HomeMy WebLinkAboutBID - 7002 IRRIGATION DESIGN AND DRAFTING SERVICES (5)F6rt of
Purchasing
ADDENDUM No. 1
SPECIFICATIONS AND CONTRACT DOCUMENTS
Financial Services
Purchasing Division
215 N. Mason St. 2n° Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
970.221.6707
fcgov.com/Purchasing
Description of Bid: 7002 Irrigation Annual Design and Drafting Services
OPENING DATE: 3:00 P.M. (Our Clock) January 20, 2009
To all prospective bidders under the specifications and contract documents described
above, the following changes are hereby made.
Questions and Answers:
Q: Does the consultant need to design central control systems?
A: Not used on our neighborhood parks so do not see this as something we need at this
time.
Q: How much work does this entail?
A: The amount could vary dramatically. We know for sure the consultant who succeeds
with this proposal will be designing a neighborhood park of approximately 9 acres
and will potentially be assisting in water feature renovation design if they have that
expertise as well.
Q: What insurance will be required?
A: $500,000
Q: Is construction observation services required as part of this contract?
A: It could be asked for on a project to project basis.
Q: Will you short list?
A: Yes, interviews will be sometime the week of February 91h
Q: What information is needed for the proposal as far as rates are concerned?
A: Hourly rates for different people and perhaps for different services provided.
Q: What certifications are required?
A: Irrigation Association, Certified Irrigation Designer Landscape/Turf in any category,
commercial, residential or golf course design — is preferred.
Greeley CPIU published by the Colorado State Planning and Budget Office will be used as a
guide. Written notice of renewal shall be provided to the Professional and mailed no later than
ninety (90) days prior to contract end.
5. Early Termination by City/Notice. Notwithstanding the time periods contained
herein, the City may terminate this Agreement at any time without cause by providing written
notice of termination to the Professional. Such notice shall be delivered at least fifteen (15)
days prior to the termination date contained in said notice unless otherwise agreed in writing by
the parties. All notices provided under this agreement shall be effective when mailed, postage
prepaid and sent to the following address:
Professional: City: With Copy to:
In the event of any such early termination by the City, the Professional shall be paid for services
rendered prior to the date of termination subject only to the satisfactory performance of the
Professional's obligations under this Agreement. Such payment shall be the Professional's sole
right and remedy for such termination.
6. Design, Project Insurance and Insurance Responsibility. The Professional shall
be responsible for the professional quality, technical accuracy, timely completion and the
coordination of all services rendered by the Professional, including but not limited to designs,
plans, reports, specifications, and drawings and shall, without additional compensation,
promptly remedy. and correct any errors, omissions, or other deficiencies. The Professional
shall indemnify, save and hold harmless the City its officers and employees, in accordance with
Colorado law, from all damages whatsoever claimed by third parties against the City and for the
City's costs and reasonable attorney's fees arising directly or indirectly out of the Professional's
negligent performance of any of the services furnished under this Agreement. The Professional
shall maintain commercial general liability insurance in the amount of $ combined single
limits and errors and omissions insurance in the amount of
7. Compensation. In consideration of services to be performed pursuant to this
Agreement, the City agrees to pay Professional on a time and reimbursable direct cost basis
designated in Exhibit "B", consisting of ( ) page(s), attached hereto and incorporated
herein by this reference. At the election of the City, each Work Order may contain a maximum
fee, which shall be negotiated by the parties hereto for each such Work Order. Monthly partial
payments based upon the Professional's billings and itemized statements are permissible. The
amounts of all such partial payments shall be based upon the Professional's City -verified
progress in completing the services to be performed pursuant to the Work Order and upon
approval of the Professional's direct reimbursable expenses. Final payment shall be made
following acceptance of the work by the City. Upon final payment, all designs, plans, reports,
specifications, drawings, and other services rendered by the Professional shall become the sole
property of the City.
8. City Representative. The City will designate, prior to commencement of work, its
project representative who shall make, within the scope of his or her authority, all necessary and
proper decisions with reference to the project. All requests for contract interpretations, change
orders, and other clarification or instruction shall be directed to the City Representative.
9. Project Drawings. Upon conclusion of the project and before final payment, the
Professional shall provide the City with reproducible drawings of the project containing accurate
information on the project as constructed. Drawings shall be of archival, prepared on stable
mylar base material using a non -fading process to provide for long storage and high quality
reproduction. "CD" disc of the as -built drawings shall also be submitted to the owner in and
AutoCAD version no older then the established city standard.
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10. Monthly Report. Commencing thirty (30) days after Notice to Proceed is given on
any Work Order and every thirty days thereafter, Professional is required to provide the City
Representative with a written report of the status of the work with respect to the Work Order,
Work Schedule and other material information. Failure to provide any required monthly report
may, at the option of the City, suspend the processing of any partial payment request.
11. Independent Contractor. The services to be performed by Professional are those
of an independent contractor and not of an employee of the City of Fort Collins. The City shall
not be responsible for withholding any portion of Professional's compensation hereunder for the
payment of FICA, Workers' Compensation, other taxes or benefits or for any other purpose.
12. Personal Services. It is understood that the City enters into this Agreement
based on the special abilities of the Professional and that this Agreement shall be considered as
an agreement for personal services. Accordingly, the Professional shall neither assign any
responsibilities nor delegate any duties arising under this Agreement without the prior written
consent of the City.
13. Acceptance Not Waiver. The City's approval of drawings, designs, plans,
specifications, reports, and incidental work or materials furnished hereunder shall not in any way
relieve the Professional of responsibility for the quality or technical accuracy of the work. The
City's approval or acceptance of, or payment for, any of the services shall not be construed to
operate as a waiver of any rights or benefits provided to the City under this Agreement.
14. Default. Each and every term and condition hereof shall be deemed to be a
material element of this Agreement. In the event either party should fail or refuse to perform
according to the terms of this agreement, such party may be declared in default.
15. Remedies. In the event a party has been declared in default, such defaulting
party shall be allowed a period of ten (10) days within which to cure said default. In the event
the default remains uncorrected, the party declaring default may elect to (a) terminate the
Agreement and seek damages; (b) treat the Agreement as continuing and require specific
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performance; or (c) avail himself of any other remedy at law or equity. If the non -defaulting
party commences legal or equitable actions against the defaulting party, the defaulting party
shall be liable to the non -defaulting party for the non -defaulting party's reasonable attorney fees
and costs incurred because of the default.
16. Binding Effect. This writing, together with the exhibits hereto, constitutes the
entire agreement between the parties and shall be binding upon said parties, their officers,
employees, agents and assigns and shall inure to the benefit of the respective survivors, heirs,
personal representatives, successors and assigns of said parties.
17. Law/Severability. The laws of the State of Colorado shall govern the
construction, interpretation, execution and enforcement of this Agreement. In the event any
provision of this Agreement shall be held invalid or unenforceable by any court of competent
jurisdiction, such holding shall not invalidate or render unenforceable any other provision of this
Agreement.
18. Prohibition Against Employing Illegal Aliens. Pursuant to Section 8-17.5-101,
C.R.S., et. seq., Professional represents and agrees that:
a. As of the date of this Agreement:
1. Professional does not knowingly employ or contract with an illegal alien
who will perform work under this Agreement; and
2. Professional will participate in either the e-Verify program created in
Public Law 208, 104th Congress, as amended, and expanded in Public Law 156,
108th Congress, as amended, administered by the United States Department of
Homeland Security (the "e-Verify Program") or the Department Program (the
"Department Program"), an employment verification program established
Pursuant to Section 8-17.5-102(5)(c) C.R.S. in order to confirm the employment
eligibility of all newly hired employees to perform work under this Agreement.
b. Professional shall not knowingly employ or contract with an illegal alien to
perform work under this Agreement or knowingly enter into a contract with a
subcontractor that knowingly employs or contracts with an illegal alien to perform work
under this Agreement.
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C. Professional is prohibited from using the e-Verify Program or Department
Program procedures to undertake pre -employment screening of job applicants while this
Agreement is being performed.
d. If Professional obtains actual knowledge that a subcontractor performing work
under this Agreement knowingly employs or contracts with an illegal alien, Professional
shall:
1. Notify such subcontractor and the City within three days that Professional
has actual knowledge that the subcontractor is employing or contracting with an
illegal alien; and
2. Terminate the subcontract with the subcontractor if within three days of
receiving the notice required pursuant to this section the subcontractor does not
cease employing or contracting with the illegal alien; except that Professional
shall not terminate the contract with the subcontractor if during such three days
the subcontractor provides information to establish that the subcontractor has not
knowingly employed or contracted with an illegal alien.
e. Professional shall comply with any reasonable request by the Colorado
Department of Labor and Employment (the "Department") made in the course of an
investigation that the Department undertakes or is undertaking pursuant to the authority
established in Subsection 8-17.5-102 (5), C.R.S.
f. If Professional violates any provision of this Agreement pertaining to the duties
imposed by Subsection 8-17.5-102, C.R.S. the City may terminate this Agreement. If this
Agreement is so terminated, Professional shall be liable for actual and consequential
damages to the City arising out of Professional's violation of Subsection 8-17.5-102,
C.R.S.
g. The City will notify the Office of the Secretary of State if Professional violates this
provision of this Agreement and the City terminates the Agreement for such breach.
19. Special Provisions. Special provisions or conditions relating to the services to
be performed pursuant to this Agreement are set forth in Exhibit "C", consisting of
page(s), attached hereto and incorporated herein by this reference.
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THE CITY OF FORT COLLINS, COLORADO
By:
James B. O'Neill II, CPPO, FNIGP
Director of Purchasing & Risk Management
Date:
ATTEST:
City Clerk
APPROVED AS TO FORM:
Assistant City Attorney
[Insert Professional's name] or
[Insert Partnership Name] or
[Insert individual's name]
Doing business as [insert name of business]
By:
Title:
CORPORATE PRESIDENT OR VICE PRESIDENT
Date:
ATTEST:
(Corporate Seal)
Corporate Secretary
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EXHIBIT "A"
WORK ORDER FORM
PURSUANT TO AN AGREEMENT BETWEEN
THE CITY OF FORT COLLINS
AND
DATED:
Work Order Number:
Purchase Order Number:
Project Title:
Commencement Date:
Completion Date:
Maximum Fee: (time and reimbursable direct costs):
Project Description:
Scope of Services:
Acceptance
Professional agrees to perform the services
identified above and on the attached forms in
accordance with the terms and conditions
contained herein and in the Professional
Services Agreement between the parties. In the
event of a conflict between or ambiguity in the
terms of the Professional Services Agreement
and this work order (including the attached
forms) the Professional Services Agreement
shall control.
Professional
By:
Date:
User
The attached forms consisting of (_) pages
are hereby accepted and incorporated herein, by
this reference, and Notice to Proceed is hereby
given.
City of Fort Collins
By:
James B. O'Neill II, CPPO, FNIGP
Director of Purchasing and Risk Management
(over $60,000.00)
Date:
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ATTACHMENT A
IRRIGATION INSTALLATION
CITY OF FORT COLLINS
1. General
1.1 A Certified Irrigation Designer shall do irrigation design or someone approved by
the City of Fort Collins Parks Division.
1.2 Irrigation system design and installation shall be monitored, inspected, and
approved by the City. Taps should be sized so the park can be irrigated in 8-10
hours minimizing impact to users. Irrigation taps should be separate from the
restroom tap so that sewer charges are not incurred on irrigation water. Irrigation
systems shall be installed and maintained so that no heads spray onto any streets in
such a way that they spray passing motorists or pedestrians. Heads should be
adjusted wherever possible so that they do not overspray streetside sidewalks.
1.3 The irrigation system must comply with the Uniform Plumbing Code and with the
City of Fort Collins Electrical Code.
1.4 Any deviation in taps from the approved construction plans must be approved by
the City Water / Wastewater Division prior to installation. Any water service line shall
be coordinated with City of Fort Collins Water Utility. Any deviation in layout of the
irrigation system from the approved construction plans must be reviewed and
approved by the City Parks Division prior to installation.
1.5 Design:
The irrigation system must be designed to provide full coverage and matched
'precipitation rates. Main line piping shall be sized based on flow demands (gpm's);
velocities shall not exceed 5.0 feet per second. Lateral piping shall be sized based
on flow demands (gpm's). Velocities shall not exceed 6.5 feet per second. Principles
of Xeriscape shall be utilized in the design of the irrigation system. The distribution
uniformities for spray heads should be .55, rotor heads should be .65, stream rotors
should be .75 and impact heads should be .65. An irrigation audit should be
conducted by a certified irrigation auditor to confirm the targets have been met.
Some design considerations include: shrub and perennial beds are to be zoned
separately from turf areas; limited irrigation on medians in parking lots; consider
separate bubbler zones for trees in drought situations, no valves on any sports fields;
ballfield hose hookups with 1 '/2" swing joints for ballfield on both sidelines; all part
circles heads should be rotors, full circles can be either impacts or rotors; sloped
areas are to have separate zoning for heads at the higher elevations from those at
the lower elevation and areas with different exposures are to be zoned separately.
Zones on ballfields should be independent to allow watering for seed or sod just to.
affect one field. Check valve -in -head should be used when head has that option to
save water. Check valves -in -head are to be used for all areas adjacent to walkways
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and at the bottom of berms and pond areas. The blowout fitting for winterization
downstream of the backflow should be 1'/2" for mainlines 3" or larger and 1" for
mainlines 2'/2" and smaller.
2. Materials
2.1 Mainline:
Class 200 PVC, NSF approved.
1. If 3" or larger: Ringtite pipe.
2. If 2'/2" or smaller. glue joint.
2.2 Laterals:
a. 2" or larger: Class 200 PVC, NSF approved.
b. 1 '/2" or 1": Class 200 PVC, NSF approved.
c. No laterals smaller than 1" are permitted.
d. Trickle tubing shall be weather and UV resistant material.
e. Polyethylene Drip Pipe: NSF approved, SDR pressure rated pipe, only as
approved for drip applications.
2.3 Pipe Fittings:
a. Funny Pipe (pop-up turf heads only): to be compatible to the elbows
needed for the sprinkler heads. The maximum length of funny pipe allowed is
3 foot.
b. Lateral fittings: Schedule 40, Type 1, PVC solvent weld with ASTM
Standards D2466 and D1784.
c. Wrought copper or cast bronze fittings, soldered or threaded per
installation details for all copper pipes.
d: Mainline fittings: Ductile Iron for 3" and larger, PVC Schedule 80 for 2 1/2"
and smaller.
e. No prefabricated swing joints.
2.4 Sleeves:
Ductile Iron Pipe or PVC under all paved surfaces.
a. Sizes to be a minimum of two sizes larger than the pipe being sleeved.
Minimum 2" diameter or larger for irrigation lines. Use full sections of pipe to
minimize the number of joints under pavement.
b. Wires to be in separate sleeve from pipe, 2" min. size pipe for control wire
sleeves.
c. Sleeves shall have marker tape on upper side and both ends for future
locates.
2.5 Valves:
a. Remote Control Zone Valves: Electrically operated, appropriate for the
water supply, with manual bleed device and flow control stem. It shall have
a slow -opening and slow -closing action for protection against surge pressure.
It shall have a pressure regulator for pop-up spray head zones. If the valve is
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2" or larger it should have a brass body. If the valve is 1 '/2" or smaller it can
be either brass or plastic. Valve brand to be approved by the Parks
Department.
b. Isolation Gate Valves: Kennedy 1571 X or Matco #100M, able to withstand
a continuous operating pressure of 150 psi. Clear waterway equal to full
diameter of pipe. Shall be opened by turning 2" square nut to the left (wheel
opening is unacceptable).
c. Manual Drain Valve: 3/4" ball valve with tee handle. Watts, #B-6000, or
approved equal.
d. Quick Coupling Valves: 1" brass, Rainbird #5RC units with rubber cover.
Keys Rainbird 55K 1" brass key.
2.6 Valve Boxes:
House valves in valve box with matching locking cover (AMETEK brand only). Only
one valve per box. Install in box sizes to allow work on components.
2.7 Control System:
a. Controller: Irritrol MC Series controller 18 Stations or equal to be
approved,by the Parks Department. Controller shall be remote ready and
use ADAPT-1 cable. Each controller shall have a separate Eicon MRX-RR
receiver. One Eicon TRX-5V will be provided by the contractor for project.
Frequency to be determined by Parks Department. Controller box shall be
weather tight and vandal resistant, with locking exterior disconnect.
b. Control System Enclosure: If the park has a pump house, install in pump
house on same wall as the door. If there is no pump house, install in a Strong
Box or equal to be approved by the Parks Department.
c. Surge Protection: 8 foot copper grounding rod, double oft stranded copper
wire, exothermic connection to ground rod, grounding buss receptacle,
ground terminal strip and Irritrol SPD-587 surge protector per details.
d. Install Mini-Clik II or wireless rain sensor, manufacturer to be approved by
the Parks Department (one per controller) at location near the controller but
not where it will receive precipitation from the irrigation system or easily
vandalized. Owner must approve location.
e. Run valve wires to junction box in the pump house. Label wires with the
identification number of the remote control valve activated by the wire. Install
terminal strips and run 18 gauge wire from junction box terminal strips to
controller. Wire shall be in conduit.
2.8 Electric Control Wiring:
#14 solid copper direct burial OF or PE cable, UL approved, or larger, per system
design and manufacturer's recommendations.
a. Five wires with consistent color scheme throughout:
Red = live (one per valve)
White = ground (#12 solid copper direct burial Cable)
Black, blue and green = extra
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Q: How does this process work and how does it work when other departments want to
use this contract besides Parks Planning or Parks?
A: Other departments typically call Purchasing to ask if we have a consultant on board
that can handle their need. Then that department representative would contact the
consultant directly to explain their need. The consultant would then prepare a
proposal/work order based on the set hourly rates given in this RFP. The department
representative would then have the consultant working directly with them upon
receipt of a work order signed by both parties. Basically works the same way for the
different managers in Parks and Parks Planning.
Q: Will the pre -proposal attendance sheet be posted?
A: Yes
Q: Correction to the typo on page 4, Instructions to the Consultants, in the 1 st bullet
referring to resumes required, regarding "roadway" design and/or surveying?
A: The word "roadway" should be replaced with "irrigation". The words "and/or
surveying" should be removed.
Please contact John D. Stephen, CPPO, CPPB, Senior Buyer at (970) 221-6777 with
any questions regarding this addendum.
RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN
STATEMENT ENCLOSED WITH THE BID/QUOTE STATING THAT THIS ADDENDUM
HAS BEEN RECEIVED.
where renewal is a way of life
b. Wire connections should be made with "pentite" type dry splices to join
control wires to remote control valves.
c. Wire splices need to be in a valve box not less than every 2500 ft. not
counting remote control valve boxes.
d. Two wire systems should be considered when practical.
2.9 Sprinkler Heads:
All heads shall be of the same manufacturer as specified on the plans, and marked
with the manufacturer's name and model in such a way that materials can be
identified without removal from the system. City will specify brand and models to
match other equipment in use in public system in the vicinity.
a. Gear driven Rotor heads: Hunter, Rainbird, or approved equal.
b. Impact heads: Rainbird, or approved equal.
c. Pop -Up Spray heads: Rainbird 1800 PRS SAM, or approved equal.
2.10 Backflow Preventers:
Backflow preventer shall be Febco brand and shall be installed and tested in
compliance with the Colorado Primary Drinking Water Regulations.
3. Inspection
Locate all utilities prior to trenching and protect from damage. Required calls shall
include, but are not limited to the following: Call 221-6660 for Parks Division locates.
Call 1-800-922-1987 for Utility Locates in the City of Fort Collins. Contact other
Utilities as required. Inspect tap or other existing irrigation system, as applicable,
prior to work.
4. Execution
4.1 Pipe trenching:
a. Install pipe in open cut trenches of sufficient width to facilitate thorough
tamping/puddling of suitable backfill material under and over pipe.
b. Trench depths:
1. Mainline - Minimum of 24" deep from top of pipe to finished grade.
2. Lateral - Minimum of 16" deep from top of pipe to finished grade.
3. Sleeves - Install sleeves at a depth, which permits the encased
pipe or wiring to remain at the specified burial depth.
4.2 Sleeves:
Boring shall not be permitted unless obstruction in pipe path cannot be moved, or
pipe cannot be re-routed.
a. Mainline installed in existing sleeves at greater depth than adjacent pipe,
shall have a manual drain valve at each end if the sleeve is longer than
20 feet, or at one end if the sleeve is less than 20 feet.
b. Install sleeve so ends extend past edge of curb, gutter, sidewalk, bike
path or other obstruction, a minimum of 2 feet.
c. Mark all sleeves with an 'Y' chiseled in walk (or other surface) directly
over sleeve location.
d. Sleeves installed for future use shall be capped at both ends.
e. Separate sleeve (2" min. size) shall be used for all wiring.
f. Sleeves shall not have joints. If joints are necessary, only solvent welded
joints are allowed.
g. Compaction of backfill for sleeves shall be 95% of Standard Proctor
Density, ASTM D698-78. Use of water (puddling) around sleeves for
compaction will not be allowed.
h. Laterals along property lines shall be installed 2-3 feet inside of property
line and teed over for heads. This avoids problems with homeowners
installing fences at later dates.
4.3 Pipe Installation:
a. Use Teflon tape on all threaded joints; only schedule 80 pipe may be
threaded.
b. Reducing pipe size shall be with insert reducing bushing at the tee.
c. Snake PVC lateral pipe from side to side within trench.
d. Cut pipe ends square and de -burr. Clean pipe ends before using primer
and solvent cement. Join in manner recommended by manufacturer and in
accordance with accepted industry practices. Cure for 30 minutes before
handling and 24 hours before allowing water in pipe.
e. Backfill shall be free from rubbish, stones larger than 2" diameter, frozen
material and vegetative matter. Do not backfill in freezing weather. If backfill
material is rocky, the pipe shall be bedded in 2" of fill sand covered by 6" of
fill sand.
f. After puddling or tamping, leave all trenches slightly mounded to allow for
settling.
g. Compact to proper densities depending on whether surface area over the
line will be paved or landscaped.
4.4 Thrust Blocks:
a. Shall be installed where PVC mainline (2 %2" or larger) changes direction
over 20 degrees.
b. Minimum of one cubic foot of concrete shall be used per thrust block.
c. Keep pipe joint clean of concrete. Do not encase joint or pipe.
d. Place wiring away from thrust block to avoid contact with the concrete.
Use clear plastic sheeting to isolate the concrete from other materials.
4.5 Valve Installation:
Install at least 12" from and align with adjacent walls or paved edges.
a. Automatic Remote Valves: Install in such a way that valves are accessible
for repairs. Make electrical connection to allow pigtail so solenoid can be
removed from valve with 24" (min.) slack to allow ends to be pulled 12" above
ground.
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1. Flush completely before installing valve. Thoroughly flush piping
system under full head of water for three minutes through furthest
valve, before installing heads.
2. Valve assembly to include ball valve and union for ease of
maintenance and repair. The union should be between the ball valve
and the electric control valve. For ball valves larger than 2", plastic
ball valves may be used.
3. Install in valve box per details.
b. Quick Coupler Valve: Install in 10" round locking valve box. Flush
completely before installing valve. Thoroughly flush piping system under
full head of water for three minutes through furthest valve.
c. Isolation Gate Valves:
Install in valve box as per detail.
d. Valve Boxes:
1. Brand all valve boxes with the following codes: "SV" and the
controller valve number per as built plans for all remote control valves;
"DV" for all drain valves; "GV" for all isolation valves; "DRGV" for all
drip system isolation valves; "QC" for all quick coupling valves; "WA"
for all winterization assemblies; "FM" for all flow meter assemblies;
and "MV" for all master valve assemblies. Use a branding iron stamp
with 3" high letters.
2. Valve box shall NOT rest on mainline. Use brick or other non -
compressible material per detail. Top of valve box to be flush with
finish grade. Use add-ons to depth of valve gravel.
3. Install valves in box with adequate space to access valves with
ease. Valves shall not be too deep to be inaccessible for repairs. 3"
depth of 3/4" washed gravel to be placed in the bottom of each valve
box with enough space to fully turn valve for removal (see detail).
4.6 Head Installation:
a. Set heads plumb and level with finish grade. In sloped area, heads to be
tilted as necessary to provide full radius spray pattern.
b. Flush lateral lines before installing heads. Thoroughly flush piping system
under full head of water for three minutes through furthest head, before
installing heads. Cap risers if delay of head installation occurs.
c. Pop -Up Heads along walks and bikeways: Bed heads in 6" layer of sand
under the base of the head. Heads should be 2" from edge of walk.
d. Nozzles: Supply appropriate nozzle for best performance.
e. Adjustment: Adjust nozzles and radius of throw to minimize overspray
onto hard surfaces.
4.7 Electrical Connections:
New connections to be approved through City of Fort Collins Light & Power.
Call 221-6700 to obtain power information and request connection. Actual
connection to transformer or other power source to be done by City of Fort
Collins Light and Power. Work to be coordinated and scheduled with Light &
Power at 221-6700. All work other than actual connection, including access
FM
to the transformer box where applicable, to be supplied by the contractor. All
materials to be provided by the contractor. When working near any City
Electric facility, prior coordination and approval is required.
4.8 Controller Installation:
a. To be installed in an above ground location suitable to prevent vandalism
and provide protection from adverse weather conditions, and per City
direction. If a building is available, place controller inside building. All
exposed wiring to and from the controller shall be encased in galvanized
metal conduit. Exterior controllers to be installed on 6" thick concrete pad.
b. Install Controller per City direction and in accordance with manufacturers'
specifications. Install surge protection, grounding rods and other accessory
components as specified.
c. Attach wire markers to the ends of control wires inside the junction box.
Label wires with the identification number of the remote control valve
activated by the wire. Then run 18 gauge wire to the controller.
4.9 Wiring:
a. Comply with City of Fort Collins electrical codes
b. Power source brought to controller to a ground fault receptacle installed
within controller casing.
c. String control wires as close as possible to mainline, consistently
along and slightly below one side of the pipe.
d. Leave minimum loop of 24" at each valve and controller and at each
splice, at the ends of each sleeve, at 100-foot intervals along continuous runs
of wiring, and change of direction of 90 degrees or more. Band wires
together at 10' intervals with pipe wrapping tape.
e. Install common ground wire and one control wire for each remote control
valve. Multiple valves on a single control wire are not permitted. Install three
extra wires, as specified, to the furthest valve on the system and/or each
branch of the system, i.e. 2 or more extra wires per 12 valves.
5. Testing
All tests to be run in the presence of City of Fort Collins Parks' representative.
Schedule all tests a minimum of 48 hours in advance of tests. Repeat any failed tests
until full acceptance is obtained.
5.1 Pressure Test:
Leave mainline uncovered at joints and fittings. Place a pressure gauge
(capable of reading pressures up to 120 psi minimum) on a Quick Coupling
valve attached to the system. Fill mainlines with water and bring to full
pressure. If new system is an add -on to existing system, isolate the new
system from the old system after filling. Record pressure readings at 15-
minute intervals for 4 hours. Pressure shall not drop more than 10% of initial
reading. If pressure drops more than 10%, a thorough walkthrough of the
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mainline shall be made to discover leakage and corrected. Repeat test until
maximum desired pressure drop is achieved.
5.2 Operational Test:
Activate each remote control valve from the controller in the presence of City
of Fort Collins Parks representative. Replace, adjust or move heads and
nozzles as needed to obtain acceptable performance of system. Replace
defective valves, wiring or other appurtenances to correct operational
deficiencies.
6. Completion Services
6.1 When project construction is complete, request from Parks' representative a
punch list inspection for Construction Acceptance:
a. Demonstrate system to Parks and Recreation personnel.
b. Provide Parks and Recreation personnel with ordering information
including model numbers, size and style for all components.
c. Provide two sets of as built drawings per below, showing system as
installed with each sheet clearly marked "AS -BUILT DRAWINGS", the name
of the project and all information clearly provided:
1. One set of reproducible Mylar, no larger than 24" x 36".
2. One set of all sheets reduced to 11" x 17", with each station.color
coded, and each sheet plastic laminated.
3. Provide as -built drawing on computer disk in a *.DWG format.
d. Clean Up: Remove all excess materials, tools, rubbish and debris
from
site.
6.2 Once Construction Acceptance is obtained, begin warranty and maintenance
period by contractor. Maintain irrigation system in optimal working condition for
duration of period between Construction Acceptance and Final Acceptance. Make
periodic adjustments to system to achieve most desirable application of water.
6.3 Request Final Acceptance inspection at least 30 days before the end of one-year
maintenance period, from City Parks Division personnel.
a. Provide Parks and Recreation personnel operating keys, servicing tools,
test equipment, warranties/ guarantees, maintenance manuals, and
contractor's affidavit of release of liens. Keys, tools and other operating
equipment need to be turned over to Parks. Submittal of all these items must
be accompanied by a transmittal letter and delivered to the Parks offices
(delivery at the project site is acceptable with signed receipt).
7. GuaranteeNVarranty and Replacement
For the period following Construction Acceptance Notice by City of Fort Collins, and
prior to Final Acceptance, all irrigation materials, equipment, workmanship and other
appurtenances are to be guaranteed/ warranted against defects. Settling of trenches
22
or other depressions that damages structures or landscaping caused by settling and
other defects to be corrected by the contractor at no cost to the City of Fort Collins.
Make repairs within seven days of notification by the City of Fort Collins Parks'
representative. Guarantee / Warranty applies to all originally installed materials and
equipment, and to replacements made during the guarantee/warranty period.
END OF SECTION
23
ATTACHMENT B
PREFABRICATED PUMP STATION
SECTION 1-GENERAL SPECIFICATIONS
A. MAJOR DESIGN CRITERIA
The power supply to the station shall be 3 phase, 60 hertz, 460 volts. The station shall be a
variable speed drive system and shall conform to the following specifications without exception.
B. ASSEMBLY
All of the station components shall be mounted on the skid in a professional manner. The
height of the station shall not exceed (78) inches, excluding any lighting fixtures. Prefabrication
shall include all work except for the installation of components that extend into the wet well.
The station shall be structurally sound to prevent excessive noise during operation. At least 2
grooved end pipe fittings shall be installed in each pump discharge spool for easy alignment
with the pumps. No PCB, asbestos, or other environmentally unsafe materials shall be used in
the construction of the station. All bolts shall be zinc plated for corrosion resistance.
C. TESTING
On completion of assembly, the pumping station shall be hydrostatically tested at not less than
200 PSIG. Before shipment, the assembled pumping station shall be thoroughly tested
electrically with the proper line voltage including motor operation.
D. SUBMITTAL DATA
The submittal data for the pumping station shall include, but not limited to: pump curves;
technical data sheets; a system drawing; an electrical schematic; a sequence of operation; the
manufacture's U.L. listing authorization form; a certificate of liability insurance for no less than
one million dollars ($1,000,00.00); and all applicable warranties. .
E. WARRANTIES
The pumping station as a whole shall be warranted in writing by the manufacturer against
defects in design, materials, or construction for a period of 2 years from the date of shipment
when equipped with the standard programmable controller and maintained according to the
manufacturer's instructions. The programmable controller shall be unconditionally warranted for
5 years from the date of shipment. The pumping station manufacturer shall be responsible for
all warranties, pass through warranties are not acceptable.
F. INSTALLATION SUPERVISION AND START-UP
A factory trained technician shall supervise the installation of the pumping station, pumps, and
motors. All equipment and personnel to actually perform the installation shall be provided by
the contracting manufacturer. Complete
start-up and operator training shall also be performed. A minimum of 2 trips of 1 day each shall
be provided for the above.
i
SECTION II -STANDARD MECHANICAL SPECIFICATIONS
A. VERTICAL TURBINE PUMP PERFORMANCE REQUIREMENTS
Pumps shall not exceed their motor's nameplate horsepower at flow rates from zero to design
nor shall they exceed service factor horsepower at runout-
B. VERTICAL TURBINE PUMP CONSTRUCTION REQUIREMENTS
All pump impellers shall be statically balanced. All impellers shall be vertically adjustable by a
hex nut located at the top of each motor. Each pump shaft shall be supported by bearings no
further than 5 feet apart. Each line shaft column section shall be no longer than 5 feet. All
column pipe couplings shall be threaded. The diameter of all shafting shall be large enough to
transmit the maximum horsepower each pump can draw. All pump shaft couplings shall have
left hand threads which tighten during. pump operation. Each pump suction strainer shall be
basket type, with a total inlet area not less than four times the suction bell inlet area. Each
pump head shall be surface mounted and have a 125 class, 200 psig rated, discharge flange
the same size as their respective check valves. The top diameter of each discharge head shall
match the diameter of it's motor base to distribute the load uniformly. A 1/4 inch thick neoprene
pad shall be installed under each pump head for sealing and vibration dampening. Each.
discharge head shall be provided with a drain for the stuffing box waste water and an air release
valve. No waste water shall be permitted to run onto the skid deck. Each discharge head shall
include a stuffing box complete with gland plate, grease seal, packing bushing, adjustable
packing gland, packing, and a water slinger. A continuous bypass line shall be provided on each
pump, from the stuffing box to the wet well, to prevent damage to the packing from heat or
excessive pressure. Each motor shaft shall be removable and couple to the pump head shaft
between the bottom of the motor and the packing gland with sufficient clearance to allow
removal of the packing assembly without motor removal.
C. VERTICAL TURBINE PUMP MATERIAL REQUIREMENTS
Each bowl assembly including suction case, intermediate, and discharge bowls shall be cast
iron with enamel lining inside. Each pump discharge head and gland plate shall be cast iron.
Steel pump heads will only be acceptable if they are completely coated with electrostatically
applied and baked on, epoxy coating. Each impeller, suction and discharge case bearing, ,
column bearing retainer, discharge head bearing, packing follower, packing bushing, and motor
shaft hex nut shall all be bronzed. All intermediate bowl bearings shall be fluted rubber or
bronze. Each pump shaft, line shaft, and motor shaft shall be turned, ground and polished 416
stainless steel. The line shaft couplings and the motor shaft couplings shall be 304 stainless
steel. All column piping and couplings shall be steel. All packing material shall be Teflon
impregnated non -asbestos fibers. Each water slinger shall be rubber. Each pump suction
strainer shall be zinc plated or galvanized steel.
D. PUMP CHECK VALVES
The pump discharge check valves shall be spring loaded, center guided, silent, wafer type. The
valve body shall be cast iron. The internals shall be bronze and stainless steel. A resilient,
buna-a seat must be provided for drip tight sealing. The valve must have a compound, metal
and metal to buna-n, sealing action to prevent damage to the resilient seat. All internal parts
must be replaceable. Each valve shall mount directly to each pump discharge head flange.
The pump check valves shall be 125 class, 200 psig
25
rated and the seat shall have a minimum pressure rating of 300 psig. Check valve sizes shall
be 4 inch with maximum flow rates of 600 gpm (10 feet per second velocity) respectively, at a
2.5 psig pressure drop.
E. PUMP DISCHARGE ISOLATION VALVE
The pump discharge isolation valve shall be of the victaulic butterfly type to be used with
grooved type piping. The valves shall be U.L. listed and be rated in excess of 200 PSI.
F. MISCELLANEOUS ISOLATION VALVES
Isolation vales shall be provided as follows: at each appropriate drain connection, on the air and
water side connections to the air release valve, in the pilot assemblies of all control valves, and
at each pressure gauge tapping. Each isolation valve shall be a full port ball valve rated at 400
psig working pressure with a brass body, a chrome plated brass ball, and a Teflon seat. The
actuating handle shall turn 90 degrees from full -open to full -closed position.
G. WASHDOWN VALVE
A brass hose bib shall be provided on the discharge side of the main control valve for station
washdown.
H. DRAINS
Provide the following drain connections: a drain line without a valve, from each pump discharge
head to carry off packing gland waste water; a drain valve in each pump discharge spool
downstream of the pump check valve; a drain valve in the discharge manifold between the tank
and the control valve near the control valve inlet flange; a drain valve on the discharge side of
the main control valve. All of the above drain connections shall discharge into the wet well. All
drain valves shall be 3/4 inch.
I. PIPING AND FITTINGS
All piping 4 through 10 inch nominal size shall be Schedule 80, black steel, ASTM A120 or A53
Grade B, electric resistance welded pipe. All welded flanges shall be ANSI 1316.5, 150 class,
forged carbon steel, flat faced weld -neck or slip-on type, ASTM A105 Grade B. All welded
fittings shall be seamless, ASTM A234 Grade B. All grooved end fittings shall be rated for a
minimum of 350 psig. All piping smaller than 4 inch shall be schedule 40, galvanized steel,
ASTM A120 Grade B, continuous welded pipe. All threaded fittings shall be galvanized
malleable iron, 150 class, ASTM A126 Grade B. All pressurized tubing material shall be black,
Impolene, polymer for maximum resistance to freeze damage and ease of maintenance. All
pressurized tube fittings shall be brass.
J. PRESSURE GAUGES
Provide a system pressure gauge mounted on the outside of control panel as well as the control
valve mounted interstage and system pressure gauges previously mentioned.
All gauges shall be 3 1/2 inch, glycerin filled, with an accuracy of ANSI Class B or better. All
gauge pressure sensing points shall be equipped with shutoff valves.
K. SKID BASE
The skid base shall be constructed with 6 inch structural steel channel cross members, a 3/4
inch solid steel pump mounting plate and 3/16 inch steel diamond plate safety deck. The skid
shall completely cover the wet well. A wet well access hatch or flap shall be provided. The
underside of the skid shall be coated with an epoxy based, coal tar lining, not less than 10 mils
thick. Skid shall be bolted to the pad to prevent any movement.
26
L. MECHANICAL PACKAGE PAINTING
The entire station, with the exception of the control panel, motors, and the underside of the skid
base, shall be cleaned and painted with a multipart coating system with a total dry -film thickness
of not less than 6 mils. One coat of a modified alkyd, rust inhibiting, industrial enamel primer
shall be applied to a dry -film thickness of not less than 4 mils. Provide a 1 quart can of the
finish paint with the station for job site touchup use.
SECTION III -OTHER MECHANICAL COMPONENTS
A. MOTOR NON -REVERSE RATCHETS
Each motor shall be equipped with a non -reverse ratchet to protect the pumps from reverse
rotation damage caused by a check valve failure or incorrect electrical phasing.
B. PUMP DISCHARGE ISOLATION VALVES
A valve shall be provided in the discharge spool of each pump for easy pump and check valve
isolation during station operation. Each pump discharge valve shall be the same size as it's
upstream check valve. The valves shall be victaulic, butterfly type rated at no less than 200
psig working pressure. Each valve shall have a ten position, locking, lever handle with open
and closed indications. Each valve body and handle shall be cast iron with a nickel plated
ductile iron disc, a 316 stainless steel shaft, and a EPDM rubber seat.
C. DISCHARGE ISOLATION VALVE
A valve shall be provided at the discharge connection for easy isolation of the pumping station.
The discharge valve shall be the same size as the header connection. The valve shall be a lug
end, butterfly type rated at no less than 200 psig working pressure. The valve shall have a 10
position,
locking, lever handle with open and closed indications. The valve body and handle shall be cast
iron with a nickel plated ductile iron disc, a 316 stainless steel shaft, and an EPDM rubber seat.
D. RELIEF VALVE
Provide a 2 inch hydraulically operated, pilot controlled, diaphragm -type, relief valve
downstream of the main control valve. It shall protect the irrigation piping from high pressure
caused by sudden large decreases in the flow rate. The valve shall limit maximum system
pressure by relieving excess pressure without causing surges. It shall be a 250 class threaded,
300 psig rated, angle pattern valve. Pilot controls shall include a pressure relief pilot valve, a
closing speed control to prevent surges, and a valve position indicator to show the relief valves'
position from full open to full closed. Isolation valves shall be provided with the pilot controls at
each occupied inlet, outlet, and cover tapping on the relief valve body to permit easy servicing
and troubleshooting. A flow clean strainer shall be provided to filter all inbound water to the pilot
system. The complete pilot assembly shall be constructed so that it may be removed as a
complete unit for replacement, repair, or winter storage purposes. The materials of construction
for the relief valve, it's pilot valve, and the pilot isolation valves shall be the same as those for
the main control valve. The relief valve discharge shall be piped to waste to the wet well.
E. WYE STRAINER
A 4 inch, 125 class flanged, 200 psig rated, wye strainer shall be installed in the discharge
manifold of the pumping station upstream of the main control valve (as well as the low flow
bypass and/or relief valves if provided). The removable strainer screen shall have a 1/16 inch
27
City
Financial Services
of
Purchasing Division
215 N. Mason St. 2`dFloor
F6rt
Collins
Box 580
Fort
Fort Collins, CO 80522
970.221.6775
P uth s i n
970.221.6707
fcgov.com/Purchas/�ng
REQUEST FOR PROPOSAL
7002 Irrigation Annual Design and Drafting Services
The City of Fort Collins Park Planning Department is seeking a qualified Irrigation Consultant
("Consultant") to provide for irrigation project management, design and drafting services for
various future yet -to -be -determined irrigation projects (primarily parks).
E-Mail submittal shall to e-mailed to: jstephen fcgov.com. Please send a separate e-mail to
confirm that your proposal was received. Written proposals, five (5) will be received at the City
of Fort Collins' Purchasing Division, 215 North Mason St., 2nd floor, Fort Collins, Colorado
80524. Please limit proposal length to 40 total pages or fewer. Proposals will be received
before 3:00 p.m. (our clock), January 20, 2009. Proposal No. 7002 Irrigation Annual Design and
Drafting Services. If delivered, they are to be sent to 215 North Mason Street, 2nd Floor, Fort
Collins, Colorado 80524. If mailed, the address is P.O. Box 580, Fort Collins, 80522-0580.
A pre -proposal meeting will be held Tuesday, January 6 at 2:00 PM at 215 N Mason 2nd
floor in the Training Room.
Questions concerning the scope of the project should be directed to Project Manager Kathleen
Benedict, RLA, ASLA, at kbenedict(D_fcgov.com or (970) 416-2260.
Questions regarding proposals submittal or process should be directed to
John D. Stephen, CPPO, CPPB, Senior Buyer, at jstephen .fcgov.com or (970) 221-6777.
A copy of the Proposal may be obtained as follows:
1. Download the Proposal/Bid from the BuySpeed Webpage,
www.fcqov.com/eprocurement
2. Come by Purchasing at 215 North Mason St., 2nd floor, Fort Collins, and request
a copy of the Bid.
The City of Fort Collins is subject to public information laws, which permit access to most
records and documents. Proprietary information in your response must be clearly identified and
will be protected to the extent legally permissible. Proposals may not be marked 'Proprietary' in
their entirety. Information considered proprietary is limited to material treated as confidential in
the normal conduct of business, trade secrets, discount information, and individual product or
service pricing. Summary price information may not be designated as proprietary as such
information may be carried forward into other public documents. All provisions of any contract
resulting from this request for proposal will be public information.
Sales Prohibited/Conflict of Interest: No officer, employee, or member of City Council, shall have
a financial interest in the sale to the City of any real or personal property, equipment, material,
supplies or services where such officer or employee exercises directly or indirectly any decision -
making authority concerning such sale or any supervisory authority over the services to be
rendered. This rule also applies to subcontracts with the City. Soliciting or accepting any gift,
gratuity favor, entertainment, kickback or any items of monetary value from any person who has
or is seeking to do business with the City of Fort Collins is prohibited.
rev 01 /08
perforation size with 30 percent open area. The strainer body shall be ASTM A126 cast iron
and the screen shall be 304 stainless steel.
F. AUTOMATIC WYE STRAINER BLOWDOWN
Provide a 2 inch, 115 VAC, electric motor operated, ball valve for automatic blow down of the
wye strainer. Pilot or solenoid operated blow down valves are not acceptable since the dirty
water soon makes them fail open. Blowdown operation shall be as follows: When the demand
decrease, the station controls will open the ball valve for a preset amount of time and flush out
the strainer before the second pump stops. The valve shall be rated for 400 psig working
pressure and have a bronze body, a 316 stainless steel ball with a 1 1/2 inch port, and Teflon
seats. The actuator shall have an 8 second cycle time, a NEMA-4 enclosure, a manual
override, and a blowdown selector switch on the control panel that lights up whenever the
blowdown valve is open. The blowdown valve discharge shall be piped to waste
outside of pump house by manufacturer and then by others.
G. LAKE INLET SCREEN ASSEMBLY
A screen has been provided at the inlet of the 12 inch diameter horizontal induction tube leading
from the lake to the station wet well. Make connection to the existing 1 '/2 inch galvanized pipe
that serves the rotating intake screen backwash. Provide a 1 %2 inch motorized ball valve for
automatic backwash from the downstream side of the wye-strainer on the 6 inch discharge pipe
and make connection to the existing pipe in the wet well.
H. BLOWOUT TUBE
Provide a 1 '/2 inch threaded connection downstream of the station isolation valve for
winterization.
SECTION IV -STANDARD ELECTRICAL SPECIFICATIONS
A. ELECTRICAL CONTROL PANEL ASSEMBLY
The pumping station electrical controls shall be mounted in a multiple door NEMA-4 enclosure
fabricated from 14 gauge galvanized steel. Door gaskets of closed grain neoprene sponge shall
be provided around each door as an effective weather and dust seal. The interior back panel
shall be fabricated from 12 gauge steel. The complete enclosure shall be painted with Industrial
Grade, baked on, white, enamel, paint. Each door handle shall operate a 3 point, draw down
latch and feature a key lock.
All external operating devices shall be dust and weatherproof. All internal components of the
panels shall be mounted on the removable back panel. Mounting screws for components shall
not be tapped into the enclosure. All wiring involving internal power and control components
shall be completed within this enclosure. No external cable trays or wiring thruways shall be
permitted. All control circuit components shall be located behind a separate single door while all
motor and main power circuit components shall be located behind the remaining doors. No
water line connections shall be permitted anywhere inside the enclosure.
All secondary control components shall be powered with 120 VAC or 24 VDC. Indicating pilot
lights shall be transformer type using 6 volt bulbs. All control relays shall be plug in type for
easy replacement. Each control relay shall be provided with an integral neon light to indicate
when the relay is energized.
The complete control panel assembly shall be U.L. Listed as an industrial control panel to
ensure operator safety. The pumping station manufacturer's serial numbered U.L. label shall
appear inside the enclosure and all applicable components used to construct the assembly shall
be U.L. Listed or Recognized. Non U.L. Listed control panel assemblies are not acceptable.
All wiring shall be 600 VAC rated, THW or THWN, stranded copper wire installed according to
National Electrical Code standards. All wiring from the control panel to the motors shall be
sized according to NEC requirements based on motor full load current. A grounding cable sized
to NEC requirements shall be included in the liquid -tight conduit from each motor to the control
panel. There shall be no splices between the motor starters and the motor connection boxes.
All control wiring carrying more than 24 volts, shall be 14 gauge with wire numbers at all
termination points. The wiring to all devices outside the control panel shall be contained in
metal lined, liquid -tight conduit.
B. VARIABLE FREQUENCY DRIVE
The variable frequency drive shall be an Allen Bradley model 1336VT or approved equal.
C. PROGRAMMABLE CONTROLLER
Provide an Allen Bradley model SLC 502 programmable controller to control all functions of the
station. Relays may be used for interface purposes only. Time delay relays may only be used
for functions that require adjustable delay
settings.
The programmable controller shall have the following features:
1) A nonvolatile memory (no battery needed) which
prevents program loss due to power failures.
2) An easily replaceable EPROM chip which allows
program changes to be made by the factory and
transmitted to the field for simple loading into the
controller by the operator.
3) Status lights for power, run, error, inputs, and
outputs for ease of monitoring.
4) Latching DIN rail mounts and safe disconnecting
terminal strips to allow the controller to be
changed in 30 seconds or less while the pumps are
running in "HAND".
5) 2 amp rated, dry contact, outputs. Triac outputs
are not acceptable.
6) Environmentally designed for use in locations where
electromagnetic noise, voltage spikes, high temp-
urature, humidity, and mechanical shock exist.
7) The electrical panel shall be U.L. listed.
The pumping station manufacturer must meet the following requirements:
Factory personnel must have at least five years of programming experience, and a list of other
stations which have a programmable controller and are presently operating in the field must be
submitted upon request.
29
General
There are three modes of operation for the variable speed drive pumping station
(Automatic/Pressure, Automatic/Line Fill, Manual). The primary mode is the
(automatic/pressure)
mode. When in this mode, pumps are sequenced on/off with the VFD to maintain a constant
system pressure. This mode of operation is standard and is the primary mode of operation.
The secondary mode of operation (automatic/line fill) is for filling the system after a prolonged
downtime in operation and/or for initial start-up. In this mode a pre -determined flow rate is
programmed into the PLC and the VFD is ramped up accordingly in speed to maintain the
programmed flow rate. The third mode of operation is the (manual) mode. When in manual, the
pumps will run independent of the PLC (automatic) programming and will run continuously until
a stop (off) command is given. This mode should only be used to test equipment, or, in case of
PLC failure.
Switches & Pushbuttons
1) Reset
The reset pushbutton is used to clear all latching
faults and/or to reset any VFD faults. Faults
that are resettable with this pushbutton are; low
suction pressure (or low lake level), low discharge pressure (line break), high
discharge pressure.
2) Manual/Off/Auto
This switch selects between the manual mode and
the automatic mode described above. When in the
(off) position, all pumps/motors are turned off.
When in the (manual) mode, the VFD pump can be
controlled by an external speed pot and all safety
shutdowns/alarms remain active. When in the
(automatic) mode, The PLC controls all functions
of the constant speed pumps/motors and the VFD
pump/motor.
3) Pump #_ off/on
These switches allow for the control of each
individual pump. When in the (manual) mode the
pumps are turned on or off based on the switch
switch position. When in the (automatic) mode,
the switch is placed in the on position for the
PLC to determine when/if that particular pump is
to come on based on flow demand.
4) Line Fill/Normal
This switch allows the user to select between.
these two modes of automatic operation. The
(LineFill) mode uses a flow meter to send a signal
to the PLC which then increases or decreases the
VFD speed to maintain a constant amount of water
to be pumped into the system.
30
5) Wye Strainer Valve - Man/Off/Auto
This switch controls the positioning of the valve
(open or closed). When in the (manual) position
the valve will open and flush the Wye Strainer.
When in the (auto) position, the valve opens when
the PLC sends a signal at a pre -determined time
interval.
6) Override/Active
This switch allows the user to override certain
alarms and/or normal shutdown periods such as low
discharge pressure and/or low suction pressure.
This switch is normally in the (active) mode which
allows for shutdowns and alarms.
7) SpeedPot
The speed pot allows for control of the VFD speed when in the (manual) mode of
operation.
Indicator Lights
1) Pump #_ Run Light
This light indicates if that particular pump is
running. If the light is flashing, the PLC has
signaled the pump/motor to start but a run signal
was not received.
2) VFD Fault
This light indicates that the VFD has experienced
a fault. The VFD has an L.E.D. readout of up to
31 individual faults. The individual faults pin
point the particular problem.
3) Low Discharge Pressure
This light indicates that the discharge pressure
has remained below a pre -determined set point for
a period of time. This would typically indicate a
line break or a run out condition.
4) High Discharge Pressure'
This light indicates that the discharge pressure
has risen over a pre -determined set point for a
period of time.
5) Low Intake Level
This light indicates that the lake level has fall-
en below a pre -determined set point for a period
of time.
6) Hour Meters
Each pump/motor has individual run hour meters.
The PLC selects the pump/motor with the least
amount of hours for starting first and the pump/
motor with the most hours for stopping first.
31
7) Motor Overload
This light indicates an overload condition for the
constant speed pump/motors.
System Operation
1) Automatic/Pressure
When the discharge pressure falls below the start pressure set point, the VFD pump
motor (#1) will start. With pump #1 running and demand increasing, eventually the VFD
pump/motor will reach a maximum speed at which time the flow will continue to increase
and the pressure will decrease. At that time the PLC will drop the VFD pump/motor to
3/4 speed and start pump #2 or the pump with the least amount of hours. As demand
continues to increase, the VFD pump/motor increases in speed until it again reaches the
maximum speed.
With all pumps running and demand decreasing, pump #1 will slow to a point where it is
no longer moving any water. The PLC will receive a signal from the no flow switch
located on pump #1 discharge piping. The PLC will stop the constant speed pump while
increasing the speed of the VFD pump/motor
(#1) to maintain the set point pressure. If demand (flow) continues to fall, the VFD
pump/motor (#1) continues to decrease in speed until a no flow signal is received.
2) Manual
In the manual mode of operation the pumps will come on as they are turned on and
remain on until turned off. When in manual mode the VFD speed is controlled by the
speed pot.
3) Automatic/LineFill
In the LineFill mode the VFD pump/motor (#1) receives a speed signal from the PLC
based upon a pre -determined flow rate signal from the flow transducer. At that time the
PLC will control the speed based on an increase of 1 PSI/sec.
D. FLOW SENSOR
Provide an insertion type, flow sensor with a glass reinforced nylon (non-magnetic)
impeller, a pennlon impeller bearing, a tungsten carbide impeller shaft, EPDM housing
O-rings, and a brass and bronze housing filled with glass reinforced PPS. It shall be
installed in the metering run of the discharge manifold. It shall be 400 psig rated with a
maximum accuracy within 1 percent of full scale. It shall be capable of reading velocities
from 1/2 to 30 FPS. The impeller shall be nonmagnetically coupled to the transducer.
E. SYSTEM PRESSURE SWITCH/GAUGE
Provide a NEMA-3R enclosed pressure switch/gauge with 2 set point and a 4 1/2 inch
diameter dial. The low set point shall be for lead pump start, backup lag pump start, and
low system pressure and the high set point shall be for backup lag pump stop. Each set
point adjustment shall be made with a knob on the gauge face to allow direct setting.
The switch/gauge shall be surface mounted on the side of the control panel for easy
access.
32
F. CONTROL VALVE LIMIT SWITCH
A single NEMA-4 enclosed, adjustable, limit switch shall be provided to detect when the
main control valve (and bypass control valve if one is used) is closed, indicating a no -
flow condition. The limit switch shall be control valve mounted and stem actuated. It
must have a narrow fixed deadband and a high repeatability rate. Only 24 VDC power
shall be permitted at the limit switch.
G. LOW LEVEL CONTROLS
The wet well level probes shall be 316 stainless steel, 12 VAC conductance type. Float
type or high voltage conductance type probes are not acceptable. The probes shall be
held straight with insulated guide rings. The low level alarm probe will end 2 feet above
the bottom of the pump inlet strainers and the reset probe will be 1 foot shorter to
provide a minimum reset differential. The probe holder shall be in a 2 inch threaded, cast
iron and epoxy coated aluminum, water tight enclosure. The level relay shall be a 120
VAC, differential type relay with a light to indicate normal high level operation.
H. POWER MONITOR
The main power supply feeding the pumping station shall be equipped with a three
phase power monitor. It shall detect phase loss, reversal, shift, or improper sequence.
It shall also detect abnormally low voltage. A voltage adjustment, normal status light,
and line side fuses mounted in puller equipped fuse holders, shall be provided.
I. LIGHTNING ARRESTOR
The main power supply feeding the pumping station shall be equipped with a 3 phase,
600 volt rated, watertight, silicon oxide varistor type, secondary lightning arrestor. It
shall have a current of no less than 100,000 amps, a sparkover voltage rating of 1000,
and a clamping voltage of no more than 2,400 at 20,000 amps (NEMA standard 8x20
uSEC. wave). It shall be bulkhead mounted on the bottom of the control panel, outside
the enclosure.
SECTION V-OTHER ELECTRICAL COMPONENTS
A. MAIN DISCONNECT CIRCUIT BREAKER
Provide an adjustable trip type, main disconnect circuit breaker for fault protection.
Provide a NEMA-4 rated, through -the -door, rotary operated, disconnect handle for easy
resetting and station isolation. (ON -OFF -TRIP) indications shall be provided on the
circuit breaker itself and on the operating handle.
B. MOTOR FUSES
Provide dual element, time delay, class R rejection type fuses in each motor circuit for
fault protection. The fuses shall be installed in fuse holders equipped with rejection type
clips.
C. MOTOR DISCONNECT SWITCHES
Provide a disconnect switch in each motor circuit for easy isolation of the motors and
their fuses. Each disconnect shall have a NEMA-4 rated, through -the -door, rotary
operating handle. (ON-OFF)indications shall be provided on the disconnect switch itself
and on the operating handle. The motor fuses listed above shall be disconnect switch
mounted. No power shall be present at the fuses when the disconnect switches are in
the off position.
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D. FLOW METER/TOTALIZER
Provide a NEMA-4X digital flow meter/totalizer for monitoring the flow rate, totalizing
gallons used, and for shifting the flow sequencing set point range. The display shall be a
black character, LCD type. Adjustable settings for pipe diameter and pulse output shall
be provided. The totalizer shall be capable of counting to 2 billion gallons and it must be
resetable. Both settings and the gallons total shall be held in nonvolatile memory (no
battery required) and protected by a user defined password with hidden override key.
The meter shall be flush mounted on the control panel with a water tight mounting plate.
E. SYSTEM PRESSURE ALARMS
Provide a high system pressure shutdown alarm to protect the irrigation piping from
extended periods of high pressure caused by a control valve and/or relief valve failure.
The alarm shall include a pressure switch, a time delay, and indicating light, and manual
reset. The alarm light shall flash if high system pressure was caused by pressure
trapped at no flow. The low pressure system alarm shall sense a broken pipe condition.
The alarm shall include a pressure switch, a time delay, an indicating light, and manual
reset.
The pressure switch shall have a single set point, with a fixed differential, and a scaled
knob for easy adjustment.
F. MODEM INTERFACE
The PLC shall have the capability of being accessed via a remote telephone modem
interface device. The PLC shall incorporate the hardware necessary to have the modem
communicate with the PLC. The modem shall be supplied by the pump station
manufacturer and wired to the PLC interface device.
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Collusive or sham proposals: Any proposal deemed to be collusive or a sham proposal will be
rejected and reported to authorities as such. Your authorized signature of this proposal assures
that such proposal is genuine and is not a collusive or sham proposal.
The City of Fort Collins reserves the right to reject any and all proposals and to waive any
irregularities or informalities.
Sincerely,
James B. O'Neill II, CPPO, FNIGP
Director of Purchasing & Risk Management
where renewal is a way of life
7002 Irrigation Annual Design and Drafting Services
L PURPOSE
The City of Fort Collins, Park Planning Department, is seeking a qualified Irrigation Consultant
("Consultant") to provide project management, design, and drafting services for various on -going
projects. The successful Consultant will address all of the tasks, issues, and requested
information in their proposal, possess the requisite skills, experience and manpower necessary
to produce high quality projects on time and on budget, and be motivated to work with City staff,
citizens, and to accomplish the project goals and objectives.
IL BACKGROUND
The City has historically demonstrated a need for on -call Irrigation support. Typical services
requested include small project design and construction support, and drafting. This contract may
be utilized by all City Departments.
Ill. SCOPE OF SERVICES
On -Call Irrigation Design and Drafting Services
The Consultant will work closely with City Project Managers to design and/or draft conceptual,
preliminary, and final improvement plans. The Consultant will be responsible for producing plan
documents under the direction of a City Project Manager. The services to be provided will consist
of, but not be limited to, the following: plan documents, removals documentation, renovation
design and documentation, general notes, specifications, construction notes and details suitable
for construction, and construction observation services. The Consultant may also assist in
calculation of plan quantities; irrigation pump design, specifications and details; water feature
design, specification and details; and other work related to producing plan documents. It is
essential that the successful Consultant be familiar with Industry standards such as ALCC and
GreenCo as well as City of Fort Collins Parks Standards for irrigation & pump design in the Parks
Components book. Additional requirements may include:
• Attend coordination and review meetings, public meetings.
• Coordination with other consultants (landscape, engineering, etc.)
When the City provides survey data, that data will be provide in an ASCII file — comma delineated
format (point number, northing, easting, elevation, description).
For new projects, the Consultant may be required to provide design and/or drafting services. In
such case, the Consultant will work closely with a City Project Manager to produce the best
possible design and within the budget constraints associated with that project. The City does not
require specific design software to be used, but final drawings shall be submitted to the City in
AutoCAD and as mylar documents.
Our anticipated need for design and drafting work is expected to be on an "as needed" basis. The
Consultant should expect that services required for individual projects could range up to 500
hours depending on the complexity of the project(s).
2/9/00
The City is seeking Consultants that can excel at delivering projects with complex requirements
(City and Parks Standards, publicly controversial projects, etc.). Equally important is the
Consultant's ability to quickly, efficiently and cost-effectively complete small, straightforward
projects.
IV. INSTRUCTIONS TO THE CONSULTANTS
Please include the following in your proposal:
• Resumes for all members of your firm who are proposed to provide the actual services.
Resumes should include the person's name, title or job classification, qualifications and
experience related to roadway design, computer drafting, and/or surveying, and specify
the length of service with your firm.
• References for your firm.
• A list of computer hardware and software available to your technicians, and designers
which they can use efficiently.
• A statement as to the amount of time they could be available for the next four to six
months.
Planned Consultant Selection Schedule
• Pre -Proposal Meeting: Tuesday, January 6, 2009 2:00 PM
• Due to Purchasing: Tuesday, January 20, 2009
• Interviews with Finalists: week of February 9 h, 2009
The payment for services as described under the Scope of Services shall be based on unit prices,
hourly rates, and reimbursement rates (at cost) for completed services. Please provide hourly
prices and hourly prices for any sub -consultants.
V. TERMS AND CONDITIONS
The agreement will be effective for a period of one year from the date on the Services Agreement,
and may be renewable for four (4) additional one-year terms (one year at a time), at the option of
the City and if the Consultant is agreeable to the same terms as contained herein. Prices shall
remain the same for the first renewal term. A price increase may be negotiated for subsequent
renewals. The Denver Boulder Greeley CPIU published by the Colorado State Planning and
Budget Office will be used as a guide. Billings and payments will be made using the prices listed
on the agreed to Price Schedule. In the event that a service is requested, which is not listed on
the Price Schedule, the Consultant, and the City will negotiate an appropriate unit price for the
service. A. copy of the City's standard Professional Services Agreement is attached.
2/9/00
W. SELECTION CRITERIA AND METHOD
REVIEW AND ASSESSMENT
Professional firms will be evaluated on the following criteria. These criteria will be the basis for
review of the written proposals and interview session.
The rating scale shall be from 1 to 5, with 1 being a poor rating, 3 being an average rating, and
5 being an outstanding rating.
WEIGHTING
FACTOR
QUALIFICATION
STANDARD
2.0
Scope of Proposal
Does the proposal show an understanding of the
project objective, methodology to be used and
results that are desired from the project?
2.0
Assigned Personnel
Do the persons who will be working on the project
have the necessary skills? Are sufficient people of
the requisite skills assigned to the project?
1.0
Availability
Can the work be completed in the necessary time?
Can the target start and completion dates be met?
Are other qualified personnel available to assist in
meeting the project schedule if required? Is the
project team available to attend meetings as
required by the Scope of Work?
1.0
Motivation
Is the firm interested and are they capable of doing
the work in the required time frame?
2.0
Cost and
Do the proposed cost and work hours compare
Work Hours
favorably with the project Manager's estimate? Are
the work hours presented reasonable for the effort
required in each project task or phase?
2.0
Firm Capability
Does the firm have the support capabilities the
assigned personnel require? Has the firm done
previous projects of this type and scope?
2/9/00
Reference evaluation (Top Ranked Firm)
The project Manager will check references using the following criteria. The evaluation rankings
will be labeled Satisfactory/Unsatisfactory.
QUALIFICATION
STANDARD
Overall Performance
Would you hire this Professional again? Did
they show the skills required by this project?
Timetable
Was the original Scope of Work completed
within the specified time? Were interim
deadlines met in a timely manner?
Completeness
Was the Professional responsive to client
needs; did the Professional anticipate
problems? Were problems solved quickly and
effectively?
Budget
Was the original Scope of Work completed
within the project budget?
Job Knowledge
a) If a study, did it meet the Scope of Work?
b) If Professional administered a construction
contract, was the project functional upon
completion and did it operate properly?
Were problems corrected quickly and
effectively?
PROFESSIONAL SERVICES AGREEMENT
WORK ORDER TYPE
THIS AGREEMENT made and entered into the, day and year set forth below by and
between THE CITY OF FORT COLLINS, COLORADO, a Municipal Corporation, hereinafter
referred to as the "City" and , hereinafter referred to as "Professional".
WITNESSETH:
In consideration of the mutual covenants and obligations herein expressed, it is agreed
by and between the parties hereto as follows:
1. Scope of Services. The Professional agrees to provide services in accordance
with any project Work Orders for , issued by the City. A blank sample of a work order is
attached hereto as Exhibit "A", consisting of ( ) pages and is incorporated herein by
this reference. The City reserves the right to independently bid any project rather than issuing a
Work Order to the Professional for the same pursuant to this Agreement.
2. The Work Schedule. The services to be performed pursuant to this Agreement
shall be performed in accordance with the Work Schedule stated on each Work Order.
3. Time of Commencement and Completion of Services. The services to be
performed pursuant to this Agreement shall be initiated as specified on each Work Order. Time
is of the essence. Any extensions of any time limit must be agreed upon in writing by the
parties hereto.
4. Contract Period. [Option 1] This Agreement shall commence , 200 ,
and shall continue in full force and effect until 200 unless sooner terminated as
herein provided. In addition, at the option of the City, the Agreement may be extended for
additional one year periods not to exceed ( ) additional one year periods. Renewals
and pricing changes shall be negotiated by and agreed to by both parties. The Denver Boulder
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