Map © OpenStreetMap contributors
Phase 2 ESA Cost in Missouri
Quick Price Estimate
Typical Range: $4,250 - $21,250
Missouri Phase 2 ESA costs run 15% below the national base rate, reflecting the state’s regional cost index for environmental fieldwork and laboratory services.
A Phase 2 Environmental Site Assessment is the invasive follow-up to a Phase 1 ESA. Where the Phase 1 reviews records and inspects the site, the Phase 2 collects soil, groundwater and vapor samples and sends them to a laboratory to confirm or rule out contamination. Phase 2 work follows the ASTM E1903-19 standard.
The range above is wide for a reason: unlike a Phase 1, a Phase 2 has no fixed scope. What you pay in Missouri is set almost entirely by how many samples the work plan calls for and which laboratory methods those samples need. The sections below break that down so you can read a quote rather than just compare bottom lines.
Missouri Phase 2 ESA Cost by Scope
| Scope | Typical Cost | When It Applies |
|---|---|---|
| Limited Investigation | $4,250 - $8,500 | Single area of concern, few samples |
| Standard Investigation | $8,500 - $12,750 | Multiple borings, groundwater sampling |
| Comprehensive Investigation | $12,750 - $21,250 | Complex sites, monitoring wells, vapor testing |
| Extended Investigation | $21,250+ | Large sites, multiple contaminant types |
Most Missouri transactions land in the standard investigation band — $8,500 to $12,750.
Phase 1 vs Phase 2 ESA Cost in Missouri
| Phase 1 ESA | Phase 2 ESA | |
|---|---|---|
| Missouri cost | $1,700 - $3,825 | $4,250 - $21,250 |
| Method | Records review, site reconnaissance, interviews | Soil, groundwater and vapor sampling with laboratory analysis |
| Standard | ASTM E1527-21 | ASTM E1903-19 |
| Typical timeline | 2-3 weeks | 14-25 days |
| Triggered by | Any commercial transaction or refinance | A REC identified in the Phase 1 |
In Missouri that is a 2.5×–5.6× step up on the environmental line of the due diligence budget. Full comparison: Phase 1 vs Phase 2 ESA. Local Phase 1 pricing: Missouri Phase 1 ESA cost.
Phase 2 ESA Costs in Missouri Metro Markets
Phase 2 pricing is driven by scope rather than by street address, but mobilization distance and local laboratory access do move the number. These are the Missouri markets we track, with their Phase 1 pricing as the local reference point:
| Market | Phase 1 ESA Cost | Phase 2 Starting Point |
|---|---|---|
| Kansas City | $1,819 - $4,093 | from $4,548 |
| St. Louis | $1,802 - $4,055 | from $4,505 |
| Springfield | $1,700 - $3,825 | from $4,250 |
The “starting point” column applies each market’s own Phase 1 cost relativity to the national Phase 2 base rate. Treat it as an entry price for a limited investigation, not a quote.
Scope, Method and Timeline
Scope drives the price, and scope does not change at the Missouri line. Per-boring and per-well rates, laboratory suites, the four investigation methods, and the 14–25 day timeline are published in full on the Phase 2 ESA cost guide, alongside vapor intrusion and what counts as a REC.
Get competitive Phase 2 ESA quotes or browse environmental consultants serving Missouri.
Frequently Asked Questions
How much does a Phase 2 ESA cost in Missouri?
Phase 2 ESA costs in Missouri typically range from $4,250 to $21,250, with most transactions in the $8,500–$12,750 band. That sits 15% below the national base rate on the state’s regional cost index. Kansas City is the largest Missouri market we track — see the metro table above for its entry pricing.
Who regulates Phase 2 ESA findings in Missouri?
Phase 2 findings are assessed against state cleanup standards, and the state agency — not your consultant — decides what reporting or remedial obligations follow an exceedance. Confirm which program your consultant is screening against before fieldwork begins.
How long does a Phase 2 ESA take in Missouri?
About 14-25 days end to end, covering work plan development, field investigation, laboratory analysis and report preparation. Laboratory turnaround is normally the constraint.
Who pays for a Phase 2 ESA in Missouri?
Typically the buyer, as part of due diligence. Where contamination is confirmed, the cost is often negotiated into the purchase price or credited by the seller. See who pays for due diligence.