HomeMy WebLinkAboutHabitat Restoration Sciences Inc; 2009-12-22;Carlsbad Municipal Water District
MINOR PUBLIC WORKS PROJECT
Project Manager Sherri Howard Date Issued:
(760) 602-2756 Request For Bid No.:.
Mail or Deliver to: CLOSING DATE:
Purchasing Department Bid shall be deposited in the Bid Box located
City of Carlsbad in the first floor lobby of the Faraday Center
1635 Faraday Avenue located at 1635 Faraday Avenue, Carlsbad,
Carlsbad, CA 92008-7314 CA 92008 until 4:00 p.m. on the date of Bid
Award will be made to the lowest responsive,
fesponsible contractor based on total price. Ptease use typewriter or black ink.
Envelope MUST include Request For Bid
Ne, r
DESCRIPTION
Labor, materials and equipment to perform Soil Imprinting per the attached specification.
See Exhibit A for Scope of Work.
No job walk-through scheduled. Contractors to arrange site visit by contacting:
Project Manager: Sherri Howard
Phone No. 760-602-2756
Submission of bid implies knowledge of all job terms and conditions.
Contractor acknowledges receipt of Addendum No. 1 ( ), 2 ( ), 3 ( ), A ( ), 5 ( ^
SUBJECT TO ACCEPTANCE WITHIN (90) DAYS
Name and Address of Contractor Escondido/CA/92Q29
City/State/Zip
Habitat Restoration Sciences, Inc.
Name 760-519-7230
Telephone
_650 Alpine Way
Address
Fax
-1 - - Revised: 5/17/00
Name
contn
Name
JOB QUOTATION
ITEM NO.
1
UNIT
Lump
Sum
QTY
1
DESCRIPTION
1.07 acres Soil Imprinting
TOTAL PRICE
$7,500.00
Quote Lump Sum, including all applicable taxes. Award is by total price.
Evaluation and Award. Bids are binding subject to acceptance at any time within 90 days after
opening, unless otherwise stipulated by the Carlsbad Municipal Water District. Award will be made
by the Purchasing Officer to the lowest, responsive, responsible contractor. The District reserves the
right to reject any or all bids and to accept or reject any item(s) therein or waive any informality in the
bid. In the event of a conflict between unit price and extended price, the unit price will prevail unless
price is so obviously unreasonable as to indicate an error. In that event, the bid will be rejected as
non-responsive for the reason of the inability to determine the intended bid. The District reserves the
right to conduct a pre-award inquiry to determine the contractor's ability to perform, including but not
limited to facilities, financial responsibility, materials/supplies and past performance. The
determination of the District as to the Contractor's ability to perform the contract shall be conclusive.
Contractor's License Number
Authorized Signature
Fife TTolfa
Classification(s)
Printed Name and Title Expiration Date
Date
TAX IDENTIFICATION NUMBER
(Corporations) Federal Tax I.D.#: £>D "
OR
(Individuals) Social Security #:
-2-Revised: 5/17/00
DESIGNATION OF SUBCONTRACTORS
Set forth below is the full name and location of the place of business of each sub-contractor whom
the contractor proposes to subcontract portions of the work in excess of one-half of one percent of
the total bid, and the portion of the work which will be done by each sub-contractor for each
subcontract.
NOTE: The contractor understands that if he fails to specify a sub-contractor for any portion of the
work to be performed under the contract in excess of one-half of one percent of the bid, the
contractor shall be deemed to have agreed to perform such portion, and that the contractor
shall not be permitted to sublet or subcontract that portion of the work, except in cases of
the public emergency or necessity, and then only after a finding, reduced in writing as a
public record of the Awarding Authority, setting forth the facts constituting the emergency or
necessity in accordance with the provisions of the Subletting and Subcontracting Fair
Practices Act (Section 4100 et seq. of the California Public Contract Code).
If no subcontractors are to be employed on the project, enter the word "NONE."
PORTION OF WORK
TO BE
SUBCONTRACTED
Item
No.
1
Description of
Work
Seed and
imprintinq
SUBCONTRACTOR*
% of Total
Contract
46%
Business Name and Address
Hydroplant Hydroseeding, Inc.
356 S. Pacific Street
San Marcos, CA 92078
License No.,
Classification
& Expiration
Date
397933
SBE
Yes
X
No
Total % Subcontracted:
* Indicate Small Business Enterprise (SBE) of subcontractor.
-3-Revised: 5/17/00
CARLSBAD MUNICIPAL WATER DISTRICT
MINOR PUBLIC WORKS CONTRACT
(Less than $25,000)
Labor:
I propose to employ only skilled workers and to abide by all State and City of Carlsbad Ordinances
governing labor, including paying the general prevailing rate of wages for each craft or type of worker
needed to execute the contract.
Guarantee:
I guarantee all labor and materials furnished and agree to complete work in accordance with
directions and subject to inspection approval and acceptance by: Pi-f~€. Tr"Cri"bs3(
(project manager)
Wage Rates:
The general prevailing rate of wages for each craft or type of worker needed to execute the contract
shall be those as determined by the Director of Industrial Relations pursuant to Sections 1770, 1773
and 1773.1 of the Labor Code. Pursuant to Section 1773.2 of the Labor Code, a current copy of the
applicable wage rates is on file in the Office of the City Engineer. The contractor to whom the
contract is awarded shall not pay less than the said specified prevailing rates of wages to all workers
employed by him or her in execution of the contract.
False Claims
Contract hereby agrees that any contract claim submitted to the District must be asserted as part of
the contract process as set forth in this agreement and not in anticipation of litigation or in conjunction
with litigation.
Contractor acknowledges that California Government Code sections 12650 et seq., the False Claims
Act, provides for civil penalties where a person knowingly submits a false claim to a public entity.
These provisions include false claims made with deliberate ignorance of the false information or in
reckless disregard of the truth or falsity of the information.
The provisions of Carlsbad Municipal Code sections 3.32.025, 3.32.026, 3.32.027 and 3.32.028
pertaining to false claims are incorporated herein by reference.
Contractor hereby acknowledges that the filing of a false claim may be subject to the contractor to an
administrative debarment proceeding wherein the contractor may be prevented from further bidding
on public contracts for a period of up to five years and that debarment by another jurisdiction is
grounds for the Carlsbad Municipal Water District tp^fisqualify the Cor^ractq^or subcontractor from
participating in contract bidding.
Signature:/
Print Name: £Hg TVottgt
-4- Revised: 5/17/00
Commercial General Liability, Automobile Liability and Workers' Compensation Insurance:
The successful contractor shall provide to the Carlsbad Municipal Water District, a Certification of
Commercial General Liability and Property Damage Insurance and a Certificate of Workers'
Compensation Insurance indicating coverage in a form approved by the California Insurance
Commission. The certificates shall indicate coverage during the period of the contract and must be
furnished to the District prior to the start of work. The minimum limits of liability Insurance are to be
placed with insurers that have: (1) a rating in the most recent Best's Key Rating Guide of at least
A-:V and (2) are admitted and authorized to transact the business of insurance in the State of
California by the Insurance Commissioner.
Commercial General Liability Insurance of Injuries including accidental death, to any one person in
an amount not less than $500,000
Subject to the same limit for each person on account of one accident in an amount not less than
$500,000
Property damage insurance in an amount of not less than $100,000
Automobile Liability Insurance in the amount of $100,000 combined single limit per accident for
bodily injury and property damage. In addition, the auto policy must cover any vehicle used in the
performance of the contract, used onsite or offsite, whether owned, non-owned or hired, and whether
scheduled or non-scheduled. The automobile insurance certificate must state the coverage is for
"any auto" and cannot be limited in any manner.
The above policies shall have non-cancellation clause providing that thirty (30) days written notice
shall be given to the District prior to such cancellation.
The policies shall name the Carlsbad Municipal Water District as additional insured.
Indemnity:
The Contractor shall assume the defense of, pay all expenses of defense, and indemnify and hold
harmless the City and the District, and its officers and employees, from all claims, loss, damage,
injury and liability of every kind, nature and description, directly or indirectly arising from or in
connection with the performance of the Contract or work; or from any failure or alleged failure of
Contractor to comply with any applicable law, rules or regulations including those related to safety
and health; and from any and all claims, loss, damages, injury and liability, howsoever the same may
be caused, resulting directly or indirectly from the nature of the work covered by the Contract, except
for loss or damage caused by the sole or active negligence or willful misconduct of the City or the
District. The expenses of defense include all costs and expenses including attorneys' fees for
litigation, arbitration, or other dispute resolution method.
-5- Revised: 5/17/00
Jurisdiction:
The Contractor agrees and hereby stipulates that the proper venue and jurisdiction for resolution of
any disputes between the parties arising out of this agreement is San Diego County, California.
Start Work:
Completion:
I agree to start within.
I agree to complete work within
Proceed.
working days after receipt of Notice to Proceed.
working days after receipt of Notice to
CONTRACTOR:
HABITATxgESTO
CARLSBAD MUNICIPAL WATER DISTRICT,
a Public Agency organized under the Municipal
Water Act of 1911, and a Subsidiary District of
trTe-ettytsfCarJsbad
(print name and title)
(e-mail address)ATTEST:
(address)
(city/state/zip)
(telephone no.)
(fax no.)
(Proper notarial acknowledgment of execution by Contractor must be attached.
Chairman, president or vice-president and secretary, assistant secretary, CFO or assistant treasurer
must sign for corporations. Otherwise, the corporation must attach a resolution certified by the
secretary or assistant secretary under corporate seal empowering the officer(s) signing to bind the
corporation.)
APPROVED AS TO FORM:
RONALD R. BALL, City Attorney
BY:
Deputy City Attorney
-6-Revised: 5/17/00
SOILIMPRINITING
Imprinting Equipment
To ensure successful germination, imprinting methodology will be used. Land imprinting is
the formation by mechanical means of smooth-walled V-shaped furrows in the soil surface.
It shapes the soil, creating small depressions which concentrate water, seed, litter, and
other resources and prevent seeds being washed out by rainfall. Seeds are pressed into the
soil, promoting capillary contact and improving germination, and mycorrhizal inoculum is
injected into the root zone. This method has been shown to be more successful than
hydroseeding in establishing native species in arid climates, such as southern California,
when irrigation is not used.
The imprinter should either be a tractor-drawn or winch-pulled implement with angular
teeth welded to a steel roller. The imprinter differs dramatically from conventional method
of tillage such as plowing, discing, cultivating or drill-seeding in that it does not turn over
the soil and entails minimal disruption of the surface litter. It is equipped with machinery
for dispensing seed and other materials, and chambers to accommodate ballast. The
ballast is adjusted to produce optimum imprints in a range of soil conditions. Imprinting
should be conducted following the specification below.
Characteristics of Imprinting Teeth
• The height of the imprinting teeth shall be at least four inches.
• Imprinting teeth shall be V-shaped in transverse section, and may be rectangular or
triangular in longitudinal section.
• Any imprinter used on a slope greater than 4:1 shall have teeth ten inches or less in
length, with a gap of two inches or more between the end of one segment and the
beginning of the next. If the imprinting teeth are longer than ten inches, the
machine shall be operated at all times with the long dimension in a horizontal
orientation to the slope.
• The crest-to-crest spacing between teeth shall be less than two feet. One foot is
often optimum for land restoration.
• The apical angle of the triangular cross section of the imprinting teeth shall be
ninety degrees or less, with acute teeth preferred for the steepest slopes.
• Any imprinter use on a slope greater than 2:1 shall have a "saw tooth" pattern, in
which the apex of the tooth is offset, giving a long and a short side to each tooth.
-7- Revised: 5/17/00
The angle between front and rear faces of the imprinting teeth shall be 60 degrees
or less. The imprinter shall be operated so that the long face of the impression lies
upslope of the short face.
Weight Per Unit Area on Teeth
• The static pressure on the soil surface is measured by dividing the total weight of
the imprinter, including any ballast, by the total area of tooth contact when the
teeth have penetrated halfway into the soil.
• The static pressure on the soil surface shall be at least 12 pounds per square inch
and less than 48 pounds per square inch. The lower weights are for softer soils and
the higher weights for harder or drier soils.
• No more pressure shall be used than that required to obtain a full-tooth imprint.
Maximum Length of Roller
• No individual roller shall be more than eight feet in length, except in the case of
level, rock-free land that will not cause a long roller to leave unimprinted areas.
• More than one roller may be attached to a single imprinting device as long as each
roller swivels independently over surface obstructions. In this case, the combined
rollers may be any practical width.
imprinting Execution
Desired Soil Conditions
• The soil may be imprinted when dry if it is soft enough to allow penetration of the
imprinting teeth to their full depth, and firm enough to permit the formation of
smooth-walled, firm impressions.
• If the dry soil does not allow formation of quality impressions, it shall not be
imprinted until rainfall or irrigation leaves it in a suitable condition.
• Soil that is too hard to accept a pattern that conforms to performance
specifications, with a properly weighted imprinter, may be ripped before
imprinting. Adjustment of the imprinter ballast is preferred over ripping where
feasible.
• Clay soil shall not be imprinted while it is so wet that substantial quantities of it
stick to the roller.
-8- Revised: 5/17/00
Form of Impressions
• Impressions shall be of V-shaped cross section and ten inches or less in length if
used on a slope exceeding 4:1.
• A pyramidal shape is acceptable as long as the apical angles between all faces are
ninety degrees or less.
• The imprinting pattern shall provide a raised soil ridge that prevents continuous
movement of drainage water between impressions.
• At least 70 percent of the soil surface shall bear impressions, apart from any
peripheral turn-around area and areas rendered untreatable by rocks or other
natural features.
• At least 70 percent of the impressions shall reach 90 percent of the full tooth
depth.
• At least 70 percent of the impressions shall have smooth and firm soil over at least
70 percent of their surface area.
Compaction of Finished Impressions
• Bulk density is defined as the oven-dry weight of soil per unit of original field
volume, and shall be calculated per standard soil testing methods.
• No portion of the imprinted soil profile shall exceed the bulk density indicated for
the soil type in Table 3.
Table 1. Maximum Allowable Bulk Densities after Imprinting
Soil
Loamy Sand
Sandy Loam
Loam
Silt Loam
Clay Loam
Clay
Maximum Bulk Density (Mg/m3)
1.75
1.65
1.55
1.45
1.45
1.40
Vegetation Cover
• The imprinting operation shall be carried out on bare earth or on land that has only
a minimal vegetative cover, except as specified below.
-9-Revised: 5/17/00
• If the amount and nature of vegetative cover is sufficient to interfere with soil
contact and the formation of quality impressions, such vegetation shall be removed
prior to imprinting by burning, raking, or other suitable means.
• Interfering vegetation may be cut or chopped into fragments of eight inches or less
if the depth of accumulated material is small enough to allow the formation of
quality impressions.
Operating Procedures
• The imprinter shall be pulled at a speed low enough to ensure that the full weight
of the roller bears upon the soil at all times.
• If the impressions are longer than ten inches, the long dimension of each imprint
shall lie parallel to the contour of the slope.
• If imprint length is ten inches or less, the imprinter may be used in any orientation
to the slope.
Proximity to Edges of Seeded Area
• The imprinting pattern shall extend fully to the boundaries of the project area.
• The area at the project boundary may serve as a turn-around area and normally will
be imprinted by a final pass along the project perimeter. If conditions do not
permit imprinting the perimeter, a turn-around area within the project need not be
fully imprinted.
• Any unimprinted turn-around area on the project boundary shall be no wider than
the smallest turning radius allowed by the equipment.
Seed Distribution
• Seed dispensed by the imprinting device shall be in firm contact with the soil.
• The seed bin shall contain no residual seed from previous uses.
• Wheat bran or approval substitute shall be mixed with seed to appropriate dilution
ratio to prevent seed segregation. The optimum mixing radio is usually 1:1 by
volume.
• Planting shall take place before germination of the seeds introduced by imprinting
unless approved by the Restoration Ecologist.
• The planting crew shall step in the impressions rather than the ridges to preserve
-10- Revised: 5/17/00
the imprinting pattern.
• No irrigation, weeding, or other maintenance activity shall be allowed to damage or
modify the imprinting pattern.
Acreages
The following table identifies the location and acreage of the coastal sage scrub
restoration:
Plot Number
9
10
11
Revegetation Type
Coastal Sage Scrub Restoration
Coastal Sage Scrub Restoration
Coastal Sage Scrub Restoration
Acreage
0.54
0.37
0.16
Seed Procurement and Inspection
The seed mix will be contract-ordered and prepared using the plant palette in Table 4 from
the Calavera Dam Habitat Revegetation, Maintenance, and Monitoring Program. All seed
shall originate in the vicinity of coastal North San Diego County (target area). Seed
materials will be purchased from a qualified vendor specializing in native seeds (for
example S&S Seeds or equivalent) and experienced in the collection and preparation of
native seed material for native habitat restoration/revegetation. If seed is not readily
available from a reputable supplier (see Section 4.3), it must be collected within the target
area (within a 30 mile radius from the project site).
All seed shall be labeled according to state and federal laws, and be delivered to the
Project site in sealed containers. The quantity of pure live seed supplied shall meet or
exceed the quantity shown in the specified mixes. Seed shall not contain more than 0.5
percent weed seed by volume. Each sealed container shall include original seed supplier's
tags indicating the container weight, seed type (genus and species), source, collection date,
percent purity of the seed, percent seed germination, and date the seed was tested. If not
guaranteed by the supplier, at time of delivery, samples must be drawn from each seed
mix by the Restoration Ecologist and tested to ensure compliance with the seed
specifications. The seed supplier shall certify, in writing, the location and date of seed
collection
Seed Mix
The following Table 4 is from the Calavera Dam Habitat Revegetation, Maintenance, and
Monitoring Program.
-11 -Revised: 5/17/00
Table 4 - Mix A: CSS Creation Seed Mix
% Pur/Germ Ihs/acre ........ scientific name • •ion name
15 60
20 80
50 20
1530
98 80
40 30
90 60
5 70
70 60
70 60
85 50
2
2
6
3
1
2
3
1
1
2
3
Artemesia ealiforntea
Deinandra fasciculate
Eriogonum faseiculatum
Hazard!?! squaraisa
He! lanthanum scoparium
Isocoma inenziesii
Lotus scoparius
Mimulus aurantiacus
Nassella tepida
Nassella pulchra
Salvia mdlifera
Coastal sagebrush
Fascicled Tarvveed
Coast California buckwheat
Sawtooth goldeiibush
Peak rush-rose
Spreading Goldenbush
Coastal Deerweed
Monkey flower
Foothill necdlegrass
Purple needlegrass
Black sage
JPIamaaa .
47,0 Total pounds per acre
Plot Locations
•PLOT 11
,'OQ
PLOT 9
- PLOT 9
PLANTING - PLOT NOS. 9, 10, & 11
J.L
-12-Revised: 5/17/00