7788 - Informal Amendment 4 Executed
Procurement & Compliance
901 B Texas St., Denton, TX 76209 (940) 349-7100
OUR CORE VALUES
Integrity Fiscal Responsibility Inclusion Transparency Outstanding Customer Service
December 1, 2022
Mr. Dave Myers
Watts Ellison, LLC dba D&D Commercial -
Landscape Management
9076 Forest Lane
Dallas, TX 75243
dave@ddmowing.com
Re: Letter Agreement to Amend (this “Amendment”) File 7788 – Mowing Services between the
City of Denton (“COD”) and Watts Ellison, LLC dba D&D Commercial Landscape
Management dated January 9, 2022 (the “Contract”) – Amendment #4
Dear Mr. Myers,
Thank you for being such a valued partner. By signing this Amendment below, COD and Watts
Ellison, LLC dba D&D Commercial Landscape Management agree that the Contract is hereby deemed
amended to the updated Scope of Work, as shown in Attachment A.
Except as amended by this Amendment, the Contract is not otherwise amended and all other terms
and conditions of the Contract remain in full force and effect, as amended hereby. This Amendment
may be executed in any number of counterparts, each of which shall be deemed an original and all of
which together shall constitute one and the same instrument. Signatures transmitted electronically
shall have the same effect as the delivery of original signatures.
We look forward to future business with your firm.
Regards,
____________________________ ___________________________
Erica Garcia, Buyer Dave Myers, Director
Procurement and Compliance or Authorized Representative
City of Denton Watts Ellison, LLC dba D&D
Commercial Landscape
Management
DocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2
CHINESE PRIVET REMOVAL
D&D LANDSCAPE PO BOX 741236 DALLAS TEXAS 75374
OFFICE 214-233-6697 FAX 214-369-4367
CUSTOMER
City of Denton QUANTITY DESCRIPTION UNIT PRICE AMOUNT
The intent of this work is to ultimately remove 90% of the Chinese
Privet (Ligustrum sinense) within the designated portion of Bowling
Green Park.
1 Year 1 : See the conditions note below 16,749.15$ $16,749.15
DATE 1 Year 2 : Re-cutting the new privet coming up and spraying the
herbicide dictated by the City’s IPM program 1,430.00$ $1,430.00
11/16/2022 1 Year 3 : Re-cutting the new privet coming up and spraying the
herbicide dictated by the City’s IPM program 880.00$ $880.00
ADDRESS SUBTOTAL $19,059.15
Bowling Green Park TAX RATE 0.00%
PHONE SALES TAX
OTHER
E-MAIL TOTAL $19,059.15
Marshall.McGee@cityofdenton.co
m
SALESPERSON
Dave Myers Sign Here to Accept Quote:
ATTENTION
Marshall McGee
PAYMENT TERMS Authorized Rep Date
Net 30
THIS PROPOSAL INCLUDES THE CONDITIONS NOTED:
Using a skid steer on tracks (or similar), with a forestry head, cutting and grinding all of the
privet in the park area shown on the attached map. Any vegetation within a two-foot radius of
a tree 6” or greater in caliper at breast height will need to be cut with loppers, hand
pruners/saw, or chainsaw. All of the grindings/chippings will stay on site to act as soil erosion
control. The fresh cuts, to be sprayed with a approved non selective herbicide within a three
minute span
Attachment ADocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2
12/6/2022
DocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2
SCOPE OF WORK
CHINESE PRIVET REMOVAL
The respondent’s submission shall have accurately described an understanding of the
objectives and scope of the requested products and services and provided an outline of the
process to implement the requirements of the Scope of Work and services necessary. It is
anticipated that the scope of work will include, at a minimum, the following:
GENERAL CONDITIONS
A. Contractor shall require all employees to report to work in clean uniforms, including shirt and
pants. Uniforms shall have the contractor’s name in a manner clearly identifiable to the
public. Contractor must insure that employees wear a shirt at all times.
B. Contractor and employees will be courteous to the public at all times while at the work site.
Conflicts or potential conflicts between required work and public use of a location should
be reported to the City Representative within 12 hours. Contractor shall remove any
employee that is incompetent or endangers persons or property. Employees will not
consume or possess alcohol or use or possess any illegal drugs or be under the influence
of such while on Owner’s property and or while carrying out the requirements of the contract.
Contractor shall immediately remove such employee from the worksite.
C. Contractor shall supply all of his employees with adequate Personal Protective
Equipment.
D. Contractor must provide and maintain a point of contact from 7:00 a.m. until 5:00 p.m.
Monday through Friday. In the event that a call is handled by voice mail, a return call to
the City representative must be received within a maximum of one hour.
DocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2
SCOPE OF WORK
CHINESE PRIVET REMOVAL
The intent of this work is to ultimately remove 90% of the Chinese Privet (Ligustrum sinense)
within the designated portion of Bowling Green Park. The contractor shall, within two weeks of
notice by the City of Denton Parks and Recreation Department, be able to mobilize and
complete the required portion of privet control.
A. Timing. Research suggests the more effective time to remove privet is in the fall. To
maximize efforts, PARD will prioritize initial removal activities during late fall months
and continue to evaluate the situation. When removing privet across large areas it
may be more effective to consider phasing the area in sections. When prioritizing
phasing, it is more important to try to address mature plants or re-growth plants that
have started flowering/producing berries to reduce future distribution. To reach the
goal of 90% eradication will possibly be a two to three-year process of cutting and
applying herbicide or by use of other cultural/mechanical methods.
B. Equipment.
1) Small equipment may be used to remove privet when environmental conditions
permit the use. When conditions cannot be met, privet shrubs will be removed by
hand. Conditions that may inhibit the use of small equipment include:
a) Any stand of trees over 6” DBH and the equipment could negatively impact
beneficial tree canopy.
b) Areas where native vegetation dominates and few privet have invaded the
space.
c) Areas with major topographic changes, making safe equipment mobility
difficult.
d) The equipment may not be operated within two feet of the trunk of a tree 6” or
greater DBH. Privet branches located within the 2-foot boundary must be
hand-cut.
2) Small equipment may include a skid steer with a mulcher. Other parameters
include:
a) The skid steer must have tracks.
b) A drum mulcher is preferred.
c) Mats are required when operating in wetland areas.
3) Chaining may be appropriate when the area is greater than 40 acres and tree
density (6” or greater DBH) is less than 10% of the area.
C. Privet disposal from initial removal. Larger material resulting from the activity will be
managed to allow restoration to occur. Depending on resulting volume, the material
could be shredded to reduce volume or collected to transport to a compost facility.
D. Herbicide use. Whether mechanically cut or hand-cut, all privet cut stumps have a
high probability of recovery and must be treated to reduce re-growth.
1) An herbicide listed in the IPM will be selected for targeted cut stump treatment
and seedling treatment. All cut stump treatment and seedling treatment activities
will follow best-practices as defined by the herbicide manufacturer.
DocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2
SCOPE OF WORK
CHINESE PRIVET REMOVAL
2) To be effective cut-stump treatment must be performed
a) within 30 seconds of the original cut, or
b) within 30 seconds of a new cut made after the original removal activity.
E. Seedling removal. Seedlings should be expected and seeding removal will occur
within one year of the initial privet removal activity.
1) Hand pulling will be prioritized, when feasible.
2) When hand pulling is not feasible, an herbicide listed in the IPM will be applied
with a hand wand by a trained applicator. Precautions will be taken to target the
privet seedling and avoid over-spraying.
F. Volunteer activities. When small equipment use is not available, volunteers may be
employed to hand-cut privet stems. Volunteers will be provided training to identify
privet and common environmental hazards, provided safety training, and supervised
by staff who meet prerequisites listed in Section Error! Reference source not
found..
G. Goats and other alternative privet reduction and removal tools.
1) Goats do not remove the plant but are useful for reducing the volume of privet.
Goats may support hand-removal activities and can be deployed as a pre-
removal measure.
2) Other privet reduction and removal tools and procedures may be evaluated for
efficacy, cost-effectiveness and results in improved privet reduction or removal
and least impacts to the natural environment.
DocuSign Envelope ID: 97E78E8D-91CC-4503-A353-3238CB97A3C2