Performance Standards for Specific Activities
Land Which May be Included as "Suitable Land" When Calculating Net Residential Density | |||||
|---|---|---|---|---|---|
Excessively Drained, Well-Drained, and Moderately Well-Drained1 | Poorly Drained and Somewhat Poorly Drained | Very Poorly Drained | Slopes Greater Than 33% | Borrow Pits | |
On public sewer: 100% | 75% | 40% | 50% | 67% | |
Not on public sewer: 100% | 50% | — | — | 33% | |
Notes: | |
|---|---|
1 Soil classification by the United States Soil Conservation Service. All "poorly drained" and "very poorly drained" soils are unsuitable for on-site sewage disposal, under the Maine State Plumbing Code. |
Average Slope of Land Between Tilled Land and Normal High-Water Elevation (percent) | Width of Strip Between Tilled Land and Normal High-Water Elevation (feet along surface of the ground) | |
|---|---|---|
0 to 4 | 50 | |
5 to 9 | 70 | |
10 to 14 | 90 | |
15 and over | 110 |
Diameter of Tree at 4 1/2 Feet Above Ground Level (inches) | Points | |
|---|---|---|
2 to 4 | 1 | |
Greater than 4 to 12 | 2 | |
Greater than 12 | 4 |
Average Slope of Land Between Exposed Mineral Soil and Normal High-Water Mark (percent) | Width of Strip Between Exposed Mineral Soil and Normal High-Water Mark (feet along surface of ground) | |
|---|---|---|
0 | 25 | |
10 | 45 | |
20 | 65 | |
30 | 85 | |
40 | 105 | |
50 | 125 | |
60 | 145 | |
70 | 165 |
Grade (percent) | Spacing (feet) |
|---|---|
0 to 2 | 250 |
3 to 5 | 200 to 135 |
6 to 10 | 100 to 80 |
11 to 15 | 80 to 60 |
16 to 20 | 60 to 45 |
21+ | 40 |
Number of Lots Served | ||
|---|---|---|
Standard | 1 | 2 or more |
Minimum roadway width (feet) | 12 | 16 |
Minimum subbase (heavy road gravel, maximum size 4 inches) (inches) | 12 | 15 |
Wearing surface (crushed gravel) (inches) | 2 | 2 |
Maximum length of dead end (feet) | 1,500 | 1,500 |
Maximum grade | 10% | 8% |
Minimum grade | 0.5% | 0.5% |
Turnaround at dead end | Hammerhead or T | Hammerhead or T |
Performance Standards for Specific Activities
Land Which May be Included as "Suitable Land" When Calculating Net Residential Density | |||||
|---|---|---|---|---|---|
Excessively Drained, Well-Drained, and Moderately Well-Drained1 | Poorly Drained and Somewhat Poorly Drained | Very Poorly Drained | Slopes Greater Than 33% | Borrow Pits | |
On public sewer: 100% | 75% | 40% | 50% | 67% | |
Not on public sewer: 100% | 50% | — | — | 33% | |
Notes: | |
|---|---|
1 Soil classification by the United States Soil Conservation Service. All "poorly drained" and "very poorly drained" soils are unsuitable for on-site sewage disposal, under the Maine State Plumbing Code. |
Average Slope of Land Between Tilled Land and Normal High-Water Elevation (percent) | Width of Strip Between Tilled Land and Normal High-Water Elevation (feet along surface of the ground) | |
|---|---|---|
0 to 4 | 50 | |
5 to 9 | 70 | |
10 to 14 | 90 | |
15 and over | 110 |
Diameter of Tree at 4 1/2 Feet Above Ground Level (inches) | Points | |
|---|---|---|
2 to 4 | 1 | |
Greater than 4 to 12 | 2 | |
Greater than 12 | 4 |
Average Slope of Land Between Exposed Mineral Soil and Normal High-Water Mark (percent) | Width of Strip Between Exposed Mineral Soil and Normal High-Water Mark (feet along surface of ground) | |
|---|---|---|
0 | 25 | |
10 | 45 | |
20 | 65 | |
30 | 85 | |
40 | 105 | |
50 | 125 | |
60 | 145 | |
70 | 165 |
Grade (percent) | Spacing (feet) |
|---|---|
0 to 2 | 250 |
3 to 5 | 200 to 135 |
6 to 10 | 100 to 80 |
11 to 15 | 80 to 60 |
16 to 20 | 60 to 45 |
21+ | 40 |
Number of Lots Served | ||
|---|---|---|
Standard | 1 | 2 or more |
Minimum roadway width (feet) | 12 | 16 |
Minimum subbase (heavy road gravel, maximum size 4 inches) (inches) | 12 | 15 |
Wearing surface (crushed gravel) (inches) | 2 | 2 |
Maximum length of dead end (feet) | 1,500 | 1,500 |
Maximum grade | 10% | 8% |
Minimum grade | 0.5% | 0.5% |
Turnaround at dead end | Hammerhead or T | Hammerhead or T |