HomeMy WebLinkAbout006 - 02/02/1993 - AMENDING CITY CODE RELATING TO WASTEWATER SURCHARGE RATES BASED ON TEST FOR TOTAL ORGANIC CARBON ORDINANCE NO. 6, 1993
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING ARTICLE IV OF CHAPTER 26 OF THE
CODE OF THE CITY OF FORT COLLINS RELATING TO
WASTEWATER SURCHARGE RATES BASED ON A TEST
FOR TOTAL ORGANIC CARBON
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS that the
following Sections of Article IV of Chapter 26 of the Code of the City of Fort
Collins are amended as follows:
Section 1 . That 26-206 of the Code of the City of Fort Collins is hereby
amended by the addition of the following definitions in alphabetical order:
Sec. 26-206. Definitions.
Incompatible (nonconventional) pollutant shall mean any
nontreatable waste product or pollutant including nonbiodegradable
dissolved solids. Excluded from this definition are the
conventional pollutants such as BOO, COD, FOG, TOC, SS, ammonia, pH
and fecal coliform bacteria.
Normal domestic-strength wastewater shall mean wastewater which,
when analyzed by standard methods, contains no more than two hundred
fifty (250) mg/l of TSS, and three hundred (300) mg/l of COD, two
hundred (200) mg/l of BOD, and/or one hundred (100) mg/l of TOC.
Total organic carbon (TOC) shall mean the analytical measurement
of organic carbon using methods specified in 40 CFR, Part 136, as
amended.
Wastewater strength surcharge shall mean the rate system used to
charge intermediate nonresidential users and industrial users whose
wastewater strength is higher than normal domestic strength in the
parameters of BOO, COD, TOC, or TSS.
Section 2. That Section 26-207(2) of the Code of the City is hereby
amended by the addition of a new subparagraph (r) , with the remaining
subparagraphs to be relettered accordingly, which new subparagraph (r) shall read
as follows:
Sec. 26-207. Terms and abbreviations.
(2) Abbreviations:
r. TOC shall mean total organic carbon;
S. TTO shall mean total toxic organics; and
t. USC shall mean United States Code.
Section 3. That Section 26-278(5) is hereby amended to read as follows:
Sec. 26-278. Classification of users.
(5) Category E: Intermediate nonresidential users. An
intermediate nonresidential user is a user listed in
divisions A, B, D, E, and I of the SIC Manual who
discharges domestic-type wastes with a strength in
excess of any of the following parameters:
a. COD greater than three hundred (300) mg/l ;
b. Five-day BOD greater than two hundred (200) mg/l ;
C. TOC greater than one hundred (100) mg/l ; or
d. TSS concentration greater than two hundred fifty
(250) mg/l .
Section 4. That Categories E and F of Section 26-280 of the Code of the
City are hereby amended to read as follows:
Category C l a s s o f Rate
Customer
E Intermediate $1 .35 per 1,000 gallons of water use,
and nonresident - measured wastewater flow, or winter quarter
F ial user water use, whichever is applicable; plus a
Significant surcharge of $0.779 per million gallons of
i n d u s t r i a l each milligram per liter of suspended soils
user in excess of 250 milligrams per liter; plus
a surcharge of $0.628 per million gallons
for each milligram per liter of BOD in
excess of 200 milligrams per liter or a
surcharge of $0.416 per million gallons for
each milligram per liter of COD in excess
of 300 milligrams per liter, or a surcharge
of $1 .206 per million gallons for each
milligram per liter of TOC in excess of 100
milligrams per liter, whichever is
applicable. A minimum
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charge would also be made, if applicable,
as follows:
Size of Water Monthly
meter (inches) minimum charges
3/4 or smaller E 5.63
1 7.46
1 1/2 13.09
2 22.47
3 46.82
4 74.95
6 168.72
Section 5. That Sections 26-281(a) and (c) of the Code of the City are
hereby amended to read as follows:
Sec. 26-281. Wastewater strength or industrial surcharge;
categories.
(a) Industrial and intermediate nonresidential users in
categories E, F, G and H shall also be subject to a monthly
surcharge for excessive strength of BOD, COD, TOC, and TSS in their
discharged wastewater in addition to the base monthly service rate
per volume of water consumed or volume of wastewater discharged.
The surcharge rates shall be based on the extra costs incurred by
the city in surveillance, sampling and testing of the discharges,
for additional operating and maintenance expenses and for any other
action required to identify, handle, process or supplement normal
activities due to the excessive strength, plus overhead charges, and
once established the rates shall be set for in §26-282.
(c) The amount of the wastewater strength surcharge to be billed
each user shall be calculated from one (1) of the following three
(3) formulas, depending on whether the wastewater is more amenable
to testing for BOO, COD, or TOC or on the selection of the Director
in the absence of monitoring:
(1) Cs = Vu [Bc(B) + Sc(S)]
(2) Cs = Vu [CODc(COD) + Sc(S)]
(3) Cs = Vu [TOCc(TOC) + Sc(S)]
Where:
Cs = User' s surcharge for wastewaters of excessive
strength per billing period.
Vu = Volume of water used or wastewater discharged per
billing period.
Bc = Cost of service for treatment of a unit of BOD.
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B = Concentration of BOD from a user in excess of two
hundred (200) mg/l .
Sc = Cost of service for treatment of a unit of TSS.
S = Concentration of TSS from a user in excess of two
hundred fifty (250) mg/l .
CODc = Cost of service for treatment of unit of COD.
COD = Concentration of COD from a user in excess of
three hundred (300) mg/l .
TOCc = Cost of service for treatment of a unit of TOC.
TOC = Concentration of TOC from a user in excess of one
hundred (100) mg/l .
Section 6. That Section 26-282(a) of the Code of the City is hereby
amended to read as follows:
Sec. 26-282. Wastewater strength or industrial surcharges and
categories established.
(a) The schedule of wastewater strength surcharge shall be as
follows:
Excess over Rate per
Parameter (mg/1 ) 1,000 gallons
BOD 200 $0.000626
COD 300 0.000416
TOC 100 0.001206
TSS 250 0.000779
Introduced, considered favorably on first reading, and ordered published
this 19th day of January, A.D. 1993, and to be presented for final passage on the
2nd day of February, A.D. 1993.
0ayorOdly)
ATTEST:
�� �r
City C1e
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Passed and adopted on final reading this 2nd day of February, A.D. 1993.
JJ A A. o (�
Ma r
ATTEST:
City Clerk
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