Chapter General §101. Definitions [formerly paragraph 1: 001]


§1615. Water Supply and Distribution Systems



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§1615. Water Supply and Distribution Systems

A. General. Every mobile/manufactured home site shall be provided with an individual branch water service line delivering potable water. The outlet of the branch water service line shall terminate on the left side of the site of the mobile/manufactured home.

B. Minimum Size. Water service lines to each mobile/manufactured home site shall be sized to provide a minimum of 17 gpm (1.1 L/s) at the point of connection with the mobile/manufactured home's water distribution system. All water service lines shall be a minimum of 3/4-inch.

C. Separate Service Shutoff. A separate service shutoff valve shall be installed in each water service line. Per §617.A of this code, such separate shutoff valve shall be a full port ball valve.

D. Water Service Connections. The water service connection from the water service line to the mobile/manufactured home shall be not less than 1/2-inch diameter. A rigid pipe shall not be used. Flexible metal tubing is permitted. Fittings at either end shall be of a quick disconnect type not requiring any special tools or knowledge to install or remove.

E. Water Supply System Design. The water supply system shall be designed to provide a minimum of 150 gallons (568 L) per day for each mobile/manufactured home, plus such additional volume as may be required for fire protection of the park, service buildings and other community facilities.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2898 (November 2012).

§1617. Mobile/Manufactured Home Connections

A. Responsibility. When it is evident that there exists, or may exist, a violation of these rules, the owner, operator, lessee, person in charge of the park or any other person causing a violation shall cause it to be corrected immediately or disconnect the service connections and mobile/manufactured home drain connection from the respective park water service line and sewer lateral.

B. Drain Connections. Mobile/manufactured home drain connections shall be of approved semi-rigid pipe having smooth interior surfaces of not less than 3-inch inside diameter. Drain connections shall be equipped with a standard quick disconnect screw, clamp type fitting or solvent welder, not less in size than the outlet. Drain connections shall be gastight and no longer than necessary to make the connection between the mobile/manufactured home outlet and the trap inlet on the site.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2898 (November 2012).

§1619. Service Buildings

A. Each mobile/manufactured home park serving travel trailers shall have at least one service building to provide minimum sanitation and laundry facilities in accord with §1509 of this code.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2898 (November 2012).

§1621. Maintenance

A. All devices or safeguards required by this Chapter shall be maintained in good working order by the owner, operator, or lessee of the mobile/manufactured home park or his designated agent.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2898 (November 2012).

§1623. Individual Mobile/Manufactured Homes

A. Individual mobile/manufactured homes located within previously constructed mobile/manufactured home parks shall be provided with a trailer trap in accord with §1003.E of this code.





Figure 1623.ATrailer Trap and Vent

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2898 (November 2012).

Chapter 17. Sewerage System Regulations
[formerly Appendix EPrivate Sewage Disposal]

§1701. General

A. Refer to Part XIII (Sewage Disposal) of the State of Louisiana Sanitary Code (LAC 51:XIII) for applicable sewage disposal regulations.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2899 (November 2012).

Chapter 18. Appendices

§1801. Scope

A. The provisions of the appendices contained in this Chapter are designed for informational purposes only. When the word "shall' is used in one or more provisions of this Chapter, it is advisable to take the provision seriously and as though it were an actual requirement. Doing so will assist in ensuring compliance with the actual requirements of Chapters 1-17.

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2899 (November 2012).

§1803. Appendix ARoof Drain Sizing Method

A. Sizing Example. The following example gives one method of sizing the primary drain system and sizing the scuppers in the parapet walls. This method converts the roof area to an equivalent roof area for a 4-inch rate of rainfall so that Tables 1111.A and 1111.B of this code can be used as printed. The method described in §1111.B.2 of this code converts Tables 1111.A and 1111.B of this part to tables for the rate of rainfall specified for the area.

1. Problem: Given the roof plan in Figure 1803.A.1 of this Part and the site location in Birmingham, Alabama, size the primary roof drain system and size the scuppers, denoting the required head of water above the scupper for the structural engineer.

NOTE: For the purposes of this appendix the following metric conversions are applicable:

1 in = 25.4 mm

1 ft = 305 mm

1 ft2 = 0.0929 m2



Figure 1803.A.1Example Roof Plan

2. Solution:

Step a. From Figure 1111.E of this Part, the 100 year 60 minute precipitation is 3.75 inches per hour.

Step b. Each vertical drain must carry 2,500 sq ft of roof area at 3.75 inches per hour of rainfall. To convert to an area for a 4 inch per hour rainfall to enter LAC 51:XIV.Table 1111.A do this:

2,500 ÷ 4 x 3.75 = 2,344 sq ft.

Enter LAC 51:XIV.Table 1111.A until you find a diameter pipe that will carry 2,344 sq ft. A minimum 4-inch vertical drain is required.

Step c. Horizontal Drain

2,500 sq ft.

To convert to an area for use in LAC 51:XIV.Table 1111.B do this:

2,500 ÷ 4 x 3.75 = 2,344 sq ft

Enter LAC 51:XIV.Table 1111.B until you find a diameter pipe that will carry 2,344 sq ft.

A minimum 4-inch diameter pipe with a 1/4 inch per foot slope will carry 2,650 sq ft. A minimum 4-inch diameter drain on a 1/4 inch per foot slope is required.

Step d. Horizontal Drain

5,000 sq ft.

To convert to an area for use in LAC 51:XIV.Table 1111.B do this:

5,000 ÷ 4 x 3.75 = 4,688 sq ft.

Enter LAC 51:XIV.Table 1111.B until you find a diameter pipe that will carry 4,688 sq ft. A 5-inch diameter pipe with a 1/4 inch per foot slope will carry 4,720 sq ft. A minimum 5-inch diameter drain on a 1/4 inch per foot slope is required.

Step e. Horizontal Drain

10,000 sq ft.

To convert to an area for use in LAC 51:XIV.Table 1111.B do this:

10,000 ÷ 4 x 3.75 = 9,375 sq ft.

Enter LAC 51:XIV.Table 1111.B until you find a diameter pipe that will carry 9,375 sq ft. An 8-inch diameter pipe on 1/4 inch per foot slope will carry 16,300 sq ft but a 6-inch will carry only 7,550 sq ft; therefore, use an 8-inch diameter drain on a 1/4 inch per foot slope.

Step f. From Figure 1113.C of this Part, the rate caused by a 100 year 15 minute precipitation is 7.2 inches per hour. The scuppers must be sized to carry the flow caused by a rain fall rate of 7.2 inches per hour.

Step g. Each scupper is draining 2,500 sq ft of roof area. To convert this roof area to an area for use with LAC 51:XIV.Table 1803.A.2 do this:

2,500 ÷ 4 x 7.2 = 9,375 sq ft = 4,500 sq ft.

Enter LAC 51:XIV.Table 1803.A.2 to find a length and head that will carry 4,500 sq ft or more. From LAC 51:XIV.Table 1803.A.2 a 12-inch wide weir with a 4-inch head carries 6,460 sq ft. Use 12-inch wide x 5-inch high scuppers at four locations. A height of 5 inches is needed to assure an open area above the 4-inch head.



Step h. Notify the structural engineer that the design of the roof structure must account for a height of water to the scupper entrance elevation plus 4 inches for the required head to cause design flow.



Figure 1803.A.2Example Scupper

Table 1803.A.2

Scupper Sizing Table

Roof Area (Sq ft)

Head (H) Inches

Length (L) of Weir (Inches)




4

6

8

12

16

20

24

1

273

418

562

851

1,139

1,427

1,715

2

734

1,141

1,549

2,365

3,180

3,996

4,813

3

1,274

2,023

2,772

4,270

5,768

7,267

8,766

4

1,845

2,999

4,152

6,460

8,766

11,073

13,381

6

2,966

5,087

7,204

11,442

15,680

19,918

24,160


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