HomeMy WebLinkAbout _ 4.11(d)--Approve costs for RPP Natural Gas Pipeline Inspections Project GI �" Y C� F
� � �- ' � ° � � i � CITY OF REDDING
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REPORT TO THE CITY COUNCIL
MEETING DATE: July 15, 2025 FROM: Michael Webb, Public Works
ITEM NO. 4.ll(d) Director
***APPROVED BY***
ie ael � iiEali� oaks L)arector 7;'11242� t�s�a a �, ss � eF 7/3/202�
mwebb@cityofredding.org btippin@cityofredding.org
SUBJECT: 4.11(d)--Approve Increase to Project Cost for Redding Power Plant Nat�ural Gas
Pi eline Ins ections Pro'ect
Recommendation
Authorize and approve a $100,000 increase to the Redding Power Plant Natural Gas Pipeline
Inspections Project (Project), Bid Schedule No. 5563, to complete unforeseen conditions
identified during construction:
(1) Increase of $26,715 to the construction management budget, bringing the construction
management total to $45,715; and
(2) Increase of $73,285 to the construction contingency budget, bringing the construction
contingency budget to $101,285.
Fiscal Impact
The Redding Power Plant Natural Gas Pipeline Inspections Project (Project) is being funded by
the City of Redding Electric Utility (REI�. The $100,000 cost increase will bring the total
project costs amount to be $351,939.53 which is within the project approved budget of$450,000.
Current Requested Newly
Authorized Increase Authorized
Project Development $18,000 $0 $18,000
Contract $186,939.53 $0 $186,939.53
Contingency $28,000.00 $73,285.00 $101,285.00
Contract Admin., $19,000.00 $26,715.00 $45,715.00
Inspection, Testing
Total $251,939.53 $100,000.00 $351,939.53
Report to Redding City Council July 8, 2025
Re: 4.11(d)--Approve costs for RPP Natural Gas Pipeline Inspections Project Page 2
Alter�native Actzon
The City Council (Council) may choose not to approve the request and provide alternative
direction to staff.
Background/Analysis
On March 11, 2025, the City Manager awarded (attached) the construction contract for the
project to ARB, Inc. in the amount of$186,939.53. This project was awarded in accordance with
the City of Redding's (City) criteria for informal award.
The project consists of inspection of a 10-inch natural gas pipeline at three locations along the
shoulder of Clear Creek Road ranging approximately 1.5 to 2 miles east of the Redding Power
Plant to veri�y results of a previously performed In-Line Inspection (IL�, perfor�ned by others.
In general, the inspection work includes excavation to expose the pipeline, abrasive blasting to
strip the pipeline coating, verifying anomalies and confirming ILI report data with 3D and
ultrasonic scanning, re-coating the pipe, backfilling and surface restoration, and providing
inspection reports to the City. All work on the project will be performed while the gas pipeline
remains in service.
During the course of construction, unforeseen conditions in the field warranted changes to meet
the projects intent and to complete the project in a timely manner as per the project
speci�cations. These changes incl�ude addressing excessive ground water issues; removal of
existing slurry pipe encasement, pipeline repair material, and a concrete slab over the pipeline;
and the removal and replacement of unknown drainage infrastructure and an existing corrugated
metal pipe section.
All these unforeseen conditions were addressed as they were found by directing the contractor to
proceed with the work (including additional items of work to remedy the unforeseen conditions)
so that no potential impacts were created for the Power Plant during peak summer time energy
demands. Once the excavation and pipeline exposure processes were started, the City was
required to minimize both pipeline exposure and pipeline submergence without the proper
coating on the pipeline. Leaving the pipeline exposed longer than required would have created
issues that were anticipated to make it more difficult to apply the planned pipeline coating at a
later date as well as cause additional issues to the bare section of the pipeline being within a
corrosive environment. Additionally, due to the gas pipeline being Department of Transportation
(DOT) regulated, the contract had to meet regulatory protective coating requirements as per 49
CFR 192.461. Based on the potential for additional pipeline corrosion, compliance obligations
and public safety issues with each excavation site being opened up with the high-pressure gas
main exposed, it was necessary to proceed with the extra work prior to obtaining Council
approval for the additional funding needed to successfully complete the project.
Environmental Review
On December 11, 2024, the City's Environmental Team had determined that the project is
categorically exempt from review under the California Environmental Quality Act, pursuant to
Section 15301(a)—Existing Facilities. No further action is required.
Report to Redding City Council July 8, 2025
Re: 4.11(d)--Approve costs for RPP Natural Gas Pipeline Inspections Project Page 3
Council P�ioNity/City Manager Goals
This agenda item is a routine operation item.
Attachments
^CM Award/Bid Tab/NoE/Location Map
C I T Y Q F =(�f I NTERNAI..,
` '�.`
c � �, i � c� � �v � �.:
. OM UNICATIUN
DATE; Macch �1, 2025
TO: Barry Tippir�; City Manager
FROM° Michael Webb, City Engineer
SUBJECT; Recommendation r�f Contract Award
Redding Power Plant Rlatur�l Gas Pipeline lnspecfiit�ns
Bid Schedule No. 5563
Pursuant to Public Contract Code Secti�ns 22000-22045 bids were requested fc>r Redding Power
Plant Natural Gas Pipeline Inspectic�n�, In accordance with Ordinance No. 2625, the City Man�ger
has been de�egated#he �uthority to award this prc�ject.
Atta�hed is a tabulation of bids r�c�ived and opened on January 3t1, 2t125, ft�r this prc�ject. The
I�w bid in the arndunt of$186,939.53 was received€ram ARB, Inc., of Pittsburgh, California. The
�ngineer's estimate vvas $120,4t70.00,
Recc�mr»endation
It is recommended that the City Nlanager:
1. Avuard this prt�ject to ARB, Inc, in th� amount t�f$186,939.53;
2. Rpprove an �dditional $19;Ot�0 to ccrver the cas#af contract �dministration and inspe�tion
fees;
3. Approve $28,000 tc+ provide canstruction conting�ncy funding;
4. �pprove $18,00�for praj�ct developm�nt cr�sts,
5. Approve the prc�ject design pl�ns, specificaticans anr! spe�ial pravisic�ns; and
�a. Find the project is Categorically Exempt from the Galifornia Environmental Quality A�cf per
Section 15301 — Existing �aciliti�s, Class 1 exc�pfians include the operation, repair,
maintenance or minor alterati�rn af existing facilities, structures, or equipment invc�lving
negligible t�r no expansion ofi u��.
The Redding Powfer Plant Naturai Gas Pipeline Inspections is funded by the REU.
Cc�st Summary
tt�m Estimated
Project Development Cost $ 18,000.00
Construction Cantract + Gontingency $ 214,939.53
ContractAdministratic�n, Insp�ctic�n Testing $ 1�,OOO.flO
Total Prc�ject Cast $ 251,939.53
Background
The Project includes inspectian of a 1 fJ-inch natural gas pipeline at up ta three (3) locatians along
the shoulder of Clear Cre�k Road ranging fram appraximately 1.5 to 2 miles easfi of the City of
Redding Pc�w�r Plant to v�*rify results of a previously performed In-Line Inspecti�n (ILI), perfc�rmed
by others. In general; the inspection wt�rk will include excavation to expose the pipelin�, abrasive
blasting to strip the pipelin��a�tinc�, verifying anomalies and ILI report data with 3D and ultrasonic
scanning, re-�oating and tape wrapping the piping, backfilling and re�airing damag�d surface
features, and providing inspectiQn repc�rts to the City. Compc�site wrap repairs of the pipeline wi11
be required in the inspection areas, and repairs of the �ipeline with a steel weld sleev� may also
be required if directec! by the Engineer during the inspecti�n process. It is anticipatec!that all work
will be perforrned whil'e the gas pipeline remains in service:
Af#achments
Bid Tab
Notice c�f Exemptiic�n
Location Map
c: Finance
Environmental Compliance Manager
- l�� �
City Engin r Date
APPRt7VE�:
City �l1an er Dafie
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�UTICE C)F EXE:�ICI'TIdJIY
Ta: � Offi�e c�f�lanning and Research Fttt)M: Gity afReddin;
140t}Tenth Street, Roc+m 12i Pubiic Works L?epartment
�acra�nentc�, CA 95814 7"l7 Cypress Avenue
Redd'rng,�A 96Q01
� Shasta County Clet�k
Cc�unty of Shasta
P.t�.�ox 99488Q; 1643 Market Street
�teddin�,�A 96099�(1884
Pro;�eet Title: Reddin�Pawer Plant Natural Gas Pipe(ine It�spections
Project Lacati�n—Sp�c��c; 17IZQ Clear Creek Rd.
Praject T:,crcation--City:l�ecldin� Project Loc�ti�n—Cc►unty: Shasta
Descriptir�n of Prc►ject: The CiCv of Redding,�Ci prcap�ses in�ection of a 10-inclt natural gas pit�eline at u�to three(3l
to�aticans a1on� the sfic�ulder c�f Clear Creek Road ra�z�in fr�om�a�prt�xi�nate�� I 5 tcr 2 miCes e�st of the Citv of R:eddin�
Paaver Plant to verifv results c�f a previauslY�aerformed In-Line Ins�ectic�a�(ILI) Wcrr{c will include excavatit�n to ex c�
tl�e pipetine. abrasive bfastin tg c� strip the pipeline cc�atisZ,�, verif�in�ancamalies and ILI repc�rt data with 3D and ultrascanic
sc�nin , re-coatin and ta e wra ili the i in re airin darna ed surface fe�tur�s vuith a steel weld sleeve ar cc�m a�ite
wrap backfillirt�disturbed surface areas altd re airin (t�avin� ��ncrete reve eta� ationZtl�c�se areas baek to pre-cc�nstruction
cc�nditions.
Name�fPubl"ac A��ncy Approving Pr+�ject: City ofReddin�
lY�me-of Perst�n arr Agency C�rr�ing Out;Prvject: K�rt Nlair�.PE-Frc�ject En�ineer
Exexnpt Sta�trus: �checkc�rae)
❑ Ministerial�Section 21�80(b){1); 1526�]
� L}e�Cared Emer,�ency[Section 210�0(b)(3}; 15269(a)]
D Em�rgen�y l�resject jSectian 21�80(b}{�); 15269{b}]
C1 �tatutc�ry�xetnptrons. State cc�de number;
E� Ct�[ttrrs�n Sense Exemptit�rt{This prc�ject d�es nat fall within an exempt class,but it can be seen wiCh certainty that th�re is
nc�pc>ssibility that the acttvity may have a si;niftcant effe�t on the environrnent(14 CCR 15601�b][3j).
0 Cat�gorical Exemption. �tate tYpe and section number: 5ec, 1 S3fi�l.E:�istin�Faci(iti�s
� No exceptioi�s apply that wc�uld bar the use of a c�tegcsrica[exernptiQn{PRI7 210�4 and I4 CCR 153(}Q.2).
Reasctn� why project is �x�mpt. Class 1 exemptions rncluc[e tf�e operation, re�air. �naintenance ar minc�r alteratic�n c�f
existin facitities structures ar e ui ment invc�luin ne ii ible ar na ex ansion c�f use.The ro'ect will ins ct and re air
as needed e�cistir� infrastructure in the same lcsc�tic�n and servin the same u c�se and ca a�i . In additic�n the re�'ec�
will Qccur in reviausl disturbed areas �nd the current focat rint of the utili . Therefcsre the ro'ect has no atential fo
have a si ni�c�nt effect Qn the environrnent and fur�her envirc�nnnental review is nc�t re uired.
Le�d A�ency+Gtrntact Person: Amber Kelley Telephc►ne: 53q.225.4046
Tf Filed by Applicaut.
1: Attach c�rtifie�docur�er�t nf exemption finding.
2.4 Ha�a notic�,of�xemption been filed by the pub[ic agency apprcaving fhe praject?�Yes o No
�' y
� ,u . . ,
�igna�ua�� ��<< ���_ ���" .� ; ! � : ���:�.�-� D�t�; � :. � `
T'itle: Envir�nrnental�orr�pliance Mar�a�er
�Signed t�y Lead Agency Date received for filing at(�PI�:
❑ Signed by Applicant
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� ra� '��t�,�� CITY tJF REQDING REDDING PQWER PL,4NT
� � PUBLIC WC�RKS IVATURRL G�S PIPELINE IN'SPECTiC�NS
t � a DEPARTMENT
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�°�>�o�`' L(�CATI{�N MAP