Fleet typeIdentity
Small fleet
17 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 693501 · MC-924851
ENVIRONMENTAL MAINTENANCE SERVICES INC
DBA BIOSERV
17 power unitsavg 6.1 yrRegional · 4 statesPROSPECT, CT
CARRIER ACTIVEMC-924851 ACTIVERATED SATISFACTORYHAZMAT
Observed fleet · trailing 24 mo daily
17Power units
8 observed · MCS-150
—Trailers seen
None observed · 24 mo
6.1Avg age (yr)
2014–2024 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-07-26
Clear to load
Active authority and a clean federal record. No blocking issues found.
Active operating authorityInsurance on file
Watch · 0
Nothing flagged.
In good standing · 4
Active operating authorityActive for-hire authority is on file with FMCSA.Insurance on fileBIPD (liability) insurance is on file with FMCSA.Established 29 yearsOperating authority has been on file since 1997.Out-of-service rates below national averageBoth vehicle and driver OOS rates beat the national benchmark across 25 inspections.
Operating authority2929 yr active
since 1997Insurance (BIPD)On file
FMCSA L&IVehicle OOS · 24mo7.77.7 %
▼ 22.26% nat'lCrashes · fatal00
clean 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersTypical
6.1 yr
Model years 2014–2024 · peer benchmark computing.
Identity stabilityStable
29 yr unchanged
Same registration since 1997 — no chameleon / reincarnation signal.
AI readFull read
Is ENVIRONMENTAL MAINTENANCE SERVICES INC safe to work with?
Is ENVIRONMENTAL MAINTENANCE SERVICES INC safe to load? ENVIRONMENTAL MAINTENANCE SERVICES INC (USDOT 693501, MC-924851) is an active small-fleet motor carrier based in PROSPECT, CT, operating 17 power units and 15 drivers. Operating authority has been active 29 years (past the 24-month broker-confidence threshold). Across 25 roadside inspections, its vehicle out-of-service rate is 7.7% (below the 22.26% national average), with 0 reportable crashes in the last 24 months. FMCSA rates it Satisfactory. Vektor rates it clear to load (100/100). Source: FMCSA SAFER/MCMIS, last updated 2026-07-26.
FMCSA fields + Vektor analysis · updated 2026-07-26
EMENVIRONMENTAL MAINTENANCE SERVICES INC 100
01
Safety
25 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 7.7% (24-mo)13 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 5.3% (24-mo)19 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
0.0% now▲ Worsening
Inspection coverage· expected vs observed · the fraud signal
Inspection coverage
How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.6 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 17-unit fleet — enough signal to read the safety record, though not a heavy sample.
- Registered power units
- 17
- Inspections · 24 mo
- 19
- Annualized
- ≈10 / yr
- Coverage
- ≈0.6 inspections / unit · yr
Violation themes· decoded · grouped by BASIC
What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.
- 393.9 Inoperative required lampsVehicle Maintenance7
- 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving6
- 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance3
- 393.78 Windshield wipersVehicle Maintenance2
- 391.41 No / expired medical certificateDriver Fitness2 · 1 OOS
- 396.3 Inspection / repair / maintenance not performedVehicle Maintenance1
- 393.25 Lighting device requirementsVehicle Maintenance1
- 393.41 Parts & accessories (vehicle condition)Vehicle Maintenance1 · 1 OOS
- 393.45 Brake tubing / hose defectsVehicle Maintenance1
02
Authority & insurance
Can they legally + adequately haul your load?
Operating authority· 49 CFR · per type
Operating authority
- Common
- Active
- Contract
- None
- Broker
- None
Insurance & bonds
BIPD / liability (required)Filed with FMCSA
CargoNone
Surety bond (BMC-84)None
Insurance continuity· insurer · policy · lapses
$1M BIPD · 3 insurers · 0 lapsesContinuous
Plaza · 15–17
Arch · 17–22
Key Risk · 22–25
20152025
No BIPD policy is currently in force in the filing history. The authority record may still list one on file — request a COI to confirm current coverage.
3 insurer eras · collapsed from 10 filings
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| KEY RISK INSURANCE COMPANY | May 2022 → May 2025 | $1M | 3 |
| ARCH INSURANCE COMPANY | May 2017 → May 2022 | $1M | 6 |
| PLAZA INSURANCE COMPANY | May 2015 → May 2017 | $1M | 1 |
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 17
- Observed power (24 mo)
- 8
- Trailers (towed)
- 0
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2024
Newest model yr
2014
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 4 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusRegional
revealedStates observed44
US statesInspections · 24 mo1919
NY busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
PROSPECT, CT
Top corridor
NY ⇄ CT
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
No shared-VIN flow in the last 12 months
None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (2 trucks · 1 carriers)
Across all inspections on record: USDOT 3097447
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)1717
Observed (24 mo)88
Shared w/ other carriers22
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- 10 GRAMAR AVENUE, PROSPECT, CT, 06712
- Operation
- Interstate· Hazmat
Contact
- Phone
- (203) 758-5550
- Fax
- (203) 758-5533
- Web domain
- bioservusa.com
Registration
- Officer
- Richard A Ragaini
- USDOT / docket
- 693501 · MC-924851
- First registered
- 06/11/1997
- Last MCS-150
- 12/17/2025 · 415,685 mi (2024)
- FMCSA safety rating
- Satisfactory · 12/31/2002
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
—CDL drivers
07
Federal activity
Daily-captured FMCSA licensing & insurance changes — monitored by Vektor
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
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Leave a review09
Frequently asked
What is ENVIRONMENTAL MAINTENANCE SERVICES INC's USDOT number?
ENVIRONMENTAL MAINTENANCE SERVICES INC's USDOT number is 693501, and its motor carrier number is MC-924851.
Is ENVIRONMENTAL MAINTENANCE SERVICES INC authorized to operate?
As of 2026-07-26, ENVIRONMENTAL MAINTENANCE SERVICES INC is active in the FMCSA register with common, contract, broker operating authority on file.
What is ENVIRONMENTAL MAINTENANCE SERVICES INC's safety record?
ENVIRONMENTAL MAINTENANCE SERVICES INC has a 7.7% vehicle out-of-service rate (national average 22.26%) across 25 roadside inspections, with 0 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 100/100 (tier: clear).
How big is ENVIRONMENTAL MAINTENANCE SERVICES INC's fleet?
ENVIRONMENTAL MAINTENANCE SERVICES INC operates 17 power units and 15 drivers per its most recent MCS-150 filing.
Where is ENVIRONMENTAL MAINTENANCE SERVICES INC based?
ENVIRONMENTAL MAINTENANCE SERVICES INC is based in PROSPECT, CT, with roadside inspections recorded across 4 states.