5.2 Pre-Inspection Document Review and Inspector Support Equipment

Pre-Inspection Preparation and Desktop Document Review

1. Reviewing Active Permits and Regulatory Conditions

Every site is governed by a specific hierarchy of federal, state, and local authorizations. Prior to the field walkthrough, the inspector verifies the active permit requirements, including:

• NPDES Construction General Permit (CGP) or Multi-Sector General Permit (MSGP): Checking the active Notice of Intent (NOI) tracking number, permitted operators (co-permittees), inspection frequency (7-day vs. 14-day schedule, or heightened frequency for sensitive waters), and stabilization completion deadlines (14 calendar days when $\le 5.0\text{ acres}$ are disturbed at any one time vs. 7 calendar days when $> 5.0\text{ acres}$ are disturbed or when discharging to sediment/nutrient-impaired or Tier 2/2.5/3 waters).
• Natural Buffer Mandate: Confirming whether the project borders a Water of the United States (WOTUS), which requires maintaining an undisturbed 50-foot natural buffer (or an enhanced 100-foot natural buffer for Tier 2, Tier 2.5, Tier 3, or sediment/nutrient-impaired waters under the EPA CGP, unless equivalent sediment removal is engineered).
• CWA Section 404 and Section 401 Permits: Reviewing U.S. Army Corps of Engineers (USACE) Section 404 dredge-and-fill limits (such as Ordinary High Water Mark boundaries, wetland impact acreage ceilings, and culvert crossing conditions) and State Section 401 Water Quality Certification special conditions (such as numeric turbidity limits or in-water work moratoriums during fish spawning).
• Endangered Species Act (ESA) & National Historic Preservation Act (NHPA) Conditions: Identifying any mapped exclusion zones, seasonal clearing restrictions, or archaeological buffer zones.
• Local MS4 Grading and Erosion Control Permits: Checking municipal operating hours, local dust-control rules, and bond conditions.

2. Reviewing the Approved SWPPP / ESCP Narrative and Current Site Maps

The CESSWI studies the Stormwater Pollution Prevention Plan (SWPPP) or Erosion and Sediment Control Plan (ESCP) narrative and civil drawings to understand:

• The current construction phase (e.g., initial clearing and grubbing, mass earthwork/rough grading, underground utility installation, vertical building construction, or final landscaping/stabilization);
• The delineated Limits of Disturbance (LOD), total disturbed acreage currently open, and contributing drainage sub-basins;
• The exact locations, dimensions, and standard installation details for all specified erosion, sediment, runoff, and good-housekeeping BMPs; and
• All designated stormwater discharge points (outfalls), receiving waters, and storm sewer inlets.

3. Reviewing Prior Inspection Reports, the Corrective Action Log, and NOVs

Reviewing the site's compliance history transforms a generic walk into a targeted verification audit. The CESSWI examines:

• Previous signed inspection reports to spot chronic problem areas (such as a recurring seep on a cut slope or an entrance pad that repeatedly tracks mud onto a collector street);
• The Corrective Action Log to compile an itemized list of open deficiencies, repairs whose 7-calendar-day completion deadline is approaching or overdue, and recently logged repairs that require visual confirmation and closure photography today; and
• Any active regulatory Notices of Violation (NOVs), Stop Work Orders, or administrative compliance schedules.

4. Checking Historical and Forecasted Weather Data

Before departing for the site, the CESSWI checks National Oceanic and Atmospheric Administration (NOAA) / National Weather Service (NWS) radar data, local weather station precipitation totals from the past 24 to 72 hours, the 48-to-72-hour precipitation forecast (probability of precipitation, expected storm depth, and intensity), and the on-site rain gauge log. This weather check determines whether today's visit is:

1. A routine scheduled inspection (7-day or 14-day interval);
2. A post-storm event inspection triggered within 24 hours of a storm producing $\ge 0.25\text{ inches}$ of rain (or snowmelt discharge); or
3. A pre-storm readiness inspection ahead of a forecasted storm event, where the priority is verifying that inlet protection is clean, basin skimmers are functional, and exposed stockpiles/concrete washouts are secured before rain begins.

5. Site Arrival, Check-In Protocol, and On-Site SWPPP Binder Audit

Upon arriving at the project, the inspector never wanders unannounced into active heavy-equipment zones. Standard arrival protocol requires:

1. Checking in at the construction trailer or site office, signing the visitor/safety log, and presenting identification or regulatory credentials;
2. Notifying the Site Superintendent, Project Manager, or Environmental Compliance Manager of the inspection's purpose and inviting them (or a designated representative) to accompany the walkthrough;
3. Reviewing daily site-specific safety hazards, including active haul road traffic patterns, overhead crane lifts, controlled rock blasting schedules, deep utility trenching, or concrete pump operations; and
4. Auditing the on-site SWPPP binder (either immediately prior to or immediately after the physical walk) to confirm that the permit notice, signed NOI, delegation letters, training logs, rain gauge log, red-lined site maps, and signed Corrective Action Log are current and available on site.

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Inspector Support Equipment Checklist (SAOP 6 Test Objective 4)

To perform defensible measurements, sampling, and documentation in the field, a CESSWI carries a standardized kit of Personal Protective Equipment (PPE), documentation gear, measurement tools, and water quality sampling equipment (Review Manual Section 7.3.2).

Comprehensive CESSWI Support Equipment Matrix