HomeMy WebLinkAbout~Master - Amending Industrial Pretreatment Local Limits E
ORDINANCE NO. 4504
AN ORDINANCE TO AMEND THE MUNICIPAL CODE OF
I4 THE CITY OF AMES,IOWA,BY AMEDNING SECTION
28.309 THEREOF,FOR THE PURPOSE OF AMENDING
PRETREATMENT LOCAL LIMITS ESTABLISHED
REPEALING ANY AND ALL ORDINANCES OR PARTS OF
ORDINANCES IN CONFLICT TO THE EXTENT OF SUCH
CONFLICT; AND.ESTABLISHING AN EFFECTIVE DATE.
BE IT ENACTED, by the City Council for the City of Ames, Iowa, that:
Section One. The Municipal Code of the City of Ames, Iowa shall be and the
same is hereby amended by amending Section 28.309, Pretreatment Local Limits
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Established, as follows:
"Sec. 28.309 Pretreatment Local Limits Established.
Pollutant Local Limit
(mg/L,Unless Otherwise Noted)
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Acetone 16.4
Ammonia 225
Arsenic 0.03
Benzene 0.05
BTEX 0.75
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Cadmium 0.04
cBOD5 1,800
Copper 0.57
Chemical Oxygen Demand (COD) 2,700
Cyanide 0.84
Lead 0.94
Mercury 0.0056
Molybdenum 0.31
Nickel 9.6
Oil & Grease 300
pH 6.0-10.0 Standard Units
Phenol 1.8
Selenium 0.09
Silver 0.07
Sulfide 2.0
Temperature <65.5°C"
Total Chromium 0.95
Total Kjeldahl Nitrogen 280
Total Petroleum Hydrocarbons 10.0
Total Suspended Solids 1,600
Zinc 3.8
Section Two. All ordinances, or parts of ordinances, in conflict herewith are
hereby repealed to the extent of such conflict, if any.
Section Three. This ordinance shall be in full force and effect from and after its
passage and publication as required by law.
Passed this 27 day of June, 2023,
Renee Tall, City Clerk Jahn A. Haila, Mayor
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