Alternate calculations submitted by the developer
are acceptable subject to the Planning Board's finding in their greater
accuracy or currency.
A. Population.
(1) Data for determining population. (Source: Sternlieb,
Municipal Services and Housing Costs.)
|
Unit Type
|
Residents
|
---|
|
Single-family detached:
|
|
|
Two bedrooms
|
2.68
|
|
|
Three bedrooms
|
3.31
|
|
|
Four bedrooms
|
3.72
|
|
|
Five bedrooms
|
4.13
|
|
Single-family attached and townhouses:
|
|
|
Two bedrooms
|
2.68
|
|
|
Three bedrooms
|
3.35
|
|
|
Four bedrooms
|
3.74
|
|
Garden apartment:
|
|
|
Zero bedrooms
|
1.15
|
|
|
One bedroom
|
1.90
|
|
|
Two bedrooms
|
2.81
|
|
|
Three bedrooms
|
3.51
|
(2) Method of calculating population for development.
Determine the total number of dwelling units by type by bedroom count;
multiply each by the resident factor. Add the results of each calculation
to determine the total projected population.
B. School-age children.
(1) Data for determining school-age children. (Source:
Sternlieb, Municipal Housing and Service Costs.)
|
Unit Type
|
Elementary Pupils
|
Secondary Pupils
|
---|
|
Single-family detached:
|
|
|
Two bedrooms
|
0.18
|
0.04
|
|
|
Three bedrooms
|
0.54
|
0.09
|
|
|
Four bedrooms
|
1.18
|
0.11
|
|
|
Five bedrooms
|
1.31
|
0.13
|
|
Single-family attached and townhouses:
|
|
|
Two bedrooms
|
0.18
|
0.04
|
|
|
Three bedrooms
|
0.59
|
0.07
|
|
|
Four bedrooms
|
0.90
|
0.13
|
|
Garden apartments:
|
|
|
Zero bedrooms
|
0.00
|
0.00
|
|
|
One bedroom
|
0.03
|
0.01
|
|
|
Two bedrooms
|
0.30
|
0.04
|
|
|
Three bedrooms
|
0.38
|
0.05
|
(2) Method of calculating school-age children for development.
Determine the total number of dwelling units by type, by bedroom count;
multiply each by the school-age children by level factor. Add the
results of each calculation to determine the total projected school-age
children population by level.
C. Sewage effluent generation.
(1) Data for determining sewage effluent generations.
(a)
Residential use: 100 gallons per person per
day or average five-year usage per person per day for the same residential
land use type (single-family detached, attached or garden apartment)
from actual records (source: Galloway Municipal Utilities Authority).
(b)
Commercial and industrial use: annual usage
to be supplied by the applicant.
(2) Method of calculating sewage effluent generations.
Determine the total number of dwelling units by type, by bedroom count;
multiply each by the sewage effluent generation factor. Add the results
of each calculation to determine the total residential sewage effluent
generation. In addition the total sewage generation from nonresidential
use(s) shall be determined for each identified use. Add this total
to the residential generation to determine total generations.
D. Potable water demand.
(1) Data for determining potable water demand.
(a)
Residential use: 80 gallons per person per day
or average five-year usage per person per day for the same residential
land use type (single-family detached, attached or garden apartment)
from actual records (source: Galloway Municipal Utilities Authority).
(b)
Commercial and industrial use: Annual usage
to be supplied by the applicant.
(2) Method of calculating potable water demand. Determine
the total number of dwelling units by type, by bedroom count; multiply
each by the water demand factor. Add the results of each calculation
to determine the total residential water demand. In addition, the
total water demand from nonresidential use shall be determined for
each identified use. Add this total to the residential demand to determine
total generations.
E. Peak-hour traffic (PHT) generation.
(1) Data for determining peak-hour traffic generation.
|
Unit Type
|
Traffic
(PHT)
|
---|
|
Single-family detached:
|
|
|
Two bedrooms
|
0.70
|
|
|
Three bedrooms
|
0.80
|
|
|
Four bedrooms
|
0.90
|
|
|
Five bedrooms
|
1.00
|
|
Single-family attached:
|
|
|
Two bedrooms
|
0.70
|
|
|
Three bedrooms
|
0.80
|
|
|
Four bedrooms
|
0.90
|
|
Garden apartments:
|
|
|
Zero bedrooms
|
0.60
|
|
|
One bedroom
|
0.60
|
|
|
Two bedrooms
|
0.70
|
|
|
Three bedrooms
|
0.80
|
|
Commercial, retail, per 1,000 square feet gross
leasable area
|
4.35
|
|
Commercial, other, per 1,000 square feet gross
leasable area
|
1.25
|
|
Industrial, warehousing, per 1,000 square feet
gross leasable area
|
0.55
|
|
Industrial, light, per 1,000 square feet gross
leasable area
|
0.50
|
|
Industrial, heavy, per 1,000 square feet gross
leasable area
|
0.93
|
(2) Methods of calculating peak-hour traffic (PHT) generations.
Determine the total number of dwelling units by type, by bedroom count;
multiply each by the PHT factor. Add the results of each calculation
to determine the total residential peak-hour traffic generation factor;
determine the total floor area of commercial and industrial use types;
divide by 1,000 square feet; and multiply by appropriate peak-hour
traffic generation factor. Add the total of residential peak-hour
traffic generation. Add the total of commercial and industrial peak-hour
traffic generation. Given the inclusion of each use type, the total
will be the total peak-hour traffic generation for the project.
F. Data and methods for determining peak stormwater runoff.
Peak-hour runoff shall be determined using the rational formula to
determine the quantity of runoff for a watershed. The basic formula
is:
|
Q=CIA
Where
|
|
Q =
|
Quantity of runoff in cubic feet per second.
|
|
C =
|
Runoff coefficient (consult Design Data Book
for Engineers, Elwyn E. Seelye, John Wiley and Sons, or other reputable
source).
|
|
I =
|
Rainfall in inches per hour for the design storm
frequency, and the time of concentration of the watershed. [Amended 2-19-1980 by Ord. No. 608]
|
|
A =
|
The contributing drainage area, in acres, both within and outside the boundary of the property in review. When using the Soil Conservation Service method as required by § 233-55, procedures outlined in TP 149 and RT 55 shall be used in determining peak flows. [Amended 2-19-1980 by Ord. No. 608]
|
G. Data and methods for determining soil loss.
(1) Calculation of soil loss.
(a)
Soil loss shall be calculated using the Soil
Conservation Service's universal soil loss equation:
|
A = RKLSCP
Where
|
|
A =
|
Amount of soil loss from sheet erosion.
|
|
R =
|
Rainfall factor. [Amended 2-19-1980 by Ord. No. 608]
|
|
K =
|
Soil erodibility.
|
|
L =
|
Slope length.
|
|
S =
|
Slope gradient.
|
|
C =
P =
|
Cover index.
Erosion control practice factor.
|
(b)
Clarification of this method may be obtained
from the local Soil Conservation Service, District Conservationist.
The following publications available from the Soil Conservation Service
may also prove helpful:
[1]
Sediment Pollution and Erosion Control Guide
for Resource Conservation (1970).
[2]
Standards for Soil Erosion and Sediment Control
in New Jersey (1972).
[3]
Controlling Erosion on Construction Sites (1970).
(2) The soil erosion and sediment control plan shall be
for the portion of the tract to be developed and shall contain the
following:
(a)
Plans and specifications of soil erosion and
sediment control measures in accordance with the standards and specifications
for soil erosion and sediment control of the County Soil Conservation
District. Said measures shall apply to all features of construction
on the site.
(b)
A timing schedule indicating the anticipated
starting and completion dates of the development and the time of exposure
of each area of the site which is to be disturbed.
(3) The following principles shall be included in the
soil erosion and sediment control plan:
(a)
Stripping of vegetation, regrading or other
development shall be done in such a way that will minimize soil erosion.
(b)
Maximum precaution shall be taken to retain,
protect and, where necessary, supplement natural vegetation.
(c)
The disturbed area and the duration of exposure
shall be kept to a minimum.
(d)
Temporary seedings and/or mulching shall be
used to protect exposed critical areas during development.
(e)
Provisions shall be made to accommodate the
increased runoff caused by changed soil and surface conditions during
and after development.
(f)
Sediment in the runoff water shall be trapped
by the use of sediment basins or other acceptable methods.
(g)
Sediment basins or other diversion methods sufficient
to protect neighboring properties from harmful effects shall be employed
prior to any on-site grading or disturbances or existing surface material.
(4) This calculation shall be performed for the site in
its unimproved state and for the site in its improved state (during
and after the completion of construction) to determine the potential
increase in soil loss.
H. Municipal impact of development.
(1) Data for determining municipal fiscal impact of a
development.
(a)
Municipal millage rate: current tax rates of
Galloway Township, obtained from the Township Tax Collector.
(b)
Total valuation in dollars of project: to be
provided based on current values by the applicant.
(d)
Total population development: to be taken from calculations performed by the applicant in accordance with §
233-58A.
(e)
Municipal tax revenue generation: calculate
by multiplying the total dollar value of the project by the local
assessment factor and multiplying by the municipal millage rate. Divide
the resulting number by total population development to arrive at
the per capita tax revenue.
(f)
Municipal cost to service the development. Calculate
service cost as follows: divide the current municipal operating budget
by the current population of the Township; multiply the resulting
number by the total population development to determine the municipal
cost to service the development.
(2) Net fiscal impact: subtract the municipal cost to
service the development from the municipal tax revenue generation
to determine the fiscal impact.
I. Operational and capital school district impact.
(1) Data for determining operational and capital school
district impact of the development.
(a)
Operating cost per student: obtained from the
Galloway Township Planning Board based on amount financed by local
taxation.
(b)
School district millage rate: current rate of
Galloway Township and the Greater Egg Harbor School Districts, obtained
from the Township Tax Collector.
(d)
Current available capacity, primary schools:
obtained from Galloway Township School Board.
(e)
Current available capacity, secondary schools:
obtained from Greater Egg Harbor School District.
(f)
Capital cost per student for providing new education
facilities: obtained from the Galloway Township and the Greater Egg
Harbor School Boards.
(g)
Debt constant to determine annual cost of borrowed
capital funds: obtained from the Galloway Township and the Greater
Egg Harbor School Boards.
(2) Methods of determining fiscal impact on the school
districts to be performed for each school district:
(a)
School district tax revenue generation. Multiply
the total dollar value of the project by the assessment factor; multiply
the result by the school district millage rate.
(b)
Project-generated operating costs. Multiply
the number of school age children to be generated by the operating
costs per student.
(c)
Project-generated capital costs. If the number
of school children generated exceeds the current capacity of the Township
schools, determine the project generated capital costs of new school
facilities by multiplying the number of students over capacity by
the capital costs per student for new facilities. Multiply the result
by the debt constant. This gives the annual debt service cost.
(d)
Net impact assessment. Add the operating costs
and capital costs generated by the project, and subtract that number
from the school district tax revenue generation to determine the educational
cost impact of the development proposal.
J. Data and methods for determining educational system
impact.
[Added 3-16-1982 by Ord. No. 688]
(1) The following standards shall be utilized to evaluate
the impact of the project on the Township's educational system:
(a)
Classroom size of 25 students per classroom.
(b)
Site size of one acre per classroom.
(2) The existing school system (total elementary and secondary
classroom and site size) shall be compared to the anticipated enrollment
at the time of buildout of each phase of the project, including all
already approved developments, plus the enrollment estimated from
the proposed project.
(3) To the extent that prior approved planned developments
are constructed, the student generation data utilized in the report
shall include the actual students generated in addition to the estimated
generation data used in the applications for such approved planned
developments. For purposes of calculating educational impact, the
larger of the actual versus projected numbers shall be utilized.
(4) A positive educational impact shall require that existing classrooms and site area will accommodate the proposed project or that plans for such facilities have been approved and will be implemented by the appropriate bond issue, with construction anticipated prior to the occupancy of the proposed project. A short-term adverse impact may be mitigated pursuant to §
233-59E. A comparison shall be provided with respect to each phase of the project. The report shall address both short-term and long-term impact of classroom and site capacity, utilization and location.
(5) The Planning Board shall not accept any educational
impact statement prepared directly or indirectly for a developer by
an employee or official of the regional board of education, the local
board of education or the Township.