HomeMy WebLinkAbout2000.08.08_Worksession Agenda
PUBLIC NOTICE OF THE MEETING OF THE
OW ASSO CITY COUNCIL
TYPE OF MEETING:
DATE:
TIME:
PLACE:
Special
August 8, 2000
5:30 p.m.
Owasso City Hall
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, August 4, 2000.
~lAJ~J
Mar' Boutwell, Cit Clerk
AGENDA
1. Call to Order
Mayor Williams
to
3.
to
Owasso City Council
August 8, 2000
Page 2
4. Discussion Relating to Political Signs
Mayor Williams
Attachment #4
5. Report from City Manager
MrMitchell
6 Adjoumment
MEMORANDUM
TO:
THE HONORABLE MAYOR & CITY COUNCIL
CITY OF OW ASSO
FROM:
MARCIA BOUTWELL
CITY CLERK
SUBJECT:
COUNCIL WORK SESSION SCHEDULE FOR 8/8/00
DATE:
August 4, 2000
Information and discussion relating to the following issues is planned for the City Council work
session on Tuesday, August 8th at 5:30 p.m. in the City Hall Lower Level Conference Room.
1. lliscussion Relating to Water Master Plan .. Mr Carr and representatives from Montgomery
Watson will discuss the water master plan. attachment #2 - water master plan update
and information..
2. Mitchell
attachment #3 -
Bishop.
3. Discussion Relating to Political Signs - In view ofthe upcoming elections, the Mayor asked
for a discussion on the City's sign ordinance relating to political signs. See attachment #4 -
portions of Ordinance #309 relating to political signs.
ity
WATER MASTER PLAN UPDATE
Background
The objectives of this Water Master Plan are to provide the City of Owasso with an
evaluation of the existing water system and recommendations on improvements to
serve the City's water needs now and until the year 2020. The evaluation reviewed the
existing water sources, pipelines, storage tanks, pumps, and controls. The remaining
phase is to identify the least-cost improvements to provide adequate pressures and
flows for all customers under existing and future conditions,
Scope of the Project
@ Verify and update the attributes in the water system computer model that was
created by the City in 1997,
@ Perform a calibration of the computer model to ensure the output of the model
reasonably matches the performance of the actual water system. This task involved
recording pressures at various locations throughout the water distribution system
and then calibrating the computer model so that the results match within 10%,
@ Analyze alternative improvements to the water distribution system to determine the
most efficient manner to meet the water demands both now and in the future, and
@ Develop a phased approach for implementing improvements to the water
distribution
@ Computer analyses indicated the valves. When
closed valves were opened, the water pressure increased by 30 psi.
@ Identified the area north of 86th Street as having low-pressure problems.
@ Determined that water rarely flows out of Ator Tank and stagnation likely occurs.
@ Determined that the key reason for the pressure problems experienced by
during August was a in water supply main.
@ a with
@
@ water into the nity
Development Department's Owasso 10 Plan, the
o Land Use Master Plan Map for Owasso.
@ Run computer model under the 2020 conditions and develop a phased capital
improvement plan for the City of Owasso's water distribution system.
August 3, 2000
MONTGOMERY WATSON
Section
EXISTING SYSTEM ANAL S
1,0 INTRODUCTION
This Technical Memorandum (TM) presents the analysis of hydraulic deficiencies in the
current distribution system and recommended improvement to address current deficiencies.
The information presented here is based on an evaluation of existing system operating
conditions; typical perfOlmance criteria used in the systems of simihu' water utilities, and
commonly accepted industry standards. The "industry standards" are typically ranges of
acceptable values for criteria and are utilized more as a check to confirm that the values
being developed are reasonable.
2.0 SYSTEM EVALUATION CRITERIA
Several system evaluation criteria are important for this project, including adequacies of
water sources, system pressures, maximum pipeline velocities, and water storage volumes.
These hydraulic criteria are discussed in more detail below and a summary of the
recommendations for system hydraulic criteria to be used in existing system performance and
the subsequent development of the master plan are presented in Table 1.
Value
Units
Supply
Pressure
Maximum pressure
Peak I-lour (minimum pressure 1.5 gpmlconnection)
120
pSI
pSI
system storage water source are
values for systems where the primary water source is a water treatment plant or For such a system, the
optimal operating is to size the water source for the maximum day demand and utilize elevated storage
to meet the peak hour As discussed in the text, since Owasso's contracted water source of
does not impose a limit on peak withdrawal rate during the the listed criteria does not apply.
Tulsa can deliver water at a rate than Owasso's maximum day demand under all operating conditions,
then less volume than the criteria may be
MONTGOMERY WATSON
4-1
Section 4
3.1 Storage Analysis
The required total system storage volume consists of three components: 1) operational
storage, 2) emergency storage, and 3) non-usable storage. These are discussed below.
Operational storage is the quantity of water required to moderate daily t1uctuations in
demand beyond the volumetric capabilities of the Tulsa connections. Water must be stored to
supply the difference between the peak demands and the capacity of the water sources.
Operational storage is then replenished during off-peak hours when the demand is less than
production. The storage volume is sized such that no net change in water storage occurs over
a 24-hour period during the day of maximum demand. The quantity of operational storage is
a judgment decision based on knowledge of the particular system's demands and operations.
A typical recommendation by the American Water Works Association (A WW A) is to
provide operational storage volume capacity equal to one-quarter of the demand experienced
during the maximum day.
The volume of water allocated for emergency uses is typically determined based on the
historical record of emergencies experienced and on the water needed during the amount of
time expected to lapse before an expected emergency can be corrected. Possible emergency
situations include events such as water contamination, loss of electrical power, several
simultaneous fires, and other unplanned events. Because the occurrence and magnitude of an
emergency situation is not subject to accurate evaluation, the volume of emergency storage is
generally based upon engineering judgment or utility policy. rule thumb is to provide
emergency storage equal to one-quarter the maximum day demand.
When the diumal curve is known required operational storage can
the diumal curve system demands. The difference between hourly demands
the average demand (expressed as a volume) is the operational storage to meet
peaking requirements. This method is used when a system has a water treatment plant and it
is important to maintain a uniform production rate throughout the day. The City of Owasso
does not own a water treatment plant facility. Rather it purchases water from the Tulsa
Metropolitan Water Authority. As Owasso purchases the water from another authority on a
volumetric basis the volume required to meet the operational needs should be computed
differently. The difference between the peak hour demands (the diumal curve) and the
maximum flow that can the Tulsa a day
IS
cannot
two a
gallons. The Tank has a total capacity 500,000 gallons the 1 has
a total storage capacity of 2,000,000 gallons. Table 2 shows the operational characteristics
the two tanks. Both tanks are ground storage tanks and are located within the same pressure
plane. The two tanks have significantly different elevations, which dramatically reduces the
usable storage. The Ator Tank has an altitude valve and the operating range is approximately
10 feet (746 feet when full and allows a minimum level of 736 feet). The 169 Tank does not
have an altitude valve; therefore, allowing it to drain to levels as low as 30 feet during peak
demand times mainly as a result of insufficient transfer capacity at the system inlet and the
MONTGOMERY WATSON
4-2
Section 4
tank. However, during an average demand day the 169 tank will fill to 745.5 feet (94-foot
height in the tank) and drop to a level of 89 feet. When the tank level decreases to 804.5 feet
(89-foot height in the tank), the control valves at the Tulsa connections are signaled to open
and thus fill the 169 Tank. Under average operating conditions the level of the 169 Tank
never decreases to the point that the Ator Tank is used. Therefore, the water stored in the
Ator Tank remains below grade for a majority of the year.
A review of historical reservoir water level data has highlighted that during peak demand
times the 169 Tank levels decrease to levels as low as 30 feet. When the water level in the
169 Tank decreases approximately 30 feet the Ator Tank will begin to release water into the
system that has been in the tank all winter. The quality of the water in the Ator Tank will
possibly have degraded substantially with the disinfectant residual decreased to insignificant
levels. The introduction of the aged water from the Ator Tank to the distribution system
could possibly have negative water quality impacts on customers. However, the Ator Tank
will only experience periodic changes in level during peak demand times for short periods of
time and dilution of the Ator Tank water with 169 Tank water may mask the water quality
impact.
The 169 Tank is full at a level of 809.5 feet and historically has not dropped to below 745.5
feet. However, the usable storage in the 169 Tank is computed for a total of 50 feet, which
results in an operating range of 1,000,000 gallons. The water stored in the Ator tank cannot
be considered as storage for operational purposes because it does not contribute to the water
distribution system except a few during the on a peak demand. Therefore,
the current usable operational and emergency storage in the Owasso water distribution
system is 1,000,000 gallons. The storage required to meet the operational and emergency
cannot be determined at this since the flow Tulsa can
at this amount
1
Operational Parameters
Ground Elevation (feet)
Minimum Operating for Peak
Demand Conditions
Minimum for
Demand
Maximum
Total Volume (gallons)
Usable Volume for Peak Demand
(gallons)
Usable Volume for Average Demand
Conditions (gallons)
- .
Ator Tank
691
45/736
169 Tank
715.5
30/745.5
45(736
89/804.5
55/746
94/809.5
o
o
'100,000
4-3
Section 4
3.2 Pump Stations
Owasso has a pump station that maintains supply to the northeastern part of the distribution
system. There is a hydropneumatic tank at the pump station that has an approximate volume
of 40 gallons. The purpose of a hydropneumatic tank is to supply water to meet the
prevailing demand with the pump operating periodically to refill the hydropneumatic tank.
The hydropneumatic tank and pump in Owasso is undersized to the point that the
hydropneumatic tank never fills and the pump is operating 24 hours a day.
The pump station has an auxiliary pump equal to the size of the largest pump to operate if the
main pump experiences mechanical problems.
3.3 System Pressures
System pressure criteria are typically determined by several criteria, including customer
feedback and the City's goals for the system in general. System pressures are evaluated under
two scenarios: maximum day, and peak hour. The Oklahoma Department of Environmental
Quality (DEQ) regulations require that a 25 psi residual system pressure be maintained at all
service connections. The DEQ does not specify what conditions the 25-psi residual must be
maintained. It is recommended however that 35-psi be adopted as the minimum acceptable
pressure during peak hour demands, since 25 psi is a low pressure. Owasso has experienced
complaints from customers that may be above the DEQ regulations but during peak demand
times their pressures are reduced to less than psL These customers have become
accustomed to pressures of around 60 psi during an average demand day. The A WW A
recommends that pressures no less the peak on the peak
customers
1 the areas Owasso
experience pressures less than 25 psi during the peak hour on the day that reflects maximum
day demands. The junctions shown reflect do not meet the 25-psi criteria. Generally all
areas located north of 96th Street experience pressures less than psi during the peak
demand neighborhood that is northeast 86th 129th experiences the
lowest which water, The
4.4
Section 4
Figure 1: Areas in Owasso Experiencing Pressures Less Than
on a Maximum at an Inlet Pressure of 115 psi.
psi During the Peak Hour
MONTGOMERY WATSON
4-5
Section 4
EXISTING
Figure Areas in Owasso Experiencing Pressures Less Than 35 psi During the Peak Hour
on a Maximum Day at and Inlet Pressure of 115 psi.
4.6
Section 4
3,4 Tulsa Water Supply
Data was collected during calibration to determine the delivery pressure from Tulsa to
detelmine if the pressures at the delivery point varied, and to determine the operation of the
pressure reducing valves (PRVs) downstream of the meters. It is critical to the development
of a long-term capital improvement strategy to understand the pressure regime of the
TulsaJOwasso system boundary. During calibration, the pressures upstream of the 16-inch
meter ranged from 140 psi to 150 psi and the pressures downstream of the PRY were 120 psi.
On the day of calibration, the pressures upstream and downstream of the 12-inch meter (and
PRY) were 130 psi indicating that the PRY reduces the pressure to 130 psi.
The Tulsa take-points were modeled as constant-level reservoirs delivering water at a
constant pressure equal to that recorded on the day of calibration. When the model was run
for the maximum day demands with the Tulsa take-points set at 130 psi (12-inch meter) and
140 psi (16-inch meter) the 169 Tank level would decrease to 48 feet during the day. During
the night the tank level would fill to approximately 90 feet. Figure 3 shows the modeled tank
operating levels if the pressures from Tulsa are 140 psi at the 16-inch meter and 130 psi at
the 12-inch meter. The 169 Tank does not re-fill during the low demand times (night). The
yellow band of color on Figure 3 represents the upper and lower operating levels of the 169
Tank on an average demand day (valve close and valve open set points respectively for the
control valves).
Data was collected City Staff on actual tank levels peak demand times in
1999. When the tank operations from the model were compared to tank actual tank
operations from last August it became apparent that the model was not reflecting actual tank
operations during a peak demand 7 actual tank at
1
MONTGOMERY WATSON
4-7
Section 4
EXISTING SYSTEM ANALYSIS
95
Normal Tanl< Operating Range
90
85
80
75
70
65
'lii 60-
~ 55
gi 50
~ 45
~ 40
~ 35-------
30-
25
20 - -----
15-----
10 ----------
5
o
(f)
-'=
o
o
o
Figure 3: Modeled Tank Operating Levels with
and 130 psi at the 12..jnch meter
95
90
85
80
75
70
65
60
1il 55
:!
@ 50
,.
" 45
..J
-"
" 40
~
35-
30
25
20-
15 ---..
10
5 -
0
v 0
N 0
,q ro
'" '"
g> g>
<.0 co
03 03
Figure
140 psi at the
Normal Tanl< Operating Ranga
co N '" v 5 co N '" ." 0 co N co -" 0 co V co (\; '" v 8 <.0 N '" ~. 0 co N co ..- 8 <D N '" " 0 co N '" " 8 <D N '" ..- 8
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N <~~ ro i>i ~ ~ i>i i>i iO 05 ,,) iO 0 0 <7) I~ "i N .- "i ro i>i Ui &S i>i N <0 0; OJ ~ 0 0 OJ re: 0 "i ro N ,- " ro i>i Ui 0; i>i i>i iO
'" '" '" N '" '" '" N '" '" 0> '" '" '" N '" '" '" N '" '" '" '" '" '" ~ N '" '"
'" g> g> ~ '" '" '" '" '" g> ffi '" '" '" '" '" m m m m m m '" '" m m m m g> ~ ~ m m m ~ '" m m m m m ~ ~ m m m m ~ m '"
~ g> g> g> g> ~ g> g> ~ ~ ~ ~ g> g> g> ~ <3 <3 <3 g> m ~ ~ ~ ~ g> ~ i;] m ~ ~ ~ OJ ~ m ~ '"' ~
~ ~ '" 2; i;] OJ
~ ~ ~ ~ 03 03 ~ ~ 0> g> Q> ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ ~
03 03 '" '" w ~ ~ 03 ~ ~ ~ ~ 03 ~ ~ 55 55 ~ 55 ~ ~ 03 03
Dale 1& Time
Actual I
Tank Operating Levels for Week of August
1999
4-8
Section 4
95
90
85
80
75
70
65
60
! 55
0; 50
>
.,
..!
'"
ffi 40
...
Normal Tank Operating Range
35
30
25
20
15
10
o
(QC'\lC()v
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0003
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Dale 8. Tlma
Figure
Actual
Tank Operating Levels for Week
August
1999
95
90
85
80
Nonnal Tank Operating Range
75 ~,-
70
65
60
A 55
@ 50
~ 45
'"
~ 40-
35
---..--._~--._---.~._-.-------..,_._---~-----_.._---_.~-_.-----.
-.._----._._-_.._..~--_.._--~._"--~._--------_._._._--------------,'.._---
30 ----------.------
25 . --~.----
20
15 -----~---
10 - -
0-
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~~~OtiCON{J)
~~~~~~~?3
ro ~ ~ ~ ~ ~ ~ ~
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coro~~~
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Date Ii< Time
~ ! ~
ill ill ill
~ ~ $
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$ $ ~
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Actual
Tank
Week
21, 1
4-9
Section 4
95
90
85
80
75
70
65
60
1;; 55
g.
~ 50
j 45
""
~ 40
35
30 ~~~~ ~----~. ._-~--~-
25
20
15
Normal Tank Operating Range
10 ~~_._---~---~_....._-~_.._~___.__.__.~~._..______.__~...__._~___~_..__~_____~______~___~
5
o
~
--"-".~---"--"- ~ ----.-~----- _..~------'~--- '-""-----
... 0 '" '" ro ... '" OJ ... 0 '" '" ro '" OJ
'" 0 <? ... '" ... '" 0 <:< ... ...
ro N .0 0; N N i-: 0 :! OJ N ~ :,; 0; N
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ro '" '" 0) ~ 05 '12 0) 0 '12 '" 23 0) S '12 '12 S
~ ro ro ro ro ~ '" 05 f:1 0 0 0 (;; ~ (;; ~
~ '" ~ '" OJ ~ ~ ro <? i1l <? i1l ro f:1 f:1
OJ ro ro ro OJ OJ ro ro OJ ro OJ
Date & Time
OJ
...
:,;
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7: Actual
Tank Operating Levels for Week August 28-31,
3 indicates if the Tulsa constant at 140 pSI
the 169 Tank should fill during the night. As can be seen this is what happens
the it appears that
Table 3 shows the
As
operational capacity to
pressures at
the
the 1
meter to
4-10
Section 4
Table 3: Capacity Required to Transfer Water from 16=inch Tulsa Take Point to
the 169 Tank
16=inch Inlet 169 Tank Calculations of Available Headloss
Inlet Inlet HGl* Tank HGl** Available Distance From Headloss Available
Pressure Pressure (feet) Height* (feet) Headloss Inlet to the 169 Through
(psi) (feet) (feet) (feet) Tank (feet) Transmission
System (Wi 000
feet)
150 346 937 94 811 126 20,000 6.35
140 323 913 94 811 102 20,000 5.20
130 300 890 94 811 79 20,000 4.04
'120 277 867 94 811 56 20,000 2.89
110 254 844 94 811 33 20,000 1.73
100 231 821 94 811 10 20,000 0.57
*Based on a ground level of 590 feet at the inlet
**Based on a ground level of 715.5 feet at the 169 Tank
In order to ensure that there is enough hydraulic capacity to transfer the water from the inlet
to the 169 Tank an approximate minimal inlet pressure of 110 psi is required.
RECOMMENDATIONS
SUMMER
There are several tasks that can be implemented
problems this summer and summers.
to reduce
@ first
seek their
demand periods.
IS
maintaining high
can meet
at
@ Confirm with Tulsa that in the past the pressures at the take-points have fluctuated
140 psi to approximately 105 psi during their peak demand times.
@
can
to
@
two meters is
to
manner.
impacts on the ability to transfer water to the
In order to better understand the actual operating parameters in the Ow as so distribution
system during peak demand times and to determine the priority of capital improvements,
more data should be collected during the month of August this summer. The following data
should be collected:
4-11
@ Monitor the upstream pressures of both take points, and
@ Record meter readings on a daily basis at the same time each day.
Existing pressure losses at valves should be minimized as follows:
@ Locate the PRY on the 16-inch transmission main and identify and change the pressure
settings,
@ Locate and remove unnecessary pressure reducing valves, and
@ Check all isolation valves to ensure that all valves are in the open position.
Demand should also be managed in the peak demand times using a combination of the
following methods:
@ Conduct a public information program to educate the citizens of Owasso of the need to
voluntarily conserve water,
@ Contact high-use customers individually to discuss voluntary water conservation
measures, and
@
high
ensure no users loose water
to
completely.
water
4-12
MEMORANDUM
TO:
Mayor Williams and City Councilors
City of Owasso
FROM:
Larry Mitchell, City Manager
Sherry Bishop, Finance Director
SUBJECT:
Proposed Water Rate Adjustment
DATE:
August 4, 2000
During the FY 2000-2001 budget review, we alillounced to the City Council that the City
of Tulsa had sent the City a rate increase notice. The rate increase of 14 cents per 1000 gallons
would become effective on the first of September and represents the first rate adjustment since
1. We noted that the of had not raised its water rates 1992.
with a
tentatively identified in
water
distribution model,
$2,000,000 (attachment 1).
on water revenues, staff
Water Master Plan.
Plan a number
with the
Watson
engmeer,
to
water
to cost nearly
It is our position and recommendation that the City Council seriously consider adjusting
both the minimum water charge ($7.30) as well as the overall water consmnption rate ($2.92).
the circumstances and events, we that the City should match the
rate cents. rate
1 rate cents to
new water revenue.
costs
April 11, 2000
Robert Carr
Public Works Director
City of Owasso
207 S. Cedar
Owasso, Oklahoma 74055
RE: Preliminary Budget Costs for Improvements to the Existing Water Distribution System
Dear Mr. Carr:
Weare sending this letter to infOlm you about anticipated capital improvements to the City
of Owasso water distribution system. After preliminary review of the model we have
identified some improvements that should implemented to help alleviate current
distribution system problems.
Currently, there are two elevated storage tanks serving the system. The Ator tank is
at a line (this is
tank is
same plane, which some
difference in The drastic difference does not allow the
cycle low demand periods. The Ator tank will and stay full. Because the
at a higher HGL, it will fin and empty to meet demands but the normally does not
drop the 67 feet required to allow the Ator tank to begin emptying. This situation creates
water quality problems because ofthe age ofthe water. Therefore, our preliminary
is to abandon the the detailed analysis is complete, we
to use to serve
to meet
it will
1 tank. We anticipate recommending a new transmission that directly to the
169 tank, which would allow the Owasso water distribution system to be pressurized fl.-om
both the take points at the south and from the 169 tank at the north.
April 10, 2000
Robert Carr, Public Works Director
Page 2
There is a booster pump station with a hydropneumatic tank that serves the neighborhood
immediately north and south of 96th Street This booster pump station was put in because of
low pressures in the area. Some adjustments to the pump station are necessary. The intent
of the hydropneumatic tank is to provide water when there are increased demands and the
pressures drop below a specified setting. The pumps will operate only when the tank
cannot provide enough pressure to the system. Typically, a hydropneumatic tank with a 40-
gallon capacity (the size ofthe tank at the pump station) will only service a few houses.
This booster pump station with the hydropneumatic tank is serving an entire development
of more than 50 homes. This results in the pumps at the station constantly running to
increase the HGL in this area. At this time we reccommend that this area be completely
isolated from the rest ofthe system to create an additional pressure plane and rehabilitate
the existing pump station to include ground storage.
serves the area north 106th west
Garnett Road. During high demand periods, this area experiences low pressures. The
elevation in the northem area feet, whereas the elevations
are We a a
to
We will recommendations
valves (PRVs) located immediately down stream of the Tulsa meters.
recommendations will be to either remove the PRVs or adjust the settings on the We
are currently working with your staff to obtain detailed infonnation on the current settings
once 1S
April 10, 2000
Robert Carr, Public Works Director
Page 3
Table 1: Budgetary Costs for Preliminary Recommendations for Capital
I t PI
mprovemen s an
Improvement Description Cost
-
Abandon Ator tank $5,000
20,000 feet of 12-inch PVC transmission main to feed $1,000,000 ($50/foot)
169 tank
Create second pressure plane and upgrade existing pump $200,000
station to include additional ground storage
Create third pressure plane and new pump station (150 $200,000
HP) ~,,~~
Elevated storage tank (0.5 MG) in the third pressure $500,000
plane
Total $1,905,000
cc:
Proposed Water Rate Increase
Prepared June 6, 2000
Minimum 1000 gal
Per 1000 gal
Average Residential Billing:
Water 7000 gal
Sewer (5000 gal)
Refuse
Ambulance
Total Average Residential Billing
Estimated Revenue Increase
Monthly Billings:
#
Usage (less 1000
'14)
Annual
Base ($0.20)
rate
Current
Rate
7.30
2.92
Current
Bill
24.82
11.03
8.00
2.00
Proposed
Increase
0.20
0.28
Proposed
Increase
1.88
Proposed
Rate
7.50
3.20
Proposed
Bill
26.70
11.03
8.00
2.00
. BOOK4568PAGE
CtYlc.e
C, Exemptions, A permit shall not be required for the following list-
ed signs, These exemptions, however, shall apply only to the
requirement for a permit and shall not be construed as relieving
the owner of such sign from the responsibility for its erection and
maintenance in a safe condition,
I, Real estate signs not exceeding eight (8) square feet in area
which advertise only the sale, rental or lease of the premises
upon which such signs are located, Provided, however, if the
property is commercial or industrial and has a frontage that
exceeds 100 feet, then the size of the sign maybe enlarged
eight (8) square feet for each additional one hundred (100)
feet or portion thereof, but not to exceed sixty-four (64)
square feet in area,
2, Directional and open house signs providing they do not exceed
two (2) square feet in area and are located on private pro~
perty,
3, Professional nameplates not exceeding two (2) square feet in
area,
4, Bulletin boards not over twelve (12) square feet in area for
public charitable or religious institutions when the same are
located on the premises of such institutions,
5, Signs denoting the architect, engineer, contractor, lending
institution, or other related business when placed upon work
under construction and not exceeding sixteen (16) square feet
in area,
6, Occupational signs denoting only the name and profession of
an occupant in a commercial building, public institutional
building or dwelling and not exceeding two (2) square feet in
area,
70 Memorial signs' or tablets, historical markers, names of build-
ings and date of erection when cut into any masonry surface or
when constructed of bronze or other noncombustible materials,
80 Traffic or other municipal sig118 legal notices, railroad cros'~
sing signs, danger, temporary or emergency signs.
9. Signs of community interest which are approved by the City
CounciL
10. Political signs not exceeding sixteen (16) square feet in area,
which make kno~1U the name of and information concerning a
political campaign of any nature: Provided, that such signs
shall not be placed or erected sooner than six (~) weeks before
the applicable election or campaign and shall be removed no
later than aqo (2) weeks after the general election, that no
political sign shall be in or on the public right....of~,way,
that no shall be placed or erected in or on any
private property the express of the owner or
occupant of such property..
lL~1obl1e
ordinance..
in Section
Subsection TI, of this
Do All and privileges acquired under the pro'"
article, or any amendment thereto,- are mere licenses
revocable by the Building Inspector for violation of the provisions
of this ordinance and all such permits shall contain a statement of
this limitation,
E, Inspection, As soon as a sign or work of art has been erected, the
permitee shall notify the Building Inspector, who shall inspect such
signs or works of art and approve the same if it is incompliance
with the provisions of this article. The Building Inspector may,
from time to time as he deems necessary, inspect all signs or other
if
BOOK 4568 PAGE 1985
c. Wind Pressure Requirements. All signs and other advertising struc-
tures or works of art shall be designed and constructed to conform
to the city building codes.
D. Obstruction to Doors, Windows, or Fire Escapes. No sign shall be
erected, relocated or maintained so as to prevent free ingress to
or egress from any door, window or fire escape. No sign of any
kind shall be attached to a standpipe or fire escape.
E. Signs or Works of Art Not to Constitute Traffic Hazard. No sign or
other advertising structure or work of art as regulated by this
article shall be erected at the intersection of any streets in such
a manner as to obstruct free and clear vision; or at any location
where, by reason of the intensity, position, shape or color, it may
interfere with, obstruct the view, or be confused with any authoriz-
ed traffic sign, signal or device; or which makes use of the works
"Stop", "Look", "Drive-In", "Danger", or any word, phrase, symbol
or character in such manner as to interfere with, mislead or confuse
traffic.
F, Gooseneck ReflectorS. Gooseneck reflectors and lights shall be per-
mitted only on ground signs, roof signs, wall signs, and works of
art. Provided,the reflectors shall be equipped with proper glass
lenses concentrating the illumination upon the area of the sign or
work of art so as to prevent glare upon the street or adjacent pro-
perty,
G. Spotlight and 'Floodlight Prohibited. It shall be unlawful for any
person to maintain any sign or work, of art which extends over public
property which i.s wholly or part.ially illuminated by floodlights or
spotlights.
TI. Mobile signs may be located in zoning districts where permitted
under the following conditions:
1. That mobile signs be located only on 'privately owned property
advertising products or services on the property where the
sign is located.
2. That the height on mobile signs (including trailer) be six
(6) feet and that the maximum sign fac.e be four (II) feet in
height and eight (8) feet in width.
3. That the mobile sign designation does"not apply .to, husiness
identification signs on company vehicles used ill daily opera."
tion of the business. Vehicles with signs cannot be parked
and used as advertisements.
T. No moving signs shall be
pennants used in connection
House" and maintained for less than forty'"
No flashing si.gns shall be in any
those signs flashing or i.ntenRittent
of changing degrees of intensity of color ex-
time, temperature, barometric pressure,
index or 1TII, but only when the does not COfr"
safety or traffic hazard in the of
Inspector.
J. All canopies, ropes, networks, bafr"
ners, ' posts, radio aerials, placed in or
projecting over or across any street, avenue, alley or sidewalk,
shall be deemed nuisances unless c.onstructed and maintained under
the conditions of thi.s article, Provided, that permission may be
granted by the majority vote of all members present at a regular
meeting of the city council to maintain a banner or holiday deco..
ration across a street for a limited period of time upon the
following terms and conditions:
6