Classification
|
Units of Use
| |||
---|---|---|---|---|
Single-family dwelling
|
10
| |||
Two-family dwelling
|
20
| |||
Apartment building (each individual apartment)
|
10
| |||
Mobile homes
|
10
| |||
Motels
| ||||
First unit and office
|
20
| |||
Other units
| ||||
Sleeping units
|
5
| |||
Efficiency units
|
7
| |||
Neighborhood commercial (office and small store,
includes commercial/residential buildings, business on premises)
|
20
| |||
Per building
|
20
| |||
Extra toilet beyond 1
|
3
| |||
Extra wash basin beyond 1
|
2
| |||
Other drains (each)
|
2
| |||
Office/light industry, designed shopping, laundromats
| ||||
Primary building
|
10, plus 10 additional units for each quantity
of use equivalent to that of the average residential user
| |||
Extra toilets beyond 2
|
3
| |||
Extra wash basins beyond 2
|
2
| |||
Other drains (each)
|
2
| |||
Car wash
| ||||
Extra points to be based on previous year's
water consumption record, each 1,200 cubic feet
|
1
| |||
Institutions
| ||||
Schools (each 100 pupils)
|
20
| |||
Churches (each 100 members, or fraction)
|
10
| |||
Membership (100 members, or fraction)
|
10
| |||
Nurseries and manufacturing in which a portion
of water use is for off-premises consumption and that certain portion
does not enter the Town's wastewater system
|
(Property owners shall install, at their own
option and expense, a separate water line and meter to accommodate
the nonwastewater stream usage. The portion of their total water usage
as measured by this separate meter shall not be part of the equivalent
use calculation of sewer points.)
| |||
Commercial properties using the Town sanitary
sewer system to dispose of well water
|
(Property owners shall install, at their expense,
a meter to measure well water usage and that usage shall be part of
the equivalent use calculation of sewer points.)
|
Formula I
|
8.34
|
=
|
Conversion factor
| |
QB
|
=
|
Base cost of hydraulic load in dollars
| |
BB
|
=
|
Base cost of BOD in dollars for a limit of 200
milligrams per liter
| |
BI
|
=
|
BOD concentrations as measured in the plant
influent (milligrams per liter)
| |
BL
|
=
|
BOD base limit of 200 milligrams per liter
| |
BS
|
=
|
Concentration of BOD above the limit of 200
milligrams per liter
| |
BSC
|
=
|
BOD surcharge cost per pound
| |
BR
|
=
|
BOD in pounds remaining above base distribution
| |
BSP
|
=
|
BOD treatment cost remaining above base distribution
| |
BC
|
=
|
Allocated cost for treating BOD per year
| |
SSB
|
=
|
Base cost SS in dollars for 200 milligrams per
liter limit
| |
SSL
|
=
|
SS base limit of 200 milligrams per liter
| |
SSI
|
=
|
SS concentration as measured in the plant influent
| |
SSS
|
=
|
Concentration of SS above 200 milligrams per
liter limit
| |
SSSC
|
=
|
SS surcharge cost per pound
| |
SSr
|
=
|
SS in pounds remaining above base distribution
| |
SSSP
|
=
|
SS treatment cost remaining above base distribution
| |
SSC
|
=
|
Allocated cost for treating SS per year
| |
Qu
|
=
|
Flow per year of individual user
| |
Qt
|
=
|
Total flow per year measured at plant
| |
CB
|
=
|
Cost in dollars per user unit
| |
CI
|
=
|
Cost in dollars per year per industry
| |
CI
|
=
|
CBQu + 8.34 (SSS x SSSC + BS BSC) Qu
| |
CB
|
=
|
QB + BB + SSB
| |
Qt
| |||
Where, to determine base cost of BOD:
| |||
BB
|
=
|
BL x BC
| |
BI
| |||
SSB
|
=
|
SSL x SSC
| |
SSI
| |||
BSC
|
=
|
BSP
| |
BR
| |||
BSP
|
=
|
BC - BD
| |
BR
|
=
|
(BI - BL) x 8.34 x Qt
| |
SSSC
|
=
|
SSSP
| |
SSr
| |||
SSSP
|
=
|
SSC - SSB
| |
and
| |||
SSr
|
=
|
SSI - SSL x 8.34 x Qt
|
Formula II
|
8.34
|
=
|
Conversion factor
| |
QB
|
=
|
Base cost of hydraulic load in dollars
| |
BB
|
=
|
Base cost of BOD in dollars for a limit of 200
milligrams per liter
| |
BI
|
=
|
BOD concentrations as measured in the plant
influent (milligrams per liter)
| |
BL
|
=
|
BOD base limit of 100 milligrams per liter
| |
BS
|
=
|
BOD base limit of 100 milligrams per liter minus
the pretreated BOD concentration in milligrams per liter; however,
at no time shall the pretreated BOD value for use in this formula
be less than 30 milligrams per liter
| |
BSC
|
=
|
BOD cost credit per pound
| |
BR
|
=
|
BOD in pounds remaining above base distribution
| |
BSP
|
=
|
BOD treatment cost remaining above base distribution
| |
BC
|
=
|
Allocated cost for treating BOD per year
| |
SSB
|
=
|
Base cost of SS in dollars for limit of 200
milligrams per liter
| |
SSL
|
=
|
SS base limit of 100 milligrams per liter
| |
SSI
|
=
|
SS concentration as measured in the plant influent
| |
SSS*
|
=
|
SSL base limit of 100 milligrams per liter minus
the pretreated SS concentration in milligrams per liter; however,
at no time shall the pretreated SS value for use in this formula be
less than 30 milligrams per liter
| |
SSSC
|
=
|
SS cost credit per pound
| |
SSr
|
=
|
SS in pounds remaining above base distribution
| |
SSSP
|
=
|
SS treatment cost remaining above base distribution
| |
SSC
|
=
|
Allocated cost for treating SS per year
| |
Qu
|
=
|
Flow per year of individual user
| |
Qt
|
=
|
Total flow per year measured at plant
| |
CB
|
=
|
Cost in dollars per user unit
| |
CI
|
=
|
Cost in dollars per year per industry
| |
CI
|
=
|
CBQu + 8.34 (SSS x SSSC + BS x BSC) Qu
| |
CB
|
=
|
QB + BB + SSB
| |
Qt
| |||
Where, to determine base cost of BOD:
| |||
BB
|
=
|
BL x BC
| |
BI
| |||
SSB
|
=
|
SSL x SSC
| |
SSI
| |||
BSC
|
=
|
BSP
| |
BR
| |||
BSP
|
=
|
BC — BB
| |
BR
|
=
|
(BI — BL) x 8.34 x Qt
| |
SSSC
|
=
|
SSSP
| |
SSr
| |||
SSSP
|
=
|
SSC — SSB
| |
and
| |||
SSr
|
=
|
SSI — SSL x 8.34 x Qt
|
*Note: Thirty milligrams per liter value based
on average monthly BOD 5 and TSS effluent discharge limitations established
in the Town of New Windsor's New York State Department of Environmental
Conservation State Pollutant Discharge Elimination System permit.
This value is subject to change as the New York State Department of
Environmental Conservation State Pollutant Discharge Elimination System
permit is changed.
|