Other States:
NEW MEXICO
Population: 1,819,046

Information on the state of New Mexico 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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Steve Walker, Program Manager, or
R. Brian Schall, Environmental Specialist
New Mexico Environment Department
1190 St. Francis Drive
Santa Fe, New Mexico 87502
(505) 827-1400
(505) 476-8541 (fax)

steve_walker@nmenv.state.nm.us

brian_schall@nmenv.state.nm.us

http://www.nmenv.state.nm.us/NMEDregs/dwcsb/20nmac73.html

 

Regulations, Statutes & State Codes:
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New Mexico State Regulations

New Mexico Constitutions, Statutes and Codes

Liquid Waste Disposal Regulations
20 NMAC 7.3
October 1997

Onsite regulations for New Mexico were last updated in October 1997. Currently, the regulations are under revision, which may be changes to the existing regulation or an entirely new one. No effective date has been set.

In New Mexico, any technology or product can be considered for installation on a case-by-case basis. Approved for use are:
· Various aerobic units, most with ANSI Std. 40 certifications; trickling filters; and sand filters; and
· Various drainfield products-Chambers, multi-pipe, polystyrene aggregate, tire chips, and in-drains.
State Code contains a section on application for variances for situations not specifically covered by the regulations.

Surface discharge is not an option for onsite disposal systems in New Mexico.

State Code allows for drainfield area/size reductions based on the meeting of secondary standards. Those technologies considered for drainfield reduction include chambers, polystyrene aggregate, and large diameter pipe.

No funding program exists to assist individual homeowners with either replacing failing systems or installing new systems, and there are no plans to develop such a program. The Clean Water Revolving Loan program exists for governmental/quasi-governmental entities. Questions regarding funding may be directed to Richard Rose, Program Engineer, NMED Construction Grants Program, at the address above, by phoning (505) 827-9691, or by emailing richard_rose@nmenv.state.nm.us

Onsite wastewater demonstration, research, or testing projects are ongoing in the state. Information may be obtained from:

Dr. Adrian Hanson, P.E.
Associate Professor
Civil, Agricultural, and Geological Engineering Department
MSC 3CE
New Mexico State University
PO Box 30001
Las Cruces, NM 88003-8001
(505) 646-3032
athanson@nmsu.edu

New Mexico Code does not currently recognize or require management programs/contracts or districts to monitor and maintain onsite systems or individual liquid waste systems. However, this is an item to be considered during upcoming rule revision. Although a local agency has the authority to adopt or require maintenance/management programs, there is only one local government in New Mexico-Bernalillo County-that has its own program. Local programs must be at least as strict as the state regulations.

The State tracks the annual number of permits issued for new construction and system repair or replacement. There is a single application form with boxes to check for new construction. A new database developed a year ago allows queries on the reason for the permit; whereas, the old database would not. These records are maintained on a State database with the hard copies kept at the field offices.

State Code defines a failed system as one that does not operate as permitted, does not provide a level of treatment as least as effective as that provided by systems that meet the requirements of the regulations, or that poses a hazard to public health or degrades a body of water. The state does not maintain records concerning failed systems.

The State requires that onsite system installers be licensed through the Construction Industries Division as a general plumbing or excavating contractor only. There is no specific certification for onsite wastewater. A list of certified individuals is not maintained. Regarding licensure or certification to perform site evaluations/inspections, New Mexico has no regulations covering who may or may not conduct inspections or site evaluations.

Questions pertinent to municipal wastewater regulations may be directed to:

Maura Hanning, Program Manager
NMED Ground Water Quality Bureau
(505) 827-2945
maura_hanning@nmenv.state.nm.us

 

Quick Facts:
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Total number of onsite systems: Estimated at 194,000; 1990 U.S. census reports about
160,000 systems.

Number of new systems installed each year: Approx 8000.

Failure definition: Surfacing sewage.

Number or proportion of systems presently failing: 20%.

Number or proportion repaired annually: About 1600 p.a. are repaired or replaced.

Number or proportion replaced annually: See above.

Number or proportion of repairs or replacements that require alternative technology (e.g.,
sand filters, pressure dosing):
Mounds and sand filters are in common use; in recent years sand
filters have accounted for about 10-15% of replacements; the use of peat biofilters is also
increasing.

Number or proportion of repairs or replacements that require advanced technology (e.g.,
disinfection, nutrient removal):
Surface applications require disinfection, and about 500 p.a.
are installed; nitrate reduction may account for 50 systems per year.

Cost of a conventional septic system installation: $1600; range, $500-$15,000.

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
NEW MEXICO 1,515,069 632,058 525,244 90,385 6,660 9,769 452,934 161,068 18,056
COUNTIES
BERNALILLO 480,577 201,235 189,700 10,388 797 350 182,973 17,552 710
CATRON 2,563 1,552 426 995 34 97 215 1,261 76
CHAVES 57,849 23,386 20,922 2,096 306 62 18,922 4,340 124
CIBOLA 23,794 9,692 7,701 1,222 63 706 6,351 2,557 784
COLFAX 12,925 8,265 6,868 1,176 46 175 5,986 2,191 88
CURRY 42,207 16,906 15,406 1,393 97 10 14,558 2,236 112
DE BACA 2,252 1,329 933 372 0 24 720 599 10
DONA ANA 135,510 49,148 42,342 6,437 300 69 31,893 17,002 253
EDDY 48,605 20,134 18,865 1,166 70 33 15,146 4,923 65
GRANT 27,676 11,349 8,555 2,396 228 170 7,069 4,055 225
GUADALUPE 4,156 2,149 1,860 278 0 11 1,422 716 11
HARDING 987 614 312 286 9 7 199 383 32
HIDALGO 5,958 2,413 1,622 735 18 38 1,524 851 38
LEA 55,765 23,333 18,870 4,288 160 15 18,384 4,818 131
LINCOLN 12,219 12,622 10,246 2,124 77 175 7,914 4,545 163
LOS ALAMOS 18,115 7,565 7,548 17 0 0 7,375 183 7
LUNA 18,110 7,766 5,240 2,438 59 29 4,528 3,155 83
MCKINLEY 60,686 20,933 16,026 2,651 296 1,960 11,958 2,704 6,271
MORA 4,264 2,486 1,270 905 94 217 366 1,766 354
OTERO 51,928 23,177 18,714 3,114 228 1,121 15,677 7,051 449
QUAY 10,823 5,576 4,616 934 16 10 3,452 2,103 21
RIO ARRIBA 34,365 14,357 6,851 5,835 1,084 587 4,286 9,238 833
ROOSEVELT 16,702 6,902 5,434 1,461 5 2 4,536 2,347 19
SANDOVAL 63,319 23,667 18,893 3,671 283 820 14,942 7,568 1,157
SAN JUAN 91,605 34,248 29,257 2,917 737 1,337 19,917 11,020 3,311
SAN MIGUEL 25,743 11,066 8,539 2,109 226 192 6,465 4,077 524
SANTA FE 98,928 41,464 30,916 9,808 485 255 27,207 13,599 658
SIERRA 9,912 6,457 4,949 1,446 47 15 3,776 2,622 59
SOCORRO 14,764 6,289 4,982 1,110 56 141 3,625 2,433 231
TAOS 23,118 12,020 5,861 4,952 508 699 3,393 7,660 967
TORRANCE 10,285 4,878 2,468 2,111 115 184 1,419 3,351 108
UNION 4,124 2,299 1,476 768 35 20 1,308 962 29
VALENCIA 45,235 16,781 7,576 8,786 181 238 5,428 11,200 153

 

Onsite Demonstration Programs:
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There is a peat biofilter demonstration for the northern portion of the state, and a
nitrogen/nitrate reduction demonstration for the southern half; further information not available.

Onsite Management Communities:
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Pena Blanca