HomeMy WebLinkAbout2000.10.10_Worksession AgendaPUBLIC NOTICE OF THE MEETING OF THE
OWASSO CITE' COUNCIL
TYPE OF MEETING: Special
DATE: October10, 2000
TIME: 5:30 p.m.
PLACE: Owasso City Mall
Lower Level Conference Room
Notice and agenda filed in the office of the City Clerk and posted on the City Hall bulletin board
at 4 :00 p.m. on Friday, October 6, 2000.
Marcia Boutwell, City Clerk
L Call to Order
Mayor Williams
Discussion Relating to Ladder Track
Chief Allen
Update and Discussion Relating to Alternative Funding Committee for Fire Department
Chief Allen
Owasso City Council
October 10, 2000
Page 2
4. Discussion Relating to Water Issues
Mr Carr
Attachment #4
Discussion Relating to Council Strategic Planning and Goal Setting
Mr Mitchell
6. Report -from City Manager
Mr Mitchell
7. Adjournment
MEMORANDUM
TO: THE HONORABLE MAYOR & CITY COUNCIL
CITY OF OWASSO
FROM: MARCIA BOUTWELL
CITY CLERK
SUBJECT: COUNCIL WORK SESSION SCHEDULE FOR 9/12/00
DATE: October 6, 2000
Information and discussion relating to the following issues is planned for the City Council work
session on Tuesday, October 10th at 5:30 p.m. in the City :Mall Lower Level Conference Doom.
l , discussion Relating to sadder Truck - Chief Allen will discuss the concept of receiving
proposals for the purchase of a ladder truck, and will discuss the proposals received.
2. Update and Discussion ent
Chief Allen will discuss the alternative funding committee established to look at other
sources of funding for the fire department.
3. Discussion Relating to Water .Issues - Mr Carr will discuss the progress being made on the
Water Master Flan and other water - related issues.
4. Discussion Relating to CojLnciL Strate is Plannin& & Goal Setting m Mr Mitchell will
discuss a proposed planning and goal setting for the City Council, as well as proposed
dates.
ATTACHMENT #4
MONTGOMERY WATSON
October 4, 2000
Robert Carr, Public Works Director
City of Owasso
Public Works Department
P.O. Box 180
Owasso, Oklahoma 74055
VIA EMAIL
Dear Mr. Carr:
This letter is to confirm the procedures Montgomery Watson willbe using for the
allocation of the future water demands. Currently Owasso's water service area is limited by
the current city limits. Owasso's service area is directly adjacent to the Rogers and
Washington County Rural Water Districts. As Owasso's population increases the city
limits will begin to increase. Owasso will experiencenew developments in areas where the
water services are provided by the rural water districs. This will pose some challenges
for Owasso in the future. As it currently stands, the Rural Water Districs will rpovide the
water services for those new developments that are outside Owasso's current service area.
However, there is a possibility that in the future Owasso will begin providing service to
new developments that fall outside of Owasso's currnet service area.
Montgomery Watson has developed water demand projections based on the assumption
that the City of Owasso will service all new population in Owasso. We will develop the
capital improvement plan (CIP) assuming Owasso will service all new development
associated with the population growth. The component of projected water depand thatfalls
in the rural water district areas is based on new development only and does not include
any existing customers currently served by the rural water districts.
We will also estimate the impact that the new development outside of Owasso's current
service area, will have on the major improvements such as storage capacity, pump stations,
and major transmission lines. This will give you a conservation CIP (assuming that Owasso
will service all new Owasso water demands both inside and outside the current service
area) as well as an idea of the impact on the CIP if the Rural Water Districts service the
new development within their current service areas.
Please call if you have any questions. Also, we have not received your review comments
on Water Demands Technical Memorandum Number 5. We would like your input on our
projections prior to commencing the modeling for future demands.
Sincerely
Darryl Corbin, P.E.
Principal Engineer
MEG
cc: Roger Stevens, City of Owasso
Ron Cass, Montgomery Watson
Geoff Price, Montgomery Watson
Mari Charza, Montgomery Watson
Technical Memorandum No. 5
DEMAND PROJECTIONS
1.0 INTRODUCTION
This Technical Memorandum (TM) summarizes the methodologies and results of the water
demand projections for Owasso to the year 2020. The basis for the water demands was
developed from the 1998 Owasso Comprehensive flan written by the Community
Development Department. The projected demands were determined using the anticipated
population growth in the city.
2.0 REVIEW OF HISTORICAL INFORMATION
The City of Owasso has experienced steady growth since 1980. Owasso is one of
Oklahoma's fastest growing cities. The population of Owasso in 1990 was 11,150 people. By
1998 the population increased to 17,812 people. The Owasso Comprehensive .Plan lists the
historical data used to determine population projections to the year 2010.
The City of Owasso used data from Tulsa county and the State of Oklahoma to develop their
population estimates. Owasso developed their person per household number using Tulsa
County estimates. Owasso developed their person per household number using Tulsa
County estimates. Tulsa's person per household in 1996 was 2.53. Owasso has remained 8%
higher than Tulsa's person per household, yielding a person per household of 2.73. This
number was used in combination with building permit data to determine the 1998 population
estimate of 17,812 people. Figure 1 shows Owasso's historical person per household data.
Technical Memorandum N
DEMAND PROJECTIONS
The 1998 Owasso Comprehensive flan used historical population data to develop future
projections assuming various growth rates. The growth rates used were a medium growth rate
of 5.12%, a high growth rate of 7.18 %, and a low growth rate of 4%.
The 1978 Owasso Comprehensive Plan predicted the 1990 population to be 11,120 people
using a growth rate of 5.76%. According to 1990 Census data, the actual population in 1990
was 11,151 people, which was very close to the predicted population. the 1998 Owasso
Comprehensive Plan modified the average growth rate to 5.12%, based on the average
growth rate in Owasso between 1990 and 1996. Between 1996 and 1998, Owasso
experienced a growth rate of 7.18%. This 7.18% growth rate was adopted as the maximum
rate Owasso expects to experience. No explanation was given in the 1998 Owasso
Comprehensive Plan for the origin of the 4% growth rate. Figure 2 shows the population
projections developed to the year 2010.
rowth Rate of '7.18% Owasso Growth Fate cat
Figure 2e City of Owasso population projections to the Year 2010
MONTGOMERY
Technical Memorandum No. 5
DEMAND PROJECTIONS
The Owasso Master plan extends to the year 2020 which is ten years past the planning period
of the 1998 (Owasso Comprehensive Plan. Therefore, the population projections from the
study were projected out for 10 more years. The same growth rates were used to extend the
Figure 3e City of Owasso population projections to the Year 2020
Owasso's growth rate has remained steady over the past 20 years except for the accelerated
population increase that was seen in the past few years, Therefore, the growth rate selected
for use in the water demand projections is the 5,12% growth rate, It is expected that in 2005
the population will be 25,000, in 2010 the population will be 32,000, in 2015 the population
will be 42,000, and in 2020 Owasso will have a population of 54,000 people,
Owasso's current city limit encompasses 9 square miles; however, the fenceline land area is
52 square miles, In order to accommodate the projected growth over the next 20 years,
Owasso will be annexing some of the land within the fenceline area.
MONTGOMERY WATSON 5-3
Memorandum Technical
DEMAND PROJECTIONS
The current types of land uses in Owasso are low, medium and high- density residential; rural
residential, commercial, parrs, golf, low, medium and high-intensity industrial; and public.
Table 1 shows the current percentages of each type of land use in Owasso,
Land Use Type
Total Area (acres)
percent of Total Land
Currently Developed
Low- density Residential
2,130
53,6%
Medium-Density Residential
50
High - Density Residential
36
1,0%
Rural Residential
1,026
25.8%
Commercial
2 26
5.6%
Commercial Office
73
1 °y%
Parks
2
0.1%
Golf
22
0.6%
Low - intensity Industrial
51
1,0%
Medium-Intensity Industrial
34
0,0%
High - intensity Industrial
13
003%
Public
339
&4%
Total
3,975
100%
*This is for the currently developed areas
in Owasso. Owasso has 5,760 acres
(9 square miles) of land in the
existing; city limits; however, not all the land
has been developed.
The 1999 estimate in Owasso was 11,812 people. The number of people per acre in the
developed residential area is 5.5 people per acre. The number of people per acre including all
types of developed land uses is 405 people per acre, and the number of people per acre
including all land within the current city limits is 3e1 people per acre.
Owasso recently developed a 20.10 Land We Master elan that, shows the anticipated location
of the growth for residential., commercial, industrial, parks, public, and golf courses.
Currently, the only types of land use that are expected to experience growth are residential,
commercial, and public. The residential land use represents new homes, apartments,
duplexes, and mobile homes that will be built to accommodate the anticipated population
increase. The commercial development consists of stores, restaurants, corporate technical
offices, and commercial offices. The public development includes schools and other
governmental agency offices.
For the purposes of allocating future water demand out to the year 2010, the location of land
use development was taken from the 2010 Lana' Use (aster .Mane For the years 2010 to
MONTGOMERY WATSON 5-4
Technical Memorandum
DEMAND PROJECTIONS
For future residential development, it is assumed that 97% will be low - density residential,
1.5% will be medium - density residential, and 1.5% is high - density residential. The 2010
Owasso Land Use Master flan does not anticipate any further development of rural
residential land uses; therefore, no additional water demand projections will be associated
with rural residential.
The majority of Owasso's development will be in the residential areas; therefore, it is
important to determine the estimated number of dwellings. The number of dwellings is used
to calculate if and when land will be annexed to accommodate the growth. Table 2 shows the
estimated number of dwellings in Owasso assuming 4.0 houses per acre for new residential
developments.
IPopulation increase calculated with respect to 1998 population of 17,812.
?This assumes 2.73 people per household
The majority of the commercial development in Owasso will occur between the years 2000
and 2010. Currently, Owasso is anticipating a large number of corporate offices and
commercial stores to develop between 106th street and 116`k' street along Highway 169. The
approximate amount of land that will be associated with the commercial development
between 2000 and 2010 is 1,280 acres (2 square miles). The commercial development will
probably slow down after 2010 and will then consist of restaurants and retail stores. New
commercial development between 2010 and 2020 is projected to be approximately 64 acres
(0.1 square miles). The total land area associated with commercial development for this study
is 1,344 acres (2,1 square miles).
As the population of the City increases, the need for schools and additional space for
government offices will increase. The land used for public purposes is projected to increase
by approximately 640 acres (1 square mile) over the next 20 years.
MONTGOMERY WATSON 5-5
Table 20 Estimated Number of New Dwellings for Owasso
Year
Increase in Estimated
Number of Now
Estimated Land For
population'
New Dwellings (acres)
2005
7,200
2,633
653
2010
7,000
2,564
641
2015
10,000
3,663
016
2020
12,000
4,396
1 ,000
Total
36,200
13,256
3,314
IPopulation increase calculated with respect to 1998 population of 17,812.
?This assumes 2.73 people per household
The majority of the commercial development in Owasso will occur between the years 2000
and 2010. Currently, Owasso is anticipating a large number of corporate offices and
commercial stores to develop between 106th street and 116`k' street along Highway 169. The
approximate amount of land that will be associated with the commercial development
between 2000 and 2010 is 1,280 acres (2 square miles). The commercial development will
probably slow down after 2010 and will then consist of restaurants and retail stores. New
commercial development between 2010 and 2020 is projected to be approximately 64 acres
(0.1 square miles). The total land area associated with commercial development for this study
is 1,344 acres (2,1 square miles).
As the population of the City increases, the need for schools and additional space for
government offices will increase. The land used for public purposes is projected to increase
by approximately 640 acres (1 square mile) over the next 20 years.
MONTGOMERY WATSON 5-5
Technical Memorandum
DEMAND RO ON
.0 WATER DEMAND PROJECTIONS
The water duties for Owasso were developed during the demand allocation process. The
methods used for the development of the water duties were explained in Tip #3. The types of
land uses are not changing in the future; therefore, we used the same water duties for the 20®
year planning period as were used previously for existing conditions. Table 3 shows the
water duties. Table 4 shows the current water usages.
Table 3® Owasso Water Duties
Current Amount of Developed
Land Use
Water Duty (pd/acre)
Low - Density Residential
593
Medium - Density Residential
130
339
High - Density Residential
1,185
Rural Residential
I-ligh- Density Residential
400
Commercial
31
500
Commercial Office & Corporate Technical
1020
300
Parks
400
Golf
Commercial Office
0
Low - Intensity Industrial
40
400
Medium-Intensity Industrial
51
400
High - Intensity Industrial
400
Public
High - Intensity Industrial
500
Table 4- Current Water Usages In Owasso
Land Use Type
Current Amount of Developed
Total Water Use ( pm)
Land (acres)
Low-Density Residential
130
376
Medium - Density Residential
50
31
I-ligh- Density Residential
38
31
Rural residential
1020
255
Commercial
223
12
Commercial Office
'73
40
Low - intensity Industrial
51
14
Med €ummIntensity Industrial
34
9
High - Intensity Industrial
13
4
Public
339
113
Parks
2
0.50
MONTGOMERY WATSON 5-6
Technical Memorandum
DEMAND PROJECTIONS
3500
3000
WOR
1500
1000
500
Time (Hour of the Day)
Figure 4: Owasso Diurnal Curve
Table 5- Water Demand Projections
Land Use
Average
Day
(gpm)
Maximum
Day (gpm)
Peak Hour
(gpm)
Year
2005
2010
2015
2020
2005
2010
2015
2020
2005
2010
2015
2020
Low-Density
1,139
1,395
1,761
2,200
3,417
4,185
5,283
6,600
5,467
6,696
8,453
8,747
Residential
Med-Density
37
43
52
62
129
156
186
178
206
250
298
Residential
High-Density
39
47
59
72
117
141
177
216
187
226
283
283
Residential
Commercial
523
879
897
915
1,569
2,637
2,691
2,745
2,510
4,219
4306
4392
Public
'174
230
286
342
522
690
858
1,026
835
1,104
1,373
1,642
Parks
M
.56
Industrial
27
Total
1,940
2,622
3,083
3,619
5,764
7,810
9,193
10,801
9,205
12,479
14,748
15,390