HomeMy WebLinkAbout~Master - Amending Pretreatment Local Limits ORDINANCE NO. 4495
AN ORDINANCE TO AMEND THE MUNICIPAL CODE OF
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:
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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 Established, as
follows:
"Sec. 28.309 Pretreatment Local Limits Established.
Pollutant Local Limit
(mg/L,Unless Otherwise Noted)
Acetone 16.4
Anunonua 225
Arsenic 0.03
Benzene 0.05
BTEX 0.75
Cadmium 0.04
cBOD5 1,800
Copper 0.57
j Chemical Oxygen Demand(COD) 2,700
Cyanide 0.84
Lead 0.94
Mercury 0.01
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
j 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
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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repealed to the extent of such conflict, if any.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 frill force and effect from and after its
passage and publication as required by law.
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Passed this 28`h day of March,2023.
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Renee Hh 11, City Cleric John A. I Iaila, Mayor
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