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MISSISSIPPI
Population: 2,844,658

Information on the state of Mississippi is available for the following topics. To review this information, click on the links below.

Contacts| Regulations, Statutes & State Codes | Quick Facts | Septic Stats

Onsite Demonstration Programs | Onsite Management Communities

 

 

Contacts:
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Ralph Turnbo, Jr., Director, or
Eugene Herring, Wastewater Program Specialist
Mississippi State Department of Health
PO Box 1700
Jackson, Mississippi 39215-1700
(601) 576-7695
(601) 576-7632 (fax)

rturnbo@msdh.state.ms.us

eherring@msdh.state.ms.us

http://www.msdh.state.ms.us/

 

Regulations, Statutes & State Codes:
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Mississippi State Regulations

Mississippi Constitutions, Statutes and Codes

Individual Onsite Wastewater Disposal
Regulation 2.0
February 1997

Onsite regulations for Mississippi were last updated July 1, 1996; however, the Design Standards are being revised to include tire chips and chamber systems. The revisions have, at this time, not been approved by the Board of Health. In addition, the Division of Onsite Wastewater has, with an advisory committee, undertaken to review/revise the Design Standards where necessary during 2002.

Those technologies approved for use in Mississippi for onsite wastewater treatment and disposal include:
Subsurface Disposal
· Septic tank or aerobic treatment unit (ATU) and
o Aggregate subsurface disposal,
o Large diameter gravelless pipe subsurface disposal,
o Multi-pipe subsurface disposal,
o Expanded polystyrene (EPS) subsurface disposal, and
o Elevated sand mound.
· ATU and approved drip disposal,
· Surface application maintained on the property of the generator (multi-point surface discharge or spray irrigation),
· ATU with chlorinated discharge,
· Septic tank and sand filter with chlorinated discharge, plant rock filter with chlorinated discharge, or lagoon with chlorinated discharge.

New innovative technologies can be used under an experimental or research protocol. The system must be installed on property suitable for the installation of a currently approved technology. There must be adequate space for the installation of the experimental or research system and the pre-designated standard system so that, if the system under study fails, the standard system can be installed. This is documented to the homeowner before any installation is done to insure the property owner will be adequately served with a functioning wastewater system.

Surface discharge is an option for onsite systems for secondary treated chlorinated effluent maintained on the property of the generator, first approved by the health department. Those allowed technologies include ATUs with chlorinated discharge, plant rock filter with chlorinated discharge, or lagoon with chlorinated discharge. Systems approved by the health department are contained on the property of the generator and do not require an NPDES permit. The MDEQ Office of Pollution Control is the only agency that can approve discharge off the property with an NPDES permit.

Mississippi State Code does not allow for drainfield area/size reductions.

No funding program exists to assist homeowners replacing failing systems or installing new systems. There are no plans to develop such a mechanism.

There is a demonstration project (repair of failing onsite wastewater systems) in the state. For information, contact Turnbo (above).

Mississippi Code does not recognize management programs/contracts or management districts to monitor and maintain onsite systems or individual liquid waste systems. Local agencies do not have authority to adopt or require maintenance/management programs.

The number of permits issued annually for new construction or system repair or replacement is not tracked in Mississippi. The current wastewater law does not require an approval or final inspection of new systems in the state. Only those installations for which the property owner makes a request are inspections and/or approval conducted.

In Mississippi, a failed system is one where there is presence of improperly treated wastewater on the surface of the ground. The most common reason for system failure is improper or no maintenance. There is also failure of some systems due to improper installation and construction.

The State has a licensing/certification program for installers and inspectors of onsite wastewater treatment/disposal systems. In Mississippi, the county environmentalist and licensed professional engineers are licensed/certified to perform site evaluations/inspections.

Information relevant to municipal wastewater regulations is available by contacting:

Rickey Terry, Chief
Municipal & Private Facilities
Department of Environmental Quality, Office of Pollution Control
(601) 961-5115
Rickey_Terry@deq.state.ms.us

 

Quick Facts:
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Total number of onsite systems: Approximately 425,000; about 40% of housing is not
connected to sewers; 1990 U.S. census reports about 390,000 systems.

Number of new systems installed each year: 5000 estimated.

Failure definition: Surfacing of effluent, or effluent leaving the property of the generator.

Number or proportion of systems presently failing: NA, but aerobic pretreatment is employed
at a rate of greater than 60% in areas with restrictive soils, suggesting that failure rates for
conventional systems can be high.

Number or proportion repaired annually: NA

Number or proportion replaced annually: NA

Number or proportion of repairs or replacements that require alternative technology (e.g.,
sand filters, pressure dosing):
Alternative systems are used in a majority of installations in
some locales.

Number or proportion of repairs or replacements that require advanced technology (e.g.,
disinfection, nutrient removal):
Local knowledge has resulted in scattered application of
advanced systems, but hard data are NA.

Cost of a septic system installation: typically $1500-$5000; range, $1000-$10,000.

Cost of a centralized sewer tie-in (including fees and cost of the sewer lateral): NA

 

Septic Stats:
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TOTAL PERSONS TOTAL HOUSING UNITS PUBLIC SYSTEM DRILLED WELL DUG WELL OTHER PUBLIC SEWER SEPTIC TANK OTHER MEANS
MISSISSIPPI 2,573,216 1,010,423 882,496 106,407 16,040 5,480 585,185 387,406 37,832
COUNTIES
ADAMS 35,356 14,715 14,207 401 34 73 10,229 4,190 296
ALCORN 31,722 13,704 12,837 477 328 62 6,020 7,075 609
AMITE 13,328 5,695 2,984 2,222 448 41 1,106 3,883 706
ATTALA 18,481 7,674 6,578 581 313 202 3,397 3,471 806
BENTON 8,046 3,379 1,171 1,730 385 93 693 2,063 623
BOLIVAR 41,875 14,514 12,577 1,672 177 88 11,332 2,838 344
CALHOUN 14,908 6,260 5,872 215 78 95 2,610 3,159 491
CARROLL 9,237 3,948 3,341 437 118 52 939 2,255 754
CHICKASAW 18,085 6,997 6,459 447 42 49 3,252 3,480 265
CHOCTAW 9,071 3,539 3,209 172 51 107 1,025 1,996 518
CLAIBORNE 11,370 4,099 3,906 109 48 36 1,758 2,082 259
CLARKE 17,313 7,065 5,843 1,050 99 73 2,357 4,335 373
CLAY 21,120 7,737 7,082 563 57 35 4,435 3,120 182
COAHOMA 31,665 11,495 10,576 738 138 43 9,315 1,871 309
COPIAH 27,592 10,260 9,661 458 73 68 4,785 4,848 627
COVINGTON 16,527 6,535 6,078 401 35 21 1,751 4,163 621
DESOTO 67,910 24,472 21,758 2,326 283 105 14,981 9,092 399
FORREST 68,314 27,740 26,954 745 41 0 21,199 6,444 97
FRANKLIN 8,377 3,555 2,534 909 81 31 1,014 1,870 671
GEORGE 16,673 6,663 2,686 3,422 473 82 1,051 5,376 236
GREENE 10,220 3,864 2,432 1,222 149 61 778 2,754 332
GRENADA 21,555 8,712 8,139 468 82 23 6,239 2,225 248
HANCOCK 31,760 16,561 9,374 6,609 435 143 8,371 7,921 269
HARRISON 165,365 67,813 56,936 10,176 679 22 55,015 12,379 419
HINDS 254,441 99,860 98,544 1,005 226 85 89,771 9,281 808
HOLMES 21,604 7,972 7,311 515 69 77 4,698 2,728 546
HUMPHREYS 12,134 4,231 3,535 592 52 52 2,620 1,409 202
ISSAQUENA 1,909 698 462 189 38 9 148 539 11
ITAWAMBA 20,017 8,116 7,156 305 538 117 1,645 5,592 879
JACKSON 115,243 45,542 35,367 9,198 855 122 33,236 12,041 265
JASPER 17,114 6,700 6,450 143 62 45 1,314 4,454 932
JEFFERSON 8,653 3,167 3,008 90 27 42 1,089 1,701 377
JEFFERSON DAVIS 14,051 5,336 4,949 317 37 33 1,023 3,895 418
JONES 62,031 25,044 24,306 509 144 85 11,724 12,936 384
KEMPER 10,356 4,151 3,904 128 48 71 858 2,733 560
LAFAYETTE 31,826 12,478 10,798 1,311 227 142 6,165 5,763 550
LAMAR 30,424 11,849 10,713 1,005 125 6 5,566 6,062 221
LAUDERDALE 75,555 31,232 28,736 2,114 232 150 19,735 10,819 678
LAWRENCE 12,458 5,160 4,631 434 63 32 1,131 3,685 344
LEAKE 18,436 7,614 6,675 702 142 95 1,948 5,222 444
LEE 65,581 25,971 25,124 742 97 8 15,983 9,558 430
LEFLORE 37,341 13,799 12,525 1,012 232 30 11,856 1,574 369
LINCOLN 30,278 12,133 7,441 4,104 502 86 4,949 6,361 823
LOWNDES 59,308 23,117 19,900 2,409 732 76 14,041 8,686 390
MADISON 53,794 20,761 19,986 458 71 246 15,762 4,469 530
MARION 25,544 10,132 8,227 1,721 151 33 3,303 6,323 506
MARSHALL 30,361 10,984 4,289 5,629 937 129 3,276 7,015 693
MONROE 36,582 14,285 12,761 952 438 134 6,877 7,052 356
MONTGOMERY 12,388 4,987 4,734 120 60 73 2,750 1,856 381
NESHOBA 24,800 9,770 9,122 510 108 30 3,973 4,959 838
NEWTON 20,291 8,095 6,483 1,329 232 51 3,169 4,413 513
NOXUBEE 12,604 4,645 3,438 839 291 77 1,958 2,297 390
OKTIBBEHA 38,375 13,861 13,482 257 57 65 8,986 4,508 367
PANOLA 29,996 11,482 9,789 1,219 269 205 4,730 6,012 740
PEARL RIVER 38,714 15,793 10,277 4,993 451 72 5,918 9,744 131
PERRY 10,865 4,292 3,345 776 159 12 1,120 3,029 143
PIKE 36,882 14,995 11,306 3,300 330 59 7,787 6,901 307
PONTOTOC 22,237 9,001 8,073 766 138 24 2,502 5,888 611
PRENTISS 23,278 9,155 8,690 330 117 18 3,546 4,801 808
QUITMAN 10,490 3,880 3,423 327 84 46 2,223 1,439 218
RANKIN 87,161 31,872 30,868 772 101 131 20,155 10,971 746
SCOTT 24,137 9,488 9,011 357 75 45 3,742 5,320 426
SHARKEY 7,066 2,290 1,765 488 30 7 1,425 828 37
SIMPSON 23,953 9,374 8,522 593 184 75 2,918 5,568 888
SMITH 14,798 5,850 5,519 265 43 23 1,279 3,556 1,015
STONE 10,750 4,148 2,535 1,482 112 19 1,358 2,764 26
SUNFLOWER 32,867 10,167 9,229 788 84 66 7,880 2,087 200
TALLAHATCHIE 15,210 5,492 4,581 657 160 94 2,210 2,717 565
TATE 21,432 7,474 3,876 3,011 471 116 2,516 4,537 421
TIPPAH 19,523 7,846 6,790 776 185 95 2,981 3,947 918
TISHOMINGO 17,683 8,455 7,904 246 246 59 2,421 5,722 312
TUNICA 8,164 2,990 2,601 331 46 12 1,695 1,130 165
UNION 22,085 9,104 6,750 2,088 248 18 3,177 5,519 408
WALTHALL 14,352 5,643 3,365 1,918 286 74 853 4,222 568
WARREN 47,880 19,512 19,065 349 50 48 12,126 7,072 314
WASHINGTON 67,935 24,567 22,319 1,916 274 58 20,775 3,503 289
WAYNE 19,517 7,723 6,247 1,260 132 84 2,362 4,947 414
WEBSTER 10,222 4,326 4,098 131 66 31 1,484 2,380 462
WILKINSON 9,678 4,242 3,787 315 94 46 1,912 1,622 708
WINSTON 19,433 7,613 7,355 126 59 73 3,211 3,985 417
YALOBUSHA 12,033 5,414 5,120 224 38 32 2,326 2,629 459
YAZOO 25,506 9,549 9,035 414 68 32 5,347 3,745 457

 

Onsite Demonstration Programs:
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There is a 3-year grant to demonstrate the repair of failing systems.

Onsite Management Communities:
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There is no information on Onsite Management Communities in Mississippi.