Federal Capture Intelligence

Top DOI septic tank and related services contractors (NAICS 562991)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 Department of the Interior agency guide NAICS 562991 · Septic Tank and Related Services
Latest 12 months
$8.4M
Net obligations · Up $275.9K vs. $8.1M preceding
Prime contractors
143
With positive obligations in the latest 12 months

Research the DOI federal contracting market for septic tank and related services under NAICS 562991. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, and contract types, competition, and procurement methods.

Contract obligation trends for Septic Tank and Related Services at the Department of the Interior

Federal records show $33.6M in net obligations across 856 awards in Septic Tank and Related Services at the Department of the Interior from Oct 1, 2021 through Sep 10, 2026. This market accounts for 0.13% of $25.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations increased 3.4% from $8.1M to $8.4M. 51 prime contractors accounted for at least 80% of positive obligations in that latest period.

Fiscal-year activity

FY26 is year-to-date through Sep 10, 2026; earlier years show complete fiscal-year totals.

FY26 year-to-date: $7.6M versus $7.5M through the same date in FY25 (+1.4%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$4.8M346Complete
FY2023$6.1M373Complete
FY2024$6.7M387Complete
FY2025$8.3M390Complete
FY2026$7.6M396YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$33.6M
856 awards · 316 prime contractors
Latest 12-month movement
+3.4%
$8.4M vs. $8.1M
Leading eight prime share
34.3%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
0.13% of $25.8B in agency-wide net obligations.
Set-aside share when reported
75.3% of 681 awards with reported set-aside status.
Set-aside reporting
513 set aside · 168 no set-aside · 175 not reported

What changed in the last 12 months?

Sep 11, 2025–Sep 10, 2026, compared with Sep 11, 2024–Sep 10, 2025.

Market structure

How these findings are calculated

Findings are selected from matched-period changes in obligations, share, rank, funding offices, concentration, reported set-asides, material award actions, and agency-peer outliers. Related signals are combined, and only material evidence-backed changes are shown. Review the full methodology.

Federal contract obligations by funding office

See how positive obligations were attributed across funding offices in the 12 months ending Sep 10, 2026.

9.1% of positive obligations were attributed to PWR SF/SEA MABO(85000). That represents $770K, up $164K from the preceding 12 months.

Latest 12-month share of positive obligations; the gray segment represents all other reported offices.

  1. PWR SF/SEA MABO(85000)9.1% · $770K · up $164K
  2. WASHINGTON CONTRACTING OFFICE8.4% · $714K · down $63K
  3. IMR INTERMOUNTAIN REGION(1200)8.1% · $690K · down $172K
  4. PWR OLYM MABO(83000)6.6% · $558K · up $199K
  5. IMR ARIZONA(12400)5.8% · $490K · up $430K
  6. All other reported offices62.0% of positive obligations
View reported office rankings, comparisons, and evidence

USAspending assigns each award to a funding office. That office may differ from the requiring activity, program office, contracting office, individual buyer, or actual customer.

  1. Reported funding office

    PWR SF/SEA MABO(85000)

    #1Up 3 from #4

    Latest 12 months

    $770K

    9.1% of positive obligations

    Versus preceding 12 months

    +$164K

    5 active prime contractors · 25 awards

    View office comparison and evidence

    Reported obligations increased 27.0% from $606K to $770K. The office’s share of positive obligations moved from 7.4% to 9.1%, a change of +1.7 percentage points.

    The latest period contains 27 actions across 25 awards and 2 newly active prime contractors. The preceding period contained 5 active prime contractors and 28 awards.

  2. Reported funding office

    WASHINGTON CONTRACTING OFFICE

    #2Up 1 from #3

    Latest 12 months

    $714K

    8.4% of positive obligations

    Versus preceding 12 months

    −$63K

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations decreased 8.1% from $777K to $714K. The office’s share of positive obligations moved from 9.5% to 8.4%, a change of −1.1 percentage points.

    The latest period contains 5 actions across 2 awards. The preceding period contained 3 active prime contractors and 7 awards.

  3. Reported funding office

    IMR INTERMOUNTAIN REGION(1200)

    #3Down 1 from #2

    Latest 12 months

    $690K

    8.1% of positive obligations

    Versus preceding 12 months

    −$172K

    9 active prime contractors · 11 awards

    View office comparison and evidence

    Reported obligations decreased 20.0% from $862K to $690K. The office’s share of positive obligations moved from 10.5% to 8.1%, a change of −2.4 percentage points.

    The latest period contains 11 actions across 11 awards and 2 newly active prime contractors. The preceding period contained 10 active prime contractors and 12 awards.

  4. Reported funding office

    PWR OLYM MABO(83000)

    #4Up 2 from #6

    Latest 12 months

    $558K

    6.6% of positive obligations

    Versus preceding 12 months

    +$199K

    7 active prime contractors · 11 awards

    View office comparison and evidence

    Reported obligations increased 55.7% from $358K to $558K. The office’s share of positive obligations moved from 4.4% to 6.6%, a change of +2.2 percentage points.

    The latest period contains 16 actions across 11 awards and 3 newly active prime contractors. The preceding period contained 5 active prime contractors and 6 awards.

  5. Reported funding office

    IMR ARIZONA(12400)

    #5Up 23 from #28

    Latest 12 months

    $490K

    5.8% of positive obligations

    Versus preceding 12 months

    +$430K

    7 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations increased 708.0% from $61K to $490K. The office’s share of positive obligations moved from 0.74% to 5.8%, a change of +5.0 percentage points.

    The latest period contains 10 actions across 7 awards and 6 newly active prime contractors. The preceding period contained 2 active prime contractors and 2 awards.

    Leading award-level changes

  6. Reported funding office

    NER SERVICES MABO (43000)

    #6Up 19 from #25

    Latest 12 months

    $471K

    5.5% of positive obligations

    Versus preceding 12 months

    +$389K

    4 active prime contractors · 5 awards

    View office comparison and evidence

    Reported obligations increased 471.7% from $82K to $471K. The office’s share of positive obligations moved from 1.0% to 5.5%, a change of +4.5 percentage points.

    The latest period contains 7 actions across 5 awards and 3 newly active prime contractors. The preceding period contained 4 active prime contractors and 6 awards.

  7. Reported funding office

    PWR PORE MABO (84000)

    #7Up 9 from #16

    Latest 12 months

    $348K

    4.1% of positive obligations

    Versus preceding 12 months

    +$195K

    10 active prime contractors · 19 awards

    View office comparison and evidence

    Reported obligations increased 128.0% from $153K to $348K. The office’s share of positive obligations moved from 1.9% to 4.1%, a change of +2.2 percentage points.

    The latest period contains 30 actions across 19 awards and 3 newly active prime contractors. The preceding period contained 8 active prime contractors and 12 awards.

  8. Reported funding office

    NER SUPPLY MABO(45000)

    #8Rank unchanged

    Latest 12 months

    $348K

    4.1% of positive obligations

    Versus preceding 12 months

    +$68K

    6 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations increased 24.2% from $280K to $348K. The office’s share of positive obligations moved from 3.4% to 4.1%, a change of +0.7 percentage points.

    The latest period contains 8 actions across 7 awards and 1 newly active prime contractor. The preceding period contained 8 active prime contractors and 9 awards.

  9. Reported funding office

    NORTHEAST REGIONAL CONTRACTING

    #9Up 5 from #14

    Latest 12 months

    $346K

    4.1% of positive obligations

    Versus preceding 12 months

    +$173K

    8 active prime contractors · 10 awards

    View office comparison and evidence

    Reported obligations increased 100.0% from $173K to $346K. The office’s share of positive obligations moved from 2.1% to 4.1%, a change of +2.0 percentage points.

    The latest period contains 10 actions across 10 awards and 4 newly active prime contractors. The preceding period contained 7 active prime contractors and 8 awards.

  10. Reported funding office

    DOI, NPS CONOPS STRATEGIC

    #10New to the positive-obligation ranking

    Latest 12 months

    $269K

    3.2% of positive obligations

    Versus preceding 12 months

    +$269K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations rose from $0 to $269K. The office’s share of positive obligations moved from 0% to 3.2%, a change of +3.2 percentage points.

    The latest period contains 1 action across 1 award and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  11. Reported funding office

    SOUTHERN NEVADA DISTRICT OFFICE

    #20Down 10 from #10

    Latest 12 months

    $137K

    1.6% of positive obligations

    Versus preceding 12 months

    −$110K

    6 active prime contractors · 12 awards

    View office comparison and evidence

    Reported obligations decreased 44.4% from $247K to $137K. The office’s share of positive obligations moved from 3.0% to 1.6%, a change of −1.4 percentage points.

    The latest period contains 15 actions across 12 awards and 2 newly active prime contractors. The preceding period contained 4 active prime contractors and 8 awards.

  12. Reported funding office

    NEW MEXICO STATE OFFICE

    #36Down 19 from #17

    Latest 12 months

    $41K

    0.48% of positive obligations

    Versus preceding 12 months

    −$106K

    4 active prime contractors · 9 awards

    View office comparison and evidence

    Reported obligations decreased 72.0% from $147K to $41K. The office’s share of positive obligations moved from 1.8% to 0.48%, a change of −1.3 percentage points.

    The latest period contains 18 actions across 9 awards. The preceding period contained 6 active prime contractors and 11 awards.

  13. Reported funding office

    NATIONAL INTERAGENCY FIRE CENTER

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$985K

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations decreased 100.0% from $985K to $0. The office’s share of positive obligations moved from 12.0% to 0%, a change of −12.0 percentage points.

    The latest period contains 0 actions across 0 awards. The preceding period contained 3 active prime contractors and 11 awards.

    Leading award-level changes

  14. Reported funding office

    NCR REGIONAL CONTRACTING(30000)

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$398K

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations decreased 100.0% from $398K to $0. The office’s share of positive obligations moved from 4.9% to 0%, a change of −4.9 percentage points.

    The latest period contains 0 actions across 0 awards. The preceding period contained 4 active prime contractors and 4 awards.

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 234 awards had positive obligations totaling $8.9M. Simplified Acquisition was the leading reported procedure, accounting for 79.8% of positive obligations. Awards with a reported parent IDV accounted for 15.1%.

Leading award type
75.1%
Purchase Order
Leading reported procedure
79.8%
Simplified Acquisition
Reported parent IDV
15.1%
of positive obligations had a reported parent IDV
Median reported offers
4
201 of 234 awards reported offers

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 234 current awards and 241 preceding awards with positive net obligations.

Simplified Acquisition obligation share
79.8%
Down from 96.3% in the preceding period
How to read these changes

Directional color and the Up or Down labels show historical movement only. Green does not mean favorable and red does not mean unfavorable; neither predicts a future procurement method.

Same-NAICS comparison

Compared with the NAICS 562991 peer median, parent-IDV obligation share is 51.1 percentage points lower, reported full-and-open obligation share is 0.1 percentage points lower, delivery-order obligation share is 42.9 percentage points lower, and median positive award obligations are 20.2% higher.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share15.1%66.2%-51.1 pts
Reported full-and-open obligation share0%0.14%-0.1 pts
Delivery-order obligation share12.0%54.8%-42.9 pts
Median positive award obligations$20K$17K+20.2%
Peer cohort and comparison limits

The peer median gives each of the 3 eligible agency markets equal weight. The included agency markets are:

Agency mission, scale, and acquisition context can differ. Peer position does not establish market attractiveness or predict a future procurement method.

View buying-method details and data coverage

Award types

Reported valueAwardsPositive obligationsShare
Purchase Order(B)164$6.7M75.1%
Delivery Order(C)33$1.1M12.0%
Definitive Contract(D)14$870K9.8%
BPA Call(A)23$278K3.1%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)33$1.1M12.0%
BPA(E)23$278K3.1%
Not reported178$7.6M84.9%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Single Award(S)56$1.3M15.1%
Not reported178$7.6M84.9%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Simplified Acquisition(SP1)195$7.1M79.8%
Sp1(SIMPLIFIED ACQUISITION)24$1.2M13.4%
Sss(ONLY ONE SOURCE)1$340K3.8%
Only One Source(SSS)12$184K2.1%
Negotiated Proposal/Quote(NP)2$87K0.97%

Extent competed

Reported valueAwardsPositive obligationsShare
Competed Under SAP(F)186$6.9M77.9%
F(COMPETED UNDER SAP)20$1.1M12.0%
C(NOT COMPETED)1$340K3.8%
Not Competed Under SAP(G)9$166K1.9%
G(NOT COMPETED UNDER SAP)4$126K1.4%
Not Available for Competition(B)7$110K1.2%
Other reported values7$160K1.8%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Not reported234$8.9M100.0%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Urgency (FAR 6.302-2)(URG)2$374K4.2%
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)8$214K2.4%
SAP Non-Competition (FAR 13)(SP2)12$188K2.1%
Only One Source-Other (FAR 6.302-1 Other)(ONE)4$39K0.43%
Not reported208$8.1M90.8%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)208$7.3M82.0%
J(FIRM FIXED PRICE)25$1.5M17.2%
Fixed Price with Economic Price Adjustment(K)1$68K0.77%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Housekeeping- Trash/Garbage Collection(S205)53$2.8M31.7%
Housekeeping- Waste Treatment/Storage(S222)75$2.7M30.0%
Lease or Rental of Equipment- Toiletries(W085)40$1.1M12.6%
Maintenance of Sewage and Waste Facilities(Z1ND)7$456K5.1%
Housekeeping- Facilities Operations Support(S216)9$435K4.9%
Support- Professional: Other(R499)3$359K4.0%
Other reported values47$1.0M11.6%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
National Park Service(1443)126$6.3M71.3%
Bureau of Land Management(1422)61$1.5M17.1%
Bureau of Reclamation(1425)27$637K7.2%
U.S. Fish and Wildlife Service(1448)15$255K2.9%
Departmental Offices(1406)1$104K1.2%
Bureau of Safety and Environmental Enforcement(1436)1$24K0.27%
Other reported values3$16K0.18%

Awarding offices

Reported valueAwardsPositive obligationsShare
Imr Intermountain Region(1200)(140P12)9$821K9.2%
Pwr Sf/Sea Mabo(85000)(140P85)24$771K8.7%
Washington Contracting Office(140P21)1$610K6.9%
Pwr Olym Mabo(83000)(140P83)10$558K6.3%
Ner Services Mabo (43000)(140P43)6$495K5.6%
Imr Arizona(12400)(140P15)7$490K5.5%
Other reported values177$5.2M57.9%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
140P8523D0002(1443)21$529K6.0%
140P8323D0002(1443)4$230K2.6%
140P8526D0020(1443)1$180K2.0%
140R2025A0004(1425)3$51K0.58%
140P8326D0001(1443)1$50K0.56%
140L3922A0006(1422)1$50K0.56%
140L3924A0007(1422)2$46K0.52%
140P6325D0004(1443)1$39K0.44%
Other reported values22$170K1.9%
Not reported178$7.6M84.9%

Offers, award size, and timing

Median reported offers
4 median
201 reported · 33 not reported
Positive award obligations
$20K median
$8K–$42K middle 50%
Reported performance period
380 days (~12 months) median
234 reported · 0 not reported

Calculations group latest-period actions by award, retain awards with positive net obligations for share denominators, and use each award's latest reported USAspending procurement fields as of Sep 10, 2026. Blank competition, pricing, PSC, or parent-IDV values remain not reported; they are not inferred. Offer counts must be positive and below the FPDS 999 placeholder. Awarding organizations can differ from the funding agency that defines this page.

Top federal contractors

Latest 12-month market share, concentration, and complete prime contractor rankings across the period shown.

Prime contractor concentration
51 of 143prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
7.0%of positive obligations in the last 12 months
Leading four prime contractors
23.3%of positive obligations in the last 12 months
Leading eight prime contractors
34.3%of positive obligations in the last 12 months

Based on $8.7M in positive obligations during the 12 months ending Sep 10, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Sep 11, 2024–Sep 10, 2025.

Last 12mo obligation volume: Highest positive obligations first; net deobligations follow by magnitude; contractors with no activity in the last 12 months follow by all-period obligations. Ranks use the complete contractor list and remain fixed when search narrows the results.

15 leading contractors
  1. #1

    Last 12mo obligations

    $610K

    7.0%

    Dollar movement

    −$397K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for MAYES SEPTIC & PORT A POTS, LLC
    Obligations: prior → latest
    $1.0M → $610K
    −39.4%
    Share: prior → latest
    12.1% → 7.0%
    −5.0 percentage points
    All-period obligations
    $2.4M
    7.0% of all-period positive obligations · 9 awards
    Recorded activity
    Since May 2, 2022
    through Apr 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside03
    Not reported00
    Reported small business12
    All-period set-aside types
    • 4 · Total small business
  2. #2

    Last 12mo obligations

    $543K

    6.3%

    Dollar movement

    +$364K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    8 actions

    Historical and award details for TNT WASTE SERVICE LLC
    Obligations: prior → latest
    $180K → $543K
    +202.4%
    Share: prior → latest
    2.1% → 6.3%
    +4.1 percentage points
    All-period obligations
    $1.1M
    3.4% of all-period positive obligations · 8 awards
    Recorded activity
    Since Apr 6, 2022
    through Sep 1, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside43
    Reported no set-aside10
    Not reported00
    Reported small business53
    All-period set-aside types
    • 7 · Total small business
  3. #3

    Last 12mo obligations

    $529K

    6.1%

    Dollar movement

    +$125K

    vs. prior 12 months

    Last 12mo awards

    21 awards

    21 actions

    Historical and award details for MARIPOSA PORTABLE SANTITATION LLC
    Obligations: prior → latest
    $405K → $529K
    +30.8%
    Share: prior → latest
    4.8% → 6.1%
    +1.3 percentage points
    All-period obligations
    $2.6M
    7.6% of all-period positive obligations · 114 awards
    Recorded activity
    Since Nov 2, 2021
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported2124
    Reported small business2124
    All-period set-aside types

    None reported.

  4. #4

    Last 12mo obligations

    $340K

    3.9%

    Dollar movement

    +$340K

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for ROYAL FLUSH SEPTIC, LLC
    Obligations: prior → latest
    $0 → $340K
    Not comparable
    Share: prior → latest
    0% → 3.9%
    +3.9 percentage points
    All-period obligations
    $340K
    1.0% of all-period positive obligations · 1 award
    Recorded activity
    Since Jun 24, 2026
    through Aug 14, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  5. #5

    Last 12mo obligations

    $269K

    3.1%

    Dollar movement

    +$269K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for YORKSHIRE INDUSTRIES LLC
    Obligations: prior → latest
    $0 → $269K
    Not comparable
    Share: prior → latest
    0% → 3.1%
    +3.1 percentage points
    All-period obligations
    $269K
    0.79% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 19, 2026
    through Mar 19, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  6. #6

    Last 12mo obligations

    $230K

    2.6%

    Dollar movement

    +$230K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    5 actions

    Historical and award details for BRADY BRADSHAW LLC
    Obligations: prior → latest
    $0 → $230K
    Not comparable
    Share: prior → latest
    0% → 2.6%
    +2.6 percentage points
    All-period obligations
    $230K
    0.68% of all-period positive obligations · 5 awards
    Recorded activity
    Since Sep 17, 2025
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported50
    Reported small business50
    All-period set-aside types

    None reported.

  7. #7

    Last 12mo obligations

    $228K

    2.6%

    Dollar movement

    +$4K

    vs. prior 12 months

    Last 12mo awards

    12 awards

    20 actions

    Historical and award details for SUNTIFF, LLC
    Obligations: prior → latest
    $224K → $228K
    +1.8%
    Share: prior → latest
    2.7% → 2.6%
    −0.1 percentage points
    All-period obligations
    $472K
    1.4% of all-period positive obligations · 13 awards
    Recorded activity
    Since Sep 6, 2024
    through Sep 1, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside127
    Reported no set-aside00
    Not reported00
    Reported small business127
    All-period set-aside types
    • 13 · Total small business
  8. #8

    Last 12mo obligations

    $222K

    2.5%

    Dollar movement

    +$90K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    3 actions

    Historical and award details for PROVIZION LLC
    Obligations: prior → latest
    $132K → $222K
    +67.9%
    Share: prior → latest
    1.6% → 2.5%
    +1.0 percentage points
    All-period obligations
    $537K
    1.6% of all-period positive obligations · 4 awards
    Recorded activity
    Since May 7, 2024
    through Sep 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside21
    Reported no set-aside11
    Not reported00
    Reported small business32
    All-period set-aside types
    • 3 · Total small business
  9. #9

    Last 12mo obligations

    $218K

    2.5%

    Dollar movement

    $0

    no change vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for B & B PORTABLES, LLC
    Obligations: prior → latest
    $218K → $218K
    +0.0%
    Share: prior → latest
    2.6% → 2.5%
    −0.1 percentage points
    All-period obligations
    $437K
    1.3% of all-period positive obligations · 1 award
    Recorded activity
    Since Dec 26, 2024
    through Dec 22, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 1 · Total small business
  10. #10

    Last 12mo obligations

    $196K

    2.3%

    Dollar movement

    +$67K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    6 actions

    Historical and award details for AMERICAN DEBRIS BOX SERVICE, INC.
    Obligations: prior → latest
    $129K → $196K
    +51.6%
    Share: prior → latest
    1.6% → 2.3%
    +0.7 percentage points
    All-period obligations
    $357K
    1.1% of all-period positive obligations · 3 awards
    Recorded activity
    Since Jul 22, 2024
    through Aug 23, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside32
    Reported no set-aside00
    Not reported00
    Reported small business32
    All-period set-aside types
    • 3 · Total small business
  11. #11

    Last 12mo obligations

    $180K

    2.1%

    Dollar movement

    +$180K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for PRO PUMPING LLC
    Obligations: prior → latest
    $0 → $180K
    Not comparable
    Share: prior → latest
    0% → 2.1%
    +2.1 percentage points
    All-period obligations
    $184K
    0.54% of all-period positive obligations · 2 awards
    Recorded activity
    Since Jul 18, 2024
    through May 7, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported10
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  12. #12

    Last 12mo obligations

    $179K

    2.1%

    Dollar movement

    +$127K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    10 actions

    Historical and award details for A & G PUMPING, INC.
    Obligations: prior → latest
    $53K → $179K
    +240.4%
    Share: prior → latest
    0.63% → 2.1%
    +1.4 percentage points
    All-period obligations
    $382K
    1.1% of all-period positive obligations · 12 awards
    Recorded activity
    Since Apr 1, 2022
    through Aug 17, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside21
    Reported no set-aside21
    Not reported10
    Reported small business52
    All-period set-aside types
    • 2 · Total small business
  13. #13

    Last 12mo obligations

    $173K

    2.0%

    Dollar movement

    +$22K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    5 actions

    Historical and award details for BPM SERVICES INC
    Obligations: prior → latest
    $152K → $173K
    +14.2%
    Share: prior → latest
    1.8% → 2.0%
    +0.2 percentage points
    All-period obligations
    $925K
    2.7% of all-period positive obligations · 15 awards
    Recorded activity
    Since Feb 17, 2022
    through Jul 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside34
    Reported no set-aside00
    Not reported00
    Reported small business34
    All-period set-aside types
    • 15 · Total small business
  14. #14

    Last 12mo obligations

    $172K

    2.0%

    Dollar movement

    −$46K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for AFFIRM FITNESS L.L.C.
    Obligations: prior → latest
    $218K → $172K
    −21.1%
    Share: prior → latest
    2.6% → 2.0%
    −0.6 percentage points
    All-period obligations
    $520K
    1.5% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 24, 2024
    through May 1, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 1 · Total small business
  15. #15

    Last 12mo obligations

    $150K

    1.7%

    Dollar movement

    −$194K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    11 actions

    Historical and award details for WASTE AND WATER LOGISTICS, LLC
    Obligations: prior → latest
    $344K → $150K
    −56.3%
    Share: prior → latest
    4.1% → 1.7%
    −2.4 percentage points
    All-period obligations
    $1.5M
    4.3% of all-period positive obligations · 14 awards
    Recorded activity
    Since Dec 8, 2021
    through Jul 15, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside48
    Reported no set-aside12
    Not reported00
    Reported small business510
    All-period set-aside types
    • 12 · Total small business

Recent federal contract award activity

Recent contract actions with unusually large obligation changes or meaningful shifts in contractor and funding-office activity.

Modification

This action

+$610K

MAYES SEPTIC & PORT A POTS, LLC

WASHINGTON CONTRACTING OFFICE

CHOH ONPS FY25-30 TOILET PUMPING

Why it stands out

This award grew while spending attributed to its office declined.

The modification added $610K while office-attributed obligations fell $63K overall.

Award net obligations
$1.1M
Share of 12-month positive obligations
7.0%
Supporting data
Prime contractor
#1 · 7.0% share
$397K net decline despite this positive action
Funding office
#2 · 8.4% attributed share
$63K net decline despite this positive action
PIID 140P2125P0046 · Mod P00001
Base award

This action

+$340K

ROYAL FLUSH SEPTIC, LLC

NER SERVICES MABO (43000)

ACADIA NATIONAL PARK - URGENT PUMPING OF PARK SEPTIC TANKS

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #4 in this market by positive obligations over the latest 12 months.

Award net obligations
$340K
Share of 12-month positive obligations
3.9%
Supporting data
Prime contractor
#4 · 3.9% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#6 · 5.5% attributed share
up 19 ranks · +4.5 percentage points · $389K net increase; action accounted for 87.4%
PIID 140P4326P0033
Base award

This action

+$350K

TNT WASTE SERVICE LLC

IMR ARIZONA(12400)

GRAND CANYON NATIONAL PARK (GRCA; NORTH RIM) REQUIRES THE SERVICES OF SANITATION AND WATER DELIVERY. - BASE WITH OPTIONS - SERVICES TO START 10 DAYS AFTER AWARD - WEEKLY AND MONTHLY SERVICES REQUIRED - PER ATTACHED SCOPE OF SERVICES - PARK POC/

Why it stands out

The contractor climbed 6 positions in this market.

It now ranks #2 by positive obligations over the latest 12 months.

Award net obligations
$346K
Share of 12-month positive obligations
4.0%
Supporting data
Prime contractor
#2 · 6.3% share
up 6 ranks · +4.1 percentage points · $364K net increase; action accounted for 96.3%
Funding office
#5 · 5.8% attributed share
up 23 ranks · +5.0 percentage points · $430K net increase; action accounted for 81.5%
PIID 140P1526P0051
Base award

This action

+$269K

YORKSHIRE INDUSTRIES LLC

DOI, NPS CONOPS STRATEGIC

BLRI EMERGENCY PORTABLE TOILET SERVICE

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #5 in this market by positive obligations over the latest 12 months.

Award net obligations
$269K
Share of 12-month positive obligations
3.1%
Supporting data
Prime contractor
#5 · 3.1% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#10 · 3.2% attributed share
+3.2 percentage points · $269K net increase; action accounted for 100.0%
PIID 140PS126C0004
Base award

This action

+$180K

PRO PUMPING LLC

PWR SF/SEA MABO(85000)

VAULT TOILET AND SEPTIC TANK PUMPING AT YOSEMITE

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #11 in this market by positive obligations over the latest 12 months.

Award net obligations
$180K
Share of 12-month positive obligations
2.1%
Supporting data
Prime contractor
#11 · 2.1% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#1 · 9.1% attributed share
up 3 ranks · +1.7 percentage points · $164K net increase; action exceeded it by $16K
PIID 140P8526F0079
Modification

This action

+$172K

AFFIRM FITNESS L.L.C.

PWR OLYM MABO(83000)

THE PURPOSE OF THIS MODIFICATION IS EXERCISE OPT YR 2 & ENSURE COMPLIANCE WITH UPDATED FEDERAL GUIDANCE AND TO ELIMINATE NON-STATUTORY SUSTAINABILITY REQUIREMENTS, AS WELL AS ENHANCE THE REPRESENTATIONAL AND CERTIFICATION CLAUSES WITHIN THE CONTR

Why it stands out

The award grew alongside stronger office-attributed spending.

The modification added $172K while office-attributed obligations rose $199K overall.

Award net obligations
$520K
Share of 12-month positive obligations
2.0%
Supporting data
Prime contractor
#14 · 2.0% share
$46K net decline despite this positive action
Funding office
#4 · 6.6% attributed share
up 2 ranks · +2.2 percentage points · $199K net increase; action accounted for 86.2%
PIID 140P8324P0014 · Mod P00005
View recent award activity by date (10)
  1. B & B PUMPING SERVICES LLCModification · PIID 140P8223C0001
    Action+$67K
    Award net obligations$255K
  2. ADVANCED SEPTIC PROS LLCBase award · PIID 140P1326P0028
    Action+$29K
    Award net obligations$29K
  3. SLATTERY ENTERPRISES, INC.Deobligation · PIID 140P1421P0034
    Action−$9K
    Award net obligations$74K
  4. BRADY BRADSHAW LLCBase award · PIID 140P8326F0020
    Action+$40K
    Award net obligations$40K
  5. TWO-TAC LLCModification · PIID 140D0422P0208
    Action+$95K
    Award net obligations$438K
  6. BRADY BRADSHAW LLCBase award · PIID 140P8326F0018
    Action+$84K
    Award net obligations$84K
  7. PROVIZION LLCBase award · PIID 140R4026P0100
    Action+$23K
    Award net obligations$23K
  8. ALLIED PORTABLES, LLCDeobligation · PIID 140P4222P0024
    Action−$11K
    Award net obligations$32K
  9. ALLIED PORTABLES, LLCDeobligation · PIID 140P4223P0018
    Action−$351
    Award net obligations$63K
  10. MODOC SERVICES, INCDeobligation · PIID 140D0421P0084
    Action−$13K
    Award net obligations$46K

DOI septic tank and related services market FAQs

Answers based on reported federal contract data.

Who are the top DOI septic tank and related services contractors?

In the 12 months through September 10, 2026, MAYES SEPTIC & PORT A POTS, LLC, TNT WASTE SERVICE LLC, and MARIPOSA PORTABLE SANTITATION LLC were the leading DOI septic tank and related services prime contractors by positive obligations.

  1. #1

    MAYES SEPTIC & PORT A POTS, LLC

    $610,400 in positive obligations

  2. #2

    TNT WASTE SERVICE LLC

    $543,200 in positive obligations

  3. #3

    MARIPOSA PORTABLE SANTITATION LLC

    $529,373 in positive obligations

Rankings use reported USAspending award data.

Did DOI contract obligations increase in the septic tank and related services market?

Yes. Measured by net prime contract obligations, reported DOI activity in the septic tank and related services market increased 3.4% from $8,138,554 in the preceding 12 months to $8,414,456 in the 12 months through September 10, 2026.

Latest 12 months
$8,414,456
Net prime contract obligations
Preceding 12 months
$8,138,554
Net prime contract obligations
Change
+3.4%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent DOI contract award activity was reported in the septic tank and related services market?

Recent DOI contract award activity reported in the septic tank and related services market included actions for MAYES SEPTIC & PORT A POTS, LLC, ROYAL FLUSH SEPTIC, LLC, and TNT WASTE SERVICE LLC during the 12 months through September 10, 2026.

Action obligations are transaction-level amounts, not current award-level obligations.

Which procurement methods were reported for DOI contracts under NAICS 562991?

From September 11, 2025 through September 10, 2026, DOI reported 234 positive-obligation awards for septic tank and related services under NAICS 562991. The leading award type was purchase order. The leading reported procedure was simplified acquisition.

Positive-obligation awards
234
Leading reported procedure
Simplified Acquisition
79.8% of positive obligations
Leading award type
Purchase Order
75.1% of positive obligations
Full and open
0%
of positive obligations
Reported parent IDV
15.1%
of positive obligations

Percentages use positive obligations as the denominator.

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Related market research

Complete market indexes:

Same NAICS at other agencies:

Nearby NAICS at this agency:

Markets sharing leading prime records:

Reported obligations include contract actions from October 1, 2021 through September 10, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility.

Review data methodology