**About this resource:**

> EPA is providing this resource solely for informational purposes. The
> agency can not attest to the accuracy, effectiveness, legality or
> usefulness of the information provided, nor does the inclusion or
> reference of such language constitute an endorsement by EPA.

**Document Name:**

> CDOT Particulate Filter Spec

**Organization/Agency Responsible:**

> Connecticut Dept. of Transportation (CDOT)

**Contact:** Jim Kocaba

> Connecticut Dept. of Transportation
>
> 860-594-2082
>
> james.kocaba@po.state.ct.us

**Description:** Connecticut DOT\'s I-95 New Haven Harbor Crossing
Project\
\
Connecticut DOT's I-95 New Haven Harbor Crossing (I-95 NHHC) project is
a 12-year bridge and highway upgrade that will reconstruct and widen
Interstate 95 along the state's coastline. CDOT's focus is on reducing
diesel chemical and particulate emissions. Under the Connecticut Clean
Air Initiative (CCAI), all contractors and subcontractors are required
to adhere to idling specifications and to reduce hazardous diesel
emissions using control devices, such as alternate fuels, diesel
oxidation catalysts (DOCs), diesel particulate filters (DPFs), and truck
staging zones.

ITEM #0110xxxA -- Diesel particulate filter

**Description:** Work under this item shall consist of furnishing and
installing diesel particulate filter(s) (DFP) on two (2) diesel powered
non-road construction equipment with engine horsepower (HP) ratings of
100 HP and above, or as directed by the Engineer. It is the intent of
this specification to select, analyze, and use DFP on diesel powered
non-road construction equipment in real world operations, experiencing
typical work duty cycles typical of construction activities on ConnDOT
construction projects.

The work shall also include all necessary research, evaluation,
pre-testing and testing required to ensure that the appropriate device
is selected and utilized in accordance with this specification and the
manufacturer's recommended instructions.

**Materials:** The Diesel Particulate Filter shall be (1) included on
the Environmental Protection Agency (EPA) *Verified Retrofit Technology
List* and/or California Air Research Board (CARB) Verification List and
(2) is verified by EPA, CARB or certified by the manufacturer to provide
a minimum emissions reduction of 50% PM~10~, 40% CO, and 50% HC. On-road
EPA/CARB technologies are acceptable for usage to meet the requirements
of this specification.

**Construction Methods:**

[General:]{.underline} The requirements of the "Notice to Contractor --
Diesel Vehicle Emissions Controls" are to be adhered to by the
Contractor for the selected test equipment, with the exceptions required
under this specification, notably the evaluation, selection and
installation of Diesel Particulate Filters. If a conflict exists between
the Notice and this specification, the more restrictive shall apply.

[Evaluation and Selection of Diesel Particulate Filter
(DPF):]{.underline} The Contractor shall have the selected diesel
powered non-road construction equipment and its associated project duty
cycle evaluated by qualified technical representative(s) from the
manufacturer of the DPF, or their designee. The evaluation shall include
a top-down technology review beginning with diesel particulate filters
(DPFs), or similar emissions control technology that offers the highest
reductions technically achievable and verified by EPA or CARB to provide
emission reductions greater than 50% for PM~10~, 40% for CO, and 50% for
HC. It may be necessary to evaluate more than one piece of equipment to
determine the qualifying construction equipment that has the appropriate
duty cycle and operating temperature profile.

In the event that the evaluation does not support the utilization of a
DPF to achieve the noted emissions reductions, then the evaluation
report must indicate alternate technologies in a top-down order of
emissions reductions that would be suitable for the indicated work duty
cycle. The minimum device allowed would be the oxidation catalysts
specified in the "Notice to Contractor -- Diesel Vehicle Emissions
Controls".

An evaluation report shall be prepared by the technical representative
performing the evaluation. The report shall be submitted to the Engineer
for review prior to ordering any DPF or alternate technology for use on
the test equipment. The report shall include at a minimum the following
information:

-   Description of the evaluated diesel powered non-road construction
    equipment, including make, model, horsepower rating, model year, and
    equipment number;

-   Description of work duty cycle evaluated and expected of the tested
    equipment;

-   Operating temperature profile of the test equipment;

-   Tests performed and methods employed to perform said tests;

-   DPFs and alternate technologies considered for utilization on the
    test equipment, including reasons for qualifying or rejecting each
    technology in accordance with the manufacturer's recommended
    specifications and/or the EPA/CARB guidelines;

-   Any special requirements for utilizing the recommended device (i.e.
    ultra low sulfur diesel fuel, engine or equipment modifications,
    etc.);

-   EPA/CARB verifications or manufacturer's certifications; and

-   Schedule of manufacture and installation.

> The evaluation report, certifications and catalog cuts shall be
> submitted to the Engineer for review prior to ordering the DPF or
> other device, unless approved by the Engineer in writing.

[Installation and Use of Diesel Particulate Filter (DPF):]{.underline}
After approval of the selected DPF or other device, the Contractor shall
install the device in accordance with manufacturer's recommendations. A
Technical Representative of the manufacturer must be present during the
installation and be available during any maintenance of the device.

[Close-out Report:]{.underline} A close-out report summarizing the
selection, installation and utilization of the device must be prepared
and submitted to the Engineer within 30 days of the last day the tested
equipment is no longer utilized on this project.

The report shall include at a minimum the following information:

-   Description of the evaluated diesel powered non-road construction
    equipment, including make, model, horsepower rating, model year, and
    equipment number;

-   Description of work duty cycle observed on the tested equipment with
    the device installed;

-   Operating temperature profile of the test equipment with the device
    installed;

-   Tests performed, if any, and methods employed to perform said tests;

-   Maintenance required and performed on the equipment and device;

-   Any special requirements utilized on the equipment (i.e. ultra low
    sulfur diesel fuel, engine or equipment modifications, etc.);

-   Timeline indicating operations and usage of the test equipment and
    associated operating conditions.

There shall be no time granted to the contractor for compliance with
this specification. The contractor's compliance with this specification
and any associated regulations shall not be grounds for claims as
outlined in Section 1.11 -- "Claims".

**Method of Measurement:** The following work will be measured for
payment and paid in accordance with Article 1.09.04 -- "Extra and
Cost-Plus Work":

-   [Evaluation and Selection of Diesel Particulate Filter
    (DPF):]{.underline} The evaluation, testing, selection of the
    construction equipment, the evaluation by qualified technical
    representative(s) from the manufacturer of the DPF, or their
    designee, evaluation report, selection of device and all associated
    submittals will be measured.

-   [Installation and Use of Diesel Particulate Filter
    (DPF):]{.underline} The cost of the Diesel Particulate Filter will
    be measured for payment. Receipted invoices documenting the purchase
    of the DPF are required.

-   [Close-out Report:]{.underline} The close-out report shall be
    measured.

The following work will not be measured for payment:

-   [Installation and Use of Diesel Particulate Filter
    (DPF):]{.underline} The installation and use of the Diesel
    Particulate Filter will not be measured for payment, but shall be
    included in the general cost of the contract.

-   [Equipment and Labor:]{.underline} All use and maintenance of the
    tested construction equipment, including all labor, fuel, parts,
    tools, and other associated equipment and costs will not be measured
    for payment, but shall be included in the general cost of the
    contract.

**Basis of Payment:** The sum of money shown on the Estimate and in the
itemized proposal as "Estimated Cost" for this work will be considered
the bid price even though payment will be made as described below. The
estimated cost figure is not to be altered in any manner by the bidder.

Should the bidder alter the amount shown, the altered figures will be
disregarded and the original price will be used to determine the total
amount for the contract. The basis of payment for this work shall be as
follows:

[Evaluation and Selection of Diesel Particulate Filter
(DPF):]{.underline} The evaluation, testing, selection of the
construction equipment, the evaluation by qualified technical
representative(s) from the manufacturer of the DPF, or their designee,
evaluation report, selection of device and all associated submittals
shall be paid in accordance with Article 1.09.04 -- "Extra and Cost-Plus
Work".

[Installation and Use of Diesel Particulate Filter (DPF):]{.underline}
The cost of the Diesel Particulate Filter shall be paid in accordance
with Article 1.09.04 -- "Extra and Cost-Plus Work". Receipted invoices
documenting the purchase of the DPF are required. The installation and
use of the Diesel Particulate Filter will not be measured for payment,
but shall be included in the general cost of the contract.

[Close-out Report:]{.underline} The close-out report shall be paid in
accordance with Article 1.09.04 -- "Extra and Cost-Plus Work".

[Equipment and Labor:]{.underline} All use and maintenance of the tested
construction equipment, including all labor, fuel, parts, tools, and
other associated equipment and costs shall be included in the general
cost of the contract.

All materials, equipment, labor, submittals, tools, labor, and services
of the technical advisor not identified shall be included in the general
cost of the contract.

[Pay Item]{.underline} [Pay Unit]{.underline}

Diesel Particulate Filter Est'd