**Cluster:** Set 2 hub (proof standard) — pairs with Set 1 architecture hub

**TL;DR:** Engineering buyers do not shortlist firms because of a “50-mile radius.” They shortlist when **scope + place + proof** line up. Service-area claims must be **region-shaped and evidence-backed**: projects or patterns, coverage, and jurisdictional honesty. Radius language is a sales sentence, not a trust strategy.

Who this is for

Environmental and geotechnical firms that:

  • already know which counties or metros they want, and
  • need a **proof standard** so marketing, BD, and principals stop arguing about location copy.

Architecture (when to build pages) lives in Stop Building Thin County Pages. This article is the **evidence standard** for every claim that survives onto those pages.

Why radius claims fail pre-RFP research

Before an RFP, buyers often:

  1. Search scope + geography,
  2. Open a few firm sites,
  3. Check whether experience looks real **here**,
  4. Build a mental shortlist.

A radius map fails step 3. It answers “how far we drive,” not “have you done work like ours under constraints like ours.”

Claim styleWhat buyers hearRisk
**Radius** (“within 75 miles”)Coverage theaterEasy to write; hard to believe; weak for search specificity
**Region + proof** (county/metro + service lines + patterns)Fit and risk reductionHarder to write; shortlist-ready

The service-area proof standard (four tests)

Every location claim should pass:

**1. Service-line specificity**

Name the **lines** in play (Phase I, Phase II, remediation, geotech investigation, etc.). “Full-service environmental” is not a line.

**2. Place honesty**

Name the **place layers** that are true: county/city, program context when it shapes scope, office/field coverage. Do not decorate with regs your staff will not stand behind.

**3. Pattern or project proof**

Publish **patterns** seniors approve (facility types, phases, deliverables) — or real projects when allowed. No invented metrics. See What Proof Makes a Service-Area Claim Believable?.

**4. Owner sign-off**

A named technical reviewer can initial the claim. If marketing owns it alone, it is not proof-ready.

If any test fails, demote the claim to a careful **mention** or silence — do not invent a county page. Scorecard: When Does a County Deserve Its Own Page?.

Region vs. radius (practical language)

**Prefer**

  • “In [County], we support [line] and [line] for [buyer types].”
  • “Comparable industrial sites in the metro” (when analogs are honest).
  • “Staffed coverage for field work in …” (when true).

**Avoid**

  • “Serving the greater X area and beyond.”
  • “#1 in the county.”
  • Find-and-replace county names on identical paragraphs.

Where proof lives on the site

AssetJob
**Practice-area / service-line pages**Spine for scope; market modules attach here first
**County page (optional)**Only if scorecard passes; satellite of service lines
**Location proof module**Reusable block seniors approve — Location proof modules
**One-page service-area plan**Operating artifact for owners — One-page plan

Failure modes when proof is missing: Why County Pages Fail Without Jurisdictional Proof.

30-day proof program (without thrash)

WeekAction
**1**Inventory current location claims; mark pass / fail / unknown against the four tests
**2**Build or fix proof modules for the top two **P** markets (from your service-line matrix)
**3**Rewrite one service-line page market block using region + proof language
**4**Re-score counties; promote **one per cycle; two only when both pass cleanly**

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