and oil and grease limitations for discharge point 002 which 'had been omitted. This itec results in a change to page 4 of
~
-the permit.
- 4) Elimination of the 7 day average net TSS limitation for discharge points
- 001 and 000. This change is appropriate as.the state effluent standard is not applicable when technology based limits exist.
, 5) -Page-5 of the permit has been modified to include alternatives to the' annual monitoring requirement for the 126 priority pollutants.
Special Monitoring i:
Because of dilution that is encountered for effluents fro: 1) the turbine building drain 2) the reactor building drain and 3) the sewage treatment.
plant, special monitoring vill be, required to deconstrate proper treatment of these vaste streacs. The monitoring location for the turbine and reactor building drains shall be prior to eixing with other flows. Monitoring shall be for total suspended ' solids, pH and oil and grease on a monthly basis. The sample type shall be a-grab.
The monitoring point f or the sewage treatment plant /shall be at the outfall from the facility but prior to mixing with other flows. Monitoring shall be for total suspended solids, BOD and fecal-coldfor=. The sample type should be a grab sample except for BOD which will bela cocposite saeple. The frequency shall be monthly.
Shoul'd inadequate treatment of the vaste streams be identified by the tenitoring, the Divisior. cay rodify the permit te impost noteric IItitations at. the respe:tive. pointt, however, no nureric lititctient will bc' imposed'at
~
- r.i t t ir<.
COLORADO DEPAR2 Eh~r OF HEALTH k'ater Quality Centrol Divisien Rationale - Page 2 Permit No: -CD-999112]
Special Monitor!.nr (Continued)
In order to prevent future problems on permit interpretation, several pages of the rationale have been changed to parallel the clarifications of this
. amendment.
A concern previously raised by EPA is the inposition of effluent limitations on internal waste streams as allowed by 40 CFR Section 122. 4S(i).
The wording in this section states that limitations "may be imposed" but does not state that it is mandatory. Based on the fact-that the permit requires monitoring of the individual waste streams and is conditioned to be reopened if treatment cf the waste streats is inadequate, it is the division's position that EPA's cor.cern has been properly addressed.
9-Robert J. Shukle March 27,1985
T COLORADO DEPARTMENT OF HEALTH.
LWater Quality Control Division 4210 East 11th Avenue
- Denver, Colorade 80220 RATIONALE PUBLIC SERVICE COMPANY OF COLORADO =
FT. ST. VRAIN POWER PLANT PERMIT NLMBER: CO-0001121
' WELD COUNTY FACILITY TYPE:
Industrial - Renewal SIC NO.:
4911 LOCATION:
In Sections 34 and 35. T4N, R67W and Sec. 3, T3N, R6.7W, ' 6th Principal Meridian
-LEGAL CONTACT:
George P. Green Manager, Productior. Services P. O. Box 640 Denver, CO 80201 (303)+797-4122 LOCAL CONTACT:
John W. Cah:
P. O. Box 361 Platteville, CO 80651 (303)+758-2253 RECEIVING WATERS:
001A + B, and 003 - South Platte River 002 and 004 - St. Vrain Creek SCB-BASIN, SE@iENT:
South Platte River Basin - Segment 1 CLASSIFICATION:
South Platte, Segment 1:
i.
Recreational, Cla'ss 2 Aquatic Life, Class 2, (Warm)
Agricultural Use St. Vrain, Segment 3:
Recreational, Class 2 Aquatic Life, Class 1 (Warm)
Agricultural Use Q7 yp (Stres: low-flow):
South Platte = 20.1 cfs St. Vrain = 35 cfs
~ DESIGN FLOW:
Actual System capacity at maximum output = 4.5 MGD, see FACILITY DESCRIPTION for details.
The actual maxicue flow is estimated to be 3.5 cgd.
i i-1:
1-
COLORADO DEPAR*D:ENT OF HEALTH Water Quality Control Division Rationale - Page 12 PERMIT NUMBER: CD-0001121 APPLICABLE RULES AND REGULATIONS:
B.)
State _(Continued)
Paraceter St. Vrain South Platte Nitrite (N0 )
3.73 mg/l 2.36 cg/l 2
Arsenic 0.373 mg/l 0.236 mg/l Cadmiu:
0.0075 mg/l 0.0047 mg/l Chromium (tri) 0.373 mg/l 0.236 eg/l Chrocium (hex) 0.1E7 =gil 0.11E eg/l Copper 0.112 mg/l 0.11E mg/l Lead 0.373 mg/I 0.116 eg/l Me rcury 0.0004 mg '1 0.00024 eg/l Nickel 1.492 eg!l 0.471 eg/l Seleniut 0.149 eg/l 0.094 mg/l Silver 0.001 mg/l 0.0005 eg/l Zinc 0.746 mg/l 0.66 eg/l Total Iron 22.38 eg/l 5.89 eg/l Total Manganese 7.46 mg/l 4.71 eg/l EFFLUENT LIMITATIONS, RATIONALE AND MONITORING FREQUENCIES:
The following table summarizes effluent limitations, rationale and monitoring frequencies and locations:
A.)
Discharge Point 001 - South Platte Monitoring Monitoring Parameter Limitation Rationale Frecuency Location Flow N/A M onitor Weekly 001B 001A Res.idual Chlorine
- 0.014 mg/l Weekly at 001A (daily max)
Stream Standard.
Zinc 0.66/1.0 mg/l Stream Standards /
001B BAT for cooling tower blowdown Monthly Ac=onia Nitrogen N/A Monitor only Monthly 001B Total Suspended Solids 30/100 =g/l State Effluent (net)
Std./BPT for low volume vastes Weekly Oil and grease 10 mg/1, no State' Effluent 001B sheen Standard Weekly Phosphorus, Total N/A Monitor Monthly 001B Temperature 30 C (E6 F)
Stream Std.
Weekly at 001A 0
0 001A 001B
- Cu 001E Fe 001L Cr 001B 126 P.P......
001E pE
- Lecause the p resent detection level f or chlorine. is 0.r> rt!!, TEC levcis reportee EO.05 er '1 ti'.1 bc considere d it. ecrr:fancs until suer dttect:r-levt: Is ::eerei.
- *:r
' tzr se r t he net fritttier reezireren:s of :nt p e r-f t. -
r COLORADO DEPARTMENT OF. HEALTH Water Quality Control Division Rationale - Page 13 PERMIT NLMBER:
C0-000112]
EFFLUENT LD1ITATIONS, RATIONALE AND MONITORING FREQCENCIES:
A.) ~ Discha rg e Point 001 - South Platte Monitoring Parameter-Limitation Rationale Frequency Total Copper 0.118 mg/l Stream Standard Monthly-Total Iron 1.0/1.0 eg/l EPT/ BAT for cetal Monthly cleaning wastes Total Chromiu 0.2/0.2 mg/l BAT-cooling tower Monthly blowdown 126 Priority Pollutants, No detectable BAT Annually except Total Chromiu amount and Total Zinc pH 6.5-9.0
'Strea: Standard Ueekly
.B. ) Discharge Point 002 - St. Vrain Creek Monitoring Monitoring Parameter-Limitation Rationale Frequency Frequency Flow N/A Monitor Weekly 002 Residual Chlorine 0.022 mg/l Streac Standard Weekly 002 (daily caximu=)
Zinc 0.75/1.0 mg/l Stream Standard /- Monthly 002 BAT Ammonia nitrogen N/A Monitor Monthly 002 Total Suspended Solids 30/100 mg/l State Effluent Weekly (net)'
Std./BPT 011 and greass 10 mg/1, no State. Effluent 002 sheen Standard Weekly Phosph'rus, Total N/A Monitor Monthly 002 o
Te=perature 30 C(86 F)
Strea: Standard Weekly 002 0
0 Total Copper 0.112 Stream Standard M ont hly 002 Total Iron 1.0/1.0 eg/l BFT/ BAT for Monthly 002 metal cleaning wastes Total Chrociu:
0.2/0.2 eg/l BAT-cooling-Monthly 002 tower blevdoen 126 Priority Fellu'tants, No detectable BAT Annually 000 except Total Chromiuc amount and Total Zine pE 6.5-9.0 Strect Standard Weekly 002
- M:enitor per-the nct licitation requirements of the pctrit.
COLORADO DEPARTMENT OF HEALTH Water' Quality' Control Division Rationale - Page 16
' PERMIT NetBER: CO-0001121 DISCUSSION:
A.)
Chlorine St. Vrain - 002 (22.6 MCD + 3.5 MGD) 0.003 eg/l
=
(3.5 MGD)
O.0224 mg/l B.)
Phosphoa s Because phosphates may be used in the plant, monitoring for phosphorus remains as a condition of this permit.
C.)
Zine Streat standards for zine dictate 30-day average levels; BAT levels for cooling tower blowdown are more restrictive as daily maximums, hence BAT levels dictate daily maximum levels.
D.)
Ammonia Ammonia levels are not limited in this permit. Ammonia levels are relatively high in the intake water and data indicates that the facility reduces ammonia nitrogen levels. Monitoring for ammonia nitrogen will still.be required.
E.)
Total Suspended Solids State Effluent Standards (10.1.4) Lf or TSS are 30 mg/l as a 30 day average and 45 mg/l as a 7-day average. These standards apply to all discharges except storm runof f waters and agricultural return flows.
BPT effluent limitations for TSS for low volume vaste are 30.0/100.0 eg/l as 30 day average and daily maximu=s, respectively. The above standards will be applied to the final discharge.
The Nuclear Regulatory Coc=f ssion (NRC) requires a cinicut flow'of
^
1,100 GPM through the North Yard Drain. If this 1,100 Gn! eini=u flow is not being caintained by releases f roc the main cooling tower l
or service water cooling tower, the flow is augmented by additional discharges f roe the NRC required storage ponds. This operational mode shall be adopted as a best management practice.
In order to use net licitations, the permittee must conitor process water af ter the settling ponds, but before the. storage ponds and at the conitoring points 001F or 002 and the net TSS level shall be reported.
r
- e s.
% r-
%e Fercit No.:
Co-0001121 County: Weld AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In cocpliance with the provisions of the Federal Water Pollution Control Act, as acended (33 U.S.C. 1251 et. seq.; the "Act") and the Colorado Water Quality Control Act, (25-8-101 et. seq., CRS, 1973 as amended)
PUB'.1C SERVICE COL'PANY OF COLORADO is authorized to discharge from their Fort St. Vrain generating station located in Sections 34 and 35, Township 4 North, Range 67 West and Section 3, Township 3 North, Range 67 West, 6th Principal Meridian to the South Platte River and St. Vrain Creek in accordance with effluent limitations, monitoring requirements and other conditions set forth in Part 1, Il and 111 hereof.
This permit shall become effective thirty (30) days af ter the date signed by the Director. Should the applicant choose to contest any of the ~ effluent limitations, monitoring requirements or other conditions contained herein, he must comply with Section 24-4-104 CRS 1973 and the Regulations for the State Discharge Permit System. Failure to contest any such effluent limitations, monitoring requirement, or other condition is consent to the condition by the Applicant.
This permit and the authorization to discharge shall expire at midnight, Decenber 31, 1989 Issued this Y ' day of d h.lN-s
,~y*-
.I'Y & V6(c3C]
- ' Y-
),. 9[' @_
' ~ '
COLORADO DEPARTMENT OF HEAI.TH
. ^.
/
m.,
4
- U. -'
- .J Ga broet~ an
~2i f f Director Ucter Quality Control Division Amonied 12/E2
'L
.I Pa rt I Page 2 of 19-Permit No.:
CD-000212]
A.
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -
SEE AhT ADDITIONAL REQUIRDfENTS UNDER PART III.
1.
EFFLUENT LIMITATIONS - ALL DISCHARGE POINTS r
(a) There shall be no discharge of polychlorinated bipheny] co= pounds such as those comconly used for transformer fluid.
(b).Neither free _available chlorine nor total residual chlorine cay be discharged from any unit for more than two hours in any one day and not more than one unit in any plant may discharge f ree available or total residual chlorine at any one time unless the' utility can demonstrate to the State _ that 'the units in a particular location cannot operate at or below this level of chlorination.
(c) As a best management practice, the combined _ flow rate of water from the main _ cooling tower, service cooling tower and flow directly from the NRC ' storage ponds in the North Yard Drain shall be managed so as to minimize the exceedance of'the 1100 gp: base flow requitsd by NRC.
Amended
TAri 1 FaFe 3 of lo Permit No. CO-0003121 A.
. ETTLUENT LIMITATIONS AND MONITORING ' rQUIREMENTS - SEE ANY ADDITIONAL REQUIREMENTS UNDER PART III.
2 Effluent' Limitations - Discharge Point 001 to the South Platte River l
During the period beginning immediately and lasting through December 31, 1989 the permittee is authorized to discharge from outf all(s) serial number (s) 001, subject to the following effluent limitations and conditions:
Effluent Parameter Discharge Limitations Maximum k'eight Maximum Concentration kg/ day (1bs/ day) eg/l eg/l 30-day avg. a/ Daily max.
30-day avg. a/
Daily Max. c/
Flow N/A N/A N/A N/A R2sidual Chlorine
- N/A N/A N/A 0.014
-Totc1 Zine N/A N/A 0.66 1.0 Totc1 Copper N/A N/A 0.118 0.24 Tots! Iron N/A N/A 10 1.0 Tots) Chromiue N/A N/A 0.2 0.2 Total Suspended Solid, net **
N/A N/A 30 100 126 Priority Pollutants, except total
--NO DETECTABLE AMOUNT--
chromium and total zine The temperature of the discharge shall not exceed 300C (860F) at anytime. Oil and grease shall not exceed 10 mg/l and there shall be no visible sheen.
If a visible sheen is observed, corrective action shall be taken immediately.
'The pH shall not be 'less than 6.5 standard units nor greater than 9.0 standard units c/
a/ This limitation shall be determined by the arithmetic mean~of a minimum of three (3) samples taken on separate weeks in a 30-day period (minimum total of three (3)
~
samples);
b/ This limitation shall be determined by the arithmetic mean of a minimue of three (3) samples taken on separate days in a 7-day period (minimum total of three (3) samples);
c/ This limitation shall be determined by a single properly preserved sample as required under menitoring requirements - Saeple Type.
-CSee also, PART I A. 1. (F) above.
- TSS shall be monitored at two different locations so that net limitations may be applied:
'1) raw water supply after the settling ponds but prior to the holding ponds shown in Figure 2.
(2) at monitoring point 001E or 002, depending on discharge point.
Both of these values and the resultant net 1S5 value shall be reported on the Discharge Monitoring Report Form.
Amended
TAci I Pare 4 of 10 Perit No. CO-0001121 A.
EFFLUENT LIMITATIONS AND MONITORING REQl'IREMENTS - SEE ANY ADDITIONAL REQUIREMENTS UNDEi PART 111.
3.
Effluent Limitations - Discharge Point 002 to St. Vrain Creek During the period beginning immediately and lasting through December 31,1989 the permittee is authorized to discharFe from outfall(s) serial number (s) 002, subject t-the following' effluent limitations and conditions:
Effluent Parameter Discharge Limitations Maximum Weight Maximum Concentration kg/ day (1bs/ day) ag/l ag/l 30-day avg. a/ Daily max.
30-day avg. a/ Daily max. c/
Tiow N/A N/A N/A N/A Residual Chlorine
- N/A N/A N/A 0.022 Total Zinc.
N/A N/A 0.75 1.0 Total Copper N/A N/A 0.112 0.224 Total Iron N/A N/A 1.0 1.0 Total Chroeium N/A N/A 0.2 0.2 Total Suspended, net N/A N/A 30 100 126 Priority Pollutants, except total chromium and total zine
NO DETECTABLE AMOUNT--------
The temperature of the discharge shall not exceed 300C (860F) at anytime. - Oil and grease snall not exceed 10 mg/.1 and there shall be no visible sheen.
If a visible sheen is observed, corrective action shall be taken immediately.
The pH shall not be less than 6.5 standard units nor greaer than 9.0 standard units c.
a/ This limitation shall be determined by the arithmetic mean of a minimum of three (3) samples taken on separate weeks in a 30-day period (minimum total of three (3)
~
samples);
b/ This limitation shall be determined by the arithmetic mean of a minfeum of three (3) samples taken on separate days in a 7-day period (minimum total of three (3) samples);
c/ This Ifmitation shall be determined by a single properly preserved sarple as
~
required under monitoring requirerents - Sample Type.
CS2e also PART I.A 1 (b) above.
- TSS shall be monitored at two different locations so that ret Ifeitstions eay be applied:
(1) raw water supply af ter. the settling ponds but trier to the holding conds showr in Figure 2.
(2) at monitoring point 001B or 002, depending on discharge point.
Both of these values and the resultant net TSS value shaII be reported or. the Discharge Monitoring Report Form.
Amende/
w-
~ '. :o -
~
1
! s re i t Nr.
e -r.-r]
A.
ETTLUE!!! L1MITAT10NS A*;D MONITOR 1NG REOUIRE'*LNTS (Cont inued)
- 4. Monitorinn Requirerints -
0"'
1,d 00' In order to obtain an indication of the nrobable~ compliance or noncoeplia-ie witt the ef fluent liritations specified in Part 1, the territtet sball enniter all effluent parareters at the following required frequencies.
~ Effluent Pararcter Measurerent Frecuene. d,e/
Sarrie Tvre f.
Flow, egd Weekly.
I nst ant a +c-u =
nr rent inu =c Residual Chlorine, t r'll Weekly at O'. i A Gra6 and 002 Zinc, eg/l Ponthly C: = >
Aeronia ni t rogen, rp 'l Monthly Grat Total Suspended Solids, net, eg/l Weekly Grab Phosphorus Monthly Grab or Corrosite Oil'and grease,-eg/l Weekly Grab Temperature Wee?Iy at 001A Grab and 002 Total Copper Monthly Crab Total Iron Monthly Grab
. Total Chroefue Monthly.
Grab 126 Priority Pollutants, except Cr and Zine Annually (1)
Grab
.pH Weekly Grab d/ Monitoring is required only during periods of discharge. If *nc discharge" occurs, this shall be' reported at the~specified frequency. (See Part E.)
o_/ When the measurement frequency indicated is quarterly, the sarples shall be collected during March,' June, September and December, if a continual ~ discharge occurs. If the discharge is intermittant, then saeples shall be cellected during the period that discharge occurs.
f/ See definitions, Part B (1) As an alternative to analyzing for the 126 toxic pollutants on a yearly basis the
- permittee may subeit the following:
- 1. A list of the certified analvtical certents et all biofouling and emin:enance foreulations used (canufacutter's certification as to contents and prierity pollutant status); and-
- 2. Engineering calculations deconstratirp that any of tht-triority po!!utants present in the maintenence cheefcals would not be detectable in the coeling tower discharge using appropriate analytical cethods.
(These calculations cust be based on the cooling tower discharge only and should not include d!!ution by any other effluent streams.)
If checical usage, both. type and quantity, has not changed during the year this will be-sufficient to derenstrate coepliance with the lieftatier.
Anended
77 j
e a
PART 1 Page 6 of 19 Pe rmi t No.:
CO-0001121.
A.
EFFLUENT LIMITATIONS AND MONITORING REQUIRDIENTS (Continued)
- 4. Monitoring Requirements -. 001 and 002 Self-monitoring samples taken in compliance with the monitoring
-requirements specified above shall be taken at the following location (s):
Monitoring Point 001A - at-the parshall flume at the outf all from the f are pond f or temperature and residual chlorine; and Monitoring Point 001B -
parshall flume.at the Goosequill Ditch for all other parameters when discharge is via'the 001 discharge point.
Discharge Point 002, at the parshall fluce in the drainage slough prior to entering-St. Vrain Creek. All discharge and conitoring points are as
- shown on Tigures 1 and 3 of this permit. TSS levels must be monitored in plant for application of net licitation. See ** on previous two pages of this permit.
- 5. Effluent Licitations - Discharge Points 003, 004 and 005 During the period beginning im:ediately and lasting throuFh June 30, 1968 the percittee is ' authorized to discharge f rom outf all('s) serial number (s).
003, 004 and 305, subject to the following effluent licitations and conditions:
003 - This discharge shall consist of South Platte River water and shall contain no heat or other chemicals or material other than that removed from the intake screens.
-004 - This discharge shall consist of St. Vrain Creek water and shall
~
-contain'no heat or other chemicals or materials other than that removed from the intake screens.
005 - This discharge shall consist of sluiced water from the St. Vrain
)
Creek intake and shall contain no heat or other chemicals or materials other than that removed froc the intake.,
No monitoring of flow or other para eters will be required at these points.
- 6. Special Monitoring The percittee shall monitor for TSS, BOD and fecal colifore at the sewage treatment plant outfall and for TSS, oil and grease and pH prior to eixing with other flows for the turbine and reactor building drains. Monitoring shall be on a conthly basis and BOD shall be a co:posite sacple while the other paraceters shall be grab samples. No numeric limits shall apply at these points. The monitoring is to serve as an indicator of facility perfortance. If reported analyces show inadequate treatment, the Division
~
may modify the percit ~ to impose numeric licitations for these parameters.
Anended