RFP 2026-0064-PW/DK Water Reclamation Facility Expansion - Design-Build Project -Addendum No 4
| Bidders ID: | NBD14263987702366832 |
|---|---|
| Due Date: | Jul 14, 2026 |
| Posted Date: | Jun 8, 2026 |
| Level of Government: | State & Local |
| State: | New Mexico |
| Agency: | Santa Fe County |
| Category: |
|
| Source: | Members Only |
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Justin S. Greene
Commissioner, District 1
Lisa Cacari Stone
Commissioner, District 2
Camilla Bustamante
Commissioner, District 3
Adam Fulton Johnson
Commissioner, District 4
Hank Hughes
Commissioner, District 5
Gregory S. Shaffer
County Manager
June 5, 2026
SANTA FE COUNTY
RFP No. 2026-0064-PW/DK
Water Reclamation Facility Expansion - Design-Build Project
ADDENDUM NO. 4
Dear Proponents,
This addendum is issued to reflect the following immediately. It shall be the responsibility of
interested Offerors to adhere to any changes or revisions to the RFP as identified in this Addendum
No. 4. This documentation shall become permanent and made part of the departmental files.
Attachment E: Cost Proposal Form
Attachment F: Agreement No. 2012-0229-PW
Dropbox Link:
https://www.dropbox.com/scl/fo/0zxg80g8iozu4rwqnr5u0/AFbyIqJgGWABZYmXNKodstU?rlke
y=p993gtze5tudy697hw37s2m5b&st=0vzpx4t9&dl=0
Question No. 1: Effluent Quality: The existing WRF apparently was not designed to meet the same
effluent quality criteria established for the expanded WRF in the RFP, particularly with respect to
phosphorus removal. The planned improvements (shown as FUTURE on the Record Drawings) to
the existing aeration basin, with the addition of the basins at the end of the structure and adding the
internal recycle stream, will improve the nitrogen treatment capacity but will not provide biological
phosphorus removal.
QUESTION: To what extent, if any, will improvements to the existing WRF be required in this
expansion to bring the existing WRF Aeration Basin into compliance with the effluent quality criteria
established for the new WRF? If none, please acknowledge that the blended effluent from the existing
and new facilities will not meet the more stringent effluent quality criteria established in the RFP.
Answer No. 1: This proposal is not to include improvements to the existing phase one.
102 Grant Avenue · P.O. Box 276 · Santa Fe, New Mexico 87504-0276 · 505-986-6200 · FAX:
505-995-2740 www.santafecountynm.gov
Question No. 2: Project Limits: What are the limits of the County’s land parcel that is available for
use for the Water Reclamation Facility Expansion?
Answer No. 2: See Attachment F - Agreement No. 2012-0229-PW
Question No. 3: Allowed Shutdowns: Are any short-term temporary plant shutdowns allowed for tie-
ins or other related work tasks?
Answer No. 3: Coordinated shutdowns can be facilitated with proper notice.
Question No. 4: The current discharge permit, DP-234, has a total nitrogen limit of 10 mg/L. The
RFP states an effluent quality less than 3.0 mg/L for total nitrogen.
a. Please advise on what effluent quality should be used for design criteria.
Answer No. 4: The treatment requirements should meet or exceed the required removal of nitrogen,
and the design criteria should use the DP as the baseline reference for what is needed from the
treatment process
Question No. 5: We understand that there currently is SCADA at the site.
a. Can we be provided with a 12-month history of flow data?
Answer No. 5: Yes. The requested 12-month history of flow data will be provided through the
Dropbox link at the beginning of this Addendum. Each shortlisted Design-Build Team will be notified
once the documents have been uploaded.
Question No. 6: Can the influent load criteria, including biological oxygen demand, total suspended
solids, total Kjeldahl nitrogen, total phosphorous, minimum water temperature and
alkalinity at a minimum be provided?
Answer No. 6: Answer No. 6: The County will provide available influent data, including TKN, TSS,
BOD, temperature, and pH, through the Dropbox link at the beginning of this Addendum. The
County’s discharge permit does not currently require sampling for phosphorus. Each shortlisted
Design-Build Team will be notified once the documents have been uploaded.
Question No. 7: It was noted in Section II, paragraph B. Scope of Work, of RFP_2026-0064-
PW/DK for specialty elements and considerations for the project shall include but are not limited to
the following: A full time Operator 4 for six months to train staff and operate the new facility.
a. Does this role need to be included in the cost proposal?
Answer No. 7: No. The County currently has a Level 4 Operator onsite; therefore, the Design-Build
Team does not need to include this role in its cost proposal.
Question No. 8: Does the County have a generator submittal or existing sizing calculations from the
original installation?
Answer No. 8: No. The County does not have the generator submittal or existing sizing calculations
from the original installation.
102 Grant Avenue · P.O. Box 276 · Santa Fe, New Mexico 87504-0276 · 505-986-6200 · FAX:
505-995-2740 www.santafecountynm.gov
Question No. 9: Is there a starting sequence for process loads when running on generator power that
is controlled by the plant control system?
Answer No. 9: Not at this time.
Question No. 10: Can the County provide shop drawings or photos of MSB?
Answer No. 10: Yes. Available MSB shop drawings or photos will be provided through the Dropbox
link at the beginning of this Addendum. Each shortlisted Design-Build Team will be notified once
available.
Question No. 11: Can the County provide shop drawings or photos of the PLC?
Answer No. 11: Yes. Available PLC shop drawings or photos will be provided through the Dropbox
link at the beginning of this Addendum. Each shortlisted Design-Build Team will be notified once
available.
Question No. 12: It was stated during the mandatory site visit that the existing generator is large
enough to also service the Phase 2 rollout.
a. Please confirm this is the case.
Answer No. 12: Based on the County’s current understanding, the existing generator is assumed to
have sufficient capacity to serve Phase 2 expansion.
Question No. 13: In the Phase 2 documents, we were provided with a set of final design documents
for the first phase of the project. Additionally, we were provided with a 60% set of specifications.
a. Is a more complete set of final design specifications available for reference?
Answer No. 13: The documents provided with the Phase 2 materials are intended to serve as the
reference documents for this procurement. At this time, the County will not be providing additional
design specifications.
Question No. 14: Can the County provide preferred location for the sludge drying beds?
Answer No. 14: The preferred location for the sludge drying beds will be coordinated with the
awarded Offeror and shall be located onsite.
Question No. 15: Is the aerobic digester intended to function solely as a solids holding tank,
providing approximately two to three days of storage capacity?
Answer No. 15: The aerobic digester should not be assumed to function solely as a solids holding
tank. The proposed design should support nitrogen removal and include a RAS pump.
Question No. 16: Onsite Stockpile: To reduce the amount of required trucking, will the offerors be
allowed to stockpile spoils from earthwork operations onsite?
Answer No. 16: Yes.
102 Grant Avenue · P.O. Box 276 · Santa Fe, New Mexico 87504-0276 · 505-986-6200 · FAX:
505-995-2740 www.santafecountynm.gov
Question No. 17: Existing Facility Deficiencies:
The June 2025 Audit Report identifies approximately $7.1 million in existing facility upgrades needed
to bring the current plant into acceptable operating condition.
Please clarify:
•
are these identified improvements included as part of the Design Build scope, or
•
are they considered separate Owner improvements outside this procurement?
If included, please identify which audit recommendations are mandatory scope elements, as some of
them may be relied upon by the Design Builder.
Answer No. 17: Existing facility upgrades are not to be included in this proposal.
Question No. 18: Industrial Pretreatment / Influent Quality Control:
Section 6.7 of the June 2025 Audit Report reportedly identifies significant industrial discharge
tributary to the SFCWRF.
Please clarify whether Santa Fe County will:
•
adopt and enforce an industrial pretreatment ordinance,
•
require industrial pretreatment upstream of the SFCWRF, and / or
•
guarantee influent characteristics consistent with typical municipal wastewater strength.
Without influent quality certainty, process selection, sizing, and total pricing carry significant risk.
Answer No. 18: The pretreatment will be enforced.
Question No. 19: Confirm Design Criteria for Existing 0.5 MGD WRF:
Please confirm the existing 0.5 MGD WRF was designed based on the following criteria:
Design Flows:
•
Average Daily Flow (ADF) = 0.5 MGD
•
Peak Hourly Flow (PHF) = 1.0 MGD
Influent Characteristics:
•
Biochemical Oxygen Demand (BOD5) Concentration = 500 mg/L
•
Average BOD5 Loading = 2,085 lb/Day
•
Total Suspended Solids (TSS) Concentration
= 300 mg/L
•
Average TSS Loading
= 1,251 lb/Day
•
Total Kjeldahl Nitrogen (TKN) Concentration
= 50 mg/L
•
Average TKN Loading
= 208 lb/Day
Please confirm the Effluent Criteria for the existing 0.5 MGD WRF is as follows:
•
BOD5
< 20 mg/L
•
Total Suspended Solids
< 20 mg/L
•
Total Nitrogen
< 10 mg/L
Answer No. 19: The County is unable to confirm the listed design criteria based on currently available
records. Offerors shall rely on the RFP, addenda, provided documents, and their own review in
developing their proposed design.
102 Grant Avenue · P.O. Box 276 · Santa Fe, New Mexico 87504-0276 · 505-986-6200 · FAX:
505-995-2740 www.santafecountynm.gov
Question No. 20: Confirm Design Influent Criteria:
Please confirm the following design basis for average and peak influent characteristics:
Influent Parameter Average
Peak
Flow 1.0 MGD 2.0 MGD
BOD 500 mg/L
TSS 300 mg/L
TKN 50 mg/L
NH3 40 mg/L
TP 8 mg/L
Alkalinity 200 mg/L
Temperature 55–80°F
If it is not acceptable, please provide County-required design influent criteria.
Answer No. 20: For proposal purposes, the listed design influent criteria are acceptable for use as the
basis of design.
Question No. 21: Confirm Required Effluent Limits:
The RFP references “NPDES Tier 2” and specifically identifies:
•
TN < 3.0 mg/L
•
TP < 1.0 mg/L
Referencing NMED GWQB Class 1A requirements for above-ground use of reclaimed domestic
wastewater confirm the following required 30-day average effluent limits:
•
BOD5
= 10 mg/L
•
Turbidity
= 3 NTU
•
Fecal Coliform
= 5 per 100 mL
With confirmation of the above existing and proposed Design Criteria, please provide guidance to the
Offerors regarding the extent of retrofits required to bring the existing 0.5 MGD WRF into
compliance with the same criteria established for the expansion to 1.0 MGD.
The RFP requires numeric permit targets for process sizing and total pricing.
Answer No. 21: At this time, the County is operating under its discharge permit and not an NPDES
Tier 2 permit. For proposal purposes, Offerors shall use Total Nitrogen of 10 mg/L or less. The
County will verify the applicable requirements and provide any further clarification by addendum.
Question No. 22: Groundwater Discharge Permit Responsibility
Will the Design-Build Team be responsible for:
•
preparing permit applications,
•
supporting hydrogeologic studies,
•
preparing engineering reports, and / or
•
obtaining approval for a new or modified Groundwater Discharge Permit from New Mexico
Environment Department?
Please define permitting responsibilities.
Answer No. 22: The groundwater discharge permit will not be the responsibility of design build team.
102 Grant Avenue · P.O. Box 276 · Santa Fe, New Mexico 87504-0276 · 505-986-6200 · FAX:
505-995-2740 www.santafecountynm.gov
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