N.H. Admin. Code § Lan 503.04
Every survey of real property in this state shall fall under one of 3 classifications. These classifications and minimum requirements shall be as specified in Table 500.1, Survey Classification Precision and Accuracy:
Table 500.1 Survey Classification, Precision and Accuracy
SURVEY CLASSIFICATION | U for Urban Suburban Industrial Commercial Condominium Multi-unit residential | R for Rural | F for Farmland Woodlots |
PRECISION MEASUREMENTS | (conventional closed traverse) | ||
Unadjusted Linear Misclosure | 1:10,000 | 1:5,000 | 1:300 |
Min. Scale Graduation of Instrument | 20 sec. | 30 sec. | 1 deg. |
Distance Measurement | EDM/Steel tape | EDM/Steel tape | Steel tape/ stadia |
Elev. Used to Determine Property Lines | 0.2' +/- | 0.5' +/- | n/a |
ACCURACY MEASUREMENTS (GPS survey or survey adjusted using least squares)
Minimum positional tolerances of land property corners computed least squares adjustment at the 95% confidence level.
U (urban | R (rural) | F (farmland) | |
Local Accuracy of directly occupied corners | 0.05 ft (1.7cm) + 1:10000 | 0.25 ft (8cm) +1:5000 | 1.6 ft (50cm) +1.3:00 |
Local Accuracy of | |||
control supporting the survey | 0.03 ft (1cm) + 1:10000 | 0.13 ft (4cm) + 1:5000 | 0.66 ft (20cm) + 1:300 |
N.H. Admin. Code § Lan 503.04
#5934, eff 12-9-94, EXPIRED: 12-9-00
New. #7425, INTERIM, eff 1-13-01, EXPIRED: 7-12-01
New. #7549, eff 8-25-01; ss by #9340, eff 1-1-09