{
  "title": "Phase 1 Environmental Site Assessment Cost by State, 2026",
  "source": "https://phase1esaquotes.com/cost-data/",
  "license": "CC BY 4.0 with attribution to Phase 1 ESA Quotes (phase1esaquotes.com)",
  "lastUpdated": "2026-07-18",
  "methodologyNote": "Compiled from published industry cost guides, not independently measured and not a directory convenience sample. State adjustments are industry estimates reflecting consultant demand, regulatory database density, and market competition, not a government fee schedule. See the sources list for every figure's origin.",
  "nationalBaseline": {
    "low": 2000,
    "high": 4500,
    "average": 3250,
    "currency": "USD"
  },
  "turnaround": {
    "standardLabel": "2 to 4 weeks",
    "standardDetail": "20 to 30 calendar days from authorization to final report delivery is the typical range reported across environmental consulting firms.",
    "rushLabel": "5 to 10 business days",
    "rushDetail": "Rush service is available from most firms for a premium, commonly cited at 25% to 40% above standard pricing.",
    "validityDays": 180
  },
  "propertyTypePremiums": [
    {
      "type": "Junkyard or salvage yard",
      "premium": "+60%"
    },
    {
      "type": "Gas station or former fuel site",
      "premium": "+50%"
    },
    {
      "type": "Dry cleaner (past or present)",
      "premium": "+40%"
    },
    {
      "type": "Manufacturing facility",
      "premium": "+40%"
    },
    {
      "type": "Shooting range",
      "premium": "+35%"
    },
    {
      "type": "Marina or boat storage",
      "premium": "+35%"
    },
    {
      "type": "Auto repair or body shop",
      "premium": "+30%"
    },
    {
      "type": "Funeral home",
      "premium": "+30%"
    }
  ],
  "states": [
    {
      "code": "AL",
      "name": "Alabama",
      "adjustmentPct": -15,
      "low": 1700,
      "high": 3825
    },
    {
      "code": "AK",
      "name": "Alaska",
      "adjustmentPct": 30,
      "low": 2600,
      "high": 5850
    },
    {
      "code": "AZ",
      "name": "Arizona",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "AR",
      "name": "Arkansas",
      "adjustmentPct": -20,
      "low": 1600,
      "high": 3600
    },
    {
      "code": "CA",
      "name": "California",
      "adjustmentPct": 35,
      "low": 2700,
      "high": 6075
    },
    {
      "code": "CO",
      "name": "Colorado",
      "adjustmentPct": 15,
      "low": 2300,
      "high": 5175
    },
    {
      "code": "CT",
      "name": "Connecticut",
      "adjustmentPct": 25,
      "low": 2500,
      "high": 5625
    },
    {
      "code": "DE",
      "name": "Delaware",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "DC",
      "name": "District of Columbia",
      "adjustmentPct": 35,
      "low": 2700,
      "high": 6075
    },
    {
      "code": "FL",
      "name": "Florida",
      "adjustmentPct": 5,
      "low": 2100,
      "high": 4725
    },
    {
      "code": "GA",
      "name": "Georgia",
      "adjustmentPct": -5,
      "low": 1900,
      "high": 4275
    },
    {
      "code": "HI",
      "name": "Hawaii",
      "adjustmentPct": 45,
      "low": 2900,
      "high": 6525
    },
    {
      "code": "ID",
      "name": "Idaho",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "IL",
      "name": "Illinois",
      "adjustmentPct": 10,
      "low": 2200,
      "high": 4950
    },
    {
      "code": "IN",
      "name": "Indiana",
      "adjustmentPct": -15,
      "low": 1700,
      "high": 3825
    },
    {
      "code": "IA",
      "name": "Iowa",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "KS",
      "name": "Kansas",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "KY",
      "name": "Kentucky",
      "adjustmentPct": -15,
      "low": 1700,
      "high": 3825
    },
    {
      "code": "LA",
      "name": "Louisiana",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "ME",
      "name": "Maine",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "MD",
      "name": "Maryland",
      "adjustmentPct": 20,
      "low": 2400,
      "high": 5400
    },
    {
      "code": "MA",
      "name": "Massachusetts",
      "adjustmentPct": 30,
      "low": 2600,
      "high": 5850
    },
    {
      "code": "MI",
      "name": "Michigan",
      "adjustmentPct": -10,
      "low": 1800,
      "high": 4050
    },
    {
      "code": "MN",
      "name": "Minnesota",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "MS",
      "name": "Mississippi",
      "adjustmentPct": -20,
      "low": 1600,
      "high": 3600
    },
    {
      "code": "MO",
      "name": "Missouri",
      "adjustmentPct": -15,
      "low": 1700,
      "high": 3825
    },
    {
      "code": "MT",
      "name": "Montana",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "NE",
      "name": "Nebraska",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "NV",
      "name": "Nevada",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "NH",
      "name": "New Hampshire",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "NJ",
      "name": "New Jersey",
      "adjustmentPct": 30,
      "low": 2600,
      "high": 5850
    },
    {
      "code": "NM",
      "name": "New Mexico",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "NY",
      "name": "New York",
      "adjustmentPct": 40,
      "low": 2800,
      "high": 6300
    },
    {
      "code": "NC",
      "name": "North Carolina",
      "adjustmentPct": -5,
      "low": 1900,
      "high": 4275
    },
    {
      "code": "ND",
      "name": "North Dakota",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "OH",
      "name": "Ohio",
      "adjustmentPct": -10,
      "low": 1800,
      "high": 4050
    },
    {
      "code": "OK",
      "name": "Oklahoma",
      "adjustmentPct": -15,
      "low": 1700,
      "high": 3825
    },
    {
      "code": "OR",
      "name": "Oregon",
      "adjustmentPct": 15,
      "low": 2300,
      "high": 5175
    },
    {
      "code": "PA",
      "name": "Pennsylvania",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "RI",
      "name": "Rhode Island",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "SC",
      "name": "South Carolina",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "SD",
      "name": "South Dakota",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "TN",
      "name": "Tennessee",
      "adjustmentPct": -10,
      "low": 1800,
      "high": 4050
    },
    {
      "code": "TX",
      "name": "Texas",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "UT",
      "name": "Utah",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "VT",
      "name": "Vermont",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "VA",
      "name": "Virginia",
      "adjustmentPct": 10,
      "low": 2200,
      "high": 4950
    },
    {
      "code": "WA",
      "name": "Washington",
      "adjustmentPct": 20,
      "low": 2400,
      "high": 5400
    },
    {
      "code": "WV",
      "name": "West Virginia",
      "adjustmentPct": -20,
      "low": 1600,
      "high": 3600
    },
    {
      "code": "WI",
      "name": "Wisconsin",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    },
    {
      "code": "WY",
      "name": "Wyoming",
      "adjustmentPct": 0,
      "low": 2000,
      "high": 4500
    }
  ],
  "sources": [
    {
      "label": "Apprais.ai, Phase 1 ESA Cost 2026: 50-State Guide",
      "url": "https://apprais.ai/phase-1-environmental-cost/"
    },
    {
      "label": "A3 Environmental Consultants, Phase 1 ESA cost guide",
      "url": "https://a3e.com/4-factors-in-the-average-cost-of-phase-i-environmental/"
    },
    {
      "label": "GEO Forward, Phase I Environmental Site Assessment Cost",
      "url": "https://www.geoforward.com/phase-i-environmental-cost/"
    },
    {
      "label": "CIP Texas, Phase 1 Environmental Site Assessment Cost in Texas",
      "url": "https://www.ciptexas.com/phase-1-environmental-site-assessment-cost"
    },
    {
      "label": "RSB Environmental, Phase 1 ESA Timeline",
      "url": "https://rsbenv.com/phase-1-esa-timeline/"
    }
  ]
}