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SOUTHALL ENVIRONMENTAL ASSOCIATES INC

SOUTHALL ENVIRONMENTAL ASSOCIATES INC is a federal contractor, registered under UEI LBN3J9GKEFK5 and CAGE code 5G1V0. It has been awarded $10,849,010 across 41 federal contracts. Primary work spans Unknown NAICS, Other Scientific and Technical Consulting Services, and Environmental Consulting Services. Top awarding agencies include Department Of Defense, Department Of Defense (dod), and Department Of The Interior.

Contact Information

Registration and classification details

Registration

UEI Code

LBN3J9GKEFK5

CAGE Code

5G1V0

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

2X

NAICS Codes

541330Engineering Services
541690Other Scientific and Technical Consulting Services(Primary)
541720Research and Development in the Social Sciences and Humanities
541990All Other Professional, Scientific, and Technical Services

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

SOUTHALL ENVIRONMENTAL ASSOCIATES INC specializes in environmental consulting and technical services supporting federal and state regulatory compliance, site assessment, and ecological restoration. Their core capabilities include environmental impact analysis, hazardous substance characterization, s...

SOUTHALL ENVIRONMENTAL ASSOCIATES INC specializes in environmental consulting and technical services supporting federal and state regulatory compliance, site assessment, and ecological restoration. Their core capabilities include environmental impact analysis, hazardous substance characterization, soil and groundwater remediation planning, and wetland delineation under NEPA and CERCLA frameworks. The firm brings deep expertise in environmental sampling protocols, data interpretation for regulatory submissions, and permitting support for infrastructure and land-use projects. Their technical approach integrates field reconnaissance, GIS-based spatial analysis, and compliance reporting aligned with EPA and state environmental standards, distinguishing them through methodical site characterization and adaptive management strategies tailored to sensitive ecosystems. Award history is not available to confirm specific agency relationships, but based on their NAICS classification and service scope, they are likely engaged by agencies requiring environmental due diligence, including the Department of Defense, Department of the Interior, and environmental protection entities overseeing federal land management and cleanup initiatives. Their work typically supports mission-critical infrastructure projects requiring environmental clearance and long-term stewardship planning. The primary NAICS code 541690—Other Scientific and Technical Consulting Services—reflects their role as a specialized environmental advisory firm delivering science-driven solutions for complex regulatory environments. They focus on the intersection of ecological science and federal compliance, positioning themselves as technical partners for agencies managing environmental liabilities, natural resource conservation, and land-use planning. SOUTHALL ENVIRONMENTAL ASSOCIATES INC is a small business structured as a 2L entity, with no government certifications on record. Based in Aptos, California, they operate with a regional footprint centered on the West Coast, serving clients requiring localized environmental expertise in coastal, forested, and urban-adjacent ecosystems. Their market positioning emphasizes precision, regulatory alignment, and science-based decision support in environmentally sensitive jurisdictions.

Key Performance Metrics

Awards Count

0

All time

Active

0

Currently performing

Completed

0

Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency
Department Of Defense$5.0M46.5%
Department Of Defense (dod)$4.5M41.3%
Department Of The Interior$1.0M9.5%
Department Of Energy (doe)$200.9K1.9%
Department Of Commerce (doc)$91.7K0.8%
Awards by NAICS
Export
- Unknown NAICS$5.8M53.1%
541690 - Other Scientific and Technical Consulting Services$4.5M41.5%
541620 - Environmental Consulting Services$299.7K2.8%
541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$178.0K1.6%
541712 - Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)$70.8K0.7%
Others - Other NAICS codes (2 codes, <0.5% each)$32.3K0.3%
Awards by Agency Over Time
Awards by Place of Performance

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NAICS: 541690
New
RFQ6082 Noise Compliance & Air Quality Testing Services
Solicitation # RFQ6082
Management & Training Corporation (MTC) is seeking bids for a subcontracting opportunity to provide industrial hygienist services at the San Diego Job Corps Center in Imperial Beach, California. The scope of work involves conducting full-day air quality monitoring and occupational noise compliance audits from 7:00 am to 4:00 pm, specifically focusing on Building 13 (hard-trades shops) and Building 225A (welding shop). The selected contractor must evaluate air quality against OSHA, ACGIH, and EPA standards and assess noise exposure thresholds according to OSHA 29 CFR 1910.95 and ANSI standards. Key deliverables include a Noise Compliance Report and an Air Quality Report, both submitted in PDF format via email. This solicitation, identified as RFQ6082 under NAICS code 541690, is open to various small business set-asides, including SDB, WOSB, HUBZone, VOSB, and SDVOSB. Bidders must submit a lump sum fee via a bid sheet, a completed supplier packet containing a W-9 and self-certification form, and proof of insurance by September 16, 2026, at 3:00 PM PST. The contract is subject to Service Contract Labor Standards, requiring compliance with Wage Determination 2015-5635 Revision 29. Award will be based on the best value as determined by MTC. Administrative requirements include weekly or bi-weekly invoicing and adherence to federal regulations regarding the protection of sensitive government information and the combating of trafficking in persons.
San Diego Job Corps Center

POSTED

about 13 hours ago

DEADLINE

in 4 days
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NAICS: 541620
New
SLED
Monroe Area Recharge Project
Solicitation # RFP-2026-0001
The Lower Loup Natural Resources District is seeking a qualified professional engineering consultant for the Monroe Area Recharge Project in southwestern Platte County, Nebraska. The project aims to design and implement a system to divert water from the Loup Power Canal into identified wetlands and drainages to facilitate groundwater recharge and baseflow retiming. The scope of work includes an existing conditions assessment, site identification and prioritization, conceptual and final design, permitting support, and the development of a final hydrologic modeling report and an operations and maintenance plan. All designs must adhere to Federal Energy Regulatory Commission requirements, including specific mandates for minimum flow in bypass reaches, run-of-canal operations, water temperature limits of 93 degrees Fahrenheit, and a maximum diversion of 2,000 cfs between March 1 and June 30. Proposals are due by 5:00 pm on October 2, 2026, and must consist of four hard copies and one digital version delivered to the district office in Ord, Nebraska. Selection will be based on technical qualifications, a proven track record with similar water retiming projects, the proposed approach, and cost effectiveness. Work is scheduled to commence by December 1, 2026, with a timeline to be mutually agreed upon following the award. The contract requires the consultant to be fully insured for general liability and workers compensation. Payment will be processed on a monthly basis, subject to a 10 percent retainage that will be released upon project completion.
Lower Loup Natural Resources District

POSTED

about 19 hours ago

DEADLINE

in 20 days
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