Ordinance - 2003 - 442 - Pressure Irrigation Standards - 05/13/2003ORIGINAL
ORDINANCE #442
ORDINANCE OF THE CITY OF EAGLE, ADA COUNTY IDAHO AMENDING EAGLE CITY CODE
TITLE 9 "LAND SUBDIVISIONS", CHAPTER 4 "REQUIRED IMPROVEMENTS", SECTION 1
"IMPROVEMENTS REQUIRED", SUBSECTION 9 "WATER SUPPLY AND SEWER SYSTEMS",
SUBSECTION C "PRESSURIZED IRRIGATION FACILITIES"; PROVIDING SUPPLEMENTAL
PRESSURE IRRIGATION STANDARDS; PROVIDING A SEVERABILITY CLAUSE; AND
PROVIDING AN EFFECTIVE DATE.
WHEREAS, the City of Eagle, Idaho is a municipal corporation organized and operating under the
laws of the State of Idaho; and
WHEREAS, pursuant to Chapter 65, Title 67, Idaho Code, the City of Eagle has the authority to adopt,
establish and amend a Zoning Ordinance; and
WHEREAS, the Mayor and Council have determined that good cause exists for amending Title 9
Land Subdivisions in order to maintain uninterrupted service on existing irrigation distribution facilities
and to provide design standards that will ensure new pressurized irrigation facilities will adequately serve
the needs of water users within the community.
NOW, THEREFORE, BE IT ORDAINED BY THE MAYOR AND COUNCIL OF THE CITY
OF EAGLE, IDAHO, as follows:
Section 1: That Title 9 "Land Subdivisions", Chapter 4 "Required Improvements", Section 1
"Improvements Required", Subsection 9 "Water Supply and Sewer Systems", Subsection C Pressurized
Irrigation Facilities", of the Eagle City Code, be and is hereby amended, in part, to read as follows with
underline text to be added and strike -through text to be deleted:
9-4-1-9 (C) Pressurized Irrigation Facilities:
1. For any new subdivision and/or PUD, to be provided with a public water system and containing more
than four (4) lots, all residential dwelling units within such subdivision shall be provided with a
pressurized irrigation system to be served with irrigation water unless a waiver, as outlined herein, is
approved by the city council.
The City has adopted supplemental standards and reeulations (titled "Pressure Irrieation Standards".
incorporated herein by reference and available at Eaele City Hall) pertaining to the design. construction
and maintenance of pressurized irrigation systems. Plans and documents reflectine the reauired
standards and regulations shall be submitted with the application for a preliminary plat.
The following design requirements and the reauirements provided within the supplemental Pressure
Irrigation Standards shall apply to the pressurized irrigation system. These standards shall supplement
all other regulations, and where at variance with other laws. regulations. ordinances or resolutions. the
more restrictive reauirements shall apply. The Council may determine that revisions to the
supplemental standards are warranted and make such revisions by act of a resolution. (Ord. 321.1 11
1998)
a. The pressurized irrigation system may have a backup connection to a potable water system with
the approval of the city, city engineer, and the potable water purveyor, and the installation of a
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state approved reduced pressure backflow prevention assembly or an air gap separating the
irrigation system and the potable water system. The operation, maintenance, associated costs, and
annual inspection of the backup connection and the backup system's reduced pressure backflow
prevention assembly shall be the responsibility of the entities as determined in subsection C2 of
this section. Individual backup connections to individual lots by individual lot owners shall be
prohibited with the exception of the common area lots owned and maintained by the homeowners'
association. (Ord. 350, 6-22-1999)
b. The pressurized irrigation system shall be designed by a licensed o registered professional
engineer reeistered in the State of Idaho. and the construction plans for the system shall be
reviewed and approved by the city engineer.
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a 2. The requirement for installation of a pressurized irrigation system may be waived by the city council
when the applicant has established that any of the following situations exist (the sale or transfer of an
existing water right shall not be grounds for requesting a waiver pursuant to this provision):
a. Where a sufficient surface irrigation water right does not exist for the property. The lack of
surface irrigation water right shall be documented in writing by the appropriate irrigation district or
canal company and the department of water resources and shall be submitted with the subdivision
preliminary plat. In this case a waiver shall only be granted for that portion of the subdivision that
cannot be served.
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b. Where an existing surface water right cannot be delivered to the property by an irrigation district
or canal company due to current delivery capacity or scheduling. In these situations the city
council may still require the installation of the pressure irrigation system, provided water rights can
be made available to the property and delivery system modifications can be made so irrigation
water can be supplied within two (2) years.
c. Where the applicant has provided for another means of delivery such as flood irrigation, if
approved by the city engineer. The applicant shall present the proposed altemative delivery system
to the city engineer at the time the waiver is requested.
d. That due to the specific circumstances surrounding a new subdivision, the cost of obtaining
water rights, reestablishing water rights or developing the system would impose an undue
economic hardship on the developer. For purposes of this section an undue economic hardship
shall consist of a showing that the cost per lot to develop the pressurized irrigation system would
be twenty five percent (25%) higher than the cost per lot for providing a pressurized irrigation
system to subdivisions of similar size and density constructed in the city within the previous two
(2) years; or the cost per lot of the pressurized irrigation system would exceed five percent (5%) of
the expected per lot market value of the subdivision.
The developer shall bear the burden of providing documentation, acceptable to the city engineer
and city council, demonstrating and supporting the estimated costs of construction of the
pressurized irrigation system, and the cost per lot for irrigation systems in those subdivisions built
in the last two (2) years as noted above, and the expected market value of the subdivision lots. For
phased developments, costs will be analyzed over all phases of the development rather than the
first phase only.
43. Should installation of a pressurized irrigation system be waived by the city engineer, as outlined
herein, compliance to Idaho Code 31-3805 is still required.
5- 4. Requests for waivers shall be submitted to the city with the preliminary plat application and shall be
accompanied by an irrigation report, prepared by a licensed Idaho registered professional engineer, stating
the location and availability of surface irrigation water and documenting the basis for the waiver request. If
applicable, the irrigation report shall be accompanied by a letter from the irrigation district or canal
company stating that water rights and/or a delivery system are not available to the property. (Ord. 321, 4-
14-1998)
Section 2: The provisions of this ordinance are hereby declared to be severable and if any provision of this
act or the application of such provision to any person or circumstance is declared invalid for any reason,
such declaration shall not affect the validity of remaining portions of this ordinance.
Section 3: This ordinance shall take effect and be in force from and after its passage, approval, and
publication as required by law. In lieu of publication of the entire ordinance, a summary thereof in
compliance with Section 50-901A, Idaho Code, may be published.
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Approved and adopted this 13th day of May , 2003.
.14 77 (_
Sharon K. oore, Eagle City Clerk
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City of Eagle, Idaho
Pressure Irrigation Standards
USER INSTRUCTIONS AND GENERAL INFORMATION
These standards supplement the Idaho Standards for Public Works Construction (ISPWC)
to guide the design and construction of pressure irrigation systems in subdivisions. The
standards were created to define implementation of city ordinances, 9-4-1-9 of Water
Supply and Sewer Systems, approved by the City of Eagle and of the pertinent
requirements of IC 31-3805.
This document is not meant to replace use of the ISPWC, it is supplemental and does not
include all specifications for use on public works projects due to many specialized
applications. However, in the event of direct conflict between ISPWC and this
document, this document shall govern.
IRRIGATION SYSTEMS
I. Existing Ground and Surface Water Use
Designer shall supply information and discuss each of the following:
A. Available groundwater rights or surface rights (or shares) including the history of
irrigation practice for the site including all parcels or phases.
B. Availability and timing of surface water for distribution. Note if a specific amount of
water is available certain days of the week or similar restrictions.
C. Seasonal fluctuations including history of reduced availability
D. Acres historically served versus development irrigable acres.
E. Amenities served and anticipated consumptive water use.
F. Requirements for supplemental irrigation needs before and after water is distributed
by an irrigation company or district.
G. Downstream obligations.
II. Ownership of the Irrigation System
Developer shall provide for the following:
A. The entire pressure distribution system including but not limited to gravity supply or
well, pump station, controls and distribution piping will be owned and maintained by
a homeowners association. System management calculations and guidelines shall be
developed and included with plans, specifications and CC&Rs.
B. Developer's contractor shall coordinate on and offsite irrigation construction with the
irrigation company or district of record, owner's engineer, and adjacent property
owners associated with the existing irrigation system.
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C. Developer shall demonstrate compliance with Title 31, Chapter 38, Idaho Code.
D. The city's engineer may make periodic visit(s) during construction and shall be
present during testing of the system. As -built drawings and specifications shall be
submitted to the City as a condition of final acceptance of the subdivision or
development.
E. DEVELOPER SHALL RETAIN FULL RESPONSIBILITY FOR THE
MAINTENANCE AND OPERATION OF THE SYSTEM UNTIL THE
HOMEOWNERS OBTAIN MAJORITY SHARE OF VOTING RIGHTS IN THEIR
ASSOCIATION.
F. It is not the intent of these provisions that larger systems service more than one
development should be prohibited. Such systems are to be encouraged, but are
subject to review by all concerned officers and advisers of the City on a case-by-case
basis. Assurance of the presence of a competent permanent operating entity is the
crucial concern in such cases.
III. Defined Water Source determined by availability
Irrigation water shall be supplied in sufficient amounts to meet the requirements
of each development. Developments are encouraged to incorporate a variety of
water saving measures to reduce irrigation over use. Designers may utilize a
variety of schedules and products to ensure that irrigation use coincides with
water availability. Common irrigation practices (such as, lawn sprinklers on
timers to allow for nighttime application) shall be assumed unless otherwise
identified. The designer shall identify all design and control assumptions. Any
assumption leading to a design flow rate lower than the probable peak demand as
defined by the algorithm following shall be explicitly stated as an instruction in
the Operation and Maintenance Manual.
IV. Design Standards
The following standards shall be used to govern the design of a pressurized
irrigation system for development and subdivisions.
A. Minimum Flow Rate Requirement
Adequacy of pressurized irrigation systems will be based on the Required Capacity Flow
Rate calculation (QMax) for the development. The Required Capacity Calculation will
be compared to the allotted irrigation water for the development in question. The
following analysis method shall be used to determine the Required Capacity:
qind = Flow at individual lot.
QMax = Required Capacity Flow Rate.
KCo = Coincidence Coefficient
QAve = Mean irrigation flow based on a lawn requirement of 0.4 in/day
CAvail = Coefficient of Availability
= Ratio of hours in full week to number of hours per week irrigation water is
available.
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n = Number of lots
p = Probability of all lots irrigating at the same time.
Formulas:
P=
QAve
n . CAvail . qind
KCo 3.04n•p•(1 — p)
QAve
QMax = + KCo . qind
CAvail
Note: If the proposed irrigation system is controlled manually rather than by automatic
timers, a multiplying factor of two shall be applied to QMax.
Allotted irrigation flow verification documents shall include all stipulations of use
imposed by the entity supplying water to the development and any other information
affecting the conditions of delivery of irrigation water. If it is determined that there is
insufficient flow, measures shall be taken, and will be subject to review by the City or
City Engineer, to ensure delivery of adequate supply of irrigation water to the
development.
B. Diversion Structure
The irrigation district providing water to the site may have specific standards that
govern the diversion structure. These standards shall apply if other comparable
standards do not exist. Conflicts shall be presented to the city for resolution.
1. Install a Waterman ® C-9 Slide Gate, with 10' seating head, 0 feet unseating head,
threaded stem and lift with handwheel standard, extended frames or stem extensions
optional, onto a concrete headwall attached to corrugated metal, plastic or HDPE pipe
or equivalent.
2. System design shall include primary flow and secondary overflow; pipes shall be
sized to accommodate the maximum possible flow.
3. Install a Cipoletti weir downstream of the diversion valve to accommodate the
maximum possible flow. A pre -filter screen or other filter shall be constructed in line
prior to pump station. Pre -filter must have irrigation district approval or be located
outside their jurisdictional area.
C. Storage Ponds
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Storage ponds may be used to retain irrigation water for flow equalization or for
recapture and reuse, or as a water amenity.
1. All ponds shall conform to the following standards:
a. Safety shelf at maximum 3 feet water depth with a 3:1 stabilized slope.
b. Total depth, 6 -feet minimum.
c. Supplemental aeration may be required for ponds less than 12 -feet deep.
d. If utilized for storm water retention, pond should include an emergency
spillway to handle a 50 -year frequency storm or be sized to retain 100 -year
event.
e. A minimum 30 -foot perimeter easement from the top of bank shall be required
for maintenance.
2. Landscape vegetation in accordance with design review approval should be
established on all embankment slopes, borrow areas, or any other areas disturbed
during construction.
3. Provide location of the pond area, cross sections, and if used for storm water
retention, emergency outlet; required capacity and available capacity specifying
personnel, budget, and sediment disposal procedures (this may be incorporated into
the NPDES 11 storm water pollution prevention plan, if one is required).
4. Maintenance operation should be specified in the Operations and Maintenance
Manual. Clean out of sediment basin shall occur when its effective storage capacity
is reduced by 15 percent. The elevation corresponding to this level should be
determined and specified in the design data as a measurable distance below the top of
the riser. Disturbed areas should be revegetated immediately upon completing of the
basin cleaning.
5. Tanks may be used in lieu of ponds for flow equalization. Design parameters for
tanks will be reviewed on a case-by-case basis with particular emphasis on long-term
maintenance capability.
D. Filtration
Each pressurized system using surface water shall be filtered. Filtration shall
incorporate at a minimum a thirty mesh or smaller screen.
1. An appropriate filtration system shall be installed prior to entering the pump station
such as a Clemons Clearwater Self Cleaning Suction Screen Model CW 200 or
equivalent
2. The filter shall ensure no significant (or minimize) headloss
3. Filters must be self-cleaning suction or shall include a headgate for screen box
cleanout.
4. Replacement part numbers and suppliers for controls, pressure transducers, and
screen elements shall be provided.
E. Wet Well
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The purpose of the wet well is to allow the pump to draw water without cavitating by
insuring sufficient submersion of the pump or intake. Wet well construction shall
meet the following:
1. A minimum 72" diameter pre -cast concrete wet well. A larger wet well may be
required based on design. Construction area shall be mechanically compacted to 95%
of standard proctor.
2. Pre -cast concrete base may be used. If an open bottom base is used it shall be set on a
precast base ring and use a minimum of 6 inches of 2 inch washed rock to prevent
sediment uptake. An open bottom base shall not be used if groundwater is above the
base.
2. All strap or clamp attachments within the wet well shall be stainless steel.
3. Maintain a minimum of 2 feet separation from submersible pump from concrete base.
4. Wet well shall have a lockable expanded or solid metal protective cover.
5. The easement accessing the wet well shall be a minimum of 12 feet and provide for
vehicle access at all times.
F. Pump system
A pump system design shall include an alarm system to alert the operator of
inadequate water supply, electrical malfunction, and other common problems.
1. Actual number of pumps and configuration to be determined by the designer subject
to review by the City Engineer, but the system must have a minimum of two pumps.
System must be capable of meeting maximum demand with any pump out of service.
System must be capable of functioning at a minimum flow not greater than the
demand to irrigate a single lot. Variable frequency drive systems or other means may
be used to attain variable delivery rate.
Exception: Single -pump system may be used if development is smaller than 10 (ten)
acres. System operator in such case shall maintain spare pump on shelf ready to
install.
2. Pumps, controls, piping, filter, and related items shall be installed in strict accordance
with manufactures specifications and instructions. All construction shall be
completed in conformance with ISPWC and any other plumbing or electrical codes
that may be applicable. System shall be pressure tested to 1.5 times operating
pressure. Pump controls shall include auto restart.
3. Power and control systems shall be located within the irrigation easement provided by
the developer and shall conform to current applicable codes.
4. Perform pump rotation, NPSH and total head tests per pump manufacturer
recommendation prior to placing the system in operation.
5. Pump contractor to provide shop drawings of pump configuration and plumbing to be
used in record drawings.
6. Contractor to provide a screen or a full enclosure around pump station hardware and
controls. Any full enclosure shall include an attic -type fan and thermostat. All
screens and enclosures shall be submitted to the Design Review Committee for
recommendation.
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G. Control system
1. The pump control panel shall be constructed to NEMA 3R or better standards and
shall include, but not limited to, the following features: Lightening surge arrestor;
low/high voltage protection; low level pump shut-off with manual re -set; soft start
systems for start up and shut down; phase failure and phase reversal protection; HOA
switch; pumps shall be controlled by pressure switches; and motor rated circuit
breakers with overload protection. The completed electrical system shall be a
complete and operation component of the pumping system. The electrical system
shall also include a 110 V, 30 -amp convenience outlet and necessary transformer.
2. The electrical control panel shall include a digital sprinkler irrigation clock to control
the solenoid -operated valve for timed cleaning of the Clemons or similar filter screen.
H. Distribution System
1. All lots shall be provided with irrigation water with a minimum pressure of 50 psi
under design operation conditions and minimum one (1) bib per lot, minimum 1 -inch
diameter service. Design flows may necessitate larger diameter service or pressure.
2. All pipe shall be minimum class 120 psi or approved equal and services shall be
minimum 1 IA" DR 9.0 Polyethylene or equivalent pipe. Pipe shall be placed a
minimum of 30 inches deep and be sloped to drain to the locations shown on the
plans. Trenches shall be water settled or compacted.
3. Direct tapping of main is not allowed; tees or saddles required.
4. Thrust blocks of joint restraints, per water note #5 shall be installed where unequal
forces exist. Thrust blocks shall be installed per section SD -403 of the ISPWC.
5. Identification tape: All irrigation mainlines shall be marked with warning tape as per
ISPWC. The tape shall be buried 6 inches below the surface to 18 inches above the
top of the pipe.
6. Gravity flow irrigation pipe shall be PVC SDR -41 or approved equivalent. All
connections shall be watertight.
7. Cover all irrigation and drain boxes with expanded galvanized steel or aluminum
grating or approved equivalent. All covers shall be securely fastened to the tops of
concrete walls.
8. All irrigation risers and faucets shall be identified with durable tags carrying the
warning "Danger -Unsafe Water" or "Non -Potable Water" or equivalent. If valve box
lids intended for use in potable water systems are used, the word "water" shall be
obliterated prior to installation.
9. No irrigation system shall be cross connected in any manner to any public water
system unless the provisions for cross connection protection as referenced in ECC 9-
4-1-9c.la are incorporated in the design.
10. Ten feet of horizontal separation shall be maintained between water mains and non -
potable water lines. At any location where pressure irrigation main and water main
cross, the water pipe shall be centered so that both joints are located as far as possible
from the crossing. A vertical separation distance of 18" shall be maintained wherever
possible.
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11. If drain plugs and drain boxes are employed to winterize the system, the location of
valves and drain sumps shall be identified on the plan set and on the site by a sign
identifying the drain.
I. Operation and Maintenance Manual
1. Owner shall deliver five copies of As -Built drawings and specifications along with
five copies of an Operation and Maintenance assembled by the Engineer of Record to
the Homeowners Association at such time as system is turned over to the Association.
2. The Operation and Maintenance Manual shall include the following:
a. Copies of pertinent sections of the CC&R's
b. Water right documentation
c. Maintenance requirements including agreements regarding source ditch
d. Copies of all manufacturer's recommended maintenance schedules for all
pump system components
e. Manufacturer's specifications sheets, serial numbers, and date of manufacture
of all components
f. Parts lists for all components
g. Electrical Schematics
h. Site specific start up and shut down procedures, along with winterizing
procedures
i. Designer's and Installer's names and phone numbers
j. A section on Trouble Shooting
k. Pond or reservoir maintenance section
1. A reduced (11x17) Plan Set for the system
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Conversion Factors - Irrigation
Miners Cubic Gallons Acre
Inches Feet per per Feet
(Idaho) Second Minute Day
1.0 0.02 9.0 0.04
2.0 0.04 18.0 0.08
3.0 0.06 26.9 0.12
4.0 0.08 35.9 0.16
5.0 0.10 44.9 0.20
10.0 0.20 89.8 0.40
15.0 0.30 134.6 0.60
20.0 0.40 179.5 0.79
25.0 0.50 224.4 0.99
30.0 0.60 269.3 1.19
35.0 0.70 314.2 1.39
40.0 0.80 359.0 1.59
45.0 0.90 403.9 1.79
50.0 1.00 448.8 1.98
To Convert Multiply By To Obtain
Miners Inch 0.0200 Cubic feet per second (CFS)
CFS 448.831 Gallons per minute (GPM)
GPM 0.002228 CFS
CFS 1.9835 Acre feet per day (AFD)
For purposes of design and review, Irrigation Shares available for the subject property
shall be quantified in terms of total volume over a period of time, flow rate, or in
another manner as defined by the irrigation company or district responsible for delivery.
\\HECO-2000\I\ENGR\EG\021302\Irrstnds.doc
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ORDINANCE #442
ORDINANCE OF THE CITY OF EAGLE, ADA COUNTY IDAHO AMENDING
EAGLE CITY CODE TITLE 9 "LAND SUBDIVISIONS", CHAPTER 4 "RE-
QUIRED IMPROVEMENTS", SECTION 1 "IMPROVEMENTS REQUIRED",
SUBSECTION 9 "WATER SUPPLY AND SEWER SYSTEMS", SUBSECTION C
"PRESSURIZED IRRIGATION FACILITIES"; PROVIDING SUPPLEMENTAL
PRESSURE IRRIGATION STANDARDS; PROVIDING A SEVERABILITY
CLAUSE; AND PROVIDING AN EFFECTIVE DATE.
WHEREAS, the City of Eagle, Idaho is a municipal corporation orga-
nized and operating under the laws of the State of Idaho; and
WHEREAS, pursuant to Chapter 65, Title 67, Idaho Code, the City of
Eagle has the authority to adopt, establish and amend a Zoning Ordinance; and
WHEREAS, the Mayor and Council have determined that good cause
exists for amending Title 9 Land Subdivisions in order to maintain uninterrupted
service on existing irrigation distribution facilities and to provide design standards
that will ensure new pressurized irrigation facilities will adequately serve the needs
of water users within the community.
NOW, THEREFORE, BE IT ORDAINED BY THE MAYOR AND COUN-
CIL OF THE CITY OF EAGLE, IDAHO, as follows:
Section 1: That Title 9 "Land Subdivisions", Chapter 4 "Required Improvements",
Section 1 `Improvements Required",. Subsection 9 "Water Supply and Sewer Sys-
tems", Subsection C Pressurized Irrigation Facilities", of the Eagle City Code, be
and is hereby amended, in part, to read as follows with underline text to be added
and strike -through text to be deleted:
9-4-1-9 (C) Pressurized Irrigation Facilities:
1. For any new subdivision and/or PUD, to be provided with a public water
system and containing more than four (4) lots, all residential dwelling units
within such subdivision shall be provided with a pressurized irrigation system to
be served with irrigation water unless a waiver, as outlined herein, is approved
by the city council.
The City has adopted supplemental standards and regulations (titled "Pressure
Irrigation Standards", incorporated herein by reference and available at Eagle
City Hall) pertaining to the design, construction and maintenance of pressur-
ized irrigation systems. Plans and documents -reflecting the required standards
and regulations shall be submitted with the application for a preliminary plat.
The following design requirements and the requirements provided within the
supplemental Pressure Irrigation Standards shall apply to the pressurized irriga-
tion system. These standards shall supplement all other regulations, and where
at variance with other laws, regulations, ordinances or resolutions, the more
restrictive requirements shall apply. The Council may determine that revi-
sions to the supplemental standards are warranted and make such revisions by
act of a resolution.
a. The pressurized irrigation system may have a backup connection to a
potable water system with the approval of the city, city engineer, and
the potable water purveyor, and the installation of a state approved
reduced pressure backflow prevention assembly or an air gap separating
the irrigation system and the potable water system. The operation,
maintenance, associated costs, and annual inspection of the backup
connection and the backup system's reduced pressure backflow preven-
tion assembly shall be the responsibility of the entities as determined in
subsection C2 of this section. Individual backup connections to indi-
vidual lots by individual lot owners shall be prohibited with the excep-
tion of the common area lots owned and maintained by the homeowners'
association. (Ord. 350, 6-22-1999)
b. The pressurized irrigation system shall be designed by a licensed Idaho
registered professional engineer registered in the State of Idaho, and the
construction plans for the system shall be reviewed and approved by the
city engineer.
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Account: City of Eagle
Address: 310 E State Street
Eagle, Idaho 83616
Attention: Sharon Moore
lc cIVED & r
CITY OF EAC
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Valley Times
PO Box 1790 Eagle, Idaho 83616
Rout,, ro•
LEGAL ADVERTISING PROOF OF PUBLICATION
following situations exist (the sale or transfer of an existing water right shall not be
grounds for requesting a waiver pursuant to this provision):
a. Where a sufficient surface irrigation water right does not exist for the
property. The lack of surface irrigation water right shall be documented
in writing by the appropriate irrigation district or canal company and the
department of water resources and shall be submitted with the subdivision
preliminary plat. In this case a waiver shall only be granted for that
portion of the subdivision that cannot be served.
b. Where an existing surface water right cannot be delivered to the prop-
erty by an irrigation district or canal company due to current delivery
capacity or scheduling. In these situations the city council may still
require the installation of the pressure irrigation system, provided water
rights can be made available to the property and delivery system modifi-
cations can be made so irrigation water can be supplied within two (2)
years.
c. Where the applicant has provided for another means of delivery such
as flood irrigation, if approved by the city engineer. The applicant shall
present the proposed alternative delivery system to the city engineer at
the time the waiver is requested.
d. That due to the specific circumstances surrounding a new subdivision,
the cost of obtaining water rights, reestablishing water rights or develop-
ing the system would impose an undue economic hardship on the devel-
oper. For purposes of this section an undue economic hardship shall
consist of a showing that the cost per lot to develop the pressurized
irrigation system would be twenty five percent (25%) higher than the
cost per lot for providing a pressurized irrigation system to subdivisions
of similar size and density constructed in the city within the previous two
(2) years; or the cost per lot of the pressurized irrigation system would
exceed five percent (5°°0) of the expected per lot market value of the
subdivision.
The developer shall bear the burden of providing documentation, accept-
able to the city engineer and city council, demonstrating and supporting
the estimated costs of construction of the pressurized irrigation system,
and the cost per lot for irrigation systems in those subdivisions built in
the last two (2) years as noted above, and the expected market value of
the subdivision lots. For phased developments, costs will be analyzed
over all phases of the development rather than the first phase only.
4-3. Should installation of a pressurized irrigation system be waived by the city
engineer, as outlined herein, compliance to Idaho Code 31-3805 is still required.
5 4. Requests for waivers shall be submitted to the city with the preliminary plat
application and shall be accompanied by an irrigation report, prepared by a licensed
Idaho registered professional engineer, stating the location and availability of sur-
face irrigation water and documenting the basis for the waiver request. If applicable,
the irrigation report shall be accompanied by a letter from the irrigation district or
canal company stating that water rights and/or a delivery system are not available
to the property. (Ord. 321, 4-14-1998)
Section 2: The provisions of this ordinance are hereby declared to be severable and
if any provision of this act or the application of such provision to any person or
circumstance is declared invalid for any reason, such declaration shall not affect the
validity of remaining portions of this ordinance.
Section 3: This ordinance shall take effect and be in force from and after its passage,
a roval, and publication as required by law. In lieu of publication of the entire
inane , a Summary thereof in compliance with Section 50-901A, Idaho Code,
may be published.
Approved and adopted this 13th day of May , 2003.
ATTEST:
Mayor Nancy C. Merrill
Sharon K. Moore, Eagle City Clerk
Identification: Ordianance No. 442
Run Dates: June 3, 2003
Number Lines 147 2 -col. Amount: $2
Other:
Geneva A. Trent, being duly sworn, deposes
and says: That she is the Principal Clerk of
Valley Times, a weekly newspaper published at
Eagle, Ada County, State of Idaho; that the said
newspaper is in general circulation in the said
County of Ada, and in the vicinity of Meridian,
Star, and Eagle, and has been uninterruptedly
published in said County during a period of
seventy-eight consecutive weeks prior to the fill
publication of this notice, a copy of which is atta
hereto, and that the notice was published in
Valley Times, in conformity with Section 60-108,
Idaho Code, as amended, for / time(s
in the regular and entire issue of said paper, anc
was printed in the newspaper proper, and not in
supplement; and that said notice was published
on the following dates:
Beginning: (q — C73
E / — n 3 — �o
/ l
STATE OF IDAHO
aca,ey-
)SS
COUNTY OF ADA
On this/ ! day of --- in the year of
before me, a Notary blic, personally appeared
Geneva A. Trent known or identified to me to be the
whose name is subscribed to the within instrument,
and being by me first duly sworn, declared that the
statements herein are true, and acknowledged to me
she executed the same.
Notary Pu dfor Idaho ' .f OTAR }'
Residing at: -, I • -1 ••
My Commission expires ' 1/ ;;; t 1G