| GRAFTON - Physical Attributes | FIPS Code=25030 |
| Weighted Average of Agricultural Value Groups | 9.9050 |
| Weighted Average of Forest Value Groups | 3.9525 |
| Weighted Average of the Ancillary Soil Interpretations Ratings for Onsite Sewage Disposal | 4.2380 |
| Percent Area of Town with Slope Greater than 15 Per Cent | 20.16 |
Agricultural Value Groups provide a relative ranking to compare the agricultural value of STATSGO map units. A value of 1 has the highest potential for agriculture and a value of 11 has the lowest.
Forest Value Groups provide a relative ranking to compare the value for timber production of STATSGO map units. A value of 1 has the highest potential for growing and harvesting timber production and a value of 6 has the lowest.
The purpose of the septic value group is to compare the STATSGO map units for community development using suitability for onsite sewerage disposal as a guide. There are many other considerations for community development that are not part of this ranking. The scale is 1 to 10, with 1 being the best for support of a conventional inground septic system and 10 assigned where most map unit components are unsuited for a septic system.