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Home My WebLink About_ 4.11(d)--Award BS No. 5698 Stillwater WWTP Secondary Clarifiers 1 & 2 Rehab GI �" Y C� F � � �- ' � ° � � i � CITY OF REDDING �� REPORT TO THE CITY COUNCIL MEETING DATE: July 21, 2026 FROM: Michael Webb, Assistant City ITEM NO. 4.11(d} Manager/Public Works Director ***APPROVED BY*** mwebb@cityofredding.org �� ,4� a� � ° � ,.� ,� �,� � , �. au �-� ,�� ,�..�. � 1��31iaa�"��'arla+ax �`�� Iv�an��er 7l13/202(a wtarbox@cityofredding.gov SUBJECT: 4.11(d)--Award Bid Sched�ule No. 5698 (Job No. WSADM23008) Stillwater Wastewater Treatment Plant Secondary Clarifiers 1 & 2 Rehabilitation Project Recommendation Authorize and approve the following actions relative to Bid Schedule No. 5698 (Job No. WSADM23008), Stillwater Wastewater Treatment Plant Secondary Clarifiers 1 & 2 Rehabilitation Project: (1) Award to RTA Construction, Inc., in the amount of$2,590,000; (2) Approve an additional$450,000 to cover the cost of administration and inspection fees; (3) Approve $45,000 for project development costs; (4) Approve $260,000 to provide construction contingency funding; (5) Autharize the City Manager, or designee, to execute related documents and to approve additional increases in either the construction management or construction contingency amounts up to a total of$100,000; and (6) Find that the Project is categorically exempt from review under the California Environmental Quality Act,pursuant to Section 15301 - Existing Facilities. Fiscal Impact The Stillwater Wastewater Treatment Plant (WWTP) Secondary Clarifiers 1 & 2 Rehabilitation. (Project) is being funded by the Wastewater Utility Division. The Wastewater Utility has sufficient Fiscal Year 2026-27 budget for this project and its funding will not impact other activities or projects. Project cost components are estimated, and some shifting of the funds may be necessar to balance the ro'ect within the a roved bud et. Cost Summar� Item Estimated Pro'ect Develo ment Costs $45,000 Construction Contract-�- Contin enc $2,850,000 Contract Adminis�ration, Tns ection, Testin $450,000 Additional Cit Mana er Authorit $100,000 Total Pro'ect Costs $3,445,000 Total Pro'ect Bud et $3,450,000 Report to Redding City Council July 16, 2026 Re: 4.11(d)--Award BS No. 5698 Stillwater WWTP Secondary Clarifiers 1 &2 Rehab Page 2 Alternative Action City Council may choose not to award the bid for the project and provide staff with alternate direction. Without this project, there is an increased potential for higher maintenance costs, decreased reliability, and an increased risk of equipment failures and sanitary sewer overflows at the Stillwater WWTP. Background/Analysis The City of Redding's (City) wastewater system includes two wastewater treatment plants, 20 lift stations, and appro�mately 435 miles of public sewer pipeline ranging from 6 to 54 inches in diameter. The City's Stillwater WWTP treats wastewater from the Stillwater Basin, which includes the portion of the City east of the Sacramento River. Approximately one-third of the City's population resides within the Stillwater WWTP service area. The Stillwater WWTP was constructed in 1991. The Secondary Clarifiers 1 & 2 have been in service since that time and are now in need of rehabilitation. The mechanical equipment in the clari�ers has reached the end of its service life, and the grout floors in the clarifiers have separated from the concrete foundation in several areas and are beginning to crack. The Project will replace all of the mechanical equipment in Secondary Clarifiers 1 & 2, and remove and replace the grout floors in the clarifiers. Attached is a tabulation of bids received and opened on June 18, 2026, for construction of the project. The low bid in the amount of$2,590,000 was received from RTA Construction, Inc., of Redding, California. The engineer's estimate was $2,908,502. Total project development costs are estimated at $45,000 and include engineering, surveying, right-of-way, environmental, and consultant services. Envir�onmental Review Staff has determined that the project is categorically exempt from environmental review under California Environmental Quality Act G�uidelines, pursuant to Sections 15301 - Existing Facilities. Class 1 exemptions include the operation,repair, maintenance, or minor alteration of existing facilities, structures, or equipment involving negligible or no expansion of use. The project is a regular maintenance item and does not involve change or expansion of use. The project has no potential to have a significant effect on the environment. Council Priority/City Manager Goals . This agenda item is a routine operational item. Attachments Location 1VIap Bid Tabulation Notic� of Exemption c5� \ �ggE C9�-- S � a �'� O ��- � �CR,qMENTO RI�ER �P � �"'`-�____-_ --� -,_ OL ALTURAS 2 � f�fti_�;:-� SR 299W , =� � �� P��ER �YpRFssf� S�A �, V I K I N G r E. CYPRES � f 1 H RTNELL _ F-- Q � w z � _ � > � 0 � w � Q Q CITY�' � -��\ � _ I�C�D/Nc `� � oNN.��o � � RANCHO � g f� W o � � � � Z Q �,��,� � KNIGHTON a � � �- oz _��__� � �-�-a �-° �STs, � �` �-' w °F ��,�- G y � S�Q-Q'� DERSCH RD �p-ee �j �-----�,__ `s�9c,f, �^_�- �' �o�- '�� p��9�F'�To �� STIL�WATER WASTEWATER �o TREATMENT PLANT (SWWTP) N�-��s 6383 AIRPORT FiOAD � aEs% REDDING CA. � /-- �� '� CITY OF REDDING �oF REoo STILLWATER WWTP � _-- � CLARIFIERS 1 & 2 REHABILITATION PUBLIC WORKS � �� ,�! . ° ENGINEERING DEPARTMENT ��,Foa��P �OCATION MAP BID TABULATION FOR: SWWTP Secondary Clarifiers 1 &2 Rehab Bid Schedule No.: 5698 ENGINEER'S EST RTA Construction Inc SnL Grou Inc. 6/18i2026 UNIT UNIT UNIT ITEM DESCRIPTION UNIT QTY PRICE TOTAL PRICE TOTAL PRICE TOTAL 1 Water Pollution Control LS 1 $5,000.00 $5,000.00 $3,200A0 $3,200.00 $2,500.00 $2,500.00 2 Trench Sheeting & Shoring LS 1 $2,000.00 $2,000.00 $1,800.00 $1,800.00 $5,000.00 $5,000.00 Stiliwater WWTP Secondary Clarifiers 1 &2 3 Rehabilitation LS 1 $2,901,502.00 $2,901,502.00 $2,585,000.00 $2,585,000.00 $2,792,498.00 $2,792,498.00 TOTAL -CONTRACT ITEMS $2,908,502.00 $2,590,000.00 $2,799,998.00 GSE Construction Companv, Euro St le Mana ement Inc. NMI Industrial Holdinqs, LLC AVERAGE UNIT UNIT UNIT UNIT ITEM DESCRIPTION UNIT QTY PRICE TOTAL PRICE TOTAL PRICE TOTA� PRICE 1 Water Pollution Control LS 1 $5,000.00 $5,000.00 $7,200.00 $7,200.00 $5,000.00 $5,000.00 ' $4,580.00 ' 2 Trench Sheeting & Shoring �S 1 $10,000.00 $10,000.00 $100.00 $100.00 $3,000.00 $3,000.00 $3,980.00 Stillwater WWTP Secondary Clarifiers 1 &2 3 Rehabilitation LS 1 $2,858,000.00 $2,858,000.00 $2,955,200.00 $2,955,200.00 $3,525,000.00 $3,525,000.00 $2,943,139.60I Average Bid Total TOTAL -CONTRACT ITEMS $2,873,000.00 $2,962,500.00 $3,533,000.00 $2,951,699.60 Page 1 of 1 t3T�GE F �E PTT N Tt�: � C?ffice c�f P�anning�nd R:esea�•ch F[iOtv�: City of Reddin� 1400 Te��th Street,Rc�om t21 P°ub�ic Works t�epartment Saca•atnent�,GA 95�I4 777�ypress Avenue Reddin�, (�A 96001 � Shasta Caunty Clerk Gaunty of Shasta 1'.�.Box 99{�$8t1, 164�Market Street Reddin�, CA 9�(}9�-0880 Proj�ct Title: �tiltwater W"VV"I`F'Secondary�Iarifiers 1cS'i2 R�habilitation Pro,ject Praj�ct Locatic�n—�pecific: 6475 Airpe�rt Rd. Pra;je�t L�catfon—City. And�rson Prcrject Lt�cation—�ounty: Shasta Uescription of Project: The City c�f Reddin�(CitY��ropos�s tt� rehabiiitate existin� secnndarv clari�ers 1 and � at �he Citv'�Sti[lwater Wa�t�watec'I'reatment Plant bv remavin�and replacing all mechanical and e�ectrical equipmet�t in�ide the �larifier structures, as well as th� access brid�;�s and stairs:the �rout floors, �ffluent slide �ates, and all pipi� ic�side botix structures. The prc�ject r�vill involve receivin� new equ%�mei�t, i�ernovin� the existin�ec uipinent and installin� the new eat�i�rmer�t withir►th� same g�neral lc�catron. Name of Public Agency Approving Project. City of Reddin� N�a�e of��rson ar Agene�C�rrying C?ut Projecf; Kur�Ma�re;1'E-Prc�'ec� t Enginear Exempt Status. (check e�aze} C] IVlinistel-ial {Seetio��21(}8(}(b){l); �5�68] C] I�eclared E�nef�e��c}�[secticrn 21080(b){3); 152�9(a}] (� Emergency Project[Section 2108Q{b)(4); 15269(l�)] � Statiitory Exemptic�ns. State eode number: C� �ominon �ense Exernptit�tx(This project daes nat fall with'rn an exempt class,but it can be seen with certainty tha�there is nc�possibility that the a�tivity tnay have a sign�ficat�t e�fect on the envirc�nment(14 CCR 15601[b][3]}. 0 Cate�c�rical E�em�tic�n, Stat�tYpe and secti�an number: 5��. 153(}l,Existin Facilities � No exce�tions app�y that w�u1d bar the use c��a categc��•ical exemptic�n(PI2T�2108�and 14 CCi2 I5300.2). Reasc�ns why project is exempt: C�ass � exemptic�ns �nc�ude the o�eration, repair, maint�nance, or min�r a�teratic�n c�f existin�facilities,structures,c�r ec��aiptnent invc�lving ne�,l�`�ib1e e�r no expat�sic�n c�f use.The prc�j�ct is a re�ular maint�nance item and dc�es ne�t involve ch�n e of or ex ansic�n c�f use.Therefore the ro'eet has rlo otential ta have a si nificant ef�`ect on the environment and further envirc�nmental review is nc�t reQuired: Lead Agency Contac�Person;. Mieke Sheffield Telephone: 530.225,48�9 If Fi1ed 1��Applicant; 1. Attacl�certified dc�cum�nt c�f exemption findir��. 2. Has a� tic, c�f ex�mpfiion been�led by the public ageney apprc�ving the project?r��'es a I�c� x�' �°� '' � ��.k �, � � � r .� � °� ' ` �� .� �i�na�ure: _ ��~ '` � �� ]D�t�: _� �n. �'"� .�,. � �� Titl�: Asso�iate Environment��S ecialist �� Signed l�y Lead A�ency Date received£ar filing at OPR.. C] Signed by Applicant