RFP 5.pdf

APPENDIX EE

Aqua Engineers Sewer Requirements

Aqua Engineers Collection System Design and Construction Protocol (modified)

Schofield Barracks/Oahu Wastewater System - New Connection Application Form

Aqua Engineers Grease Trap Permit Application

Aqua Engineers Oil/Water Separator Permit Application

Aqua Engineers Abandonment Application Form

Section: Appendix EE Aqua Engineers Sewer Requirements W9128A-10-R-0003 Page EE-1

Aqua Engineers Collection System Design and Construction Protocol (POH modified) (July 2009)

SECTION 1 AS-BUILT DRAWINGS

SECTION 2 MANHOLE INSERTS

SECTION 3 BIOBARRIER REQUIREMENTS

SECTION 4 WASTEWATER SYSTEM ABANDONMENT

SECTION 5 AQUA ENGINEERS PERMIT APPLICATION

SECTION 6 SEWER LINE CLEANING

6.1 Description / Requirements

SECTION 7 INFILTRATION-EXFILTRATION TESTS

7.1 Description

7.2 Low Pressure Air Testing Requirements

7.3 Water Exfiltration Test Requirements

SECTION 8 CCTV INSPECTION

8.1 Description / Requirements

SECTION 9 MANDREL TESTS FOR PVC PIPE

9.1 Description / Requirements

SECTION 10 TESTING OF MANHOLES

10.1 Description

10.2 Vacuum Testing

10.3 Hydrostatic Testing

APPENDICES

Appendix A Pump Station Design Standards

Appendix B

Pump Station SCADA Specifications

Appendix C AQUA ENGINEERS Schofield Bks PRETREATMENT CODE

Appendix D

Schofield Barracks New Connection Application Form Grease Trap Permit Application

Oil/Water Separator Permit Application Aqua Engineers Abandonment Application Form

Section: Appendix EE Aqua Engineers Sewer Requirements

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Aqua Engineers Collection System Design and Construction Protocol

1. AS-BUILT DRAWINGS: Submit as-built drawings identifying all sewer lines abandoned-in-place in this project as indicated in section 4 below.

2 MANHOLE INSERTS:

2.1 Manhole Inserts: Manholes in paved areas (and unpaved areas subject to ponding) shall have a manhole insert fully seated around the manhole frame rim to prevent water from infiltrating between the cover and the manhole frame rim.

(Manhole frame shall be cleaned of all dirt and debris prior to placing the manhole insert on the rim.)

2.2 Manhole Inserts (similar to “No Flow Inflow Dish” or approved equal) shall be made of high density polyethylene copolymer material that meets ASTM specification designation D1248, Class A, Category 5, Type 111 (the insert shall have a minimum impact brittleness temperature of -180 deg F). The thickness shall be uniform 3mm or greater. The insert shall be manufactured to the dimensions as shown on the contract drawings to allow easy installation within the manhole frame. A lift strap shall be attached to the rising edge of the bowl of the insert. The lift strap shall be made of 1” width woven polypropylene web and shall be seared on all cut ends to prevent unraveling. The lift strap shall be attached to the insert by means of a stainless steel rivet. Location of the lift strap shall be such as to provide easy visual location. Ventilation of the Insert shall be via a vent hole located on the side wall of the dish 19mm below the lip. The hole thus placed allows a maximum release of 38 liters per 24 hours and is not affected by debris that might collect at the bottom of the dish.

3 BIOBARRIER REQUIREMENTS: Joint installation shall comply with the manufacturer’s instructions. “Biobarrier” (herbicide impregnated geotextile fabric) or approved equal root barrier shall be wrapped around all joints of new sewer pipes and appurtenances within the spread (branches and leaves) of existing trees and 6m (20 ft) from center of newly planted trees. The root deterrent material shall extend a minimum of 230mm (9”) on either side of the joint.

Overlap of material shall be 100mm (4”) minimum. Method of fastening material to the pipe shall be with plastic ties or as recommended by the manufacturer and subject to the approval of the Contracting Officer.

Section: Appendix EE Aqua Engineers Sewer Requirements

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4 WASTEWATER SYSTEM ABANDONMENT:

4.1 Sewer manholes (SMH) and sewer lines located under proposed buildings shall be completely removed.

4.2 Sewer manholes (SMH) and sewer lines not required to be demolished and removed to facilitate construction of new work (i.e. not located under any walls, bldgs or other structures, etc.), may be abandoned-in-place, provided the abandonment procedures below are followed.

4.2.1 Schofield Barracks Wastewater System--In-place Abandonment Procedures

• All projects that involve abandonment of the existing collection system shall require submittal of the associated permit. The Contractor shall submit the permit to Aqua Engineers prior to construction.

• Abandonment may not begin until the Contractor has received written approval of the submitted permit application. Aqua Engineers shall review and provide the Contractor a written response to the permit application within fourteen (14) calendar days after receipt of the application.

• Prior to abandonment, sewer lines and manholes shall be cleaned of all waste debris to prevent hazardous gas buildup. Sewer cleaning procedures will be performed per Section 6.1.

• Abandoned sewer lines shall be plugged with concrete into each end for a length of 1.5 times the diameter of the pipe into the abandoned line with concrete bulkhead protruding a minimum of 12” from the end of the pipe.

The bulkhead will be sized to provide a minimum of 6” extension beyond the diameter of the pipe. (See attached sketch). Soil encasing of the bulkhead shall be compacted to 90% of laboratory maximum density.

• Sewer lines greater than 18” in diameter shall be filled entirely with concrete.

• Abandoned PVC pipe shall be capped with a glued in place PVC end cap.

• Laterals should also be abandoned using the PVC pipe abandonment procedures above.

• Frame and covers of manholes shall be removed and returned to Aqua

Engineers, Inc. (Phone Number: 621-3098). Cone section of manholes (or top 1 m of cast-in-place manholes and other structures) shall be completely removed. Break bottom of manholes to permit subsurface drainage through the bottom. Remaining portion of manhole interior shall be backfilled with compacted granular material, such as base course or S4C. Compaction shall be to 95% of max density.

• As-built drawings of the demolition plan shall identify all abandoned in place sewer lines, manholes and other structures. Topo survey shall reflect these abandoned lines by changing the level to the abandoned utility line level per AECC CADD Standards.

Section: Appendix EE Aqua Engineers Sewer Requirements

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SECTION 5: AQUA ENGINEERS PERMIT APPLICATION

5.1 DESCRIPTION / REQUIREMENTS

All projects that involve a new connection to the existing collection system, or construction of grease traps, or oil/water separators shall require submittal of the associated permit. Discharge from oil/water separators shall be in accordance with applicable portions of Appendix C: Aqua Engineers Schofield Barracks Wastewater Treatment Plant Pretreatment Code. The Contractor shall submit the permit to Aqua Engineers prior to construction. Construction may not begin until the Contractor has received written approval of the submitted permit application. Aqua Engineers shall review and provide the Contractor a written response to the permit application within fourteen (14) calendar days after receipt of the application.

The following permit applications are included in this section:

• Schofield Barracks/Oahu Wastewater System - New Connection Application Form

• Aqua Engineers Grease Trap Permit Application

• Aqua Engineers Oil/Water Separator Permit Application

Each permit submittal shall consist of a minimum of 2 hard copies.

Permit submittals for Schofield Barracks, East Range and Wheeler Army Airfield shall be sent to:

Aqua Engineers, Inc.

Schofield Office P.O. Box 861561 Wahiawa, HI 96786

Or hand delivered to:

Wheeler Army Airfield Building 345 Airdrome Road Wahiawa, HI 96786

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SECTION 6

SEWER LINE CLEANING

6.1 DESCRIPTION / REQUIREMENTS

Prior to acceptance by Aqua Engineers, Inc. of any sanitary sewer line, the Contractor shall clean all pipe by flushing each line with clean water. Debris traps shall be placed in the downstream manholes of all sections of line being cleaned. Any stoppages, dirt, or foreign matter shall be removed from the lines and /or manholes. Any dirt, debris or foreign material shall be flushed out of the lines and removed. All cleaning and/or testing of any sewer line, sanitary or storm, shall take place after the completion of all the work (backfilling, compacting, etc.) and after subgrade is made but prior to final paving and concrete work.

The attached Line Cleaning Record Form shall be completed and submitted to the Collection System Superintendent as a requirement of acceptance.

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Coded By: ______ Date: _____/_____/_____ MAIN SEWER MAINTENANCE DATA Entered By: ______ Date: _____/_____/_____

Operation Time Debris

Structure Identifier Type of

Equipment/Operation H:MM H:MM Type Condition & Severity

U/S D/S 1 2 1 2 1 2 Overall Severity Pounds C/S C/S

Reason for

Maint.

Special

Conditions Line

Length Pipe Size Hot Spot Flow

Initials of Crew: ______ ______ ______

Initials of Crew: ______ ______ ______

U/S Identifier D/S Identifier Special Conditions

Type of Equipment/Operation Debris Type Debris Severity Sewer Condition Sewer Severity Reason for Maintenance Special Conditions 0=None or N/A 1=Power Rodder 2=Chain Flail/Root Saw

3=TV

4=Flush 5=Visual 6=Root Control 7=Other

A=HVC

B=Hand Rodder

0 = Clear or N/A 1 = Egg Shells or Grounds 2 = Grease or Soap 3 = Paper or Rags 4 = Grit (Sand, Gravel, Etc.)

5 = Foreign Object 6 = Roots 7 = Mud 8 = Solids 9 = Other

0 = Clear 1 = Mild 2 = Medium 3 = Severe 4 = Stoppage

0 = No Problem or N/A 1 = Broken Pipe 2 = Offset Joints 3 = Infiltration 4 = Roots 5 = Sagging Pipe 6 = Other

0 = N/A 1 = Minor 2 = Moderate 3 = Severe

0 = Routine/Scheduled 1 = Outside Service Request 2 = In-House Service Request 3 = Outside Service Request – Agency 4 = Outside Service Request – Owners 5 = Vandalism 6 = Marked for USA

0 = None 1 = Write Below

Section: Appendix EE Aqua Engineers Sewer Requirements

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SECTION 7

INFILTRATION-EXFILTRATION TESTS

7.1 DESCRIPTION

Prior to the acceptance of any sanitary sewer line, the said line shall be tested for leakage by either infiltration or exfiltration (air testing) depending upon the groundwater table level. The Contractor shall be required to supply all equipment or materials and manpower required to perform any and all acceptance tests required by Aqua Engineers, Inc.

The Contractor may test using either the Water Exfiltration Test or the Air Test as described below. Due to safety concerns when air testing large-diameter sewers, it is recommended (not required) that sewer mains larger than 15 inches in diameter be tested using the Water Exfiltration Test.

WHEN TESTED:

1. In areas to be left unpaved, the pressure test shall be made after the backfill is satisfactorily compacted.

2. In areas to be paved, the pressure test shall be made after the "base" material has been satisfactorily compacted.

The test, as noted in item 1 or 2, above, is considered the "official test."

However, preliminary testing is strongly recommended and may be conducted by the Contractor at any time prior to the "official test."

7.2 LOW PRESSURE AIR TESTING REQUIREMENTS

The Contractor shall furnish at his own expense all materials, equipment and manpower required to perform the test. The sewer laterals shall be tested by inserting air plugs in the lateral and isolating the portion of the sewer lateral that has been replaced or rehabilitated. The lateral, including the cleanout wyes, shall be air tested. If the tested line does not meet the requirements of the test, the Contractor, at his own expense, shall determine, locate, and remedy the cause.

Aqua Engineers, Inc. will allow air testing to be completed provided that the

Contractor meets the following requirements:

1. The Contractor shall be fully responsible and take all precautions necessary to ensure the safety of their workers.

2. All plugs shall be adequately braced to support the full load developed.

3. No workers shall be allowed in the excavation or manhole while the

Section: Appendix EE Aqua Engineers Sewer Requirements

Page EE-8 line is under pressure. The Contractor shall make provisions for reading the pressure at the ground surface and for safely releasing the air pressure without entering the manhole or excavation.

4. Air shall be slowly fed into the plugged pipe until the internal air pressure reaches 4.0 pounds per square inch greater than the average back pressure of any groundwater that may submerge the pipe.

At least 2 minutes shall be allowed for temperature stabilization before proceeding further.

5. The rate of air loss shall then be determined by measuring the time interval required for the internal pressure to decrease from 3.5 to

2.5 pounds per square inch greater than the average back pressure of any groundwater that may submerge the pipe.

The minimum test time considered acceptable shall be calculated using Ramseur’s equation as follows:

where

T = shortest time, in seconds, allowed for the air pressure to drop 1.0 psig

K = 0.000419 DL, but not less than 1.0

Q = 0.0015 cubic feet/minute/square feet of internal surface

D = nominal pipe diameter in inches

L = length of pipe being tested in feet.

Each section of sewer main and service lateral shall be tested between successive manholes by plugging and bracing all openings in the sewer lines. If any leaks are found, the air pressure shall be released, the leaks eliminated, and the test procedure started over again.

The final leakage test of the sewer main line and branching service laterals shall be conducted in the presence of the Collection System Superintendent.

The time and procedure for air testing the pipe shall be calculated in accordance with ASTM C 828.

Q

DK 0.085 = T

Section: Appendix EE Aqua Engineers Sewer Requirements

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7.3 WATER EXFILTRATION TEST REQUIREMENTS:

After pipe installation and cleaning, the section of pipeline to be tested shall be prepared for testing by plugging the upper side of the downstream manhole and all openings in the upstream manhole except the downstream opening. Where manholes are widely spaced, sections may be tested by blocking upstream end of pipe. Where grades are slight, two or more sections between manholes may be tested at once. Where grades are steep, and excessive test heads would result by testing from one manhole to another, test tees the full size of the main shall be installed at intermediate points so the maximum head on any section under test will not exceed 15 feet.

A section of pipe prepared as above shall be tested by filling with water to an elevation 5 feet above the top pipe at the upstream end of the test section, or 5 feet above the existing groundwater elevation, whichever is greater. Where required due to high groundwater levels, Contractor shall provide standpipe to allow for the required testing head. The testing head may be above the ground surface in some cases. The water shall be introduced into the test section at least 24 hours in advance of the test period to allow the pipe and joint material to become saturated. The loss in water may be determined by measuring additions of water required to maintain the specified head or by measuring the rate of fall of water level, but the level shall not be allowed to fall more than 1 foot below the initial elevation.

Should the initial test show excess leakage in a section of pipe, it is permissible to draw the water off and test the manholes that contained water. This test shall be made by plugging all the openings in the manholes and filling with water to the same elevation as existed during the test. The leakage from the manhole may be deducted from the total leakage of the test section in calculating the pipe leakage.

The pressure shall be maintained for not less than 2 hours. Leakage shall not exceed 80 gallons per inch of diameter per mile of pipe for 24 hours. All expense of testing shall be borne by the Contractor.

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SECTION 8

CCTV INSPECTION

8.1 DESCRIPTION / REQUIREMENTS

All 8-inch and greater main sewers will be subject to initial closed-circuit television inspection performed by a third party hired by the Contractor prior to acceptance. The Contractor shall repair all problems revealed by the television inspection at its own cost. The Contractor shall coordinate with the Collection System Superintendent to arrange for a compatible time to conduct the inspection.

The complete job is ready for television inspection when the following work has been completed:

1. All sewer laterals and mains are installed and backfilled.

2. All structures are in place, complete and pipes are accessible from structures.

3. All other underground facilities, public and private, utility piping and conduits are installed.

4. Pipelines to be inspected have been flushed.

5. Final air or water testing has been completed and passed.

When the above work is complete, the Contractor shall arrange for the CCTV inspection.

The Contractor of the project will notify the Collection System Superintendent as to the scheduled date of the CCTV inspection.

The CCTV inspection shall be recorded in color using the digital CDROM or VHS format. An individual run report shall be prepared (typed) for each lateral inspected. One set of the VHS or CDROM and any paper reports shall be submitted to the Collection System Superintendent for review.

Upon receipt of the inspection tapes and reports, the Collection System

Superintendent will notify the Contractor in writing within five (5) working days of any deficiencies revealed by the CCTV inspection that will require repair. If corrective work is indicated and the Contractor wishes to view the videotapes, he shall contact Aqua Engineers, Inc. to set a time for the viewing.

Sewer mains and laterals that have been corrected must be retested and re-televised.

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The procedure outlined above will be repeated until all deficiencies observed by CCTV inspection have been corrected to the complete satisfaction of Aqua Engineers, Inc.

The following conditions observed during the CCTV Inspection shall be considered as defects which will require correction prior to acceptance by Aqua Engineers, Inc.

1. Joint separations which are ¾-inches less than full insertion of the joint.

2. Offset or cocked joints.

3. Chips, cracks, indentations and other damage which would impact the structural integrity of the pipe and/or reduce the service life of the pipe.

4. Infiltration.

5. Protrusion of gasket into the piping at joints indicative of an improperly assembled joint.

6. Irregularly shaped pipe.

7. Pipe sags

8. Other obvious defects

The following conditions observed during the CCTV Inspection shall be considered as defects which will require correction prior to acceptance by Aqua Engineers, Inc.

Section: Appendix EE Aqua Engineers Sewer Requirements

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TABLE 1

SAG TOLERANCES

Pipe Slope

Nom. Pipe

Size

Complies w/Specifications

Reconstruction

Required 6” < 1/2” >1/2” 8” < 1/2” >1/2” 10” < 1” > 1” 12” < 1” > 1”

<0.4%

>12” < 1” > 1” 6” < 1/2” > 1/2” 8” < 1/2” > 1/2” 10” < 1” > 1” 12” < 1” > 1”

0.4% to

0.7%

>12” < 1” > 1” 6” < 1” > 1” 8” < 1”. > 1” 10” < 1-1/2” > 1-1/2” 12” < 1-1/2”. > 1-1/2”

>0.7%

>12” < 1-1/2” > 1-1/2”

In the event that Aqua Engineers, Inc. determines that numerous defects are observable and is therefore indicative of poor workmanship, Aqua Engineers, Inc. may require that the entire segment be removed from Structure-to-Structure as Defective Work.

In the event of a dispute regarding the depth of a pipe sag, Aqua Engineers, Inc. will measure the depth of the sag with a measuring device. In the event that the depth of the sag is so obvious as to make the measurement unnecessary, should the Contractor request measurement of the depth; the Contractor will be charged for the additional work at Aqua Engineers, Inc.’s current inspection rate.

All Corrective Work shall be performed in accordance with the original Contract Plans and Specifications.

Sewer mains and laterals that have been corrected shall be leakage tested in accordance with the Section 6 and shall be re-inspected using CCTV at the Contractor’s expense.

In the event that defects are still observed after a maximum of two (2) repair attempts, the entire segment of piping shall be replaced from Structure-to-Structure.

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SECTION 9

MANDREL TESTS FOR PVC PIPE

9.1 DESCRIPTION / REQUIREMENTS

In addition to the previously identified tests, prior to acceptance by the Collection System Superintendent of any composite or PVC sanitary sewer line, the said line shall be tested initially after backfilling and paving, and a minimum of 31 days after backfilling to street subgrade or finish grade in non-street areas as follows (any section failing to pass the test shall be repaired by the Contractor). The line shall again be tested one (1) month prior to the end of the warranty period. Failure during this warranty period test will also require repair of the failed section. Re-rounding will not be allowed. The Contractor shall furnish at his own expense all equipment, material, and manpower necessary to perform the test.

9.2 Only re-excavation and the installation of new pipe will be permitted to replace rejected pipe. Pipe subjected to any correction method or process other than removal shall be replaced with new pipe regardless of whether the method appears “successful” or not.

Contractor shall be required to provide replacement pipe.

9.3 Following the placement and densification of backfill and after making subgrade but prior to placing of permanent base pavement or concrete, all main line pipe shall be cleaned and then mandrelled to measure for obstructions (deflections, joint offsets, and lateral pipe intrusions). A rigid mandrel, with a circular cross section having a diameter as indicated below, shall be pulled through the pipe by hand:

Mandrel shall be 95% of I.D of pipe with at least nine (9) fins or any odd number greater than 9.

I.D. = inside diameter as determined to be the maximum average per AWWA specification for the type of pipe.

9.4 The minimum length of the circular portion of the mandrel shall be equal to the nominal diameter of the pipe. The costs for all tests necessary to verify pipe adequacy are the responsibility of the Project Contractor. The Contractor shall provide the mandrel. The mandrel may be reviewed by the inspector after the test at his request. Upon request, the mandrel shall be immediately presented to the inspector who shall examine it and return it within two (2) working days. The request may be made before and/or after the test.

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SECTION 10

TESTING OF MANHOLES

10.1 DESCRIPTION

All Project manholes shall be tested using either a vacuum or hydrostatic testing method described below.

10.2 VACUUM TESTING:

Vacuum test procedures and requirements shall be as follows:

1. After completion of the manhole barrels but prior to backfilling and grade ring installation and interior coating, all openings in the manholes are sealed with plugs and a rubber ring "donut" type plug inserted inside the opening of the cone.

2. A small vacuum pump is attached to a hose connected to the plug and 4 psi of vacuum applied.

3. The vacuum is permitted to stabilize at 3.5 psi for 1 minute; then the test is begun.

4. The manhole must maintain vacuum such that no greater than 0.5 psi of vacuum is lost during the specified test period.

5. The specified test period is as follows:

Manhole depth, ft Test period, min.

0-5 4.5 5-10 5.5 10-15 6.0 Greater than 15 6.5

6. Manholes that fail the test shall be patched as required and retested.

7. A vacuum regulator shall be provided on the vacuum pump such that no greater than 10 psi can be applied to the manhole during the test.

All manholes that do not meet the leakage test, or are unsatisfactory from visual inspection, shall be repaired to the satisfaction of the Collection System Superintendent.

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10.3 HYDROSTATIC TESTING

Hydrostatic test procedures and requirements shall be as follows:

1. All sewer manholes that shall be hydrostatically tested will be tested for leakage after installation, but prior to being backfilled.

Prior to hydrostatic testing, all manholes shall be visually inspected for leaks. All leaks or cracks shall be repaired by the Contractor, with nonshrink grout, prior to hydrostatic testing, to the satisfaction of the Collection System Superintendent. All pipes entering the manhole shall be sealed at a point outside the manhole walls so as to include testing of the pipe/manhole joints.

2. The manhole shall be filled with water to a level 2 inches below the top of the frame. Safety lines shall be secured to all plugs utilized. After a period of at least 1 hour to allow the water level to stabilize, the manhole shall be refilled and the water level shall be checked. The water level shall again be checked after a period of 4 hours. Leakage in each manhole shall not exceed 0.1 gallons per hour per foot of head above the invert, or the Contractor shall be required to make all necessary repairs and retest the manhole.

3. The exterior of the manhole shall be inspected during this period for visible evidence of leakage. Visible moisture, sweating, or beads of water on the exterior of the manhole shall not be considered leakage, but any water running across the surface will be considered leakage and shall be repaired to the satisfaction of the Collection System Superintendent regardless of the volume of water lost.

Section: Appendix EE Aqua Engineers Sewer Requirements

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Appendix A

Pump Station Design Standards

The Contractor shall follow all guidelines established in the City and County of Honolulu, Design Standards of the Department of Wastewater Management, Volume 1, July, 1993, Section 30, Design of Wastewater Pump Stations, as the same may be amended from time to time, for all collection system projects, including the following amendments.

31. Factors to be Considered

31.1 Type of Station

31.1.1 Built-In-Place Wastewater Pump Stations: Except as noted in Section 3all pump stations shall be built-in-place and shall be of the drywell type based upon motor horse power size

a. Submersible Pump Wet Well: < 100 hp

b. Dry Pit Wet Well: ≥ 100 hp

32. Site Improvements (no changes)

33. Structure and Appurtenances

33.2.2 c. Vertical distance between pump start and stop levels: 1 foot minimum.

When applicable, the wet well shall be divided into two or more sections, properly interconnected, to facilitate repairs and cleaning.

Wet wells shall have an epoxy coat to protect against hydrogen sulfide corrosion unless corrosion is not expected.

33.2.3 Access shall be provided to all wet well compartments by means of manholes or approved hatches. Access manholes shall be located where they can best facilitate maintenance operations.

33.4.1 Ground level floor openings shall be covered with removable gratings and provided with removable pipe posts and guard chains around its periphery. Stationary posts with removable pipe railing sections shall be provided around intermediate floor openings. All openings shall be provided with portable peripheral curbing and shall be large enough to provide ample room to install or remove pumps and other equipment.

Fall protection shall be provided on any freefall over 6 feet.

33.4.2 Hoists for station shall be electrically powered. Plug-in type hoists

Section: Appendix EE Aqua Engineers Sewer Requirements

Page EE-19 operating on single phase 120 volts may be allowed for small stations.

34. Pumps, Motors, and Controls

34.1.3 Types of Pumps: All pumps shall be submersible vertical units, wet well or dry well installations. Motors for stations with pump capacities greater than 2 mgd shall be installed on the ground level floor and connected to pumps with removable driveshafts, intermediate driveshafts, and equipped with removable and adjustable flexible couplings.

34.1.4 Pump Construction:

a. Dry Pit Pump

5. Intermediate drive shaft sections should be not more than

12 feet in length. Where more than one drive shaft is required, self aligning steady bearings shall be provided at each intermediate location. Bearings shall be equipped with mechanism to allow alignment adjustments. Bearing and shaft guards shall be provided. Safe access to bearing and guards shall be provided. Grease fittings shall be equipped with extension tubing to facilitate lubrication.

34.1.5 Motor Construction:

a. Dry Pit Motor

1. Motors shall conform to the latest standards of the NEMA and the IEEE. Motors shall have ample capacity to operate the pumps under all head and discharge conditions without overloading. Starting current taken by the motors shall not exceed the values as regulated by the Hawaiian Electric Company or as permitted by the emergency generator. Motors shall be capable of safely rotating in the reverse direction at runaway speed without damage to appurtenances under shutoff head. Motors shall operate pumps through flexible shafts and couplings. Vertical shaft motors mounted on floors shall be furnished with rugged cast iron or steel foundation rings. Motors shall be induction type, drip proof, totally enclosed, fan cooled, premium efficiency, inverter rated, and suitable for operation from 230/460 volts, 3 phase, 60 cycle A.C. power systems.

Motors shall have a service factor of 1.15. All pump motors shall have running time meters installed at the starter. All pump motors above 20 HP shall have an ammeter installed at the starter.

b. Submersible Motor

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2. Pump motors shall be housed in a watertight casing and shall have moisture resistant insulated windings made to Class H specifications. Stator windings shall be insulated by the trickle impregnation method using Class H monomer-free polyester resin resulting in a winding fill factor of at least 95%. Pump motors shall have cooling characteristics suitable to permit continuous operation in a non-submerged condition.

34.1.8 Spare Parts: All installations shall be furnished with the following minimum spare parts:

d. For Motor:

2. One set space heaters for each size of motor.

3. One brush holder assembly (for each size of wound rotor motor).

34.2.1 Liquid Level Controls: The operation of wastewater pump motors shall be automatically controlled by liquid level sensing devices, actuated by wastewater level fluctuations in the wet well. Float type, pneumatic type, 4-20 mA or conductive probe, or a combination of 4-20 mA and conductive probe float and pneumatic type device should be provided. Automatic control settings shall be manually adjustable.

34.2.3 Starters: Unless otherwise restricted by the Hawaiian Electric

Company starters shall be of the combination, magnetic, across-the-line type. Reduced voltage starters shall be of the auto-transformer solid state type.

34.3 Instrumentation and SCADA System

34.3.5 Flow Meters:

d. Flow meter pressure differential producers shall be of the standard venture type. Insert type differential producers or Dall tubes shall not be permitted.

e. Magnetic flow meters are preferred.

35. Piping, Includes Valving (no changes)

36. Emergency Provisions (no changes)

37. Miscellaneous (no changes)

38. Force Mains (no changes)

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Appendix B

Pump Station SCADA Specifications

This specification represents the requirements for the monitoring, alarming, voice annunciation and historical data collection from the MultiSmart pump station controller located at a wastewater pump station associated with the Schofield Wastewater Treatment Plant control room.

Existing Hardware & Software:

The control room at the Schofield Wastewater Treatment plant has the following hardware and software available for integration into the existing SCADA system:

1) Hardware

a) SCADA-SERVER (HP ML350)

b) SCADA-HISTORIAN (HP ML350)

c) TERMINAL-SERVER (HP ML350)

d) Fortinet Firewall

e) Internet Access (Clearwire)

2) Software

a) Rockwell: RSView SE 4.0

b) Rockwell: RSView SE 4.0 client

c) Rockwell: RSLogix 5000

d) Software Toolbox: TopServer DNP-3

e) Software Toolbox: Linkmaster

f) Specter Industries: WIN911

g) Rockwell: RSBizware, RSSQL, PlantMetrics

h) Sierra Wireless: Wireless ACE

The hardware and software as listed above shall be utilized for the additional communications, monitoring, alarming, voice annunciation and data collection from the added pump station.

Additional Hardware & Software Requirements:

The following is a list of additional software licenses that shall be included for the addition of a pump station:

1) Software:

a) Software Toolbox: TopServer DNP-3 client license

b) Microsoft Terminal Server license (two licenses)

c) Fortinet VPN client license (two licenses)

d) RSView SE 4.0 client license (one license)

2) Radio:

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a) SierraWireless (AirLink) Raven II serial cellular radio (one)

b) Cellular radio antenna (vandal proof if directional is not required)

c) Null modem serial cable

3) UPS: (coordinate with supplier of MultiSmart controller)

a) Astrodyne: AD-55/DRL 55 Watt Single Output with Battery Charger

b) Battery: 12 volt, 4 amp-hour sealed lead acid or equivalent.

c) Note: AirLink radio shall be powered from the Astrodyne output.

SCADA Integration Requirements:

Cellular Communications:

The communications between the MultiSmart controller and the SCADA system shall be via cellular communications. The contractor shall be responsible for activation and configuration of the AirLink radio. This includes the activation fee and configuration in accordance with the DNP-3 driver communication requirements. The monthly cellular fee shall be the responsibility of Aqua Engineers. The radio shall be activated with a static IP address. The radio shall be registered with a suitable cellular carrier that provides reliable signal strength for high speed communications. The contractor shall perform a radio signal strength survey to determine the best cellular carrier signal at the pump station location. The preferred cellular carrier is Verizon, but the signal strength will be the final determination of the carrier to use at the pump station location.

Wireless ACE configuration software shall be used to configure the Raven cellular radio.

A template of the final configuration shall be provided to the owner upon final acceptance. The contractor shall demonstrate the operation of the radio at a minimum of -90 RSSI after the final installation of the radio.

RSView SE Integration:

All SCADA displays, alarm logging, SCADA database and trending shall be integrated into the existing RSView SE 4.0 system located in the Schofield control room. The final installation shall be identical to the existing methods of operation.

The following are typical SCADA displays that are to be added for each pumping stations. These displays are to reside in the SCADA server located in the Schofield control room.

Page EE-23

Overview Display:

The overview display shall show the flow paths to the Schofield Wastewater Treatment Plant. The overall status of the pump station shall be displayed in real-time on a single multi-state indicator and status navigation button. The pump station status button shall display the following conditions:

• Station Name

• All Systems Normal

• Acknowledged Communication Error

• Unacknowledged Communication Error

• Unacknowledged Critical Alarm

• Acknowledge Critical

• Unacknowledged Non-Critical

• Acknowledged Non-Critical

Sewer Pump Station Overview

Page EE-24

Pump Station Main Display:

The following is the main display of a typical pump station. Each pump station main display shall contain the following components:

• Navigation buttons

• Station wet well graphics

• Animated wet well level

• Real-time station statistics (inflow, outflow & level)

• Real-time chart for pump cycles and wet well level

• Pump statistics

• Station statistics

• Pump status (ON, OFF, Decommissioned, Fault)

• WIN911 status monitoring

• Overall Systems Status (also navigation to details)

Pump Station Main Display

Page EE-25

Alarm Status Display:

The Alarm Status display indicates the real-time status of all critical and non-critical alarm conditions for the pump station. There are a minimum of 10 pump alarm conditions that are continually monitored and there are 16 station alarms. In addition the wireless communication information is also displayed. This display also provides Alarm Log acknowledgement, Communications Error acknowledgement, WIN911 E-mail test and WIN911 voice test.

Pump & Station Alarm Status Display

Page EE-26

Station Power Chart:

The pump station power chart shall display the power fluctuation over a 24 hour period.

The operator shall have the ability to scroll through the power chart. Station power data shall be stored in the RSView SE data logger. All data shall be stored for a period of 1 month and then automatically deleted.

Pump Station Power Chart

Page EE-27

Station Flow Chart:

The pump station flow chart shall display the flow data over a 24 hour period. The operator shall have the ability to scroll through the flow chart. Flow data shall be stored in the RSView SE data logger. All data shall be stored for a period of 1 month and then automatically deleted. The following data shall be displayed:

• Station Inflow Rate

• Pump 1 Outflow Rate

• Pump 2 Outflow Rate

• Total Station Volume (reset at midnight)

Station Flow Data Chart

Page EE-28

Station Runtime Chart:

The pump Runtime chart shall display the runtime data for each pump over a 24 hour period. The operator shall have the ability to scroll through the runtime chart. Runtime data shall be stored in the RSView SE data logger. All data shall be stored for a period of 1 month and then automatically deleted. The following data shall be displayed:

• Pump 1 Runtime

• Pump 2 Runtime

Pump Runtime Chart

Page EE-29

Station Daily Volume Bar Chart:

The Station Daily Volume Bar Chart shall display the total daily station volume data for a default period of one week. The operator shall have the ability to adjust the time periods as follows:

• Specific interval (days)

• Weekly

• Monthly

• Annual

The daily volume data shall be stored in the RSBizware Historian and viewed from RSBizware PlantMetrics software. All data shall be stored indefinitely on the existing SCADA-HISTORIAN server located in the Schofield main control room. The data shall be written once each day at midnight to the historian RSSQL database.

Pump Station Daily Volume Bar Chart

Page EE-30

Page EE-31

PLC Programming:

There are redundant Allen-Bradley ControlLogix PLC processors located in the Schofield main control room. The DNP-3 IO driver initiates a heart beat to the MultiSmart controller every 15 minutes. The heart beat reply is monitored by a routine located in the PLC. A loss of communication alarm is initiated in the PLC if a heart beat reply is not obtained within every 30 minutes. The communication loss alarm is sent to WIN911 for e-mail notification of communication loss with the pump station. All PLC programming must be performed utilizing function block diagramming. PLC programming techniques shall be identical to the existing programming.

WIN911 Programming:

The WIN911 voice and e-mail alarm notification system shall be programmed to mimic the existing programming for the pump stations. The voice annunciation shall match the existing voice annunciation techniques. The following alarm points shall be programmed into the WIN911 system as shown below:

Typical WIN911 programmed alarms

Training:

The contractor shall supply the following training to the Aqua Engineers staff:

1) Operator Training:

a) Provide one day for a maximum of six persons

b) Submit a detailed operations manual

Section: Appendix EE Aqua Engineers Sewer Requirements

Page EE-32

c) Provide detailed instructions on every manner of operation of the system

2) Maintenance Training:

a) Two days for a maximum of four persons

b) Submit detailed maintenance manual

c) Provide detailed instruction on the following:

i) SCADA programming

ii) PLC programming

iii) Historical collection programming

iv) WIN911 programming

v) AirLink radio programming

vi) DNP-3 driver programming

vii) LinkMasters programming

Documentation:

The contractor shall provide detailed documentation on all hardware and software provided under this contract. This includes but is not limited to the following:

1) Documentation:

a) DNP-3 driver user manual

b) VPN client license user documentation

c) AirLink radio user manual

d) Power supply user manual

2) Licensing:

a) Copies of all software licenses

b) Copies of all hardware warranties

Warranty:

The contractor shall warranty the installation for a period of one year after final acceptance by the Contracting Officer’s Representative (COR).

Final Acceptance:

The contractor shall request final acceptance from the COR after all conditions of the above specification are completed. The final acceptance shall include a final demonstration of the installation. All deficiencies shall be completed prior to application of final acceptance.

Page EE-33

Appendix C

AQUA ENGINEERS Schofield Barracks

Wastewater Treatment Plant

PRETREATMENT CODE

Page EE-34

Aqua Engineers

Schofield Barracks

Wastewater Treatment Plant

Pretreatment Code

DRAFT

February 2006

Page EE-35

Page EE-36 i

TABLE OF CONTENTS

SECTION 1. GENERAL PROVISIONS

1.1 Purpose and Policy

1.2 Administration

1.3 Definitions

1.4 Abbreviations

SECTION 2 . GENERAL REQUIREMENTS

2.1 Prohibited Discharge Standards

2.2 Federal Categorical Pretreatment Standards

2.3 State Requirements

2.4 Local Limits

2.5 Aqua Engineer's Right of Revision

2.6 Special Agreement

2.7 Dilution

2.8 Pretreatment Facilities

2.9 Deadline for Compliance with Applicable Pretreatment Requirements

2.10 Additional Pretreatment Measures

2.11 Accidental Discharge/Slug Control Plans

2.12 Hauled Wastewater

SECTION 3. WASTEWATER DISCHARGE PERMIT REQUIREMENTS

3.1 Requirements to Complete Industrial User Surveys

3.2 Wastewater Discharge Permitting: Requirements for Discharge

SECTION 4. WASTEWATER DISCHARGE PERMIT APPLICATION

4.1 Wastewater Analysis

4.2 Existing Connections

4.3 New Connections

4.4 Application Contents

4.5 Application Signatories and Certification

4.6 Wastewater Discharge Permit Decisions

SECTION 5. WASTEWATER DISCHARGE PERMIT ISSUANCE PROCESS

5.1 Wastewater Discharge Permit Duration

5.2 Wastewater Discharge Permit Contents

5.3 Wastewater Discharge Permit Appeals

5.4 Wastewater Discharge Permit Modification

5.5 Wastewater Discharge Permit Transfer

5.6 Wastewater Discharge Permit Revocation

5.7 Wastewater Discharge Permit Reissuance

SECTION 6. REPORTING REQUIREMENTS

6.1 Baseline Monitoring Reports

6.2 Compliance Schedule Progress Reports

6.3 Reports on Compliance with Categorical Pretreatment Standard Deadline

6.4 Periodic Compliance Reports

6.5 Reports of Changed Conditions

6.6 Reports of Potential Problems

6.7 Reports from Unpermitted Users

6.8 Notice of Violation/Repeat Sampling and Reporting

6.9 Timing

6.10 Record Keeping

6.11 Disclosure of Records

SECTION 7. SAMPLING AND ANALYTICAL REQUIREMENTS

7.1 Sampling Requirements for Users

7.2 Analytical Requirements

7.3 Aqua Engineers Monitoring of User's Wastewater

Section: Appendix EE Aqua Engineers Sewer Requirements

Page EE-37 ii

SECTION 8 COMPLIANCE MONITORING

8.1 Inspection and Sampling

8.2 Monitoring Facilities

8.3 Entry Orders

8.4 Vandalism

SECTION 9. CONFIDENTIAL INFORMATION

SECTION 10. ADMINISTRATIVE ENFORCEMENT REMEDIES

10.1 Notification of Violation (NOV)

10.2 Compliance Agreements

10.3 Compliance Orders

10.4 Show Cause Hearing

10.5 Cease and Desist Orders

10.6 Emergency Suspensions

10.7 Termination of Discharge (Non-Emergency)

10.8 Appeal Procedures

SECTION 11 . LEGAL ENFORCEMENT REMEDIES

11.1 Injunctive Relief

11.2 Penalties

11.3 Remedies Non-exclusive

SECTION 12. SUPPLEMENTAL ENFORCEMENT ACTION

12.1 Performance Bonds

12.2 Financial Assurances

12.3 Public Nuisances

SECTION 13. AFFIRMATIVE DEFENSES TO DISCHARGE VIOLATIONS

13.1 Upset

13.2 Prohibited Discharge Standards

13.3 Bypass

SECTION 14 . [RESERVED]

SECTION 15 . MISCELLANEOUS PROVISIONS

15.1 Pretreatment Charges and Fees

15.2 Severability

15.3 Conflicts / Repeal

15.4 Non-Liability

15.5 Savings Clause

SECTION 16. EFFECTIVE DATE

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SECTION 1. GENERAL PROVISIONS

1.1 Purpose and Policy

This code sets forth uniform requirements for Users of the Schofield Barracks Wastewater

Treatment Plant (WWTP), and enables Aqua Engineers, Inc. (“Aqua Engineers”) to comply with the requirements of its contract with the U.S. Army, its National Pollutant Discharge Elimination System (NPDES) permit and all applicable State and Federal laws, including the Clean Water Act (33 USC 1251 et seq.) and the General Pretreatment Regulations (40 CFR Part 403). The objectives of this code are:

A. To prevent the introduction of pollutants into the WWTP that will interfere with the operation of the WWTP;

B. To prevent the introduction of pollutants into the WWTP that will pass through the

WWTP, inadequately treated, into receiving waters or otherwise be incompatible with the

WWTP;

C. To ensure that the quality of WWTP sludge is maintained at a level which allows its use and disposal in compliance with applicable statutes and regulations;

D. To protect WWTP personnel who may be affected by wastewater and sludge in the course of their employment and to protect the general public;

E. To improve the opportunity to recycle and reclaim wastewater and biosolids from the WWTP; and

F. To promote strategies that reduce the amounts of pollution generated by Users, thereby reducing the associated hazards to the WWTP and receiving waters;

G. To provide for the equitable distribution of the cost of operation, maintenance, and improvement of the WWTP; and

H. To enable Aqua Engineers to comply with its National Pollutant Discharge Elimination

System permit conditions, sludge use and disposal requirements, and any other Federal or State laws to which the WWTP is subject.

This code shall apply to all Users of the WWTP. The code defines certain prohibited discharges;

authorizes the issuance of wastewater discharge permits; authorizes monitoring, compliance, and enforcement activities; establishes administrative review procedures; requires User reporting; and provides for the setting of fees, recovery of damages, and collection of penalties.

1.2 Administration

Except as otherwise provided herein, the Operations Superintendent shall administer, implement, and enforce the provisions of this code. Any powers granted to or duties imposed upon the Operations Superintendent may be delegated by the Operations Superintendent to other Aqua Engineers personnel.

1.3 Definitions

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Unless a provision explicitly states otherwise, the following terms and phrases, as used in this code, shall have the meanings hereinafter designated.

A. Accessible. Accessible, when applied to required pretreatment monitoring or treatment equipment, shall mean direct access without the necessity of removing any panel, door, vehicle, equipment, materials, or other similar obstruction.

B. Act or "the Act". The Federal Water Pollution Control Act, also known as the Clean

Water Act, as amended, 33 USC 1251 et seq.

C. Administrative Penalty (fine). A punitive monetary charge unrelated to treatment cost, which is assessed by the Operations Superintendent rather than a court.

D. Applicable Pretreatment Standards. For any specified pollutant, Aqua Engineers’ prohibitive standards, Aqua Engineers’ specific pretreatment standards (local limits), State of Hawaii pretreatment standards, or EPA's Categorical Pretreatment Standards (when effective), whichever standard is appropriate and most stringent.

E. Approval Authority – State of Hawaii Department of Health.

F. Aqua Engineers –Aqua Engineers, Inc., owner and operator of the Schofield Barracks

WWTP.

G. Authorized Representative of the User.

1) If the User is a corporation:

a) The president, secretary, treasurer, or a vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation;

or

b) The manager of one or more manufacturing, production, or operation facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25 million (in second-quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures;

2) If the User is a partnership or sole proprietorship: a general partner or proprietor, respectively;

3) If the User is a limited liability company or limited liability partnership:

a manager or member of either entity;

4) If the User is a Federal, State or local governmental facility: a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility, or his/her authorized designee.

5) The individuals described in paragraphs 1 through 4 above may designate another authorized representative if the authorization is in writing, the authorization specifies the individual or position responsible for the overall operation of the facility from which the discharge originates or having overall

Section: Appendix EE Aqua Engineers Sewer Requirements

Page EE-40 responsibility for environmental matters for the company, and the written authorization is submitted to Aqua Engineers.

H. Average Daily Flow. Average Daily Flow shall be defined as the arithmetic mean of the total Process Wastewater flow over a one (1) year period. This mean shall be calculated based on days when a discharge occurs.

I. Best Management Practices (BMPs) means schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of "waters of the United States." BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage.

J. Biochemical Oxygen Demand (BOD). The quantity of oxygen utilized in the biochemical oxidation of organic matter amenable to measurement by an approved method described 40 CFR 136; under standard laboratory procedures for five (5) days at 20° centigrade, usually expressed as a concentration [milligrams per liter (mg/L)].

K. Bypass. The intentional diversion of wastestreams from any portion of a User’s treatment facility.

L.…