DA Form 7577 PDF: Treated Water Sampling Guide

DA Form 7577 PDF: Treated Water Sampling Guide – U.S. Army personnel, Preventive Medicine (PVNTMED) technicians, and field water operators rely on DA Form 7577 (Treated Water Sampling Field Data Sheet) to document treated water quality during deployments, training exercises, and field operations. This critical form ensures that water from Reverse Osmosis Water Purification Units (ROWPU), municipal sources, bottled water, water buffaloes, tankers, and distribution systems meets safety standards and protects troops from waterborne illness.

Prescribed by TB MED 577 (Sanitary Control and Surveillance of Field Water Supplies), DA Form 7577 accompanies every treated water sample sent for analysis. Accurate completion is mandatory for Advanced Water Testing (AWT) and basic potability testing.

Quick Download:
Official DA Form 7577 PDF (NOV 2005) – Army Publishing Directorate
(Latest version as of 2026 – fillable, two-page form)

Why DA Form 7577 Matters for U.S. Military Water Quality?

Clean water is a force multiplier. Contaminated treated water can cause outbreaks that degrade readiness faster than enemy action. DA Form 7577 standardizes data collection so labs, commanders, and PVNTMED teams can:

  • Track Sample ID, geolocation, and collector details for traceability.
  • Record on-site measurements (pH, turbidity, temperature, TDS, total coliform, free-available chlorine/FAC).
  • Document water type, collection point, intended use, and exposure risk.
  • Support operational risk management (ORM) and compliance with Tri-Service Field Water Standards (TSFWS).

The form is required whenever PVNTMED personnel or authorized operators collect samples from ROWPU systems, water tankers, blivets, tap/faucets, or bottled water in theater. USACHPPM sampling kits include the form (or equivalent data fields) to minimize lab rejection errors.

When to Use DA Form 7577?

  • During field water purification operations (ROWPU, TWPS, lightweight purifiers).
  • Routine surveillance of treated water in base camps, forward operating bases, or training areas.
  • Advanced Water Testing (AWT) shipments to higher-level labs.
  • Basic potability testing (BPT) after 30-minute chlorine contact time.
  • Any time treated water is certified for drinking, secondary drinking, or non-drinking uses (hygiene, cooking, showers).

Note: Raw water uses a different process/form. This form is strictly for treated water.

Step-by-Step: How to Fill Out DA Form 7577? (Official Instructions)

The form is two pages with instructions on the reverse. Follow this exact sequence (sample labels must match the form exactly).

  1. Sample ID (top of form)
    Format: CCC_LLLLLL_MMM_YYDDD

    • CCC = 3-letter country code
    • LLLLLL = First 6 letters of camp name
    • MMM = Sequential sample number for that camp/day (01W, 02W…)
    • YYDDD = Last two digits of year + Julian day (e.g., 26015 for 15 Jan 2026)
  2. Country, Location, Site, Operation
    Enter the theater, camp name, specific building/PX/tanker, and operation name (e.g., OIF, OEF, or current named operation).
  3. Sample Date (YYYYMMDD) & Sample Time
    Use military 24-hour format. Record on both form and bottle label.
  4. Collecting Unit, Collector’s Name, Phone, Email
    Full unit designation and contact info (e.g., [email protected]).
  5. Percent of Personnel Exposed & Exposure Duration
    Select ranges to assess population risk.
  6. Water Type (select one)
    • T = Tap/Faucet
    • DISINFECTED / ROWPU / MUNICIPAL / BOTTLED / D = Water Buffalo / WT = Water Tanker / WB = Water Blivet / FRESH

    If ROWPU, Municipal, or Disinfected Fresh: Complete 15a–15d (Operating Unit, Source of Water, Primary Treatment, ROWPU ID).
    If Bottled: Add Manufacturer, Bottling Location, Brand, Lot #.

  7. Collection Point (select all that apply)
    T, B, WT, WB, DS (distribution system), TF (treatment facility), ROWPU.
  8. Water Use
    • Primary Drinking
    • Secondary Drinking
    • Non-Drinking
      If secondary or non-drinking, identify primary drinking source and list other uses (hygiene, showering, cooking, recreation, other).
  9. Estimated Drinking Rate
    ≤5 L/day, >5 L/day, or exact rate.
  10. Field Measurements (critical for lab correlation)
      1. pH
      1. Turbidity (NTU)
      1. Temperature (°C)
      1. TDS (mg/L)
      1. Total Coliform
      1. FAC (ppm) – must show ≥2 mg/L after 30-min contact for provisional approval
  11. Geolocation (GPS required)
    Latitude, Longitude (decimal degrees), Datum, MGRS.
    Classified locations: Do NOT enter here. Email with Sample ID to [email protected].
  12. Sampling Site Graphic (optional sketch) and Notes (water description, observations, additional bottled brands, etc.).

Pro Tip: Complete the form in the field before sealing samples. Double-check that Sample ID matches the bottle label exactly.

  • TB MED 577 (Multiservice – Army, Navy, Air Force) – Full guidance on field water sampling and surveillance.
  • USACHPPM/USAPHC water sampling kits (contain DA Form 7577 or equivalent).
  • DA Form 7576 (FWSVA Summary Data Sheet) – Often used together for water system vulnerability assessments.
  • Water Quality Analysis Set – Preventive Medicine (WQAS-PM) for on-site testing.

Frequently Asked Questions (FAQs)

Is DA Form 7577 still current in 2026?
Yes. The November 2005 version remains the official form issued by the Army Publishing Directorate. No superseding version has been released.

Can I fill it out digitally?
Yes – the official PDF is fillable. Many units use Adobe Acrobat or online tools before printing/signing.

Who is authorized to collect samples?
PVNTMED personnel, trained water treatment operators, or designated unit preventive medicine technicians.

Where do I send completed forms?
With the physical samples to the supporting laboratory. Keep a copy for unit records.

What if I make a mistake?
Line through errors, initial, and add correct information. Never use correction fluid on official sampling forms.

Download Your Copy Today

DA Form 7577 Treated Water Sampling Field Data Sheet – Official PDF

U.S. Army soldiers and units: Bookmark this page and the official Army Publishing Directorate link for quick access during pre-deployment checks or field operations.

Maintaining water quality saves lives and sustains the mission. Proper use of DA Form 7577 is a key part of that effort.