Indiana Administrative Code
Title 327 - WATER POLLUTION CONTROL DIVISION
Article 8 - PUBLIC WATER SUPPLY
Rule 3.4 - Public Water System Wells
Section 3.4-11 - Production well minimum diameter
Current through September 18, 2024
Authority: IC 13-14-8; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3-1; IC 13-18-4-1
Affected: IC 13-11-2; IC 13-13-5-1; IC 13-18-2
Sec. 11.
(a) The minimum inside diameter of a production well casing shall be five (5) inches.
(b) The minimum inside diameter of a production well casing shall be in accordance with the following table:
Table 11-1
Production Well Casing Minimum Diameter Requirements (inches) Based on Outside Diameter of Pump Assembly
Outside Diameter of Pump Assembly 4 | Minimum (Actual) Inside Diameter of Well Casing 5 |
5 | 6 |
6 | 8 |
8 | 10 |
10 | 12 |
12 | 14 |
14 | 16 |
16 | 20 |
18 | 22 |
20 | 24 |
22 | 26 |
For a pump assembly with an outside diameter of between four (4) inches and twenty-two (22) inches but not appearing on this table, linear interpolation shall be used to determine the minimum inside diameter of the production well casing. For a pump assembly with an outside diameter greater than twenty-two (22) inches, the minimum inside diameter of the production well casing shall be at least one and twenty-five hundredths (1.25) times the outside diameter of the pump assembly.