FY'26 Southslope Capital Equipment Replacements Addendum No. 1

Location:	Oklahoma
Posted:	Apr 1, 2026
Due:	Apr 10, 2026
Agency:	City of Tulsa
Type of Government:	State & Local
Category:	65 - Medical, Dental, and Veterinary Equipment and Supplies
Publication URL:	To access bid details, please log in.

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DATE:

April 1, 2026

Ms. Cindy Cantero

Water Pollution Control Section Manager

175 East 2nd Street, 13th Floor

Tulsa, Oklahoma 74103

RE: TMUA PROJECT NO. WPC 26-4, FY'26 SOUTHSLOPE CAPITAL EQUIPMENT REPLACEMENTS

SUBJECT: ADDENDUM 1 - 4/1/2026

Dear Ms. Cantero:

This Addendum 1 consisting of nine (9) items is, hereby, made a part of the Contract Documents to the

same extent as though it were originally included, therein, and shall supersede anything contained in

the Plans and Specifications with which it might conflict. Receipt of this Addendum 1 shall be denoted

in Bidder's Proposal. Failure to do so will result in the bid being deemed non-responsive.

1. Pre-Bid Conference Bidder Question #1

a. Question: "Will you please clarify the Basis of Award?"

b. Response: Refer to the Proposal, page P-2, paragraph titled "Basis of Award."

2. Pre-Bid Conference Bidder Question #2

a. Question: "Are bidders required to submit two printed copies of their Proposal?"

b. Response: No, submit one (1) printed hardcopy of your bid proposal forms.

3. Pre-Bid Conference Bidder Question #3

a. Question: "Are bidders required to submit an electronic flash drive with their Proposal?"

b. Response: No, do not submit an electronic flash drive.

4. Pre-Bid Conference Bidder Question #4

a. Question: "What is to be done with the existing electrical conduit and box located at the scum pit?"

b. Response: Remove and replace junction box and a portion of conduit run as shown in Addendum 1,

revised Sheet 4 and revised Sheet 5.

5. Pre-Bid Conference Bidder Question #5

a. Question: "Will the existing damper on the Odor Control Piping at the scum pit need to be reinstalled?

If so, this will require an additional pipe spool in order to get the attachment flange at the right

elevation."

b. Response: Yes, the existing damper shall be reinstalled. Add a PVC spool pipe as shown in Addendum

1, revised Sheet 5.

6. Pre-Bid Conference Bidder Question #6

a. Question: "The existing pressure gauges [on STP01 discharge and on STP02 discharge] are installed

on isolation rings. Are the new gauges to be installed on isolation rings as well? Do you have P&ID

drawings available of this area [of Digester 3&4]?

5300 S Elwood Ave, Tulsa OK 74107 | (918) 591-4482 | (918) 405-4907

Page 1

b. Response: Yes, install pressure gauges and switches on isolation rings to match the existing

configuration. And, yes, Owner will provide available information regarding existing equipment

during construction.

7. Refer to SHEET 4 - ADD. ALT. #1 SCUM PIT HATCH REPLACEMENT

a. Replace entire drawing with the attached drawing.

b. Revise C - DEMOLITION PLAN as shown on the revised drawing.

c. Add D - I/O CABLE PRESERVATION NOTES as shown on the revised drawing.

8. Refer to SHEET 5 - ADD. ALT. #1 SCUM PIT HATCH REPLACEMENT

a. Replace entire drawing with the attached drawing.

b. Revise B - SCUM PIT HATCH PLAN as shown on the revised drawing.

9. Refer to SHEET 7 - CC MAKE-UP AIR UNIT REPLACEMENT

a. Replace entire drawing with the attached drawing.

b. Revise B - EXISTING ROOF PLAN as shown on the revised drawing.

Sincerely,

Samuel H. Ray, P.E., S.E.

3/31/2026

5300 S Elwood Ave, Tulsa OK 74107 | (918) 591-4482 | (918) 405-4907

Page 2

VIEW LOOKING NORTHEAST

A PHOTO OF EXISTING SCUM PIT

REMOVE ELECTRICAL JUNCTION BOX.

SEE I/O CABLE PRESERVATION NOTES.

REMOVE AND PRESERVE ALL

HANDRAILS. DELIVER

HANDRAILS TO CITY OF TULSA

FOR STORAGE. CUT OFF

ANCHORS FLUSH WITH

CONCRETE.

REMOVE AND DISPOSE OF

ALL METAL COVER PLATES.

REMOVE HANDWHEEL, AND CUT

OFF EXTENSION ROD BELOW

HATCH.

REMOVE FRP ODOR CONTROL

GOOSENECK, AND DELIVER IT TO

CITY OF TULSA FOR STORAGE.

REMOVE CONDUIT

AS SHOWN AND

BACK TO WEST TO

VERTICAL BEND.

REFER TO I/O CABLE

PRESERVATION

NOTES.

C DEMOLITION PLAN

5 5/8"±

6"±

10'-1"±

9'-1"±

8'-1 3/4"±

5 5/8"±

6"±

INSIDE FACE

OF CURB

INSIDE FACE

OF PIT WALL

OUTSIDE FACE

OF CURB

PHOAT/O4

B EXISTING SCUM PIT PLAN

REMOVE FRP ODOR CONTROL DAMPER AND

1. THE EXISTING CONDUIT AND ELECTRICAL

180 PIPE BEND, AND PRESERVE THESE

JUNCTION BOX CONTAIN AN I/O CABLE

COMPONENTS FOR REINSTALLATION.

THAT IS IN SERVICE AND SHALL BE

PRESERVED.

2. COORDINATE THE SCHEDULING OF THIS

REMOVE AND DISPOSE OF ALL

HATCHES, PANELS AND FRAMES.

WORK WITH PLANT STAFF.

3. DISCONNECT CABLE FROM ITS TERMINAL

END IN CABINET RIO10 IN WEST PUMP

HOUSE.

4. WITHDRAW CABLE FROM CONDUIT AND

JUNCTION BOX TO FACILITATE DEMOLITION

OF CONDUIT AND BOX.

5. MAXIMUM TIME CABLE MAY REMAIN

DISCONNECTED IS TWELVE (12) HOURS IN

ONE DAY FROM 7:00AM TO 7:00PM.

6. SEE B/5 FOR CONDUIT AND JUNCTION

BOX REPLACEMENT.

REMOVE AND DISPOSE OF ALL

D SUPPORT FRAMING CONNECTED TO PIT

WALLS.

I/O CABLE PRESERVATION

NOTES

ALL WORK ON THIS SHEET IS

IN ADDITIVE ALTERNATE #1.

1 ADDENDUM 1 - ISSUED 4/1/2026

SHEET TITLE:

ADD. ALT. #1

SCUM PIT HATCH REPLACEMENT

PROJECT:

WPC 26-4 CAPITAL

EQUIPMENT REPLACEMENTS

OWNER:

CITY OF TULSA, OKLAHOMA

TULSA METROPOLITAN UTILITY AUTHORITY

ENGINEER:

SAMUEL H. RAY, P.E.

APPROVAL:

____________________________________

WPC SECTION MANAGER

ISSUE DATE:

FEBRUARY 12, 2026

SHEET NUMBER:

4 OF 11 SHEETS

BEAM CENTERLINE

6061 T6 ALUMINUM WIDE FLANGE

BEAM, DEPTH=6", WIDTH=6",

THICKNESS=0.240", WITH (2)-1/2" DIA.

STAINLESS STEEL HILTI HIT-HY 200

ADHESIVE ANCHORS AT EACH END

WITH 4 1/2" EMBEDMENT.

DETAIL

C/5

INSIDE FACE

OF CURB

INSIDE FACE

OF PIT WALL

BELOW

A SCUM PIT FRAMING PLAN

OUTSIDE FACE

OF CURB

TOP OF BEAM ELEVATION

SHALL MATCH TOP OF EXISTING

CONCRETE CURB ELEVATION.

HATCHES AND SAFETY

GRATE SYSTEM

ALUMINUM WIDE FLANGE BEAM

1/4"x5"x0'-10" REINFORCED

NEOPRENE BEARING PAD

EACH END OF BEAM

TOP OF CURB

OUTSIDE FACE OF CURB

EXISTING CONCRETE

PAVING

C SCUM PIT DETAIL

12"x12" WEATHERPROOF 316

STAINLESS STEEL JUNCTION BOX.

CONNECT TO EXISTING BURIED

VERTICAL CONDUIT AND TO NEW

HORIZONTAL CONDUIT.

ADD 8" SCH. 80 PVC SPOOL

PIPE TO RAISE 180 PIPE BEND

AND DAMPER UP TO FIT ON

NEW HATCH.

(4) HATCHES AS SHOWN WITH

INTEGRAL FALL PROTECTION

SAFETY GRATE BELOW EACH

HATCH, SPEC. 214.01

3'-9"

8" DIA. HOLE THROUGH HATCH

WITH 3/4" No. 9 STAINLESS STEEL

EXPANDED METAL MESH MOUNTED

TO UNDERSIDE OF HATCH.

1 1/2" I.D. ALUMINUM CONDUIT RUN FROM

NEW JUNCTION BOX TO WEST TO VERTICAL

BEND. MOUNT CONDUIT AT GROUND LEVEL

AND WITHIN 2" OF CONCRETE CURB. PULL

EXISTING I/O CABLE BACK THROUGH NEW

JUNCTION BOX AND NEW CONDUIT, AND

RECONNECT TO TERMINAL BLOCK IN

CABINET RIO10 IN WEST PUMP HOUSE.

1'-0"

INSIDE FACE

OF CURB

INSIDE FACE

OF PIT WALL

BELOW

B SCUM PIT HATCH PLAN

REINSTALL AND RECONNECT

FRP ODOR CONTROL DAMPER

AND 180 PIPE BEND.

(1) SOLID FIXED PANEL WITH

8" DIA. HOLE AT FRP ODOR

CONTROL FLANGE.

OUTSIDE FACE OF CURB

ALUMINUM FRAME SET ON

TOP OF EXISTING CONCRETE

CURB AND FASTENED WITH

(8)-1/2" DIA. STAINLESS STEEL

HILTI HIT-HY 200 ADHESIVE

ANCHORS WITH 4 1/2"

EMBEDMENT.

SHEET TITLE:

ADD. ALT. #1

SCUM PIT HATCH REPLACEMENT

PROJECT:

WPC 26-4 CAPITAL

EQUIPMENT REPLACEMENTS

OWNER:

CITY OF TULSA, OKLAHOMA

TULSA METROPOLITAN UTILITY AUTHORITY

ENGINEER:

SAMUEL H. RAY, P.E.

(1) SOLID FIXED PANEL

ALL WORK ON THIS SHEET IS

IN ADDITIVE ALTERNATE #1.

1 ADDENDUM 1 - ISSUED 4/1/2026

APPROVAL:

____________________________________

WPC SECTION MANAGER

ISSUE DATE:

FEBRUARY 12, 2026

SHEET NUMBER:

5 OF 11 SHEETS

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

FY'26 Southslope Capital Equipment Replacements Addendum No. 1

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