Amnedment 0001_USACE calc LMH monthly 2025 (31 Jul 25) (2).xlsx

XLSX spreadsheet 145 KB Posted

Attached to
LAKE MONTAUK HARBOR (LMH)
Solicitation number
W912DS25BA019
Issued by

About this file

This file is a NOx Emissions Calculator spreadsheet for the U.S. Army Corps of Engineers New York District's Lake Montauk Harbor Navigation Improvement Project. The calculator provides detailed instructions and worksheets for tracking and calculating nitrogen oxide (NOx) emissions from various types of marine, dredge, and land-based equipment used during the project. The spreadsheet includes comprehensive tables for different engine types, tier levels, horsepower ranges, load factors, and emission factors, allowing contractors to precisely document and estimate emissions across dredging, vessel, and land-side equipment categories for the calendar year 2025.

The calculator is specifically designed for the Lake Montauk Harbor project, which involves deepening the existing navigation channel from -12 feet to -17 feet MLLW, constructing a 100-foot wide deposition basin, and disposing of approximately 100,000 cubic yards of sand and 15,000 cubic yards of hard material. The dredging is scheduled for a three-month window from October through December 2025, with hard material to be transported to Mattituck Reef. The project is located in East Hampton, Suffolk County, New York, with an estimated cost between $5 million and $10 million, and is an unrestricted procurement solicited under contract number W912DS25BA019.

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Instructions

USACE - New York District
Lake Montauk Harbor
NOx Emissions Calculator
Instructions

The table below describes the input fields in the calculator and explains how to correctly complete the input.

Field Name Description Action

Dredge/Engine TypeType of dredge or vessel engineClick on cell under header, pick correct type from pull-down list to right of cell.
Dredge/Engine NameContractor's designationEnter a uniqe name or other identifier for the dredge/vessel/engine.
Tier LevelDetermines the emission rate assigned to the engine based on its year of manufacture and its horsepower. See tables below.Click on cell under header, pick correct tier level from pull-down list to right of cell, based on model year as specified in the "engine level pick list" below. For vessels that have been repowered under a program to provide emission offsets (such as MVERP) the tier level of the engines that were replaced must be entered.
Engine HPMaximum horsepower outputEnter the maximum horsepower of the engine, either manufacturer's rating or rating based on modifications, whichever is higher.
Load FactorAverage assumed engine load factorThis value is generated according to input values.
Emission FactorAverage assumed engine emission factorThis value is generated according to input values.
NOx Control MethodNOx emission reduction method, if anyIf a method of reducing NOx emissions using an aftermarket device or technology has been approved, list the method and enter the approved control percentage under "NOx Control %." (For example, list 90% control as 90.) Under the "NOx Control Method" column use the pull-down to pick the Non-OEM number applicaable to your control method entry.
NOx Control %Reduction effectiveness of proposed control methodThis value is generated according to input values.
Hours per EngineEstimated engine run time - previous months, current month, estimate for remaining monthsEnter the actual engine-on time for the months prior to the reporting month and for the reporting month itself. Also enter the estimated engine hours remaining in the year. For upland disposal material, report dredging activity only (not transport) if the disposal location is not specified by the Corps and is not under the ownership or control of the Corps.
Emissions per EngineEstimated annual engine NOx emissionsThis value is generated according to input values.
* If "Other" is picked from the pull-down list and a number is entered, the choice to go back to a specified control method (A, B, C, etc.)
or "None" requires the user to copy the equation back into the cell that was picked for "Other." If this is not done, the correct value for
control efficiency will not be displayed. (The equation can be copied by using "copy" and "paste" commands using the equation above
or below the cell, or by using the "drag and auto-fill" function from above or below the cell.)
Engine level pick list
Nonroad engines - on dredges and barges or used on land
Marine engines - propulsion and auxiliary engines on vessels such as towboats and crewboats
Standard nonroad engineEngines manufactured before 1996.
Tier 1 nonroad engineEngines manufactured after 1996 (but before TIER 2).
Tier 2 nonroad engineSee implementation schedule below
Tier 3 nonroad engineSee implementation schedule below
Tier 4i nonroad engineSee implementation schedule below
Tier 4 nonroad engineSee implementation schedule below
Standard marine engineMarine engines manufactured before 2007
Cat 1 Tier 1 marineCategory 1 marine engines (less than 5 liters per cylinder) that are not Tier 2
Cat 1 Tier 2 marineEngines known to be Tier 2, Category 1 engines (less than 5 liters per cylinder)
Cat 2 Tier 2 marineCategory 2 marine engines manufactured in 2007 or later
Cat 2 Tier 3 marineCategory 2 marine engines built starting 2013 and certified Tier 3
Cat 1/2 Tier 4 marineFull marine Tier 4 Cat 1 or 2
Implementation Schedule for Nonroad Engines
If engine is in thisand this modelthen theunlessthe engine is in this
horsepower rangeyear or laterengine is amodel year or later
300 - 6002001Tier 22006Tier 3
600 - 7502002Tier 22006Tier 3
100 - 1752003Tier 22007Tier 3
175 - 3002003Tier 22006Tier 3
25 - 1002004Tier 22008Tier 3
> 7502006Tier 2(no Tier 3 standard for >750 hp engines)
Tier 4 schedule
25 - 742013Tier 4
75 - 1742012Tier 4i2015Tier 4
175 - 7492011Tier 4i2015Tier 4
The difference between Tier 4i (interim Tier 4) and full Tier 4 is the presence of additional NOx emission controls on full Tier 4 engines.
Because of regulatory exceptions, documenttion of NOx emissions level may be required if a full Tier 4 engine is claimed.
Load Factors / Emission Factors
NR/MarineNRNRNRNRCat 1/2 MarineCat 1 MarineCat 2 MarineCat 1 MarineCat 2 MarineCat 1/2 MarineMarineg/kWhrg/hphr
Dredge EnginesLoad FactorTier 0 / StdTier 1Tier 2Tier 3/Tier 4iTier 4Tier 1Tier 2Tier 2Tier 3Tier 3Tier 4Marine Tier 3Cat 15.44.0
Hopper Dredge, propulsion0.669.706.904.903.00- - -- - -- - -8.20- - -8.21.35.64.2
Hopper Dredge, auxiliary0.407.506.904.903.000.57.55.368.204.38.21.35.84.3
Hopper Dredge, compressor0.807.506.904.903.000.37.55.368.204.38.21.3
Hopper Dredge, pumps0.807.506.904.903.000.37.55.368.204.38.21.3Marine Tier 3Cat 26.24.6
CSD, cutter0.807.506.904.903.002.67.55.368.204.38.21.37.05.2
CSD, suction pump0.807.506.904.903.002.67.55.368.204.38.21.39.87.3
CSD, submerged pump0.807.506.904.903.002.67.55.368.204.38.21.311.08.2
CSD, inboard pump0.667.506.904.903.002.67.55.368.204.38.21.3
CSD, other pump0.807.506.904.903.002.67.55.368.204.38.21.3Marine Tier 4Cat 1/21.81.3https://dieselnet.com/standards/us/marine.php
CSD, propulsion0.669.706.904.903.00- - -- - -- - -8.204.38.21.3
CSD, auxiliary0.407.506.904.903.000.57.55.368.204.38.21.3Nonroadg/kWhrg/hphr
Clamshell - diesel electric0.439.706.904.903.000.50- - -- - -8.20- - -- - -- - -Nonroad Tier 34.03.0
Clamshell - conventional0.439.706.904.903.002.60- - -- - -8.20- - -- - -- - -
Excavator - diesel hydraulic0.599.706.904.903.002.60- - -- - -8.20- - -- - -- - -Nonroad Tier 4
Excavator - conventional0.599.706.904.903.002.67.55.368.20- - -- - -- - -75 - 750 hpall0.400.30
Dredge auxiliary0.407.506.905.603.500.37.55.365.604.04.61.3> 750 hpgenset0.670.50
Blast barge - compressor0.437.506.905.603.500.37.55.365.604.04.61.3other3.52.6
Blast barge - auxiliary0.407.506.905.603.500.37.55.365.604.04.61.3
Crewboat propulsion0.509.706.905.603.50- - -7.55.368.204.38.21.31.341hp/kWkWhp
Crewboat auxiliary0.407.56.905.603.50- - -7.55.365.604.04.61.32,0002,682
Tender propulsion0.699.706.905.603.50- - -7.55.368.204.38.21.33,7004,962
Tender auxiliary0.407.56.905.603.50- - -7.55.365.604.04.61.3560751
Ocean tow - propulsion0.699.706.905.603.50- - -7.55.368.204.38.21.39001,207
Ocean tow - auxiliry0.407.56.905.603.50- - -7.55.365.604.04.61.3
Other diesel engines0.7511.006.905.603.500.37.55.368.204.38.21.3
Notes:
Source of load factor assumptions is EPA's NONROAD emission estimating model.
Emission factors for Tier 1 and later are derived from certification
standards. As such, they are to be viewed as estimates only.
Tier 1 marine engines are assigned Tier 0 emission factors because
of the difficulty of determining rpm-based emission standard.
Interim Tier 4 (Tier 4i) engines are estimated with the same NOx emissions as Tier 3 because they have reduced PM emissions but not reduced NOx emissions.
This is a conservative simplification that may slightly overestimate emissions
Land-side equipment - Load Factors / Emission Factors
346789
NRNRNRNRNR
Land-side Equipment TypesLoad FactorTier 0Tier 1Tier 2Tier 3/Tier 4iTier 4
Other diesel engines0.599.506.905.603.500.30
Backhoe0.219.506.904.903.000.30
Compactor0.439.506.904.903.000.30
Compressor0.439.506.904.903.000.30
Concrete saw0.599.506.905.603.500.30
Conveyor0.439.506.905.603.500.30
Crane0.439.506.904.903.000.30
Crawler tractor0.599.506.904.903.000.30
Dozer0.599.506.904.903.000.30
Drilling rig0.439.506.904.903.000.30
Excavator0.599.506.904.903.000.30
Forklift0.599.506.904.903.000.30
Generator0.439.506.904.903.000.30
Grader0.599.506.904.903.000.30
Light plants0.439.506.905.603.500.30
Off-road truck0.599.506.904.903.000.30
Pump0.439.506.904.903.000.30
Rubber tired loader0.599.506.904.903.000.30
Screen0.439.506.905.603.500.30
Skid Steer Loader0.219.506.904.903.000.30
Winch0.439.506.905.603.500.30
Emission factor source: EPA emission standards
Note: there are no TIER 3 standards for engines over 750 HP

Dredge Input & Calcs

USACE - New York District
Lake Montauk Harbor
NOx Emissions Calculator
Calendar Year 2025
Non-OEM Emission Control Methods:
NOx Control MethodNOx Control %Non-original equipment emission control devices or methods
Non-OEM-10.0must be addressed in advance on a case-by-case basis.
Non-OEM-20.0Enter control method in column labeled "NOx Control Method" at left.
Non-OEM-30.0Enter approved NOx control percentage under "NOx Control %" at left.
Non-OEM-40.0Report for0Month
None0.02025Year
For vessels that have been repowered under a program to provide emission offsets (such as MVERP) the tier level of the engines that were replaced must be entered.
Hours per EngineEmissions per Engine
Dredge/Engine TypeDredge/Engine NameTier LevelEngine HPLoad FactorEmission FactorNOx Control MethodNOx Control %Prior MonthsThis MonthYear RemainingPrior MonthsThis MonthYear Remaining
Dredge (and related) Engines
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0

Subtotals - Dredges 0.0 0.0 0.0

Engine level pick list
Standard nonroad engineEngines manufactured before 1996.814
Tier 1 nonroad engineEngines manufactured after 1996 (but before Tier 2).826
Tier 2 nonroad engineSee implementation schedule below837
Tier 3 nonroad engineSee implementation schedule below848
Tier 4i nonroad engineSee implementation schedule below858
Tier 4 nonroad engineSee implementation schedule below869
Standard marine engineMarine engines manufactured before 2007874
Tier 2 marine engineMarine engines manufactured in 2007 or later8811
Cat 2 Tier 3 marineCategory 2 marine engines built starting 2013 and certified Tier 38912
Cat 1/2 Tier 4 marineFull marine Tier 4 Cat 1 or 2
Implementation Schedule for Nonroad Engines
Tier 2Tier 3
Horsepower RangeStart YearStart Year
301 - 60020012006
601 - 75020022006
101 - 17520032007
176 - 30020032006
25 - 10020042008
> 7502006
Tier 4 schedule
25 - 742013Tier 4
75 - 1742012Tier 4i2015Tier 4
175 - 7492011Tier 4i2015Tier 4
Load Factors / Emission Factors
NR/MarineNRNRNRNRCat 2 MarineCat 2 MarineCat 1/2 Marine
Dredge EnginesLoad FactorTier 0Tier 1Tier 2Tier 3/Tier 4iTier 4Tier 2Tier 3Tier 4
Hopper Dredge, propulsion0.669.706.904.903.00- - -8.208.201.3
Hopper Dredge, auxiliary0.407.506.904.903.000.508.208.201.3
Hopper Dredge, compressor0.807.506.904.903.000.308.208.201.3
Hopper Dredge, pumps0.807.506.904.903.000.308.208.201.3
CSD, cutter0.807.506.904.903.002.608.208.201.3
CSD, suction pump0.807.506.904.903.002.608.208.201.3
CSD, submerged pump0.807.506.904.903.002.608.208.201.3
CSD, inboard pump0.667.506.904.903.002.608.208.201.3
CSD, other pump0.807.506.904.903.002.608.208.201.3
CSD, propulsion0.669.706.904.903.00- - -8.208.201.3
CSD, auxiliary0.407.506.904.903.000.508.208.201.3
Clamshell - diesel electric0.439.706.904.903.000.508.20- - -- - -
Clamshell - conventional0.439.706.904.903.002.608.20- - -- - -
Excavator - diesel hydraulic0.599.706.904.903.002.608.20- - -- - -
Excavator - conventional0.599.706.904.903.002.608.20- - -- - -
Dredge auxiliary0.407.506.905.603.500.305.604.601.3
Blast barge - compressor0.437.506.905.603.500.305.604.601.3
Blast barge - auxiliary0.407.506.905.603.500.305.604.601.3
Crewboat propulsion0.509.706.905.603.50- - -8.208.21.3
Crewboat auxiliary0.407.506.905.603.50- - -5.604.61.3
Tender propulsion0.699.706.905.603.50- - -8.208.21.3
Tender auxiliary0.407.506.905.603.50- - -5.604.61.3
Ocean tow - propulsion0.699.706.905.603.50- - -8.208.21.3
Ocean tow - auxiliry0.407.506.905.603.50- - -5.604.61.3
Other diesel engines0.7511.006.905.603.500.308.208.21.3
123456789111213

Vessel Input & Calcs

USACE - New York District
Lake Montauk Harbor
NOx Emissions Calculator
Calendar Year 2025
Non-OEM Emission Control Methods:
NOx Control MethodNOx Control %Non-original equipment emission control devices or methods
Non-OEM-10.0must be addressed in advance on a case-by-case basis.
Non-OEM-20.0Enter control method in column labeled "NOx Control Method" at left.
Non-OEM-30.0Enter approved NOx control percentage under "NOx Control %" at left.
Non-OEM-40.0Report for0Month
None0.02025Year
For vessels that have been repowered under a program to provide emission offsets (such as MVERP) the tier level of the engines that were replaced must be entered.
Hours per EngineEmissions per Engine
Support Vessel/Engine TypeSupport Vessel/Engine NameTier LevelEngine HPLoad FactorEmission FactorNOx Control MethodNOx Control %Prior MonthsThis MonthYear RemainingPrior MonthsThis MonthYear Remaining
Vessel (and related) Engines
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0
0.000.00None0.00.00.00.0

Subtotals - Vessels 0.0 0.0 0.0

Engine level pick list
Standard nonroad engineEngines manufactured before 1996.
Tier 1 nonroad engineEngines manufactured after 1996 (but before TIER 2).
Tier 2 nonroad engineSee implementation schedule below
Tier 3 nonroad engineSee implementation schedule below6
Standard marine engineMarine engines manufactured before 20074
Cat 1 Tier 1 marineCategory 1 marine engines (less than 5 liters per cylinder) that are not Tier 27
Cat 1 Tier 2 marineEngines known to be Tier 2, Category 1 engines (less than 5 liters per cylinder)8
Cat 2 Tier 2 marineCategory 2 marine engines manufactured in 2007 or later9
Cat 2 Tier 3 marineCategory 2 marine engines built starting 2013 and certified Tier 310
Cat 1/2 Tier 4 marineFull marine Tier 4 Cat 1 or 2
Implementation Schedule for Nonroad Engines
Tier 2Tier 3
Horsepower RangeStart YearStart Year
301 - 60020012006
601 - 75020022006
101 - 17520032007
176 - 30020032006
25 - 10020042008
> 7502006
NRCat 1/2 MarineCat 1 MarineCat 2 MarineCat 1 MarineCat 2 MarineCat 1/2 Marine
Tier 4Tier 1Tier 2Tier 2Tier 3Tier 3Tier 4
Load Factors / Emission Factors4567891112
Marine 0/1NRCat 1 MarineCat 1 MarineCat 2 MarineCat 2 MarineCat 1/2 Marine
Dredge EnginesLoad FactorNR Tier 0Tier 3/Tier 4iTier 1Tier 2Tier 2Tier 3Tier 4
Hopper Dredge, propulsion0.669.703.00- - -- - -8.20
Hopper Dredge, auxiliary0.407.503.007.505.368.20
Hopper Dredge, compressor0.807.503.007.505.368.20
Hopper Dredge, pumps0.807.503.007.505.368.20
Clamshell - diesel electric0.439.703.00- - -- - -8.20
Clamshell - conventional0.439.703.00- - -- - -8.20
Excavator - diesel hydraulic0.599.703.00- - -- - -8.20
Excavator - conventional0.599.703.007.505.368.20
Dredge auxiliary0.407.503.507.505.365.60
Blast barge - compressor0.437.503.507.505.365.60
Blast barge - auxiliary0.407.503.507.505.365.60
Crewboat propulsion0.509.703.507.505.368.208.201.3Crewboat propulsion
Crewboat auxiliary0.407.503.507.505.365.604.601.3Crewboat auxiliary
Tender propulsion0.699.703.507.505.368.208.201.3Tender propulsion
Tender auxiliary0.407.503.507.505.365.604.601.3Tender auxiliary
Ocean tow - propulsion0.699.703.507.505.368.208.201.3Ocean tow - propulsion
Ocean tow - auxiliry0.407.503.507.505.365.604.601.3Ocean tow - auxiliry
Other diesel engines0.7511.003.507.505.368.208.201.3Other diesel engines
123467891112

Landside Input & Calcs

USACE - New York District
Lake Montauk Harbor
NOx Emissions Calculator
Calendar Year 2025
Report for0Month
2025Year
Hours per EngineEmissions per Engine (tons)
Land-based Equipment/Engine Type (pick from pull-down list)Land-based Equipment NameTier Level (pick from pull-down list)Engine HPLoad FactorEmission Factor (g/HP-hr)NOx Control MethodNOx Control %Prior MonthsThis MonthYear RemainingPrior MonthsThis MonthYear Remaining
Equipment
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00
0.000.00None0.00.000.000.00

Subtotals - Non-Road 0.0 0.0 0.0

Engine level pick list
Standard nonroad engineEngines manufactured before 1996.4
Tier 1 nonroad engineEngines manufactured after 1996 (but before Tier 2).6
Tier 2 nonroad engineSee implementation on "Instructions" sheet7
Tier 3/Tier 4i nonroad engineSee implementation on "Instructions" sheet8
Tier 4 nonroad engineSee implementation on "Instructions" sheet9
Emission control pick list (note)Percent Reduced
NOx Control Method(Manually enter control efficiency - e.g., enter 90 for 90% reduction
Non-OEM-10.0
Non-OEM-20.0
Non-OEM-30.0
Non-OEM-40.0
None0.0
Non-original equipment emission control devices or methods must be addressed in advance on a case-by-case basis.
Enter control method in column labeled "NOx Control Method" at left.
Enter approved NOx control percentage under "NOx Control %" at left.
Load Factors / Emission Factors346789
NRNRNRNRNR
Land-side Equipment TypesLoad FactorTier 0Tier 1Tier 2Tier 3/Tier 4iTier 4
Other diesel engines0.599.506.905.603.500.30
Backhoe0.219.506.904.903.000.30
Compactor0.439.506.904.903.000.30
Compressor0.439.506.904.903.000.30
Concrete saw0.599.506.905.603.500.30
Conveyor0.439.506.905.603.500.30
Crane0.439.506.904.903.000.30
Crawler tractor0.599.506.904.903.000.30
Dozer0.599.506.904.903.000.30
Drilling rig0.439.506.904.903.000.30
Excavator0.599.506.904.903.000.30
Forklift0.599.506.904.903.000.30
Generator0.439.506.904.903.000.30
Grader0.599.506.904.903.000.30
Light plants0.439.506.905.603.500.30
Off-road truck0.599.506.904.903.000.30
Pump0.439.506.904.903.000.30
Rubber tired loader0.599.506.904.903.000.30
Screen0.439.506.905.603.500.30
Skid Steer Loader0.219.506.904.903.000.30
Winch0.439.506.905.603.500.30
Emission factor source: EPA emission standards
Note: there are no TIER 3 standards for engines over 750 HP

Emission Summary

USACE - New York District
Lake Montauk Harbor
NOx Emissions Calculator
Calendar Year 2025
Report for
Month
2025Year
CurrentYearYearProjection
Monthto DateRemainingfor Year
Calculator Totals0.00.00.00.0

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File details come from the government source that posted it. Updated .