HomeMy WebLinkAboutHazardous Materials Technical Opinion Report 3/3/08 HUGHES ASSOCIATES, INC.
FIRE SCIENCE & ENGINEERING
Water Treatment Facility
Prior Lake, MN
March 3, 2008
Hazardous Materials Technical Opinion Report
Prepared for:
BOLTON&MENK,INC.
12224 Nicollet Ave.
Burnsville,MN 55337
15170 North Point Drive,Rogers,MN 55374-8666 • Phone 763-428-4170 • Fax 763-428-4972 • www.haifire.com
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 1
1.0 INTRODUCTION
Bolton & Menk, Inc. contracted Hughes Associates, Inc. (HAI) to prepare a Hazardous Materials
Technical Opinion Report in compliance with MSBC (IBC) Section 414.1.3 for the Water
Treatment Facility(WTF)located in Prior Lake,MN. The purpose of this report is to identify the
applicable code requirements related to the proposed storage and use of hazardous material at
Prior Lake WIT to assist the City of Prior Lake in their review of the project.
2.0 APPLICABLE CODES
The following references were utilized in this analysis and as the basis for the requirements
found in this report.
1. 2003 Minnesota State Building Code (MSBC), International Building Code
(IBC), 2000 Edition as amended by the State of Minnesota
2. 2003 Minnesota State Fire Code (MSFC), International Fire Code (IFC), 2000
Edition as amended by the State of Minnesota
3. NFPA 430—Code for the Storage of Liquid and Solid Oxidizers (2004 Edition)
3.0 OCCUPANCY CLASSIFICATION
Chapter 3 of the Building Code requires that every building shall be classified by its use or the
character of its occupancy as set forth in Section 302.1. When hazardous materials are present
the occupancy of the building or an area of the building is dictated by the proposed quantity of
storage and/or use compared to the Maximum Allowable Quantity(MAQ)per control area found
in MSBC Tables 307.7(1)& (2).
The bulk storage of hazardous materials is in three areas of the facility an include Chemical
Room (109), Fluoride Room (108), and the Generator Room (104). There is closed use of the
hazardous materials in areas outside these rooms, but based on the delivery system proposed,
pump sizes, safeguards/monitoring, and location of shut off valves, the quantities are
significantly below the (MAQ) and are not a concern in classifying the occupancy of the
building.
Below is a summary of the proposed storage by location, and the classification of the hazardous
materials. All of the hazardous materials are liquids and reported in gallons.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 2
Chemical Room
• Sodium Hypochlorite(15%solution)-2,365 gallons A
[CORROSIVE]
Z; ,
• Sodium Permanganate(40%solution) -905 gallons'-'
[OXIDIZER CLASS 2, CORROSIVE, OTHER HEALTH HAZARD]
• Phosphate Solution (21% solution)- 175 gallons -;
[IRRITANT]
Fluoride Room
• Fluorosilicic Acid(25%solution) - 1,070 gallons A ,-r z = ~ s
[CORROSIVE]
Generator Room
• Diesel Fuel- 1,200 gallons
[COMBUSTIBLE LIQUID CLASS II, IRRITANT]
To determine the proper occupancy classification each room was treated as a separate area and
reviewed against the MAQ. The tables below summarize this analisis.
Table 1:Chemical Room(109)
PHYSICALHAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Corrosive dk�r,a` =_,i`.- 4s< 3,270 sa,< 1i 000 GAL
;s,'+pyo= S
Liquid Oxidizer—Class 2 . �� 905 140< 500 GAL
Liquid Irritant AGT.3'1 v 175 NR GAL
Liquid Other Health Hazard 1°o 905 NR GAL
NR—Not Regulated
Table 2:fluoride Room(108)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Corrosive A., zo5 1,070 .4.x,C 1,000 GAL
Table 3:Generator Room(104)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Combustible Liquid-Class II 1,200 240 GAL
Liquid Irritant 1,200 NR GAL
NR—Not Regulated
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 3
Based on the information above the rooms are classified by the MSBC as follows:
Chemical Room(109) Group H-3/H-4
Fluoride Room(108) Group H-4
Generator Room(104) Group H-3
4.0 CHEMICAL ROOM (GROUP H-3/H-4)
4.1 Construction
The Chemical Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with 3/4-hour doors or opening protection. Per
the drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight(MSFC 4004.1.5).
4.2 Egress
The Chemical Room is 565 SF and has an assumed occupant load of 2. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with two means of
egress, with one direct to the exterior. The egress for the room is within the allowable
150 ft travel distance.
4.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the storage of Oxidizers, the system shall also meet the
requirements of NFPA 430. Per NFPA 430 the storage must meet a design of 0.20
gpm/SF over a remote area of 3,750 SF. Therefore, based on the two requirements the
room is required to have a sprinkler design of 0.2 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 4
4.4 Fire Detection and Alarm
In addition to the standard requirements of the building and monitoring of the sprinkler
system, the Chemical Room requires automa; smoke detectio iue to the presence of
oxidizers per MSFC Section 4004.1.7.
Per MSBC Section 901.6.3, ' "_ automatic fire-extinguishing and
emergency alarm systems in Group H occupancies shall be monitored by an approved
supervising station.
4.5 Emergency Alarm
An approve• manual emergency alarm system shall be provided for the Chemical Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
2. Activation of an emergency alarm4initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
4.6 Ventilation
Per MSFC Section 2704.3, ventilation for the Chemical Room is required. A separate
ventilation systems for the room shall be designed as follows:
1. The system must be continuously running.
2. Mechanical ventilation shall be not less than 565 cfm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in a position adjacent to the
access door in.an approve d location. The switch shall be a break glass type and
-labeled"VENTILATION SYSTEM EMERGENCY SHUTOFF".
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided with 800 cfm of continuous
exhaust.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 5
4.7 Spill Control and Secondary Containment
The Chemical Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 1,100 gallons and the sprinkler design (0.20 gpm/sf)the
total volume of the containment required is 3,360 gallons.
The drawings show the trench is currently design to contain 1,683 gallons, which does
not meet the minimum above. M sui
4.8 Smoke and Heat Venting
The Chemical Room due to the presence of oxidizers is required by MSFC Section
4004.1.6 to have smoke and heat venting per MSFC Section 910. However, given the
size of the room and the fact that the 2007 MSBC/MSFC has removed the requirement
for smoke and heat venting as related to this room, HAI feels it would be acceptable to
not provide the smoke and heat venting required if acceptable to the City of Prior Lake.
4.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Chemical Room shall be in accordance with the following:
1. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
2. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
3. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a. The point of use.
b. The tank, cylinder or bulk source.
4. Manual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 6
5. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
6. Piping for sodium hypochlorite solution or sodium permanganate solution that has
a working pressure greater than 15 psi shall be provided with an approved means
of leak detection and emergency shutoff or excess flow control.
4.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
4.11 Incompatible Materials
The phosphate MSDS states to keep it away from strong base, so phosphate and
hypochlorite should be separated. The plan shows that these materials are to be separated
by 20 feet, which is in compliance with MSFC Section 2703.9.8 for incompatible
materials. It is also recommended that phosphate be provided with its own spill pallet or
other means of keeping the phosphate from spilling into the containment for the
hypochlorite solution.
The permanganate is a reasonably strong oxidizer, so you need to follow those rules. It
also should be kept away from acids, which the phosphate is a weak one and likely should
be separated. I did not see anything specific between the hypochlorite and permanganate
(but that doesn't mean it doesn't exist)
5.0 FLUORIDE ROOM (GROUP H-4)
5.1 Construction
The Fluoride Room is required to be separated from the remainder of the building by a 1-
hour occupancy separation(fire barrier)with 3 -hour doors or opening protection. Per the
drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight(MSFC 3104.1.1).
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 7
5.2 Egress
The Fluoride Room is 180 SF and has an assumed occupant load of 1. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with one means of
egress direct to the exterior. The egress for the room is within the allowable 175 ft travel
distance.
5.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
5.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Fluoride Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3, 6nual fire ala) automatic fire-extinguishing and
emergency alarm systems in Group Ffoccupancies shall be monitored by an approved
supervising station.
5.5 Emergency Alarm
An approved .anual emergenc alarm • stem shall be provided for the Fluoride Room as
stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
4. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door. '
5. Activation of an emergency alarm-initiating device shall sound a local alarm to
C o"1 a alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
f 4 6. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
5.6 Ventilation
Per MSFC Section 2704.3, ventilation for the Fluoride Room is required. A separate
ventilation systems for the room shall be designed as follows:
1. The system must be continuously running.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 8
2. Mechanical ventilation shall be not less than 180 cfm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in a position adjacent to the
access door in an approved location. The switch shall be a break glass type and
labeled"VENTILATION SYSTEM EMERGENCY SHUTOFF".
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided with 200 cfm of continuous
exhaust.
5.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 805 gallons and the required sprinkler design (0.20
gpm/sf)the total volume of the containment required is 1,525 gallons.
The drawings show the trench is currently design to contain 1,549 gallons, which meets
the minimum amount above.
5.8 Smoke and Heat Venting
Smoke and heat is not required for the Fluoride Room.
5.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Fluoride Room shall be in accordance with the following:
7. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
8. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 9
9. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a The point of use.
b. The tank, cylinder or bulk source.
10. Manual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
11. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
12. Piping for Fluorosilicic Acid solution that has a working pressure greater than
15 psi shall be provided with an approved means of leak detection and emergency
shutoff or excess flow control.
5.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically •
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
5.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
6.0 GENERATOR ROOM (GROUP H-3)
6.1 Construction
The Generator Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with 3/4-hour doors or opening protection. Per
the drawing the room is designed to be separated by 1-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12).
6.2 Egress
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 10
The Generator Room is 1,167 SF and has an assumed occupant load of 4. Per MSBC
Table 1014.1 the room is required to have two means of egress. The room is provided
with two means of egress, with one direct to the exterior. The egress for the room is
within the allowable 150 ft travel distance.
6.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the generator it is recommended that the design in this
area also meet the NFPA 37 requirements for Extra Hazard Group 1. Based on these 2
requirements the room should be designed for 0.30 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
6.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Generator Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3manual fire alarm, utom tic__fire-extinguishing and
emergency alarm systems in G p H occupancies shall be Monitored by an approved
supervising station.
6.5 Urgency Alarm
An approved manual emergency alarm system shall be provided for the Generator Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
2. Activation of an emergency alarm-initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
6.6 Ventilation
Per MSFC Section 3404.3.7.4 & 2704.3, ventilation for the Generator Room is required. -
Either mechanical or natural ventilation is required. No specific ventilation was found in
the design and must be provided.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 11
6.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment was not shown in the design. The
option to use a double wall tank in lieu of the curbs, sills, drainage, etc. is allowed for this
application.
If a double wall tank is not used then a leakage alarm will be required per MSBC 415.2.6.
6.8 Smoke and Heat Venting
Smoke and heat is not required for the Generator Room.
6.9 Tank Construction
The design, fabrication and construction of tanks shall comply with NFPA 30. Each tank
shall bear a permanent nameplate or marking indicating the standard used as the basis of
design.
Tanks shall be provided with normal venting as required by MSFC Section 3404.2.7.3
and must meet the following:
1. Vent lines from tanks shall not be used for purposes other than venting unless
approved.
2. Vent-line flame arresters and venting devices shall be installed in accordance with
their listings. Use of flame arresters in piping systems shall be in accordance with
API 2028.
3. Vent pipe outlets shall be located such that the vapors are released at a safe point
outside of buildings and not less than 12 feet above the adjacent ground level.
Vapors shall be discharged upward or horizontally away from adjacent walls to
assist in vapor dispersion. Vent outlets shall be located such that flammable
vapors will not be trapped by eaves or other obstructions and shall be at least 5
feet from building openings or lot lines of properties that can be built upon.
Per MSFC Section 3404.2.7.4 Stationary, above-ground tanks shall be equipped with
additional venting that will relieve excessive internal pressure caused by exposure to
fires. Emergency vents shall not discharge inside buildings. The venting shall be installed
and maintained in accordance with Section 4.2.5.2 of NFPA 30.
Filling, emptying and vapor recovery connections to the tank in accordance with MSFC
3404.2.7.5.2 shall be located outside of buildings at a location free from sources of
ignition and not less than 5 feet away from building openings or lot lines of property that
can be built on. Such openings shall be provided with a liquid-tight cap which shall be
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 12
closed when not in use and properly identified. An approved means or method in
accordance with MSFC Section 3404.2.9.6.6 shall be provided to prevent the overfill of
the storage tank.
6.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code.
6.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
HUGHES ASSOCIATES, INC.
Wentz Associates,Inc. Phone: (952)831-1180
7225 Ohms Lane,Suite 160 Fax: (952)831-2179
Edina,Minnesota 55439 E-Mail:info@wentzassoc.com
Over 30 Years of Consulting Engineering Service
MEMORANDUM
TO: Seth Peterson
FROM: Tom Wentz
DATE: June 4, 2008
RE: Prior Lake WTF
SUBJECT: Ventilation Modification—Generator Room
The following modification is in response to meet the revised ventilation criteria in the Generator
Room.
Revise the control of the motorized dampers in the Generator Room as indicated below:
E. GENERATOR ROOM VENTILATION SYSTEM:
Motorized dampers, MD-7 at the intake louver WL-10, motorized dampers, MD-8 at the
exhaust louver WL-11 and by-pass recirculation dampers MD-9.
Normally open, 2-position motorized dampers, MD-7, at intake louver WL-10 shall fully
open whenever the generator is started and shall remain open until the generator is shut
down. Dampers shall fully close when the generator is shut-down. Division 16 will
provide a set of auxiliary contacts at the generator for interlocking.
Additionally the normally open, 2-position motorized dampers, MD-7, at intake louver
J1/4)` , A 4q(,W - l all fully open whenever receiving an "Energize"signal from ,�ro.
n time clock /nd shall remain open until no longer receiving the time clock signal at
whic time the dampers shall fully close.
}"Y` e Motorized dampers, MD-8, at the exhaust louver, WL-11, shall consist of four(4)
normally open, 2-position dampers and four(4) normally closed modulating dampers.
11 The four, 2-position motorized dampers at the exhaust wall louver WL-11 shall fully
open whenever the generator is started and shall remain open until the generator is shut
down. Dampers shall fully close when the generator is shut-down. Division 16 will
provide a set of auxiliary contacts at the generator for interlocking.
Additionally the four(4)normally open, 2-position motorized dampers, MD-8, at
exhaust louver WL-11 shall fully open whenever receiving an "Energize"signal from
a programmable time clock and shall remain open until no longer receiving the time
clock signal at which time the dampers shall fully close.
The four(4) modulating motorized dampers at exhaust louver WL-11 and the by-pass
dampers, MD-9 shall modulate in opposition to each other as dictated from a modulating
heating thermostat to maintain temperature set point, 80 degrees. On space temperature
rise above set point, the exhaust dampers shall modulate fully open and the by-pass
recirculation dampers fully closed. As temperature falls below set point, the exhaust
dampers shall modulate closed and the by-pass recirculation dampers shall modulate
open.
The programmable time clock and interlock with the intake and exhaust dampers shall
be furnished and installed by the T.C. Contractor.
All interlocks, damper actuators, thermostats and control wiring to be furnished and
installed by the T.C. Contractor. T.C. Contractor to coordinate power source tie-in
location with Division 16.
HUGHES ASSOCIATES, INC.
FIRE SCIENCE & ENGINEERING
Water Treatment Facility
Prior Lake, MN
March 3, 2008
Hazardous Materials Technical Opinion Report
Prepared for:
BOLTON&MENK,INC.
12224 Nicollet Ave.
Burnsville, MN 55337
15170 North Point Drive,Rogers,MN 55374-8666 • Phone 763-428-4170 ■ Fax 763-428-4972 ■ www.haifire.com
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 1
1.0 INTRODUCTION
Bolton & Menk, Inc. contracted Hughes Associates, Inc. (HAI) to prepare a Hazardous Materials
Technical Opinion Report in compliance with MSBC (IBC) Section 414.1.3 for the Water
Treatment Facility(WTF) located in Prior Lake, MN. The purpose of this report is to identify the
applicable code requirements related to the proposed storage and use of hazardous material at
Prior Lake WTF to assist the City of Prior Lake in their review of the project.
2.0 APPLICABLE CODES
The following references were utilized in this analysis and as the basis for the requirements
found in this report.
1. 2003 Minnesota State Building Code (MSBC), International Building Code
(IBC), 2000 Edition as amended by the State of Minnesota
2. 2003 Minnesota State Fire Code (MSFC), International Fire Code (IFC), 2000
Edition as amended by the State of Minnesota
3. NFPA 430—Code for the Storage of Liquid and Solid Oxidizers (2004 Edition)
3.0 OCCUPANCY CLASSIFICATION
Chapter 3 of the Building Code requires that every building shall be classified by its use or the
character of its occupancy as set forth in Section 302.1. When hazardous materials are present
the occupancy of the building or an area of the building is dictated by the proposed quantity of
storage and/or use compared to the Maximum Allowable Quantity (MAQ) per control area found
in MSBC Tables 307.7 (1) & (2).
The bulk storage of hazardous materials is in three areas of the facility an include Chemical
Room (109), Fluoride Room (108), and the Generator Room (104). There is closed use of the
hazardous materials in areas outside these rooms, but based on the delivery system proposed,
pump sizes, safeguards/monitoring, and location of shut off valves, the quantities are
significantly below the (MAQ) and are not a concern in classifying the occupancy of the
building.
Below is a summary of the proposed storage by location, and the classification of the hazardous
materials. All of the hazardous materials are liquids and reported in gallons.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 2
Chemical Room
• Sodium Hypochlorite (15% solution) - 2,365 gallons
[CORROSIVE]
• Sodium Permanganate (40% solution) - 905 gallons
[OXIDIZER CLASS 2, CORROSIVE, OTHER HEALTH HAZARD]
• Phosphate Solution (21% solution) - 175 gallons
[IRRITANT]
Fluoride Room
• Fluorosilicic Acid (25% solution) - 1,070 gallons
[CORROSIVE]
Generator Room
• Diesel Fuel - 1,200 gallons
[COMBUSTIBLE LIQUID CLASS II, IRRITANT]
To determine the proper occupancy classification each room was treated as a separate area and
reviewed against the MAQ. The tables below summarize this analisis.
Table 1: Chemical Room(109)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Corrosive 3,270 1,000 GAL
Liquid Oxidizer—Class 2 905 500 GAL
Liquid Irritant 175 NR GAL
Liquid Other Health Hazard 905 NR GAL
NR—Not Regulated
Table 2:Fluoride Room(108)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Corrosive 1,070 1,000 GAL
Table 3: Generator Room(104)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Combustible Liquid- Class II 1,200 240 GAL
Liquid Irritant 1,200 NR GAL
NR—Not Regulated
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 3
Based on the information above the rooms are classified by the MSBC as follows:
Chemical Room(109) Group H-3/H-4
Fluoride Room (108) Group H-4
Generator Room(104) Group H-3
4.0 CHEMICAL ROOM(GROUP H-3/H-4)
4.1 Construction
The Chemical Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with 3/4-hour doors or opening protection. Per
the drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight (MSFC 4004.1.5).
4.2 Egress
The Chemical Room is 565 SF and has an assumed occupant load of 2. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with two means of
egress, with one direct to the exterior. The egress for the room is within the allowable
150 ft travel distance.
4.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the storage of Oxidizers, the system shall also meet the
requirements of NFPA 430. Per NFPA 430 the storage must meet a design of 0.20
gpm/SF over a remote area of 3,750 SF. Therefore, based on the two requirements the
room is required to have a sprinkler design of 0.2 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 4
4.4 Fire Detection and Alarm
In addition to the standard requirements of the building and monitoring of the sprinkler
system, the Chemical Room requires automatic smoke detection due to the presence of
oxidizers per MSFC Section 4004.1.7.
Per MSBC Section 901.6.3, manual fire alarm, automatic fire-extinguishing and
emergency alarm systems in Group H occupancies shall be monitored by an approved
supervising station.
4.5 Emergency Alarm
An approved manual emergency alarm system shall be provided for the Chemical Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
2. Activation of an emergency alarm-initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
4.6 Ventilation
Per MSFC Section 2704.3, ventilation for the Chemical Room is required. A separate
ventilation systems for the room shall be designed as follows:
1. The system must be continuously running.
2. Mechanical ventilation shall be not less than 565 cfm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in a position adjacent to the
access door in an approved location. The switch shall be a break glass type and
labeled "VENTILATION SYSTEM EMERGENCY SHUTOFF".
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided with 800 cfm of continuous
exhaust.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 5
4.7 Spill Control and Secondary Containment
The Chemical Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 1,100 gallons and the sprinkler design (0.20 gpm/sf) the
total volume of the containment required is 3,360 gallons.
The drawings show the trench is currently design to contain 1,683 gallons, which does
not meet the minimum above.
4.8 Smoke and Heat Venting
The Chemical Room due to the presence of oxidizers is required by MSFC Section
4004.1.6 to have smoke and heat venting per MSFC Section 910. However, given the
size of the room and the fact that the 2007 MSBC/MSFC has removed the requirement
for smoke and heat venting as related to this room, HAI feels it would be acceptable to
not provide the smoke and heat venting required if acceptable to the City of Prior Lake.
4.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Chemical Room shall be in accordance with the following:
1. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
2. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
3. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a. The point of use.
b. The tank, cylinder or bulk source.
4. Manual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 6
5. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
6. Piping for sodium hypochlorite solution or sodium permanganate solution that has
a working pressure greater than 15 psi shall be provided with an approved means
of leak detection and emergency shutoff or excess flow control.
4.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
4.11 Incompatible Materials
The phosphate MSDS states to keep it away from strong base, so phosphate and
hypochlorite should be separated. The plan shows that these materials are to be separated
by 20 feet, which is in compliance with MSFC Section 2703.9.8 for incompatible
materials. It is also recommended that phosphate be provided with its own spill pallet or
other means of keeping the phosphate from spilling into the containment for the
hypochlorite solution.
The permanganate is a reasonably strong oxidizer, so you need to follow those rules. It
also should be kept away from acids, which the phosphate is a weak one and likely should
be separated. I did not see anything specific between the hypochlorite and permanganate
(but that doesn't mean it doesn't exist)
5.0 FLUORIDE ROOM(GROUP H-4)
5.1 Construction
The Fluoride Room is required to be separated from the remainder of the building by a 1-
hour occupancy separation (fire barrier) with 3/4-hour doors or opening protection. Per the
drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight(MSFC 3104.1.1).
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 7
5.2 Egress
The Fluoride Room is 180 SF and has an assumed occupant load of 1. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with one means of
egress direct to the exterior. The egress for the room is within the allowable 175 ft travel
distance.
5.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
5.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Fluoride Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3, manual fire alarm, automatic fire-extinguishing and
emergency alarm systems in Group H occupancies shall be monitored by an approved
supervising station.
5.5 Emergency Alarm
An approved manual emergency alarm system shall be provided for the Fluoride Room as
stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
4. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
5. Activation of an emergency alarm-initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
6. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
5.6 Ventilation
Per MSFC Section 2704.3, ventilation for the Fluoride Room is required. A separate
ventilation systems for the room shall be designed as follows:
1. The system must be continuously running.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 8
2. Mechanical ventilation shall be not less than 180 cfm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in a position adjacent to the
access door in an approved location. The switch shall be a break glass type and
labeled "VENTILATION SYSTEM EMERGENCY SHUTOFF'.
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided with 200 cfm of continuous
exhaust.
5.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 805 gallons and the required sprinkler design (0.20
gpm/sf) the total volume of the containment required is 1,525 gallons.
The drawings show the trench is currently design to contain 1,549 gallons, which meets
the minimum amount above.
5.8 Smoke and Heat Venting
Smoke and heat is not required for the Fluoride Room.
5.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Fluoride Room shall be in accordance with the following:
7. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
8. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 9
9. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a. The point of use.
b. The tank, cylinder or bulk source.
10. Manual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
11. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
12. Piping for Fluorosilicic Acid solution that has a working pressure greater than
15 psi shall be provided with an approved means of leak detection and emergency
shutoff or excess flow control.
5.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
5.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
6.0 GENERATOR ROOM (GROUP 11-3)
6.1 Construction
The Generator Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with 3/4-hour doors or opening protection. Per
the drawing the room is designed to be separated by 1-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12).
6.2 Egress
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 10
The Generator Room is 1,167 SF and has an assumed occupant load of 4. Per MSBC
Table 1014.1 the room is required to have two means of egress. The room is provided
with two means of egress, with one direct to the exterior. The egress for the room is
within the allowable 150 ft travel distance.
6.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the generator it is recommended that the design in this
area also meet the NFPA 37 requirements for Extra Hazard Group 1. Based on these 2
requirements the room should be designed for 0.30 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
6.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Generator Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3, manual fire alarm, automatic fire-extinguishing and
emergency alarm systems in Group H occupancies shall be monitored by an approved
supervising station.
6.5 Emergency Alarm
An approved manual emergency alarm system shall be provided for the Generator Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
2. Activation of an emergency alarm-initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
6.6 Ventilation
Per MSFC Section 3404.3.7.4 & 2704.3, ventilation for the Generator Room is required.
Either mechanical or natural ventilation is required. No specific ventilation was found in
the design and must be provided.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 11
6.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment was not shown in the design. The
option to use a double wall tank in lieu of the curbs, sills, drainage, etc. is allowed for this
application.
If a double wall tank is not used then a leakage alarm will be required per MSBC 415.2.6.
6.8 Smoke and Heat Venting
Smoke and heat is not required for the Generator Room.
6.9 Tank Construction
The design, fabrication and construction of tanks shall comply with NFPA 30. Each tank
shall bear a permanent nameplate or marking indicating the standard used as the basis of
design.
Tanks shall be provided with normal venting as required by MSFC Section 3404.2.7.3
and must meet the following:
1. Vent lines from tanks shall not be used for purposes other than venting unless
approved.
2. Vent-line flame arresters and venting devices shall be installed in accordance with
their listings. Use of flame arresters in piping systems shall be in accordance with
API 2028.
3. Vent pipe outlets shall be located such that the vapors are released at a safe point
outside of buildings and not less than 12 feet above the adjacent ground level.
Vapors shall be discharged upward or horizontally away from adjacent walls to
assist in vapor dispersion. Vent outlets shall be located such that flammable
vapors will not be trapped by eaves or other obstructions and shall be at least 5
feet from building openings or lot lines of properties that can be built upon.
Per MSFC Section 3404.2.7.4 Stationary, above-ground tanks shall be equipped with
additional venting that will relieve excessive internal pressure caused by exposure to
fires. Emergency vents shall not discharge inside buildings. The venting shall be installed
and maintained in accordance with Section 4.2.5.2 of NFPA 30.
Filling, emptying and vapor recovery connections to the tank in accordance with MSFC
3404.2.7.5.2 shall be located outside of buildings at a location free from sources of
ignition and not less than 5 feet away from building openings or lot lines of property that
can be built on. Such openings shall be provided with a liquid-tight cap which shall be
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 12
closed when not in use and properly identified. An approved means or method in
accordance with MSFC Section 3404.2.9.6.6 shall be provided to prevent the overfill of
the storage tank.
6.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code.
6.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
HUGHES ASSOCIATES, INC.
HUGHES ASSOCIATES, INC.
FIRE SCIENCE & ENGINEERING
Water Treatment Facility
Prior Lake, MN
March 3, 2008
Hazardous Materials Technical Opinion Report
Prepared for:
BOLTON&MENK,INC.
12224 Nicollet Ave.
Burnsville,MN 55337
15170 North Point Drive,Rogers,MN 55374-8666 • Phone 763-428-4170 • Fax 763-428-4972 • www.haifire.com
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 1
1.0 INTRODUCTION
Bolton&Menk, Inc. contracted Hughes Associates,Inc. (HAI) to prepare a Hazardous Materials
Technical Opinion Report in compliance with MSBC (IBC) Section 414.1.3 for the Water
Treatment Facility(WTF)located in Prior Lake,MN. The purpose of this report is to identify the
applicable code requirements related to the proposed storage and use of hazardous material at
Prior Lake WTF to assist the City of Prior Lake in their review of the project.
2.0 APPLICABLE CODES
The following references were utilized in this analysis and as the basis for the requirements
found in this report.
1. 2003 Minnesota State Building Code (MSBC), International Building Code
(IBC), 2000 Edition as amended by the State of Minnesota
2. 2003 Minnesota State Fire Code (MSFC), International Fire Code (IFC), 2000
Edition as amended by the State of Minnesota
3. NFPA 430—Code for the Storage of Liquid and Solid Oxidizers(2004 Edition)
3.0 OCCUPANCY CLASSIFICATION
Chapter 3 of the Building Code requires that every building shall be classified by its use or the
character of its occupancy as set forth in Section 302.1. When hazardous materials are present
the occupancy of the building or an area of the building is dictated by the proposed quantity of
storage and/or use compared to the Maximum Allowable Quantity(MAQ)per control area found
in MSBC Tables 307.7(1)& (2).
The bulk storage of hazardous materials is in three areas of the facility an include Chemical
Room (109), Fluoride Room (108), and the Generator Room (104). There is closed use of the
hazardous materials in areas outside these rooms, but based on the delivery system proposed,
pump sizes, safeguards/monitoring, and location of shut off valves, the quantities are
significantly below the (MAQ) and are not a concern in classifying the occupancy of the
building.
Below is a summary of the proposed storage by location, and the classification of the hazardous
materials. All of the hazardous materials are liquids and reported in gallons.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 2
Chemical Room
• Sodium Hypochlorite(15%solution)-2,365 gallons " `
[CORROSIVE]
• Sodium Permanganate(40%solution) -905 gallons''
[OXIDIZER CLASS 2, CORROSIVE, OTHER HEALTH HAZARD]
• Phosphate Solution(21% solution) - 175 gallons (,h„
[IRRITANT]
Fluoride Room
• Fluorosilicic Acid(25%solution) - 1,070 gallons G r 'J
[CORROSIVE]
Generator Room
• Diesel Fuel- 1,200 gallons
[COMBUSTIBLE LIQUID CLASS II, IRRITANT]
To determine the proper occupancy classification each room was treated as a separate area and
reviewed against the MAQ. The tables below summarize this analisis.
Table 1:Chemical Room(109)
PHYSICAL HAZARD DESCRIPTION STORAGE UNITS
STATE TOTAL
Liquid Corrosive,k:; 54s z 3,270 Sa,< 1,000 GAL
Liquid Oxidizer—Class 2 ,„iet6+ 905 < 500 GAL
Liquid Irritant ht.r. 1 v 175 NR GAL
Liquid Other Health Hazard 0 905 NR GAL
NR—Not Regulated
Table 2:Fluoride Room(108)
PHYSICAL HAZARD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Corrosive ,k zbs 1,070 t>t 1,000 GAL
Table 3:Generator Room(104)
PHYSICALHADD DESCRIPTION STORAGE MAQ UNITS
STATE TOTAL
Liquid Combustible Liquid-Class II 1,200 240 GAL
Liquid Irritant 1,200 NR GAL
NR—Not Regulated
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 3
Based on the information above the rooms are classified by the MSBC as follows:
Chemical Room(109) Group H-3/H-4
Fluoride Room(108) Group H-4
Generator Room(104) Group H-3
4.0' (GROUP 11-3/H-4)
4.1 Construction
The Chemical Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with 3/-hour doors or opening protection. Per
the drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight(MSFC 4004.1.5).
4.2 Egress
The Chemical Room is 565 SF and has an assumed occupant load of 2. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with two means of
egress, with one direct to the exterior. The egress for the room is within the allowable
150 ft travel distance.
4.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the storage of Oxidizers, the system shall also meet the
requirements of NFPA 430. Per NFPA 430 the storage must meet a design of 0.20
gpm/SF over a remote area of 3,750 SF. Therefore, based on the two requirements the
room is required to have a sprinkler design of 0.2 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 4
4.4 Fire Detection and Alarm
In addition to • stan• d requirements of the building and monitoring of the sprinkler
system, the elleitical Room l equire automa smoke detectionnclue to the presence of
oxidizers per ' ection 4004.1.7.
Per MSBC Section 901.6.3,fmanual_fire alarm automatic fire-extinguishing and
emergency alarm systems in Group H occupancies shall be monitored by an approved
supervising station.
4.5 Emergency Alarm
An approve. manual emergency alarm system shall be provided for the Chemical Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
C�,r St 1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
2. Activation of an emergency alarm4nitiating device shall sound a local alarm to
Ceti ; c !l""", alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
4.6 Ventilation
Per MSFC Section 2704.3, ventilation for th: . :hemical Roo is required. A separate
ventilation systems for the room shall be design.., . follow •
1. The system must b continuously tenni g. o‘p 0`1`• Sc �
2. Mechanical ventilation shall be not less th 565 fm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in.a position adjacent to the
access door in, approved 19cation. The switch shall be a break glass type and
IabeleeVENTILATION SYSTEM EMERGENCY SHUTOFF".
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided wit 800 c m of continuous
exhaust.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 5
4.7 r C trot and Secon Containment
The Chemic& Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 1,100 gallons and the sprinkler design (0.20 gpm/sf)the
total volume of the containment required is 3,360 gallons.
The drawings show the trench is currently design to contain 1,683 gallons, which does
not meet the minimum above. t' -tom'-k.._
4.8 Smoke and Heat Venting
.. The Chemical Room due to the presence of oxidizers is required by MSFC Section
4004.1.6 to have smoke and heat venting per MSFC Section 910. However, given the
size of the room and the fact that the 2007 MSBC/MSFC has removed the requirement
for smoke and heat venting as related to this room, HAI feels it would be acceptable to
nit provide the smoke and heat venting required if acceptable to the City of Prior Lake.
4.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Chemical Room shall be in accordance with the following:
1. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
2. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
3. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a. The point of use.
b. The tank, cylinder or bulk source.
anual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 6
5. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
6. Piping for sodium hypochlorite solution or sodium permanganate solution that has
a working pressure greater than 15 psi shall be provided with an approved means
of leak detection and emergency shutoff or excess flow control.
4.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
4.11 Incompatible Materials
The phosphate MSDS states to keep it away from strong base, so phosphate and
hypochlorite should be separated. The plan shows that these materials are to be separated
by 20 feet, which is in compliance with MSFC Section 2703.9.8 for incompatible
materials. It is also recommended that phosphate be provided with its own spill pallet or
other means of keeping the phosphate from spilling into the containment for the
hypochlorite solution.
The permanganate is a reasonably strong oxidizer, so you need to follow those rules. It
also should be kept away from acids, which the phosphate is a weak one and likely should
be separated. I did not see anything specific between the hypochlorite and permanganate
(but that doesn't mean it doesn't exist)
5.0 lettlYRIDE`ROOM (GROUP 11'4-4)
5.1 Construction
The Fluoride Room is required to be separated from the remainder of the building by a 1-
hour occupancy separation(fire barrier)with%-hour doors or opening protection. Per the
drawing the room is designed to be separated by 3-hr construction.
The floor of the room is required to be non-combustible construction (MSFC 2704.12)
and liquid tight(MSFC 3104.1.1).
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 7
5.2 Egress
The Fluoride Room is 180 SF and has an assumed occupant load of 1. Per MSBC Table
1014.1 the room may have one means of egress. The room is provided with one means of
egress direct to the exterior. The egress for the room is within the allowable 175 ft travel
distance.
5.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
5.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Fluoride Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3, gual fire ala) automatic fire-extinguishing and
emergency alarm systems in Group f-occupancies shall be monitored by an approved
supervising station.
5.5 Emergency Alarm
An appr anual emerency=stem shall be provided for the Fluoride Room as
stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
4. Emergency alarm-fftiating devices shall be installed outside of each interior exit
or exit access door.
5. Activation of an emergency alai-initiating device shall sound a local alarm to
C 0. `` alert occupants of an emergency situation involving hazardous materials, per
MSFC Section 270 :-9."'
6. Systemponents (equipment) shall be listed for the worst-case weather and
te�ature ranges to which the equipment will be exposed.
5. Ventilation
Per MSFC Section 2704.3, ventilation for the Fluoride Room is required. A separate
ventilation systems for the room shall be designed as follows:
1. The system must be continuously running.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 8
2. Mechanical ventilation shall be not less than 180 cfm for the room (based on 1
cfm/sq.ft. of floor area).
3. Exhaust and supply (make-up) air inlets should. be located to provide air
movement across all portions of the floor to prevent accumulation of vapors.
4. A manual shut off shall be provided outside the room in a position adjacent to the
access door in an approved location. The switch shall be a break glass type and
labeled"VENTILATION SYSTEM EMERGENCY SHUTOFF".
5. Exhaust ventilation shall not be recirculated within the room or building.
Based on a review of the design the room is provided with 200 cfm of continuous
exhaust.
5.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment appears to be provided via a depressed
trench with grating at the floor. The volume of the trench must be sized to contain the
spill from the single largest container in the room plus 20 minutes of sprinkler flow.
Based on the largest container of 805 gallons and the required sprinkler design (0.20
gpm/sf)the total volume of the containment required is 1,525 gallons.
The drawings show the trench is currently design to contain 1,549 gallons, which meets
the minimum amount above.
5.8 Smoke and Heat Venting
Smoke and heat is not required for the Fluoride Room.
5.9 Piping Systems
Piping, tubing, valves, fittings and related components used for hazardous materials in or
originating from the Fluoride Room shall be in accordance with the following:
7. Piping, tubing, valves, fittings and related components shall be designed and
fabricated from materials that are compatible with the material to be contained
and shall be of adequate strength and durability to withstand the pressure,
structural and seismic stress and exposure to which they are subject.
8. Piping and tubing shall be identified in accordance with ASME A13.1 to indicate
the material conveyed.
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 9
9. Readily accessible manual valves or automatic remotely activated fail-safe
emergency shutoff valves shall be installed on supply piping and tubing at the
following locations:
a. The point of use.
b. The tank, cylinder or bulk source.
10. Manual emergency shutoff valves and controls for remotely activated emergency
shutoff valves shall be identified and the location shall be clearly visible,
accessible and indicated by means of a sign.
11. Backflow prevention or check valves shall be provided when the backflow of
hazardous materials could create a hazardous condition or cause the unauthorized
discharge of hazardous materials.
12. Piping for Fluorosilicic Acid solution that has a working pressure greater than
15 psi shall be provided with an approved means of leak detection and emergency
shutoff or excess flow control.
5.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code. It is our opinion that although not specifically
required we feel that the monitoring equipment and controls for the pumps should be
provided with the same standby power as the required systems.
5.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
QQM (GROUP H-3)
y 6.1 Construction
\‘..):9(3°
.. 19' The Generator Room is required to be separated from the remainder of the building by a
1-hour occupancy separation (fire barrier) with '/4-hour doors or opening protection. Per
?..0%,
the drawing the room is designed to be separated by 1-hr construction.
The floor of the room is required to be non-combustible construction(MSFC 2704.12).
6.2 Egress
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 10
V--), The Generator Room is 1,167 SF and has an assumed occupant load of 4. Per MSBC
Table 1014.1 the room is required to have two means of egress. The room is provided
C.2;7,)41,"14:N'
with two means of egress, with one direct to the exterior. The egress for the room is
within the allowable 150 ft travel distance.
6.3 Automatic Sprinkler System
Automatic sprinkler protection is required for the room per MSBC 903.2.4.1. The design
of the system shall not be less than that required for Ordinary Hazard Group 2 over a
remote area of 3,000 SF. Due to the generator it is recommended that the design in this
area also meet the NFPA 37 requirements for Extra Hazard Group 1. Based on these 2
requirements the room should be designed for 0.30 gpm/SF over the entire room.
Based on a review of the existing design the sprinkler protection for the room is designed
for 0.15 gpm/sf and is not compliant with the above requirements.
6.4 Fire Detection and Alarm
There are no special fire alarm requirements for the Generator Room that would require
detection or similar additional protection.
Per MSBC Section 901.6.3, manual fire alarm, utom(atic fire-extinguishing and
emergency alarm systems in G p occupancies shall be monitored by an approved
supervising station.
6.5 imergency Alarm
An approved manual emergency alarm system shall be provided for the Generator Room
as stated in MSBC Section 414.7.1 and MSFC Section 2704.9.
1. Emergency alarm-initiating devices shall be installed outside of each interior exit
or exit access door.
(<04, 2. Activation of an emergency alarm-initiating device shall sound a local alarm to
alert occupants of an emergency situation involving hazardous materials, per
)‘r MSFC Section 2704.9.
3. System components (equipment) shall be listed for the worst-case weather and
temperature ranges to which the equipment will be exposed.
6.6 Ventilation
Per MSFC Section 3404.3.7.4 & 2704.3, ventilation for the Generator Room is required. -
Either mechanical or natural ventilation is required. No specific ventilation was found in
the design and must be provided. �,eJ Afety4.-
HUGHES ASSOCIATES,INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 11
6.7 Spill Control and Secondary Containment
The Fluoride Room requires some form of spill control and secondary containment or
drainage. Spill control and secondary containment was not shown in the design. The
option to use a double wall tank in lieu of the curbs, sills, drainage, etc. is allowed for this
application.
If a double wall tank is not used then a leakage alarm will be required per MSBC 415.2.6.
6.8 Smoke and Heat Venting
Smoke and heat is not required for the Generator Room.
6.9 Tank Construction
The design, fabrication and construction of tanks shall comply with NFPA 30. Each tank
shall bear a permanent nameplate or marking indicating the standard used as the basis of
design.
Tanks shall be provided with normal venting as required by MSFC Section 3404.2.7.3
and must meet the following:
1. Vent lines from tanks shall not be used for purposes other than venting unless
approved.
2. Vent-line flame arresters and venting devices shall be installed in accordance with
their listings. Use of flame arresters in piping systems shall be in accordance with
API 2028.
3. Vent pipe outlets shall be located such that the vapors are released at a safe point
outside of buildings and not less than 12 feet above the adjacent ground level.
Vapors shall be discharged upward or horizontally away from adjacent walls to
assist in vapor dispersion. Vent outlets shall be located such that flammable
vapors will not be trapped by eaves or other obstructions and shall be at least 5
feet from building openings or lot lines of properties that can be built upon.
Per MSFC Section 3404.2.7.4 Stationary, above-ground tanks shall be equipped with
additional venting that will relieve excessive internal pressure caused by exposure to
fires. Emergency vents shall not discharge inside buildings. The venting shall be installed
and maintained in accordance with Section 4.2.5.2 of NFPA 30.
Filling, emptying and vapor recovery connections to the tank in accordance with MSFC
3404.2.7.5.2 shall be located outside of buildings at a location free from sources of
ignition and not less than 5 feet away from building openings or lot lines of property that
can be built on. Such openings shall be provided with a liquid-tight cap which shall be
HUGHES ASSOCIATES, INC.
HazMat Technical Opinion Report
Prior Lake WTF
March 3,2008
Page 12
closed when not in use and properly identified. An approved means or method in
accordance with MSFC Section 3404.2.9.6.6 shall be provided to prevent the overfill of
the storage tank.
6.10 Emergency and Standby Power
Per MSFC Section 2704.7, the required mechanical ventilation system, emergency alarm,
and other electrically operated equipment required by the code for the Hazardous
Occupancies must be provided with a secondary, or standby, source of power in
accordance with the Electrical Code.
6.11 Incompatible Materials
No other hazardous materials are stored with the room, so no compatibility issues exist.
HUGHES ASSOCIATES, INC.
Wentz Associates,Inc. Phone: (952)831-1180
7225 Ohms Lane,Suite 160 Fax: (952)831-2179
Edina,Minnesota 55439 E-Mail:info@wentzassoc.com
Over 30 Years of Consulting Engineering Service
MEMORANDUM
TO: Seth Peterson
FROM: Tom Wentz
DATE: June 4, 2008
RE: Prior Lake WTF
SUBJECT: Ventilation Modification—Generator Room
The following modification is in response to meet the revised ventilation criteria in the Generator
Room.
Revise the control of the motorized dampers in the Generator Room as indicated below:
E. GENERATOR ROOM VENTILATION SYSTEM:
Motorized dampers, MD-7 at the intake louver WL-10, motorized dampers, MD-8 at the
exhaust louver WL-11 and by-pass recirculation dampers MD-9.
Normally open, 2-position motorized dampers, MD-7, at intake louver WL-10 shall fully
open whenever the generator is started and shall remain open until the generator is shut
down. Dampers shall fully close when the generator is shut-down. Division 16 will
provide a set of auxiliary contacts at the generator for interlocking.
Additionally the normally open, 2-position motorized dampers, MD-7, at intake louver
�� W - l all fully open whenever receiving an "Energize"signal from a,'ro:r,mma' e
'me clock ,nd shall remain open until no longer receiving the time clock signal at
pe.iwhic time the dampers shall fully close.
t#r3fi Motorized dampers, MD-8, at the exhaust louver, WL-11, shall consist of four(4)
E4tiP normally open, 2-position dampers and four(4) normally closed modulating dampers.
'0111-1t The four, 2-position motorized dampers at the exhaust wall louver WL-11 shall fully
open whenever the generator is started and shall remain open until the generator is shut
down. Dampers shall fully close when the generator is shut-down. Division 16 will
provide a set of auxiliary contacts at the generator for interlocking.
Additionally the four(4) normally open, 2-position motorized dampers, MD-8, at
exhaust louver WL-11 shall fully open whenever receiving an "Energize"signal from
a programmable time clock and shall remain open until no longer receiving the time
clock signal at which time the dampers shall fully close.
The four(4) modulating motorized dampers at exhaust louver WL-11 and the by-pass
dampers, MD-9 shall modulate in opposition to each other as dictated from a modulating
heating thermostat to maintain temperature set point, 80 degrees. On space temperature
rise above set point, the exhaust dampers shall modulate fully open and the by-pass
recirculation dampers fully closed. As temperature falls below set point, the exhaust
dampers shall modulate closed and the by-pass recirculation dampers shall modulate
open.
The programmable time clock and interlock with the intake and exhaust dampers shall
be furnished and installed by the T.C. Contractor.
All interlocks, damper actuators, thermostats and control wiring to be furnished and
installed by the T.C. Contractor. T.C. Contractor to coordinate power source tie-in
location with Division 16.
it
Page l of 2
Bob Hutchins
From: Bob Hutchins
Sent: Thursday, June 05, 2008 10:26 AM
To: 'Seth Peterson'
Subject: RE:
Seth,That sounds acceptable.Our inspectors will need to witness the system testing at the building finals.Thanks
❑x City
of
Prir Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Thursday, June 05, 2008 9:05 AM
To: Bob Hutchins
Subject: RE:
Bob,
It will be an operator set point on the PLC. We would typically set it up to be x minutes for every y
hours. The operator can input x and y. My initial thought is to open the vents once an hour to ensure a
complete air exchange.
Let me know if you have any further questions.
Regards,
Seth A.Peterson,P.E.
Environmental Engineer
Bolton & Menk,Inc.
12224 Nicollet Ave.
Burnsville,MN 55337
Ph: 952-890-0509
Fax: 952-890-8065
Cell: 612-803-5223
From: Bob Hutchins [mailto:BHutchins@CityofPRIORLAKE.com]
Sent: Thursday, June 05, 2008 8:55 AM
To: Seth Peterson
Subject: RE:
Seth,I have reviewed the document and accept it with the answering of one question:
1. At what time interval is being proposed for opening of the two damper sets?
Thanks
6/5/2008
Page 2 of 2
0 City
of
Prir Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Wednesday, June 04, 2008 4:41 PM
To: Bob Hutchins
Subject:
Bob,
Please see the attached memo regarding changes to the generator room exhaust dampers. This
change should allow for the required ventilation. Let me know if you see any issues with this,
otherwise we will progress towards this direction.
Regards,
Seth A.Peterson,P.E.
Environmental Engineer
Bolton & Menk,Inc.
12224 Nicollet Ave.
Burnsville, MN 55337
Ph: 952-890-0509
Fax: 952-890-8065
Cell: 612-803-5223
6/5/2008
•
Special Structural Testing and Inspection
! Program Summary Schedule .
Project Name ' Water Treatment Facility Project No. • M21.38412
Location City of Prior Lake.Minnesota Permit No.
•
Technical(2) Report
Description(3) Type of Inspector Frequency Assigned Firm(6)
Section Article (4) (5)
02220 1.3.A.1-8 Laboratory&Field Testing of Soil Technical I Periodic Braun Intertec
02220 2.2 Excavation Observations Technical II Periodic +Bolton&Monk,Ina
r 02220 2.4 Fill and Backfill Observation Technical 11 Periodic Bolton&Meng Inc.
02220 2.10 ' Soil Field Density Tests Technical I Periodic Braun Intertec
02140 1.1 Dowatering/OroundwaterD.rumentatLon . ..TechnicallI .. Periodic Bolton&Monis,Inc.
03100 1.3 Concrete Formwork Struc4urpl I Periodic Bolton&Menk,Inc.
03200 1.4 Reinforcing Steel Structural I Periodic LLS Engineers
Mee(office)
)
el
`
03300 1.4E Concrete Mix Design verification Technical I As Specified Bolton&Menk,Inc.
03300 I.5B Preparation and Tcohnical I As Specified Bolton&Monk,Inc.
3.3 Placement of Concrete
• 03300 LSC Concrete Testing Technical I. As Specified Braun Intertec
03300 3.4 Concrete Protection and Curing Technical I As Specified Bolton&Monk,Inc.
04150 3.2 Masonry Accessories Installation Technical II Periodic Bolton&Monk,Inc.
04220 2.1C Masonry Reinforcement Structural I . Periodic LS Engineers(office)
Bolton&Monk(field)
04220 3.3 Installation of Concrete Masonry Technical U Periodic Bolton&Menk,Inc.
05100 3.1 Structural Steel Inspection Structural I Periodic LS Engineers(office)
• Bolton&Monk(field)
Notes:This schedule shall be filled out and included in the Special Structural Testing and Inspection Program.
(1) Permit No.to be provided by the Building Official.
(2) Referenced to the specific technical scope section in the program.
(3) Use Descriptions per UBC Chapter 17,as adopted by Minnesota State Building Code.
(4) Special Inspector-Technical,Special Inspector-Structural
(5) Weekly,monthly,per test/Inspection,per floor,etc.
(6) Finn contracted to perform services.
ACKNOWLEDGMENTS
Bach appropriate representative shall sign below:
Owner: Finn:City of Prior Late.Minnesota Date:
Contractor 'a.. j Y( Firm:Rice Lake Construction Orpup Date: W'r)°i/o 3-
Bngineer.:1i. 'r.M. Firm:)3olton&Meek.Inc. Date.. 'u- •
SBR: Zia��/,eir' Firm:LS Engineers Date• =-'-o
SI- 417.1M1.. : i 4 i Finn:Bolton %Monk.Inc. Date: g'0 .
T 7i Firm:Draun Warts . Date: 1,13ifi .4111111 FIrm: Date:
If requested by engineer/architect of record or building official,the individual names of all prospective special inspectors and the work
they intend to observe shall be identified. •
Legend: SER-Structural Engineer of Record SI-T-Special Inspector-Technical TA-Testing Agency
SI-S-Special Inspector-Structural n
nnF Fabricator
Acce ted for the Building Department By • ki0 4/►� '''� Date b/l to o 1
P ,
O:1i'RX 2l38412SPSSTLDOC
,604 BOLTON Si. M N K
m0 Consulting Engineers & Surveyors
12224 Nicollet Avenue • Burnsville, MN 55337
Phone (952) 890-0509 • Fax(952) 890-8065
www.bolton-menk.com
Letter of Transmittal
Date: March 27, 2009
Project No.: M21.038412
TO: Nate Briese ❑ Click here to select UPS option
City of Prior Lake ❑ Click here to select Fedex option
4646 Dakota Street SE ❑ Regular Mail
Prior Lake, MN 55372 ❑ Client Pick-up
X Hand Carry
❑ Fax
RE: Water Treatment Facility Site AsBuilts ❑ Fax/Send
WE ARE ENCLOSING: 3-copies of the Water Treatment Facility Site AsBuilts
FOR YOUR: ❑ Review ❑ Records ❑ Approval ❑ Distribution ❑ Information
X Use as Requested ❑ Please Return Corrected Prints
REMARKS:
Cc:
Robert Hutchins,City of Prior Lake
Craig Eldred, City of Prior Lake By'
Seth Peterson, Bolton &Menk, Inc.
Matt Sigrist, RLCG
C:\Users\kellyya\Documents\Prior Lake\AsBuilts Letter.doc
DESIGNING FOR A BETTER TOMORROW
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m x12224 Nicollet Avenue • Burnsville, MN 55337
Phone (952) 890-0509 • Fax (952) 890-8065
www.bolton-menk.com
March 27,2009
Mr.Robert D.Hutchins,Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake, MN 55372
Re: Water Treatment Facility
BMI Project No.M21.038412
Dear Mr. Hutchins:
This letter shall serve as a certification letter of the inspections for the above referenced facility.
The process piping and equipment was installed in accordance with the plans and specifications.
Manufacturer representatives were on-site for start-up and training for the new pieces of equipment.
The cast-in-place concrete slabs, footings and walls,masonry walls and pre-cast roof/floor planks were
constructed and created as per the plans and specifications. The cast-in-place concrete was tested
throughout the project and the test results met or exceeded the required specified strength. In addition,
soil density testing was also performed throughout the project and these test results also met or exceeded
the required specified strength.
The structural engineer reviewed and approved shop drawings for reinforcing steel,pre-cast planks and
miscellaneous metals,and all items were installed according to the shop drawings and the plans and
specifications.
If you need additional information,or have any questions regarding this project,please feel free to give
me a call.
Sincerely,
c? viiiiBOLTON&MEN -
�
Seth A. Peterson, ' .E.
Project Manager
cc: Steve Albrecht,Public Works Director
Craig Eldred,Utility Supervisor
Kelly Yahnke,Bolton&Menk, Inc.
G:\PLAK\M2138412\corres\bldg official letter.doc
DESIGNING FOR A BETTER TOMORROW
Bolton&Menk is an equal opportunity employer.
•
Special Structural Testing and Inspection
Program Summary Schedule
Project Name ' Water Treatment Facility Project No. • M21.38412
Location City of Prior Lake,Minnesota Permit No.
•
Technical(2) Report
Description(3) Type of(4) (5)Frequency y Assigned Finn(6)
Section Article
02220 1.3.A.1-8 Laboratory&Field Testing of Soil Technical I Periodic Braun Intertec
02220 2.2 Excavation Observations Technical II Periodic Bolton&Monk,Inc.
02220 2,4 Fill and Backfill Observation Technical II Periodic Bolton&Menk,Ina
02220 2.10 Soil FIeld Density Tests Technical I Periodic Braun Intertec
02140 1.1 Dowatering/Groundwaterpocumentation . ..Technical II Periodic Bolton&Monk,Inc.
03100 1.3 Concrete Formwork Structural I Periodic Bolton&Menk,Inc.
03200 1.4 Reinforcing Steel Structural I Periodic LS Engineers(office)
Bolton&Menk(field)
03300 1.42 Concrete Mix Design verification Technical I As Specified Bolton&Manic,Inc.
03300 I.5B Preparation and Technical I • As Specified Bolton&Manic,Inc.
3.3 Placement of Concrete
03300 1.SC Concrete Testing Technical I As Specified Braun Intertec
03300 3.4 Concrete Protection and Curing Technical I As Specified Bolton&Monk,Inc.
04150 3.2 Masonry Accessories Installation Technical II Periodic Bolton&Menk,Inc.
04220 2.1C Masonry Reinforcement Structural I . Periodic LS Engineers(office)
Bolton&Menk(field)
04220 3.3 Installation of Concrete Masonry Technical II Periodic Bolton&Menk,Inc,
05100 3.1 Structural Steel Inspection Structural I Periodic LS Engineers(office)
• Bolton&Monk(field)
Notes:This schedule shall be filled out and included in the Special Structural Testing and Inspection Program.
(1) Permit No,to be provided by the Building Official.
•
(2) Referenced to the specific technical scope section in the program.
(3) Use Descriptions per UBC Chapter 17,as adopted by Minnesota State Building Code.
(4) Special Inspector-Technical,Special Inspector-Structural
(5) Weekly,monthly,per test/inspection,per floor,etc.
(6) Firm contracted to perform services.
ACKNOWLEDGMENTS
Bach appropriate representative shall sign below:
Owner: Firm:City of Prior Lake jiiinnesota Date:
Contractor !e Firm:JUce Lake Construction Group Date: 75'[9/07
Engineer.:ffirnAff�
� Firm:Dolton&Menk.Inc. Date...; !}u ••
SER: I/Z�yf/1'f Firm:1.3 Engineers Date: -
SI- Finn:Bolton&Menk.Inc. Date: g-101/Y .
T Firm:Draun Intertgc . Date: 9/A/b7,
Finn: Date:
If requested by engineer/architect of record or building official,the individual names of all prospective special inspectors and the work
they intend to observe shall be identified.
Legend: SER-Structural Engineer of Record SI-T...Special Inspector-Technical TA—Testing Agency
SI-S—Special Inspector-StructuralnF Fabricator
Accepted for the Building Department By • KD Date b71&/°
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Page 1 of 4
. ,i PRION,
/ti 4646 Dakota Street S.E.
U = g�1i �7P.ilke, MN 55372-1714
ob Hutchins
ESo'tP
Monday, February 23,2009 2:50 PM
To: Paul Baumgartner
Subject: FW:WTF final inspections
fyi
ems.
Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Bob Hutchins
Sent: Friday, February 20, 2009 4:37 PM
To; 'Seth Peterson'
Cc: Craig Eldred; Kelly Yahnke; Craig_Habighorst@ricelake.org; matt sigrist@ricelake.org;
Paul Baumgartner
Subject: RE: WTF final inspections
Seth, In response to our phone conversation this afternoon, the following are items
that we discussed pertaining to your email below:
1. We anticipate the electrical inspector's comments early next week and seek
his comfort level of the proposed production/testing of the facility.
2. The only known correction item on the fire suppression system at this time
is the sprinkler heads under the stairs. During our inspection of the system,
items unknown to us now may be discovered;the sprinkler contractor is
experienced at dealing with any unexpected problems.
3. The plumbing monometer test can be completed at anytime before turning
the building over to the City.
4. In regards to the smoke detectors, emergency and manual fire alarms in the
Chemical room;manual fire and emergency alarms in the fluoride room and
generator room, all are required per the MN State Fire Code and are
included in the Hazardous Materials Technical Opinion Report prepared by
Hughes Associates,Inc. dated March 3, 2008. You had indicated that the
fire alarm panel may not support the required number of points but the
SCADA system may be able to temporarily be set up to report a water flow
on the fire suppression system. We would accept either the temporary
SCADA or permanent fire alarm panel for the monitoring the fire
suppression system.
I hope this represents today's phone conversation. If there are any questions give
me a call. Thank you
www.cityofpriorlake.com
2/23/2009 Phone 952.447.9800 / Fax 952.447.4245
Page 2 of 4
O� PRIp�
ti 9 4646 Dakota Street S.E.
U Prior Lake, MN 55372-1714
INNESO�P rt'
fet
Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Friday, February 20, 2009 11:34 AM
To: Bob Hutchins
Cc: Craig Eldred; Kelly Yahnke; Craig_Habighorst@ricelake.org; matt_sigrist@ricelake.org
Subject: RE: WTF final inspections
Bob,
Based on our phone discussion earlier today, following is a summary of our discussion.
I noted that the electrical inspector will be on-site on Monday. He may not provide
anything in writing but he will call your department after his visit. Regarding the fire
suppression system,you noted that after your site visit on Wednesday of this week,the
only item remaining was to place the correct sprinkler heads under the mezzanine stairs
and then the system would be ready to do the various tests. It sounds as if the fire sprinkler
contractor is already aware of what they need to do. I will make sure that the contractor
gets the heads switched out and gets the remainder of the system ready for testing.
We discussed that completing the final inspections for occupancy (HVAC,plumbing, etc.)
will occur in steps and the contractor will need to coordinate these items through your
department. You did mention that you'd like to get the plumbing manometer testing done
in the near future.
You noted that you will be out of the office next week and Paul(direct phone-952-447-
9853)from your department will be available.
Let me know if you have any comments/questions on the above.
Enjoy your vacation!
Seth A. Peterson, P.E.
Bolton& Menk,Inc.
From: Bob Hutchins f mailto:BHutchins@CityofPRIORLAKE.com]
Sent:Thursday, February 19, 2009 8:35 AM
To: Seth Peterson
Cc: Craig Eldred; wlusian@comcast.net
Subject WTF final inspections
z.ction Department would like to ensure that two of the life safety systems of the facility be code compliant before starting the
ELECTRICAL: Approval of an electrical inspection that items are Code compliant. Walt Lusian the State
www.cityofpriorlake.com
2/23/2009 Phone 952.447.9800 / Fax 952.447.4245
Page 3 of 4
• PRION
4646 Dakota Street S.E.
X Prior p .ke, MN 537 -1 4
■ , 1 • 1to i- . -. . . , , , . . .. .. - . ., . . - - - - - -.--- _
•
stated that the last inspection was conducted on October 21, 2008. A partial final for the equipment
'tJNNEso'vP that is proposed to be operated is possible.
FIRE SUPPRESSION/CONTROL:
1. Sprinkler Flow final
2. Monitored/Turn around test.
3. Fire Alarm Test
4. Smoke and Fire Dampers Operation
5. Exit and Emergency Lighting
6. Smoke/Heat Detectors
7. HVAC Duct Detectors
8. PIV operational
A partial final inspection of the fire suppression system is also possible.
The following items are required to be completed before the occupying of the building or turning the
building over to the owner:
HVAC:
1. Ventilation Operational
2. Electrical connections
Gas Line Tests
4. Final Inspection
. 5. Balancing Report
PLUMBING:
1. Monometer testing
2. Bacteria Tests for drinking fountains
HANDICAP:
1. Signage
2. Lavatories and grab bars
3. Entrance
STRUCTURE:
1. Walk Through
a. Special Inspections of Structural Framework with Final Report
b. Labeled Fire Doors
c. Glass,Doors,Hardware
alk
Firestoppin
EXITS:
Open and Unobstructed
PARKING LOT/CURBS:
Handicap Signs
Handicap Access
Silt Control or Final Grade Inspection from Engineering Dept.
ENGINEERING DEPARTMENT SIGNS OFF:
All Improvements complete including asphalt wear course
As-builts received and approved
Utilities tested including bacteria testing
Water conveyance
COMMUNITY DEVELOPMENT/NATURAL RESOURES DEPARTMENT SIGN OFF
TEMPORARY CERTIFICATE OF OCCUPANCY
LENT CERTIFICATE OF OCCUPANCY
www.cityofpriorlake.com
2/23/2009 Phone 952.447.9800 / Fax 952.447.4245
Page 4 of 4
I
PRjO�
4646 Dakota Street S.E.
M Prior Lake, MN 55372-1714
I hope that this clarifies our request.I believe that you agreed that the inspection of the electrical
rliINNEso`�P system and the testing of the fire suppression system with the notification component are warranted.
If there are any questions call me at 952-447-9851.Thank you
f0V
Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sigh up now.
www.cityofpriorlake.com
2/23/2009 Phone 952.447.9800 / Fax 952.447.4245
• Page 1 of 2
Bob Hutchins
From: Bob Hutchins
Sent: Thursday, June 05, 2008 10:26 AM
To: 'Seth Peterson'
Subject: RE:
Seth,That sounds acceptable.Our inspectors will need to witness the system testing at the building finals.Thanks
Lx City
of
Prir Robert D.Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Thursday, June 05, 2008 9:05 AM
To: Bob Hutchins
Subject: RE:
Bob,
It will be an operator set point on the PLC. We would typically set it up to be x minutes for every y
hours. The operator can input x and y. My initial thought is to open the vents once an hour to ensure a
complete air exchange.
Let me know if you have any further questions.
Regards,
Seth A.Peterson,P.E.
Environmental Engineer
Bolton & Menk,Inc.
12224 Nicollet Ave.
Burnsville, MN 55337
Ph: 952-890-0509
Fax: 952-890-8065
Cell: 612-803-5223
From: Bob Hutchins [mailto:BHutchins@CityofPRIORLAKE.com]
Sent: Thursday, June 05, 2008 8:55 AM
To: Seth Peterson
Subject: RE:
Seth,I have reviewed the document and accept it with the answering of one question:
1. At what time interval is being proposed for opening of the two damper sets?
Thanks
6/5/2008
Page 2 of 2
0 City
of
Prir Robert D. Hutchins
Building Official
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Wednesday, June 04, 2008 4:41 PM
To: Bob Hutchins
Subject:
Bob,
Please see the attached memo regarding changes to the generator room exhaust dampers. This
change should allow for the required ventilation. Let me know if you see any issues with this,
otherwise we will progress towards this direction.
Regards,
Seth A.Peterson,P.E.
Environmental Engineer
Bolton &Menk,Inc.
12224 Nicollet Ave.
Burnsville, MN 55337
Ph: 952-890-0509
Fax: 952-890-8065
Cell: 612-803-5223
6/5/2008
Page 1 of 2
Bob Hutchins
From: Bob Hutchins
Sent: Tuesday, April 29, 2008 8:38 AM
To: 'Seth Peterson'
Subject: RE: WTF
Seth,A couple of questions on the Field Order No.9:
1. Attachment 9.1: What is the dimensional length of the Chemical Room Containment trench legs?
2. Attachment 9.4: What is the dimensional height of the Generator Room Containment trench?
3. Hazardous Materials Technical Opinion Report item 4.1: The Chemical Room floor is required to be liquid tight not
only by the Sodium Hypochlorite and Sodium Permanganate but also by the Phosphate Solution,how is this to be
achieved?
4. Hazardous Materials Technical Opinion Report item 5.1:The Fluoride Room floor is required to be liquid tight,how
is this to be achieved? /_,
Thanks //1/4)/ /L-�(/ l� 71,6 - 66" 4,,r,
4/43
e _ A6 191 --,1(2 . A4, -r(1-
-77/.013 ,� 421,6 6-4165
'�r-"` Robert D. Hutchins ��
Building Official GOA aK(A)G11y
City of Prior Lake
4646 Dakota Street SE
Prior Lake,MN 55372
952.447.9851 Fax 952.440.4263
City Email Updates.Sign up now.
Original Message
From: Seth Peterson [mailto:sethpe@bolton-menk.com]
Sent: Monday, April 28, 2008 11:50 AM
To: Bob Hutchins
Subject: WTF
Bob,
Attached is a Field Order addressing the chemical room issues and also some issues with the generator
room. The containment trench in the chemical room gives us the required amount of storage volume and
there are 6"curbs to keep any spill in the containment area only and will prevent it from going out the
door. This will make for a very usable area and allow City staff to properly operate and maintain the
chemical feed equipment.
Please feel free to give me a call with any questions.
Regards,
Seth A.Peterson,P.E.
Environmental Engineer
Bolton&Menk,Inc.
12224 Nicollet Ave.
Burnsville,MN 55337
Ph: 952-890-0509
5/7/2008