EP 1110-1-18
24 Apr 00
(1) True Craters. These are formed when an ordnance item penetrates the ground and
explodes. The size varies with the depth of penetration, size of the ordnance, and the geology of
the site. They can be identified by striation marks leading out from the crater, the slanted sides,
and a raised lip around the crater edge.
(2) False Craters. These are formed by large unexploded projectiles and are actually just a
point of entry. A false crater has vertical sides, flat bottom, and non-raised lips. False craters can
be as large as 10 feet in diameter.
(3) Ordnance Items or Fragments. It may be possible to find intact OE items at the surface.
In many cases, however, only fragments or parts will be found. In training ranges, the detonation
or impact may shatter the item into many unrecognizable pieces. Open Burn/Open Detonation
(OB/OD) operations will create the same effect.
(4) Soil Stains. An unnatural soil color may indicate bulk explosive contamination. The
particular color of soil stain is not a very good indicator of the type of explosive due to
weathering effects and the vast number of possible explosive mixtures. Only chemical analysis
can provide reliable explosive identification. The only responsibility of the personnel performing
the PAE is to note these areas in the site visit report.
6-6. Inventory Project Report.
a. General. The results of the PAE are reported in an INPR. The district executes the
INPR.
b. Types of INPRs. The MSC Commander uses the information in the INPR to make
eligibility determinations. An INPR may be classified as positive, negative, or NDAI.
(1) A positive INPR is one that reports an eligible property with an eligible project. The
INPR Approval Memorandum authorizes the project eligibility and initiation of additional ROE,
easement, or other access agreement negotiation.
(2) A negative INPR is one that reports on a property that is ineligible for DERP-FUDS
funding.
(3) An NDAI INPR is one that reports on an eligible property at which there are no eligible
hazards (i.e., ineligible project). Ineligible OE projects in an NDAI INPR will be confirmed by
the OE MCX.
c. Contents. The contents of the INPR are dependent upon the property eligibility, project
eligibility, and project category. Table 6.1 lists the documents required for the INPR. These
documents include the Property Survey Summary Sheet, the FDE, Project Summary Sheet(s),
Risk Assessment, and a cost estimate.
6-6
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