Firm Description: Geo-Technology Associates, Inc. (GTA)

Multi-Regional Geotechnical Mastery: Geo-Technology Associates, Inc. (GTA) is a full-service geotechnical and environmental consulting firm with a robust presence in the Mid-Atlantic region. Their expertise encompasses the full lifecycle of land development, from initial site selection and due diligence to construction-phase testing and post-occupancy monitoring. For the Knapp Elementary project, GTA leverages their deep understanding of Southeastern Pennsylvania's geological formations, specifically the residual soils and bedrock typical of Montgomery County.
Localized Quakertown Operations: GTA operates a specialized regional office in Quakertown, PA, which serves as the primary technical hub for the North Penn School District engagement. This strategic location ensures that GTA field technicians and professional engineers can provide responsive, on-site support to the Knapp Elementary campus. Their geographic proximity is a key component of their "portal-to-portal" service model, allowing for rapid deployment and efficient technical oversight during critical construction milestones.
Leadership in Educational Infrastructure: GTA has established a distinguished record of supporting public sector clients, particularly in the educational and institutional sectors. Their involvement with the North Penn School District is based on a reputation for delivering technically sound, cost-effective solutions for complex building renovations. For the Knapp ES project, they serve as the independent third-party observer, ensuring that the structural integrity of the new additions meets the long-term safety requirements of the District's students and staff.
Comprehensive Service Integration: The firm’s capabilities extend beyond basic soil testing. GTA offers an integrated suite of services including geotechnical engineering, environmental consulting, industrial hygiene, and construction materials testing. This "one-firm" approach allows for seamless coordination between subsurface exploration and construction-phase verification, reducing the potential for technical gaps or communication breakdowns that often occur when using multiple consultants.
AASHTO-Accredited Laboratory Infrastructure: GTA maintains state-of-the-art laboratory facilities that are accredited by AASHTO (American Association of State Highway and Transportation Officials). This accreditation signifies a commitment to the highest standards of data integrity and testing precision. For the Knapp project, this means that every soil sample, concrete cylinder, and asphalt core is analyzed using protocols that meet national benchmarks for quality and reliability.
Technical Oversight and Engineering Rigor: Every project undertaken by GTA is directed by a Licensed Professional Engineer (P.E.) and supported by a dedicated Field Department. For the North Penn School District, this high-level oversight ensures that all field observations and laboratory results are synthesized into actionable engineering recommendations. This rigor is foundational to GTA's role in verifying "substantial compliance" with the project's structural design concepts.
Commitment to Fiscal Responsibility: GTA’s proposal for the Knapp Elementary renovations reflects a commitment to the District’s fiscal constraints. By providing a "low fee proposal" of $65,850.00, GTA demonstrates that high-level technical expertise does not have to come with an exorbitant price tag. Their unit-based fee structure ensures that the District only pays for the actual technical time and laboratory tests required to verify construction quality.
Risk Management and Mitigation: GTA’s primary objective on the Knapp campus is the mitigation of structural and environmental risk. By identifying subsurface anomalies such as undocumented fill or low-bearing-capacity soils early in the exploration phase, they help the District avoid costly change orders and long-term settlement issues. Their technical oversight serves as a vital safeguard for the District’s multi-million dollar investment in the facility.
Data-Driven Reporting Ecosystem: GTA utilizes a sophisticated reporting system that provides the Client with clear, transparent access to field data. Daily field reports, laboratory test results, and summary reports are issued in a consistent format, allowing the District's project managers to track construction progress and compliance in real-time. This level of transparency is critical for maintaining the project schedule and ensuring accountability among the various contractors.
Ethical and Professional Standards: As a leading member of the engineering community, GTA adheres to a strict code of professional ethics. Their independence as a third-party testing agency ensures that there is no conflict of interest during the material verification process. This integrity provides the North Penn School District Board of Directors with the assurance that Knapp Elementary is built to the highest standards of safety and quality.

Scope of Services: Geotechnical Engineering and Inspection

Phase I: Subsurface Exploration and Foundation Design: The technical engagement begins with a comprehensive subsurface exploration program. GTA will execute a series of test borings within the footprint of the proposed building additions at Knapp Elementary. This exploration is designed to characterize the soil profile and determine the depth to bedrock, providing the foundational data required for the structural engineer’s design.
Test Boring and Soil Sampling Protocols: GTA will deploy truck-mounted drilling equipment to perform test borings using Hollow Stem Auger (HSA) methods. Soil samples will be collected at regular intervals to determine the classification and load-bearing properties of the subsurface materials. This phase is critical for identifying any low-density soils or undocumented fill that may require remediation before construction.
Stormwater Infiltration Rate Testing: To comply with PADEP (Pennsylvania Department of Environmental Protection) regulations, GTA will perform infiltration testing at eight (8) locations. These tests are conducted to determine the rate at which the soil can absorb stormwater runoff. This data is essential for the design of the site’s stormwater management systems, ensuring the school campus remains well-drained and compliant with environmental standards.
Geotechnical Engineering Analysis and Reporting: Upon completion of the field exploration and laboratory testing, GTA will issue a formal Geotechnical Engineering Report. This report includes recommendations for foundation types, allowable bearing pressures, estimated settlement values, and site preparation requirements. This document serves as the technical roadmap for the structural design of the renovations.
Phase II: Construction Observation and Material Verification: As construction commences, GTA transitions into an active quality assurance role. This phase involves the physical presence of GTA technicians on-site to observe and test the various materials used in the building's construction, ensuring they meet the project's technical specifications.
Foundation Subgrade Evaluation: GTA technicians will inspect all foundation excavations before concrete is placed. They verify that the subgrade consists of competent natural soils or properly compacted structural fill. This step is vital for ensuring that the foundation can safely support the 3,500+ psf (pounds per square foot) bearing capacity required by the structural design.
Compaction Testing of Soil and Stone Base: Using nuclear density gauges, GTA will perform field compaction tests on all structural fill, backfill, and stone base materials. This ensures that the soil has reached the maximum dry density required to prevent future settlement of slabs and pavements. All testing is conducted in accordance with ASTM D-1557 (Modified Proctor) standards.
Cast-In-Place Concrete Quality Control: The scope includes rigorous testing of all structural concrete poured on-site. GTA technicians will measure the slump, air content, and temperature of the concrete. They will also cast test cylinders that are subsequently broken in GTA’s Quakertown laboratory to verify the concrete’s compressive strength at 7 and 28-day intervals.
Structural Steel and Erection Observation: GTA provides technical oversight for the erection of structural steel members. This includes verifying the torque of high-strength bolts and performing visual and non-destructive testing of field welds. This observation ensures the integrity of the building’s framing and its ability to withstand seismic and wind loads.
Structural Masonry Grout and Mortar Testing: For the school's load-bearing masonry walls, GTA will test the mortar and grout. This involves casting grout prisms and mortar cubes to verify their compressive strength, ensuring the masonry components of the renovations are robust and compliant with the building code.
Bituminous Paving Inspection and Core Analysis: The scope extends to the school’s new parking areas and access roads. GTA will monitor the placement of bituminous (asphalt) paving, checking material temperatures and verifying compaction density through core sampling or nuclear gauge testing to ensure the long-term durability of the pavement.
Spray-Applied Fireproofing Verification: GTA will inspect the application of spray-applied fireproofing to structural steel members. Technicians measure the thickness and density of the fireproofing to ensure it meets the fire-resistance ratings required for institutional education facilities.
Reinforcing Steel (Rebar) Placement Observation: Before concrete placement, GTA will inspect the reinforcing steel (rebar) for size, grade, and spacing. They verify that the rebar is correctly tied and has the necessary clearance from the soil and forms, ensuring the reinforced concrete elements achieve their design strength.
Real-Time Field Reporting and Documentation: All field observations and test results are documented in daily reports. These reports are distributed to the North Penn School District project team, providing a transparent and immediate record of construction quality. This communication is vital for identifying and resolving technical issues before they impact the project schedule.
Final Structural Compliance Certification: At the conclusion of the project, GTA will issue a final summary report. This document certifies that, based on their observations and testing, the geotechnical and material components of the Knapp Elementary renovations substantially comply with the approved plans, specifications, and design concepts.
Professional Engineering Oversight of Field Activities: Throughout both Phase I and Phase II, all work is performed under the direct technical supervision of a Licensed Professional Engineer. This ensures that every technical judgment made on-site is backed by the engineering expertise required for a high-occupancy public safety training range.

Technical Evaluation & Criteria

Contract Allocation (Estimate)

Phase I (Geotechnical): $15,300.00 Estimated.
Phase II (Construction): $50,550.00 Estimated.
Drilling Unit Price: $19.00 - $24.00 per LF.
Field Technician: $65.00 per Hour.
Concrete Cylinder: $18.00 per Test.

Selection Metrics

The North Penn School District selected Geo-Technology Associates, Inc. (GTA) following a competitive procurement process involving five (5) proposals. GTA was recommended for the award based on their "low fee proposal" of $65,850.00 and their demonstrated "familiarity with the district and previous performance" on institutional projects. Technical compliance is measured against ASTM and PADEP standards.

Technical Callouts

HSA

Hollow Stem Auger. A drilling technique that allows the retrieval of soil samples while maintaining the integrity of the borehole in loose or saturated soils.

3,500 PSF

Pounds per Square Foot. The net allowable bearing capacity required for the foundations to safely support the building's structural load.

Portal-to-Portal

A billing methodology where time is tracked from the moment a technician leaves the GTA facility until they return.

ASTM D-1557

The Modified Proctor test used to determine the maximum dry density and optimum moisture content for structural fill materials.

GAYA CAPITAL

DOCUMENT REF: GTA-NP-2019-7.1

Knapp Elementary Building Renovations