While property owners often confuse the two, a Perc Test and a Geotechnical Report serve entirely different purposes and cannot be used interchangeably for structural work.
### Perc Test (Percolation Test)
- Primary Purpose: Used solely for septic system design.
- Key Data: It measures the soil’s absorption rate in minutes per inch to determine the size of a leach field.
- Structural Relevance: It provides no data on whether soil can support a building. Building departments will not accept a perc test for foundation permits.
- Typical Cost: $100 – $300 per test hole.
### Geotechnical Report
- Primary Purpose: Evaluates soil bearing capacity for structural foundation design and repair.
- Key Data: Provides comprehensive technical details including soil type classification, density, groundwater depth, shear strength, and shrink/swell potential.
- Structural Relevance: Essential for calculating foundation dimensions and determining the depth and spacing of helical piers.
- Typical Cost: $800 – $3,500 depending on the project scope and site access.
In the Denver metro area, geotechnical reports must be prepared by a licensed geotechnical engineer and follow ASTM standards to ensure the long-term stability of the structure.
Related FAQs
-
Does the Weight of my Home Determine whether Push Piers or Helical Piers are the More Cost-effective Repair Solution?
Read More »: Does the Weight of my Home Determine whether Push Piers or Helical Piers are the More Cost-effective Repair Solution?Yes, the weight of your home is a major factor in determining whether steel push piers or helical piers are more cost-effective for your specific project. At ACN Construction, we assess structural load carefully because different pier systems react differently…
-
Do Walk-in Showers Increase Home Resale Value?
Read More »: Do Walk-in Showers Increase Home Resale Value?Yes, walk-in showers significantly increase home resale value by making bathrooms appear larger and more modern, which is a key selling point in competitive markets. According to the provided content, the return on investment (ROI) for these renovations is strong:…
-
How does the Required Installation Depth Affect the Total Cost per Helical Pier?
Read More »: How does the Required Installation Depth Affect the Total Cost per Helical Pier?The installation depth is a primary driver of the total cost per helical pier because the relationship between depth and expense is directly proportional. As the depth increases, the cost rises due to several specific factors: Because soil conditions vary—even…
-
How Much does a New Garage Door Cost with Installation in Denver?
Read More »: How Much does a New Garage Door Cost with Installation in Denver?ACN Construction provides garage door installation services in Denver using a custom-quote pricing model. The provided text does not list specific flat-rate prices or a general cost range because project totals depend on several variables identified during a site inspection.…
-
What Factors besides Material Costs Influence the Final Price of a Helical Pier Project?
Read More »: What Factors besides Material Costs Influence the Final Price of a Helical Pier Project?The final price of a helical pier project is influenced by several factors beyond basic material costs, primarily driven by site-specific conditions and logistical requirements. According to ACN Construction, these variables include: Related FAQs
