Addendum No. 2: Stormwater Maintenance Equipment Rebid

BOROUGH OF SEASIDE PARK
OCEAN COUNTY, NEW JERSEY
OUR FILE: 1528-U-088
NJIB CLEAN WATER APPLICATION STORMWATER MAINTENANCE
EQUIPMENT REBID
ADDENDUM #2
April 15, 2026
The following additions to the Contract Documents will be written into any Contract for the
"NJIB CLEAN WATER APPLICATION STORMWATER MAINTENANCE
EQUIPMENT REBID" project and must be taken into account in rendering a Proposal for the
work.
The following items shall be revised as follows at this time:
1. The Bid Opening Date shall be changed to from April 16, 2026 to April 28th, 2026 at
1:00 PM. Said Bids will be received, opened and read aloud in public at the
Borough Of Seaside Park, 1701 N OCEAN AVE, SEASIDE PARK 08752 on April
28, 2026 At 1:00 P.M.
2. Section 11500 "11500 - Towable Emergency Diesel Generator and Enclosure Rev
4_9_26" of the technical specifications has been revised. The revised Section 11500
"11500 - Towable Emergency Diesel Generator and Enclosure Rev 4_9_26" can be
found attached to this addendum.
All specifications and bids shall be revised accordingly.
Please complete the "Acknowledgement of Receipt of Addenda" (Page P-3), attached
hereto, for receipt of this Addendum letter and include with bid documents submission.
The Acknowledgement of receipt of addenda page is a mandatory required document and
failure to submit shall be deemed a fatal defect.
Alan B. Dittenhofer, PE, PP, CME
NJ PE License #37672
SEAL
1528U088 Addendum #2_Rebid PAGE 1

SECTION 11500
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE REVISED 4/9/26
PART 1 - GENERAL
1.01 SCOPE
A. Provide complete factory assembled portable generator set equipment with digital electronic
generator set controls, digital governor, and digital voltage regulator.
B. Provide factory test, startup by a supplier authorized by the equipment manufacturer and on-site
testing of the system.
C. The generator set manufacturer shall warrant all equipment provided under this section, whether
or not it is manufactured by the generator set manufacturer, so that there is one source for
warranty and product service.
D. Technicians specifically trained and certified by the manufacturer to support the product and
employed by the generator set supplier shall service the generator sets.
1.02 Codes and Standards
A. The generator set installation and on-site testing shall conform to the requirements of the
following codes and standards, as applicable. The generator set shall include necessary features
to meet the requirements of these standards.
1. 40 CFR 89, Nonroad (Mobile Off Highway)
2.IEEE446 - Recommended Practice for Emergency and Standby Power Systems for Commercial
and Industrial Applications
3.NFPA37 -
4.NFPA70 - National Electrical Code. Equipment shall be suitable for use in systems in
compliance to Article 700, 701, and 702.
5.NFPA99 - Essential Electrical Systems for Health Care Facilities
6.NFPA110 - Emergency and Standby Power Systems. The generator set shall meet all
requirements for Level 1 systems. Level 1prototype tests required by this standard shall have
been performed on a complete and functional unit, component level type tests will not substitute
for this requirement.
B. The generator set and supplied accessories shall meet the requirements of the following standards:
1. NEMA MG1-1998 part 32. Alternator shall comply with the requirements of this standard.
2. UL142 - Sub-base Tanks
3. UL1236 - Battery Chargers
4. UL2200. The generator set shall be listed to UL2200 or submit to an independent third party
certification process to verify compliance as installed..
C. The control system for the generator set shall comply with the following requirements.
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 1

1. CSA C22.2, No. 14 - M91 Industrial Control Equipment.
2. EN50082-2, Electromagnetic Compatibility - Generic Immunity Requirements, Part 2: Industrial.
3. EN55011, Limits and Methods of Measurement of Radio Interference Characteristics of
Industrial, Scientific and Medical Equipment.
4. FCC Part 15, Subpart B.
5. IEC8528 part 4. Control Systems for Generator Sets
6. IEC Std 801.2, 801.3, and 801.5 for susceptibility, conducted, and radiated electromagnetic
emissions.
7. UL508. The entire control system of the generator set shall be UL508 listed and labeled.
8. UL1236 -Battery Chargers.
D. The generator set manufacturer shall be certified to ISO 9001 International Quality Standard and
shall have third party certification verifying quality assurance in design/development, production,
installation, and service, in accordance with ISO 9001.
1.03 Acceptable Manufacturers
All generator manufacturers will be considered however the proposed generator must comply
with the specification in its entirety. The equipment must be BABA (Build America, Buy
America) compliant. Federal infrastructure investments obligated on or after May 14, 2022, must
comply with the Build America, Buy America (BABA) Act, which requires the use of domestic
iron and steel, manufactured products, and construction materials in covered infrastructure
projects. Products that qualify for a de minimis waiver cumulatively may comprise no more than
a total of five percent of the total project cost, otherwise a project specific SRF Waiver must be
obtained.
PART 2 - MATERIALS
2.01 Generator set: Trailer mounted diesel generator with on-board fuel tank:
Voltage: 3 - position switch
* Three Phase, Switchable: 120/208, 277/480
* Single Phase, Switchable: 120/240
Frequency Capability:60 Hertz
A. Ratings
1. The generator set shall operate at 1800 rpm and with multi-voltage field selection option.
2. The generator set shall be rated, based on site conditions of: Altitude 499
ft. ambient temperatures up to 40 degrees C.
3. The generator set rating shall be based on emergency/standby service at 150 degreesC Rise.
A. Performance
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 2

1. Voltage regulation shall be plus or minus 0.5 percent for any constant load between no load and
rated load. Random voltage variation with any steady load from no load to full load shall not
exceed plus or minus 0.5 percent.
2. Frequency regulation shall be isochronous from steady state no load to steady state rated load.
Random frequency variation with any steady load from no load to full load shall not exceed plus
or minus 0.5%.
3. The diesel engine-generator set shall accept a single step load of 100% nameplate kW and power
factor, less applicable derating factors, with the engine-generator set at operating temperature.
4. The alternator shall produce a clean AC voltage waveform, with not more than 5% total harmonic
distortion at full linear load, when measured from line to neutral, and with not more than 3% in
any single harmonic, and no 3rd order harmonics or their multiples. Telephone influence factor
shall be less than 50 per Nema MG1-22.43.
5. The generator set shall be certified by the engine manufacturer to be suitable for use at the installed
location and rating, and shall meet all applicable exhaust emission requirements at the time of
commissioning.
B. Construction
1. The engine-generator set shall be mounted on a heavy-duty steel base to maintain alignment
between components. The base shall incorporate a battery tray with hold-down clamps within the
rails.
2. All switches, lamps, and meters in the control system shall be oil-tight and dust-tight. All active
control components shall be installed within a UL/NEMA 3R enclosure. There shall be no
exposed points in the control (with the door open) that operate in excess of 50 volts.
C. Connections
1. The generator set load connections shall be supplied with Camlock Connection.
2. Power connections to auxiliary devices shall be made at the devices, with required protection
located at a wall-mounted common distribution panel.
3. Generator set control interfaces to other system components shall be made on a permanently
labeled terminal block assembly. Labels describing connection point functions shall be provided.
2.02 Engine and Engine Equipment
The engine shall be electronic direct injection 4-cycle liquid cooled diesel engine. The engine
shall be turbo charged and have a turbo after cooler. A. the Diesel Engine must EPA Tier level 4
compliant. Minimum displacement shall be based on rating/engine size, 74 HP 2.9L. Engine
accessories and features shall include:
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 3

A. An electronic governor system shall provide automatic isochronous frequency regulation. The
governing system dynamic capabilities shall be controlled as a function of engine coolant
temperature to provide fast, stable operation at varying engine operating temperature conditions.
The control system shall actively control the fuel rate and excitation as appropriate to the state of
the generator set. Fuel rate shall be regulated as a function of starting, accelerating to start
disconnect speed, accelerating to rated speed. The governing system shall include a
programmable warm up at idle and cool down at idle function. While operating in idle state, the
control system shall disable the alternator excitation system.
B. Compliance and certifications: 110% Fluid containment required, USA DOT Compliant system,
CSA listed, Transport Canada Compliant, and the Diesel Engine must EPA Tier level 4
compliant.
C. Electric starter(s) capable of three complete cranking cycles without overheating.
D. Positive displacement, mechanical, full pressure, lubrication oil pump.
E. Full flow lubrication oil filters with replaceable spin-on canister elements and dipstick oil level
indicator.
F. An engine driven, mechanical, positive displacement fuel pump. Fuel filter with replaceable
spin-on canister element. Fuel cooler, suitable for operation of the generator set at full rated load
in the ambient temperature specified shall be provided if required for operation due to the design
of the engine and the installation.
G. Provide a 120 volt block heater accordance with the manufacture's recommendation to prevent
humidity and corrosion damage of the electrical and mechanical components.
H. Replaceable dry element air cleaner with restriction indicator.
I. Flexible supply and return fuel lines. Unit will draw and return fuel from the sub-based fuel tank
located below the generator skid frame. Fuel supply and return lines provided and installed by
installing mechanical contractor must limit the fuel restriction of the return fuel line 5.9Hg
maximum with a maximum fuel flow capable of 14.1gph.
J. Engine mounted battery charging alternator, per manufactures requirements.
K. Coolant heater
1. Engine mounted, thermostatically controlled, coolant heater(s) for each engine. Heater
voltage shall be as shown on the project drawings. The coolant heater shall be UL499
listed and labeled.
2. The coolant heater shall be installed on the engine with silicone hose connections.
Connections into the engine coolant system shall be per manufacturers recommendation.
The coolant heater installation shall be specifically designed to provide proper venting of
the system. The coolant heaters shall provisions to isolate the heater for replacement of
the heater element without draining the coolant from the generator
set. The quick disconnect/automatic sealing couplers shall allow the heater
element to be replaced without draining the engine cooling system or significant coolant
loss.
3. The coolant heater shall be provided with a DC thermostat, installed at the engine
thermostat housing. An AC power connection box shall be provided for a single AC
power connection to the coolant heater system. : The unit shall include one (1) 12 VDC
to 110VAC volt single-phase inverter, 1750 watts, mounted inside enclosure, dual
continuous duty 10-amp GFI outlets, one (1) fusible link.
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 4

4. The coolant heater(s) shall be sized as recommended by the engine manufacturer to warm
the engine to a minimum of 104F (40C) in a 40F (4C) ambient, in compliance with
NFPA110 requirements, or the temperature required for starting and load pickup
requirements of this specification.
L. Provide vibration isolators, spring/pad type, quantity as recommended by the generator set
manufacturer. Isolators shall include seismic restraints if required by site location.
M. Starting and Control Batteries shall be calcium/lead antimony type, 12 volt DC, sized as
recommended by the engine manufacturer but not less than 450 cold cranking amps at 18 degreesC each
with a reserve capacity of 100 amps (minimum), complete with battery cables, 120 watt heater,
battery box and connectors. The batteries shall be capable of a minimum of two complete 15-
second cranking cycles at 40F ambient temperature when fully charged.
N. Provide exhaust silencer for each engine of size and type as recommended by the generator set
manufacturer and approved by the engine manufacturer. The mufflers shall be critical grade.
Exhaust system shall be installed according to the engine manufacturer's recommendations and
applicable codes and standards. All exposed exterior exhaust systems shall be stainless steel to
prevent corrosion.
O. A UL listed/CSA certified 10 amp @ 12 volt Four-Stage fully automatic battery charger shall be
provided with the engine-generator set. The charger may be wall mounted, at the discretion of the
installer. Input AC voltage and 20 amp DC output breaker shall be provided. Chargers shall be
equipped with float, taper and equalize charge settings. No operational motintors.
P. Charger shall include an LED DC voltmeter and ammeter, 12 hour equalize charge timer, and AC
and DC fuses.
2.03 AC Generator
A. The AC generator shall be; synchronous, four pole, 2/3 pitch, revolving field, drip-proof
construction, single prelubricated sealed bearing, air cooled by a direct drive centrifugal blower
fan, and directly connected to the engine with flexible drive disc. All insulation system
components shall meet NEMA MG1 temperature limits for Class H insulation system and shall
be UL1446 listed. Actual temperature rise measured by resistance method at full load shall not
exceed 80 degrees Centigrade.
B. The generator shall be capable of delivering rated output (kVA) at rated frequency and power
factor, at any voltage not more than 5 percent above or below rated voltage.
C. A permanent magnet generator (PMG) shall be included to provide a reliable source of excitation
power for optimum motor starting and short circuit performance. The PMG and controls shall be
capable of sustaining and regulating current supplied to a single phase or three phase fault at
approximately 300% of rated current for not more than 10 seconds.
D. The subtransient reactance of the alternator shall not exceed 12 percent, based on the standby
rating of the generator set.
2.04 Generator set Control. The generator set shall be provided with a microprocessor-based control
system that is designed to provide automatic starting, monitoring, and control functions for the
generator set. The control system shall also be designed to allow local monitoring and control of
the generator set, and remote monitoring and control as described in this specification.
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 5

The control shall be mounted on the generator set, or may be mounted in a free-standing panel
next to the generator set if adequate space and accessibility is available. The control shall be
vibration isolated and prototype tested to verify the durability of all components in the system
under the vibration conditions encountered.
The generator set mounted control shall include the following features and functions:
A. Control Switches
1. Mode Select Switch. The mode select switch shall initiate the following
control modes. When in the RUN or MANUAL position the generator set shall
start, and accelerate to rated speed and voltage as directed by the operator. A
separate push-button to initiate starting is acceptable. In the OFF position the
generator set shall immediately stop, bypassing all time delays. In the AUTO
position the generator set shall be ready to accept a signal from a remote device
to start and accelerate to rated speed and voltage.
2. EMERGENCY STOP switch. Switch shall be Red "mushroom-head"
push-button. Depressing the emergency stop switch shall cause the generator set
to immediately shut down, and be locked out from automatic restarting.
3. RESET switch. The RESET switch shall be used to clear a fault and allow
restarting the generator set after it has shut down for any fault condition.
4. PANEL LAMP switch. Depressing the panel lamp switch shall cause the entire
panel to be lighted with DC control power. The panel lamps shall automatically
be switched off 10 minutes after the switch is depressed, or after the switch is
depressed a second time.
B. Generator Set AC Output Metering. The generator set shall be provided with a metering
set including the following features and functions:
1. Digital metering set, 1% accuracy, to indicate generator RMS voltage and
current, frequency, output current, output KW, KW-hours, and power factor.
Generator output voltage shall be available in line-to-line and line-to-neutral
voltages, and shall display all three-phase voltages (line to neutral or line to line)
simultaneously.
2. The control system shall monitor the total load on the generator set, and maintain
data logs of total operating hours at specific load levels ranging from 0 to 110%
of rated load, in 10% increments. The control shall display hours of operation at
less than 30% load and total hours of operation at more than 90% of rated load.
3. The control system shall log total number of operating hours, total kWH, and
total control on hours, as well as total values since reset.
C. Generator Set Alarm and Status Display.
1. The generator set control shall indicate the existence of the warning and
shutdown conditions on the control panel. All conditions indicated below for
warning shall be field-configurable for shutdown. Conditions required to be
annunciated shall include:
low oil pressure (warning)
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 6

low oil pressure (shutdown)
oil pressure sender failure (warning)
low coolant temperature (warning)
high coolant temperature (warning)
high coolant temperature (shutdown)
high oil temperature (warning)
engine temperature sender failure (warning)
low coolant level (warning)
fail to crank (shutdown)
fail to start/overcrank (shutdown)
overspeed (shutdown)
low DC voltage (warning)
high DC voltage (warning)
weak battery (warning)
low fuel-daytank (warning)
high AC voltage (shutdown)
low AC voltage (shutdown)
under frequency (shutdown)
over current (warning)
over current (shutdown)
short circuit (shutdown)
over load (warning)
emergency stop (shutdown)
(4) configurable conditions
2. Provisions shall be made for indication of four customer-specified alarm or
shutdown conditions. Labeling of the customer-specified alarm or shutdown
conditions shall be of the same type and quality as the above-specified
conditions. The non-automatic indicating lamp shall be red, and shall flash to
indicate that the generator set is not able to automatically respond to a command
to start from a remote location.
D. Engine Status Monitoring.
1. The following information shall be available from a digital status panel on the
generator set control :
engine oil pressure (psi or kPA)
engine coolant temperature (degrees F or C)
engine oil temperature (degrees F or C)
engine speed (rpm)
number of hours of operation (hours)
number of start attempts
battery voltage (DC volts)
2. The control system shall also incorporate a data logging and display provision to
allow logging of the last 10 warning or shutdown indications on the generator set,
as well as total time of operation at various loads, as a percent of the standby
rating of the generator set.
E. Engine Control Functions.
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 7

1. The control system provided shall include a cycle cranking system, which allows
for rest time, and # of cycles. Initial settings shall be
f or 3 cranking periods of 15 seconds each, with 15-second rest period between
cranking periods.
2. The control system shall include an idle mode control, which allows the engine to
run in idle mode in the RUN position only. In this mode, the alternator excitation
system shall be disabled.
3. The control system shall include an engine governor control, which functions to
provide steady state frequency regulation as noted elsewhere in this specification.
The governor control shall include adjustments for gain, damping, and a ramping
function to control engine speed and limit exhaust smoke while the unit is
starting.
3. The control system shall include time delay start (adjustable 0-300 seconds) and
time delay stop (adjustable 0-600 seconds) functions.
F. Alternator Control Functions:
1. The generator set shall include a full wave rectified automatic digital voltage
regulation system that is matched and prototype tested by the engine
manufacturer with the governing system provided. It shall be immune from
misoperation due to load-induced voltage waveform distortion and provide a
pulse width modulated output to the alternator exciter. The voltage regulation
system shall be equipped with three-phase line to neutral RMS sensing and shall
control buildup of AC generator voltage to provide a linear rise and limit
overshoot. The system shall include a torque-matching characteristic, which
shall reduce output voltage in proportion to frequency below an adjustable
frequency threshold. Torque matching characteristic shall be adjustable for roll-
off frequency and rate, and be capable of being curve-matched to the engine
torque curve with adjustments in the field. The voltage regulator shall include
adjustments for gain, damping, and frequency roll-off. Adjustments shall be
broad range, and made via digital raise-lower switches, with an alphanumeric
LED readout to indicate setting level. Rotary potentiometers for system
adjustments are not acceptable.
2. Controls shall be provided to monitor the output current of the generator set and
initiate an alarm (over current warning) when load current exceeds 110% of the
rated current of the generator set on any phase for more than 60 seconds. The
controls shall shut down and lock out the generator set when output current level
approaches the thermal damage point of the alternator (over current shutdown).
The protective functions provided shall be in compliance to the requirements of
NFPA70 article 445.
3. Controls shall be provided to individually monitor all three phases of the output
current for short circuit conditions. The control/protection system shall monitor
the current level and voltage. The controls shall shut down and lock out the
generator set when output current level approaches the thermal damage point of
the alternator (short circuit shutdown). The protective functions provided shall be
in compliance to the requirements of NFPA70 article 445.
4. Controls shall be provided to monitor the KW load on the generator set, and
initiate an alarm condition (over load) when total load on the generator set
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 8

exceeds the generator set rating for in excess of 5 seconds. Controls shall
include a load shed control, to operate a set of dry contacts (for use in shedding
customer load devices) when the generator set is overloaded.
5. An AC over/under voltage monitoring system that responds only to true RMS
voltage conditions shall be provided. The system shall initiate shutdown of the
generator set when alternator output voltage exceeds 110% of the operator-set
voltage level for more than 10 seconds, or with no intentional delay when voltage
exceeds 130%. Under voltage shutdown shall occur when the output voltage of
the alternator is less than 85% for more than 10 seconds.
G. Other Control Functions
1. The generator set shall be provided with a network communication module to
allow remote communication through a PC for communication with the generator
set control by remote devices.
2. A battery monitoring system shall be provided which initiates alarms. During
engine cranking (starter engaged), the low voltage limit shall be disabled, and DC
voltage shall be monitored as load is applied to the battery, to detect impending
battery failure or deteriorated battery condition.
H. Control Interfaces for Remote Monitoring:
1. The control system shall provide four programmable output relays. These relay
outputs shall be configurable for any alarm, shutdown, or status condition
monitored by the control. The relays shall be configured to indicate: (1)
generator set operating at rated voltage and frequency, (2) common warning, (3)
common shutdown, (4) load shed command.
2. A fused 10 amp switched 12VDC power supply circuit shall be provided for
customer use. DC power shall be available from this circuit whenever the
generator set is running.
3. A fused 10 amp 12VDC power supply circuit shall be provided for customer use.
DC power shall be available from this circuit at all times from the engine
starting/control batteries.
2.05 Other equipment to be provided with the generator set
A. The generator set shall be provided with a mounted main line circuit breaker, sized to
carry the rated output current of the generator set. The circuit breaker shall incorporate
an electronic trip unit that operates to protect the alternator under all overcurrent
conditions, or a thermal-magnetic trip with other overcurrent protection devices that
positively protect the alternator under overcurrent conditions. The supplier shall submit
time overcurrent characteristic curves and thermal damage curve for the alternator,
demonstrating the effectiveness of the protection provided.
B. Outdoor Weather-Protective Sound Attenuated Enclosure
1. The generator set shall be provided with an outdoor, weather tight, critical sound
attenuating enclosure, with the entire package listed under UL2200. The package
shall comply with the requirements of the National Electrical Code for all wiring
materials and component spacing. The total assembly of generator set, enclosure,
and sub-base fuel tank shall be designed to be lifted into place using spreader bars.
TOWABLE EMERGENCY DIESEL GENERATOR AND ENCLOSURE 11500 - 9