Post on 30-Jul-2018
MEETING MINUTES
MEETING: Castroville WWTP Capacity Expansion Project – CVL14259
PROJECT: Pre-75% Submittal Review Workshop with Design Team
(FNI) and CMAR (Garney)
RECORDED BY: Jackie McMahon
DATE: January 27, 2016
LOCATION: Dallas – Dallas Mavericks
Ft. Worth - Freese
Austin – Colorado River
San Antonio - Alamo
ATTENDEES: City of Castroville Freese and Nichols (FNI) Garney
Larry Heinrich Trooper Smith
John New
Gennady Boksiner
Coby Gee
Michael Sherer
Michael Robertson
John Manning
Nathan Light
Curtis Spraggins
Jason Cocklin
Jackie McMahon
Brent Millar
Mike Gardner
Marcus Grace
Scott Setter
Wade Pierpoint
David Farkas
The following reflects our understanding of the items discussed during the subject meeting. If you do not
notify us within five working days, we will assume that you are in agreement with our understanding.
Action Items and Decisions made are summarized below. For a more detailed record of the meeting,
continue on to the third table on page 6.
DECISIONS MADE
WHAT WHO
1. This meeting is to be considered the official kick-off meeting between
the CMAR, Design Team and City. John N.
2. A rotating fine screen will remain the specified equipment for the
headworks. Gennady
3. The approximate volume of sludge to be removed from the basins
before demolition will be included at a note in the plans and in the bid
form for a more accurate bid estimate.
All
4. The 10” line abandoned in place will be temporary plugged during
construction. The 18” line abandoned in place will be hot tapped
during construction.
All
5. Demolished concrete will be reused wherever possible to minimized
hauling and disposal costs. All
CMAR Workshop
January 27, 2016
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DECISIONS MADE
WHAT WHO
6. If possible, KFA to use a temporary line for the 2nd influent line during
construction. All
7. The electrical building is to remain in the same location. All
8. The use of pre-cast concrete for the construction of the administration
building is acceptable. Larry
9. Type 304 material is acceptable to use instead of Type 316 stainless
steel for all new unistrut, anchors, support systems and fastening
hardware at all locations except the chlorine contact basin.
John N.
10. Aluminum stairs are acceptable for all applications, providing final
approval from Michael R. John N./Larry
11. Concrete will be used for the construction of the secondary clarifier
baffles. Larry
12. Hollowed metal doors are not acceptable, since they will rust out. Nathan
13. Thrust blocking will be provided for gravity pipes and restraint joints
will be provided for pressurized pipes. All
14. The pour temperature of the concrete will be adjusted to 95/100°F
with the use of a high range water reducer. Michael R.
15. Garney will produce Division 01 specifications, which FNI will cross
check before pertinent submittals. Trooper/Mike
16. Garney will produce a pre-bid package for process equipment,
meaning pertinent FNI technical specs will be developed and finalized
prior to 100% design.
All
17. At 75% design workshop with City and CMAR, review equipment
vendors to move toward a final decision. Trooper
18. A regular weekly or bi-weekly meeting will be held between Design
Team, City, and CMAR representatives to discuss project progress and
action items.
All
ACTION ITEMS
WHAT RELATED
COMMENT WHO WHEN
GENERAL ITEMS
1. Send Geotechnical Report to Garney for
reference. - Jackie 2/1/16
2. Confirm TCEQ permit discharge regulations
and discuss with Larry. -
Trooper/
Coby 2/5/16
3. Coordinate meeting with City to determine
what equipment operational variables are of
greatest importance. Use this information to
assist with development of Bid Packages.
- Garney 2/12/16
4. Update bid package list and put together a
list of items needed from FNI for bid
package development.
- Garney 2/12/16
CMAR Workshop
January 27, 2016
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ACTION ITEMS
WHAT RELATED
COMMENT WHO WHEN
5. Finalize technical specifications and
performance requirements relating to
equipment for bid package for internal QC.
- FNI 2/29/16
6. Develop a list of current manufacturer
quotes to send to Marcus for reference. - Jackie 1/29/16
7. Create Action Item List from meeting
comments to distribute to team. - Jackie 1/29/16
8. Develop updated project schedule to take
into account CMAR involvement. -
Trooper/
Jackie 1/29/16
9. Send Trooper weekly availability
(times/dates) to set up a regular meeting
between CMAR, City, and Design Team.
- Larry/Marcus 2/3/16
10. Develop a contact list to distribute to team. - Jackie 1/29/16
DESIGN/TECHNICAL ITEMS
11. Check with Ovivo to see if it is possible to
reduce the deck size at the BNR without
affecting the integrity of the splash guard.
AS-M1 Coby 2/5/16
12. Follow up with BNR basin equipment
manufacturers Ovivo and WesTech for
quotes to ensure Ovivo’s bid is
competitive. Discuss results with Marcus
Grace to determine next steps.
- Coby 2/5/16
13. Investigate possibility of raising the pump
motors out of the explosion zone of the
BNR basin (E-6, note 1), report to Garney,
and update plans as necessary.
AS-M3 Coby/Jackie 2/5/16
14. Pothole locations in the field to identify
how much sludge will need to be cleared in
the basins prior to demolition.
C-3 (1) Larry/Garney 2/10/16
15. Calculate sludge volume from potholing
results in Item 5 and include approximate
sludge volume to be removed in Note 3
sheet C-3 and in bid form for a more
accurate bid estimate.
C-3 (1) FNI 2/12/16
16. Determine salvageable equipment and
identify on plans. C-3 (1) FNI/City 2/12/16
19. Add note on sheet C-3 to temporary plug
10” abandoned in place line during
construction.
C-3 (2) FNI 2/12/16
20. Update plans/specs to show hot tap into
18” line by the existing chlorine contact
basin.
C-3 (2) FNI 2/12/16
21. Excavate/Investigate to determine what’s
in ponds to avoid unexpected costs/change
orders.
C-4 (1) Garney 2/10/16
CMAR Workshop
January 27, 2016
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ACTION ITEMS
WHAT RELATED
COMMENT WHO WHEN
22. Coordinate with City to determine where
to dispose of/reuse soils and demolished
concrete. Include disposal locations and
reuse instructions on plans.
C-4 (1) FNI 2/10/16
23. Determine thickness of walls and depth of
existing sludge drying beds for more
accurate bid estimate.
C-4 (2) Garney 2/10/16
24. Check with Ovivo to see if common wall
construction of the BNR and relocation of
the splitter box is possible.
C-5 (1) Coby 2/5/16
25. Contact KFA (Alan Draper) to see if it’s
possible to use a temporary line for the
second influent line from the lift station
during construction.
C-5 (1) Michael S. 2/5/16
26. Investigate available space around
administration building to see if enough
room is available to construct a larger, new
administration around the existing
structure.
C-5 (2) Coby/Jackie 2/10/16
27. Coordinate on use/desire for pre cast
concrete construction of the
administration building.
C-5 (2) Nathan/
Marcus 2/10/16
28. Maximize distance between secondary
clarifier and nearby 18-FE-PVC pipe to
increase available open area during
construction.
C-5 (4) Coby 2/12/16
29. For by-pass pumping purposes, verify
existence (or lack thereof) of two outlets
from the existing secondary clarifier and
verify if 10” line is still operable.
CD-M2 Larry/Garney 2/10/16
30. Coordinate preferred construction
materials for the chlorine building and any
resulting updates to the plans.
CH-A1 / CH-
M1
Nathan/
Marcus 2/10/16
31. Determine locations of Mechanical Details
1 and 2 (sheet SD-18) on site plan. SD-18 FNI 2/12/16
32. Verify elevation will not be an issue with
the sludge feed cavity pumps at the sludge
holding tank.
SH-M6 Gennady 2/12/16
33. Review all clarifier comments with
structural engineer and address as
necessary.
SC - ALL Jason 2/12/16
34. Determine need for pressure valves in
deep structures. - Michael R. 2/12/16
35. Coordinate on potential electrical
contractors. -
John M. /
Scott 2/29/16
CMAR Workshop
January 27, 2016
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ACTION ITEMS
WHAT RELATED
COMMENT WHO WHEN
36. Update Note 34 sheet G-2 to allow for type
304 pipe at all locations except chlorine
contact basin.
General Coby 2/12/16
37. Clarify use of thrust blocking and
restrained joints on gravity and pressure
pipes in Note 6 sheet G-2.
General Coby 2/12/16
38. Adjust specifications to reflect maximum
acceptable pouring temperature to be
95/100°F with use of high range water
reducer.
General Michael R. 2/12/16
39. Include spacing/location of joints in
drawings. General Michael R. 2/12/16
40. Coordinate concrete mix design for quality
control purposes and ensure same product
is used for the entire project.
- Garney 3/11/16
CMAR Workshop
January 27, 2016
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ITEM DESCRIPTION
1.
Review PACER/Introductions/Sign-In
• Introductions were made for the City of Castroville (City) representative
(Larry Heinrich), design team (FNI), and CMAR (Garney).
• Trooper reviewed the purpose of the meeting: for Garney to provide
comments on the pre-75% submittal which FNI will incorporate into the final
75% submittal to the City.
• John New confirmed that this meeting will count as the kick-off meeting with
the CMAR.
2.
BNR Deck Size (Comment AS-M1)
• Garney asked if the deck size of the BNR could be reduced to eliminate cubic
yards of concrete on the outside perimeter; decreasing schedule time and
saving money.
• Coby/Gennady noted that deck was the manufacturer’s (Ovivo) standard size
and served as a splash guard.
• Coby will contact Ovivo to see if reducing the BNR deck size is possible while
maintaining splash guard protection.
3.
BNR Basin Equipment Manufacturer(s)
• Garney inquired about the manufacturers contacted for the BNR basin
equipment, and noted their concern that relying on one manufacturer will
result in a high bid.
• Trooper noted FNI is focused on Ovivo, but also considering WesTech.
• Coby confirmed that right now, Ovivo is the sole source for the BNR
equipment and ensuring it works together; noting that Castroville has a
proprietary system that requires custom parts and that changing the
manufacturer will change the design.
• FNI team is currently investigating to see if the different systems from
different manufacturers can be bid in the same structure.
• Coby will follow up with manufacturers of BNR basin equipment (Ovivo and
WesTech) for quotes to ensure Ovivo’s bid is competitive. Coby will then
discuss findings and next steps with Marcus.
4.
Headworks Screen
• Marcus asked if FNI was set on using a rotating fine screen for the headworks.
• Gennady said yes; the rotating fine screen is ideal because it is one piece of
equipment (doesn’t require a washer, less expensive overall), very robust,
and ideal for the anticipated flow range.
• Decision made: Stick with specified rotating fine screen for the headworks.
• Larry mentioned he would like to sit down with the design team and go over
equipment options for the entire treatment plant.
• Trooper/Gennady to organize meeting with the City to discuss equipment
options, which will potentially include a tour of different sites with
equipment in place to discuss pros/cons with the operators.
5.
BNR Basin Motors (Comment AS-M3)
• Garney asked if it was possible to raise the motors out of the explosion zone
of the BNR basin (E-6 note 1).
• Coby/Jackie to investigate, report back to Garney, and update plans as
necessary.
CMAR Workshop
January 27, 2016
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6.
Demolition Plan (Comment C-3 (1) [Note 3 and 9])
• NOTE 3: Contractor shall de-water basins and clean out sludge/solids prior to
demolition.
o Garney noted that this item could prove to be a very expensive bid
item based on the wording and worried about the amount of sludge
in the basins, but that the site visit showed there actually wasn’t a lot
of sludge.
o Gennady stated that while the wording of the note might give the
impression that there will be a lot of sludge, it is still critical to
remove the sludge and clean the basins before demolition.
o Larry (City of Castroville) and Garney to pothole locations in the
field to see how much sludge is in basins.
o For additional reference, Jackie to send Geotech Report to Garney
for review.
o FNI to calculate sludge volume from field results and include the
approximate amount of sludge to be removed in Note 3 for a more
accurate bid estimate. The quantity calculated will also be included
in the bid form.
• NOTE 9: Salvage items for owner as indicated on plans or specs, otherwise
remove and dispose offsite.
o Garney asked FNI to identify items to be salvaged.
o FNI/City to coordinate on salvageable equipment and FNI to
incorporate in plans.
7.
Demolition Plan [Garney Comment C-3 (2)]
• Garney asked if the 10” line to be abandoned in place will have a valve or will
be filled.
• Coby confirmed that the 10” line is not currently used and already
abandoned.
• FNI will add a note to the plans (sheet C-3) to temporary plug the line in
question.
• The 18” line by the existing chlorine contact basin was also discussed. It has
no valve; and the decision was made to hot tap into the line. FNI will update
the plans and specs accordingly.
• Discussion shifted to the TCEQ outfall permit and whether or not discharge
was allowed to the river before reaching 0.7 MGD capacity. Trooper/Coby to
discuss the permit with Larry and confirm discharge regulations.
8.
Demolition Plan [Garney Comment C-4 (1)]
• Garney asked about the disposal location demolished concrete, and if it was
possible to reuse in some way to reduce hauling/disposal costs. The
possibility of lining the pond for bank stabilization was mentioned.
• Coby noted that there is old asphalt in the ponds. Garney to excavate and
determine what’s in ponds to avoid unexpected costs/change orders.
• FNI will discuss with the City to determine where to put/reuse demolished
concrete and soils, and will include on plans (general notes).
9.
Demolition Plan [Garney Comment C-4 (2)]
• Garney inquired for the depth of the existing decommissioned structure
(existing sludge drying beds).
• Trooper/Coby noted that there are no original drawings.
CMAR Workshop
January 27, 2016
Page 8 of 10
• Garney to determine the thickness of the walls and depth of existing sludge
drying beds for more accurate bid estimate.
10.
Site Layout [Garney Comment C-5 (1)]
• Garney asked if the second influent line from the proposed lift station is
included in this contract.
• Trooper responded that KFA is responsible for the line in question; which
Larry stated will be completed around March 2016.
• Discussion followed regarding connection to the KFA line, and ways to
maximize open space to allow for simplified construction and sequencing.
o Trooper noted the line could not be taken to the existing lift station,
since existing pumps could not handle the flow.
o Garney inquired if common wall construction could be used at the
BNR to increase open area. Gennady noted that common wall
construction, which necessitates relocating the splitter box, may
negatively impact hydraulics.
o Coby to talk with Ovivo and see if common wall construction of the
BNR and relocation of the splitter box is possible.
• The team decided the best plan of action would be for KFA use a temporary
line. Michael S. will contact KFA (Alan Draper) to see it’s possible to run a
temporary line so as to save money and make for easier construction.
11.
Admin/Elec Building [Garney Comment C-5 (2)]
• Garney asked if it was possible to move the electrical building and
administration building.
• Electrical Building
o Trooper noted that if the electrical building was moved, electrical
conduit cost would be increased.
o Electrical building to remain in same location.
• Administration Building
o Garney asked if possible to use pre-cast concrete, instead of masonry,
in construction for scheduling purposes. They outlined the possibility
of constructing the new building around the old, and demolishing the
old structure from the inside. The space required for this option is
about 3 ft. on each side.
o Larry confirmed the City is okay with using pre-cast concrete, but
would want the same façade/layout.
o Coby/Jackie to investigate space availability around the existing
admin building.
o Nathan/Marcus to coordinate on need for pre-cast concrete
construction.
12.
Site Layout [Garney Comment C-5 (4)]
• To increase available open area for construction, Coby will maximize the
distance between the secondary clarifier and nearby 18-FE-PVC pipe.
13.
Power [Garney Comment C-5 (5)]
• Larry confirmed the City is working on redirecting the necessary amount of
power to the park.
• No action additional action to be taken.
14.
Chlorine Contact Basin (Garney Comment CD-M2)
• Garney inquired if FRP or Masonry Baffles could be used instead of Cast in
Place concrete in the chlorine contact basin.
CMAR Workshop
January 27, 2016
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• Gennady noted that FRP baffles do not perform as well as concrete.
• Coby noted that the design team doesn’t know the , making concrete the
ideal for simplified specifications. Garney stated that if cast in place concrete
is used, sequencing of the chloring contact basin becomes a critical item.
• Discussion turned to construction sequencing and by-pass pumping options.
To get a better idea of the feasible bypass pumping options, Larry to check if
the existing secondary clarifier does indeed have two outlets. Larry/Garney
to field verify if 10” line is still operable.
15.
Chlorine Building (Garney Comment CH-A1/CH-M1)
• Garney asked if precast concrete could be used to construct the chlorine
building.
• Nathan noted that while this is possible, the building must be insulated to
meet code, which may increase costs. Garney stated their preference for pre-
insulated pre cast concrete.
• Nathan/Marcus to coordinate on preferred materials for the chlorine
building and any resulting updates to the plans.
16.
Mechanical Details (Garney Comment SD-18)
• Garney requested Details 1 (Typical Section Flexbase Road) and 2 (Heavy
Duty Typical Section Flexbase Road) of the SD-18 to be located on the site
plan where needed.
• FNI will locate and place details for 75% submittal to the City.
17.
Sludge Holding Tank (Garney Comment SH-M6)
• Gennady will verify that elevation is not going to be an issue with the sludge
feed cavity pumps at the sludge holding tank.
18.
Secondary Clarifier Comments (SC sheets)
• Garney asked if FRP launders would be acceptable.
o Larry confirmed that the City would like to stick with concrete.
• Garney inquired if pressure relief valves were necessary. Jason said the
pressure-relief valves were included in the drawings but still needs to
determine if they are needed. Michael R. confirmed that he also needs to
verify if pressure relief valves are needed in the deep structures.
• Jason will review clarifier comments with his structural engineer and
address as necessary. Michael R. will determine need for pressure valves in
deep structures.
• With 6” minimum of crushed limestone specified for the secondary clarifier
no. 1 gravel fill, Garney mentioned this would be an opportunity to use the
crushed concrete from demolition (discussed in above in item 8).
19.
Electrical Drawings
• On drawing E-12, Garney requested FNI eliminate the power panels due to
corrosion concerns.
• John M. responded the panels are not put inside chlorine building, and that
stainless steel will be used to address corrosion issues.
• John M. agreed with Garney’s manhole access comments.
• John M. agreed that there is no need for pre-submittal meetings, only if
crunched for time.
• John M. and Scott will coordinate on potential electrical contractors.
20.
General Drawings
• Garney asked if it would be acceptable to use type 304 instead of 316
stainless steel as specified in Note 34 sheet G-2. John N. responded that using
CMAR Workshop
January 27, 2016
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type 304 was acceptable for all locations but the chlorine basin. FNI will
update the note accordingly.
• Garney requested clarification of Note 6 on sheet G-2 that requires thrust
blocking or restrained joints at all fittings. Trooper stated the preference for
thrust blocking on gravity pipes considering the shifts caused by current and
future construction. Coby will clarify note 6 to specify thrust blocking to be
used on gravity pipes and restrained joints to be used for pressure pipes.
• Garney asked if it would be acceptable to use aluminum stairs for all
applications. John N. and Larry Heinrich gave the okay, providing approval
from Michael R.
• Garney asked if hollowed metal doors could be used instead of aluminum.
Nathan replied they could not, since hollowed metal doors will rust out.
Nathan also noted RFP doors would be unviable.
• In response to a query about time between concrete pours of construction
joints, Michael R. directed Garney to the concrete forming spec.
• Garney noted that specified max concrete pour temperature, 90°F, will be
very difficult and expensive to achieve and requested the max allowable
temperature be upped to 98°F. Michael R. agreed that if a high range water
reducer is used, a 95/100°F pour temperature is acceptable. Michael R. will
adjust pertinent specs to reflect this.
• Garney requested the spacing of construction joints, and the max horizontal
spacing, to be delineated. Michael R. clarified that the joints in question are
not construction joints but will put proposed joints in drawings
21.
Equipment Packages/Pre-Order
• Garney to sit down with City and determine what’s important to the City
(price, support, dependability, meet spec, maintenance, schedule and
delivery).
• Gennady inquired how the warranty will work if manufacturers providing
equipment so early; to which Garney responded that the warranty will be
addressed in bid documents to make clear what is expected.
• Garney will put together an equipment package and pre-order equipment.
Marcus will update the bid package list and put together a list of items
needed from FNI. Right now, the following needs have been identified:
o Finalized technical specifications and performance requirements
(Design team to develop per updated schedule).
o Current list of manufacturer quotes (Jackie to send to Marcus).
22.
General Items/Project Schedule
• Jackie to create Action Item List and distribute to team to track
incorporation of Garney’s comments and ensure project momentum is
maintained.
• Trooper/Jackie to develop an updated project schedule and distribute to
the team.
• Garney will produce Division 01 specs, which FNI will cross check.
• Garney will coordinate concrete mix design for quality control to ensure the
same product is used for the entire product.
• Marcus and Larry will send Trooper their weekly availability (times/days) to
schedule a regular meeting time.
• Jackie to develop a contact list to distribute to the team.