PERMFILE139734

• Permit No: M1997054
• IBM Index Class Name: Permit File
• Doc Name: STORMWATER MANAGEMENT PLAN
• Media Type: D
• Archive: No

PARTI
Page 6
Permit No. COG-500000
B. EFFLUENT LIMITATIONS AND CONDTITONS -PROCESS WATER DISCHARGE
• c. No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted
by the permit issuing authority. In granting the use of such chemicals, additional limitations end monitoring
req.,~rr•,,,~,rs may be imposed.
d. Bulk storage structures for petroleum products sad other chemicals shall have adequate protection so as to
provent any reasonable loss of the material from mtering discharged waters or waters of the State.
2. Tndustrv-Saecifie Ntmterie Limitation
Beginning October 1, 1992 and lasting through September 30, 1997, the pecmittx is authorized to discharge from the
process water outfalls, under the iodttstrial ntegory below, as idmtifiad in their permit certification.
In accordance with the Water Quality Control Commission Regulations for fifflumt Limitations, Section 10.1.3, and
State Discharge Permit System Regulations, Sectiaa 6.9.2, 5 C.C.R. 1002 Z, the permitted discharge shall not
contain effluent parameter caa<cmtratiom which exceed the following limitations:
a. Mineral mining and processing point source category - 40 CPR 436 - subpart B (crushed stone), C
(coasWction sand sad gravel). D (industrial sand), R (phosphate rock) -and all other industrial facilities
covered under SIC Cade 14, exxpt graphite, and those specifically listed in paragraph b, below, and concrete
batch pleats located at any 5tcility otherwise covered by this general permit:
affluent Parameter
1~~GD
'oral Suspended Solids, mgn
ail and Grease, mgn
oral Dissolved Solids, mgn e/
(Colo. River Basin only)
oral Phosphorus (as P) mgn j/
Y -standard units shell remain between 6.5 sad 9.0 c/.
Discharge Limitations
30-Dav Ave a/ 7-Dav Avg b/ Daily Max c/
Report NA Report
30 45 NA
NA NA 10 i/
NA NA Report
NA
NA
Repots
b. Mineral mining sad processing point eourx ategory - 40 CFR 436 - subparts E (gypsum). F (asphaltic
mineral), G (asbeatoe and wolLtstoaite), 7 (barite), $ (fluorspar), L (selines from brine lakes). M (borax). N
(potash). O (sodium sulfate). V (bmtonite), W (magnesite), X (diatomite), Y (jade). Z (novaculite), AF
(tripoli), and asphalt batch phutts located at any faciflty otherwise covered by this general permit:
Limits -There shall be ao discharge of process wastewater into state waters.
Monitoring Reawrements
In order to obtain an indicatron of the probable compliance or noncompliance.with the effluent limitations specified in
Part I.B, the permittee shall monitor all effluent parameters at the following required frequencies.
a. Mineral mining and processing point source category - 40 CFR 436 - subpart B (crushed stone), C
(construction sand and gravel), D (industrial sand), R (phosphate rock) -and all other industrial facilities
covered under SIC Code 14, except graphite, and those specifically listed in paragraph b, below, and concrete
. batch plants located at any facility otherwise coverod by this general permit: