Dept of Environmental Services-NHIssuing agency·New Hampshire·via the NH DAS Procurement & Support Services portal• Conduct field data collection in the Bethlehem Quadrangle and deliver a seamless bedrock
geologic map that is accurate with respect to the field data, and internally consistent in the interpreted delineation of map units, in electronic point and line format; where working on paper becomes absolutely necessary, and with prior discussion with and approval of the state geologist, a paper scan may be submitted, which must be legible to ensure the delineation of bedrock geologic map units in the area.
• Collect data on the mineralogy, texture, lithology, contacts between lithologic units, strike and
dip (including faults), and other discontinuities with attention to structure, bedding, foliations,
and the trend and plunge of fold hinges and lineations at all bedrock outcrops and exposures that may be practicably accessed.
• With the exception of exposures that are too small spatially to be represented as a polygon on a
1:24,000-scale map product, mapped bedrock exposures shall be delineated as polygons rather than points. Larger and clearly defined bedrock exposures should be mapped as polygons, while small, isolated, or limited extent exposures may be recorded as points when polygon delineation is impractical.
• Collect high-quality photographs of major geologic features, which shall be provided to NHGS as
raw digital image files, separate from inclusion in a Word or PDF document.
• Permission will need to be obtained from landowners before entering private property, which
may be obtained in writing or verbally by speaking with landowners prior to property access; NHGS will provide documentation in the form of a letter from the state geologist explaining the purpose of the mapping and reason for access to private property.
• Laboratory analyses, as deemed appro
The contractor must conduct field data collection in the Bethlehem Quadrangle and deliver a seamless bedrock geologic map in electronic point and line format. Data collection includes mineralogy, texture, lithology, contacts, strike and dip, faults, and other discontinuities. Bedrock exposures shall be delineated as polygons where possible. High-quality photographs of major geologic features must be provided as raw digital image files. Permission from landowners must be obtained before entering private property. Laboratory analyses may include thin section preparation (up to 15 samples), crystallization ages (up to 2 samples), and detrital zircon analyses (up to 2 samples). The contractor must perform petrographic analyses, provide data output and interpretations, be available for a one-day field conference, participate in a Microsoft Teams-based map review, and produce a 1:24,000-scale geologic map in PDF format with 20 specified elements, including a minimum of one geologic cross-section and a companion document of 550 to 5,500 words.
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Source: New Hampshire DAS Procurement (solicitation 6a5f2ad7-1690-4c0b-9acd-9d5a04a8e7f3), retrieved via the NH DAS Procurement & Support Services portal. View the official posting, and always confirm requirements and deadlines with the issuing agency.
