Delaware Administrative Code
Title 1 - Authorities, Boards and Commissions
700 - Delaware State Fire Prevention Commission
702 - Fire Protection in Building Construction
Chapter 6 - Standard for Fire Flow for Fire Protection
Section 702-6-7.0 - Dry Hydrants
Current through Register Vol. 28, No. 3, September 1, 2024
7.1 Where there is not a public water system or a central water system, the State Fire Marshal may require the installation of a dry hydrant at the nearest public body of water to provide access to a water source for fire protection for all buildings of less than 10,000 square feet of aggregate gross floor area.
7.2 The provision in subsection 7.1 of this Chapter for the providing of a dry hydrant shall also be meant that access to the dry hydrant and provisions for positioning fire apparatus to make use of the dry hydrant shall be provided.
7.3 The requirements of subsection 7.1 and subsection 7.2 of this Chapter shall meet the standards and specifications pursuant to the Construction Specifications for Dry Hydrant and Water Delivery Systems, Delaware 1991, prepared by the U. S. Department of Agriculture Soil Conversation Service and any updates thereto.
7.4 It is the responsibility of the developer, builder and/or owner to apply for and obtain any required permits for the installation of the dry hydrant.
7.5 It is the responsibility of the project developer, builder, and/or owner to provide the dry hydrants and any needed construction operations to place the dry hydrants in service.
7.6 All dry hydrants installed and accepted under this section shall be inspected, tested, and maintained in accordance with Regulation 703, Chapter 1, subsection 4.9.
Fire Flow Table 1*
The requirements of Fire Flow Table 1 apply to rural areas where public, private, or central water is not available and where specified elsewhere in these Regulations.
|
Occupancy |
Maximum Aggregate Gross Square Footage |
Provide a fire alarm system per Ch. 6, § 3.1.4 |
Minimum Set Back from all property lines |
Maximum Height |
Exposure Hazard on the Same Property |
Internal Fire Separation |
Apply |
|
One & Two - Family Detached Dwellings |
10,000 |
no |
15' |
3 Stories 35' |
10'+ |
n/a |
NFPA 1142 |
|
Multi-Family & Other Residential |
10,000 |
no |
15' |
3 Stories 35' |
10'+ |
n/a |
NFPA 1142 |
|
Rowhouses & Townhouses |
10,000 |
no |
15' |
3 Stories 35' |
10'+ |
2-Hr rated wall Reg. 701 Chapter 2 |
NFPA 1142 |
|
Assembly |
5,000 |
no |
15' |
1 Story 15' |
10'+ |
n/a |
NFPA 1142 |
|
Assembly1 |
5,001 to 10,000 |
YES |
15' |
2 Stories 30' |
10'+ |
n/a |
NFPA 1142 |
|
Health Care Business Education |
10,000 |
no no no |
15' |
2 Stories 30' |
10'+ |
n/a |
NFPA 1142 |
|
Storage Industrial Mercantile |
5,000 |
no no no |
15' |
To be reviewed on an individual basis |
15'+ |
n/a |
NFPA 1142 |
|
Storage1 Industrial1 Mercantile1 |
5,001 to 10,000 |
YES YES YES |
25' |
To be reviewed on an individual basis |
15'+ |
n/a |
NFPA 1142 |
|
Mini-Storage |
5,000 |
no |
15' |
2 Stories 30' |
15'+ |
n/a |
NFPA 1142 |
|
Mini-Storage |
5,001 to 10,000 |
no |
25' |
2 Stories 30' |
15'+ |
n/a |
NFPA 1142 |
1 A fire alarm signaling system shall be provided. See subsection 3.1.4.
*A-Fire Flow Table 1.
The requirements of Fire Flow Table 1 apply to rural areas where public, private or central water is not available. Where Exposure Hazard, Same Property (EHSP) or Minimum Set Back from all property lines (MSB) cannot be met, the following table may be utilized.
|
Maximum Aggregate Gross Square Footage |
Fire Separation Distance (or Exposure Hazard, Same Property) |
Exterior Wall Fire Resistance Rating |
|
|
One- and Two-Family Detached Dwellings |
10,000 |
Less than 10 feet |
1-Hour |
|
Multi-Family & Other Residential |
10,000 |
Less than 10 feet |
2-Hour |
|
Rowhouses & Townhouses |
10,000 |
Less than 10 feet |
2-Hour |
|
Assembly |
10,000 |
Less than 5 feet |
2-Hour |
|
5 to 10 feet |
1-Hour |
||
|
Health Care Business Education |
10,000 |
Less than 5 feet |
2-Hour |
|
5 to 10 feet |
1-Hour |
||
|
Storage Industrial Mercantile |
10,000 |
Less than 5 feet |
2-Hour |
|
5 to 15 feet |
1-Hour |
||
|
Mini Storage |
10,000 |
Less than 5 feet |
2-Hour |
|
5 to 15 feet |
1-Hour |
Fire Flow Table 2
The requirements of Fire Flow Table 2 apply to areas where there is a public, private, or central water system.
|
Occupancy |
Maximum Aggregate Gross Square Footage |
Internal Fire Separation |
Flow Required |
Hydrant Spacing |
|
One- and Two-Family Detached Dwellings 1 |
10,000 |
n/a |
500 GPM 20 PSI Residual Pressure 1 Hour Duration |
800 feet on center |
|
Other Residential1 |
10,000 |
n/a |
1,000 GPM 20 PSI Residual Pressure 1 Hour Duration |
800 feet on center |
|
Rowhouses1 & Townhouses1 |
10,000 |
2-Hr rated wall |
1,000 GPM 20 PSI Residual Pressure 1 Hour Duration |
800 feet on center |
|
Reg. 701 Chapter 2 |
||||
|
Assembly Health Care Business Education |
10,000 |
n/a |
1,000 GPM 20 PSI Residual Pressure 1 Hour Duration |
800 feet on center |
|
Storage Industrial Mercantile |
10,000 |
n/a |
1,500 GPM 20 PSI Residual Pressure 2 Hour Duration |
800 feet on center |
|
Mini-Storage |
10,000 |
n/a |
750 GPM 20 PSI Residual Pressure 1 Hour Duration |
800 feet on center |
1 Sites in New Castle County are subject to the provisions of New Castle County Code Chapter 40 Article 5. See Note on § 1.4.1 and § 1.4.2.
|
Note: Fire Flow Table 2, Hydrant Spacing. The phrase, "on center" is intended to represent the maximum distance fire hydrants are spaced from each other. Proper application of this intention would generally provide a fire department with a maximum "hose lay" to a hydrant that would not exceed 500 feet for One & Two Family Dwellings, and 400 feet for all other structures. |
Fire Flow Table 3 It is the intent of Fire Flow Table 3 to allow a credit for water flow that is available on site, but does not meet the full water flow requirements of Fire Flow Table 2. However, the available water flow on site shall be a minimum of 500 GPM, otherwise the requirements of Fire Flow Table 1 shall be applied to the site. This Table does not apply to new public, private, nor central water systems, including municipalities.
|
Occupancy |
Maximum Aggregate Gross Square Footage |
Minimum Set Back from all property lines |
Exposure Hazard on the Same Property |
Internal Fire Separation |
|
One- and Two-Family Dwellings, Multi-family, and Other residential |
10,000 |
*15' |
*10'+ |
n/a |
|
Rowhouses Townhouses |
10,000 |
*15' |
10'+ |
Two-Hour Rated Design Wall Reg. 701, Chapter 2 |
|
Assembly |
10,000 |
*15' |
*10'+ |
n/a |
|
Health Care Business Education |
10,000 |
*15' |
*10'+ |
n/a |
|
Storage Industrial Mercantile |
10,000 |
*25' |
*15'+ |
n/a |
|
Mini Storage |
5,000 |
*15' |
*15'+ |
n/a |
|
Mini Storage |
5,001 to 10,000 |
*25' |
*15'+ |
n/a |
|
Note: Fire Flow Table 3: For example, if 1,000 GPM is required for a 9,000 sq. ft. Business Occupancy business occupancy, but only 500 GPM is available, or 50%, then the required setbacks shall be reduced by 50% so that the Minimum Setback (MSB) from property lines would be 7.5 feet, instead of 15 feet, and the Exposure Hazard on the Same Property (EHSP) would be five feet, instead of ten feet. |
