HomeMy WebLinkAboutCOUNCIL - AGENDA ITEM - 04/17/2001 - SECOND READING OF ORDINANCE NO. 46, 2001, AMENDING I1
AGENDA ITEM SUMMARY ITEM NUMBER:DATE: April 17, 2001 FORT COLLINS CITY COUNCIL David Meyer
FROM• Gale McGaha Miller
SUBJECT:
Second Reading of Ordinance No. 46, 2001, Amending Chapter 26 of the City Code Relating to
Industrial Pretreatment Local Limits and Requirements.
RECOMMENDATION:
Staff and the Water Board recommend adoption of the Ordinance on Second Reading.
EXECUTIVE SUMMARY:
This Ordinance, which was unanimously adopted on First Reading on March 20, 2001, modifies
wastewater discharge limits applicable to industrial dischargers and sets new limits applicable to
commercial dischargers. The development of the limits was based on current Region VIH
Environmental Protection Agency guidance.
AGENDA ITEM SUMMARY ITEM NUMBER: 16
DATE: March 20, 2001
FORT COLLINS CITY COUNCIL David Meyer
STAFF'
Gale McGaha Miller
SUBJECT:
First Reading of Ordinance No. 46, 2001, Amending Chapter 26 of the City Code Relating to
Industrial Pretreatment Local Limits and Requirements.
RECOMMENDATION:
Staff and the Water Board recommend adoption of the Ordin ding
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FINANCIAL IMPACT:
Industrial dischargers will not have to m hanges to mply with the new discharge
limits. Waste management requirement nee reduce ercury discharges from dental
offices and other commercial dischargers could r o 0 to $150 dollars per month per
discharger.
EXECUTIVE SUMMARY:
This Ordinance mo t es w discharge li its applicable to industrial dischargers and
sets new limits applicable to co chit ers. The development of the limits was based
on cuiicnt Region VIII Environmen orb Eton Agency guidance.
BACKGROUND:
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The gtt, Industrial Pretreatmen# Program is required by the EPA to control the discharge of
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industrial and c ercial sources in order to prevent pass-through of pollutants
and rote' erett with wate clamation facility operations. Federal pretreatment regulations
require th� k. ically-based pollutant limitations that are protective of treatment
facility operation frastructure, receiving water quality, biosolids quality, and worker
health and safety. The limits must be periodically reviewed and evaluated using the current EPA
Region VIII Strategy for Developing Technically-Based Local Limits.
The City's Utility Services has developed these limits using the current EPA guidelines. When
developing technically-based local limits, the amount of each pollutant that can be allowed to
enter a water reclamation facility is determined using the most stringent applicable
environmental standard and the fate of the pollutant though the treatment process. A known
portion is contributed by domestic wastewater sources. Another known portion is used to
DATE: March 20. 2001 2 I ITEM NUMBER: 16
account for low-level background concentrations of pollutants in the receiving stream. Another
portion is reserved as a safety and growth factor. The remaining portion is allocated to industrial
and commercial sources based on the volumes of wastewater they discharge.
Discharge limitations applicable to commercial discharges are a new EPA requirement. These
are mass limitations expressed in pounds per day and can be implemented by imposing specific
limitations or other requirements when needed to assure the City's Water Reclamation Facilities
do not receive more of a pollutant than the facilities are able to treat. This assures compliance
with state and federal standards. A definition for "commercial discharger" was added to address
this new group of dischargers included in the EPA limit development policy:
Changes in the EPA guidelines, stream standards, wastewater volumes and treatment facility
operations have all contributed to changes to the City's local limits. Twelve limitations have
been lowered. The industrial limit for mercury has been aiis ult, of more accurate
information obtained using new low-level analysis methodg �11ie mdusina�h untt for zinc has
been raised to reflect changes in treatment operations. The higher limit for pH wiHT benefit the
treatment process by providing additional alkalinity. Thgjff tits�for aluminum, fluon$e, d Q;a1
cyanide were eliminated because there are no biosohds`staaadida;.stream standards or ot`hetstate
or federal standards applicable to the stream segments to whichthe water reclamation facilities
discharge.
An addition to the types of hauled wastes that can'b`e�a cep the City will allow waste haulers
to bring wastes other than domestic septage to the CiW"r ater Reclamation Facility. It will
allow hauled wastes that are s lai in nature to se ta" �aste and that will not harm the
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wastewater system, to be d'S'charged to ihe�Water ReclahWi Facility. The current permit
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system used to control haulewastes that can be accepted will be continued.
These changes to the City Code must be reviewed and 1jiven formal approval by the
Environmental Protection Agency before they can be ptblished.
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