Carrier profile · USDOT 1248630 · Updated Jun 13, 2026

SIERRA WASTE SYSTEMS

11 power unitsavg 5.1 yrLocal · 1 statesPHOENIX, AZ93/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

11Power units

7 observed · MCS-150

—Trailers seen

None observed · 24 mo

5.1Avg age (yr)

2011–2023 · vPIC

Call dispatch(602) 243-6555 Email dispatchDAVE.PIERZGA@SIERRAWASTE.COM

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Clear to load

Active authority and a clean federal record. No blocking issues found.

Established 22 yearsVehicle out-of-service rate above average

Watch · 1

Vehicle out-of-service rate above average33.3% vs the 22.26% national average.

In good standing · 1

Established 22 yearsOperating authority has been on file since 2004.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo33.3%

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo33.3%

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

11 power units. Brokers price each fleet type apart.

Fleet age vs peersNewer

5.1 yr

Model years 2011–2023 · peer benchmark unavailable.

Identity stabilityStable

22 yr unchanged

Same registration since 2004 — no chameleon / reincarnation signal.

Safety

11 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 33.3%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 9 vehicle and 11 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

28.6% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 2.1 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

11 inspections in the charted months · busiest month Sep '24 · 2

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

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.

Expected band

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.5 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 11-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 11
Inspections · 24 mo: 11
Annualized: ≈6 / yr
Coverage: ≈0.5 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.

392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving10 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance8 · 0 OOS
393.47 Brake actuators / linings / componentsVehicle Maintenance4 · 0 OOS
393.53 Automatic brake adjusters / indicatorsVehicle Maintenance3 · 0 OOS
393.134 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 3 OOS
393.78 Windshield wipersVehicle Maintenance3 · 0 OOS
393.60 Windshield / glazingVehicle Maintenance2 · 0 OOS
396.9 Inspection of motor vehicles in operationVehicle Maintenance2 · 0 OOS
393.11 Required lamps/reflectors missingVehicle Maintenance1 · 0 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 11
Observed power (24 mo): 7
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

5.1 yr

Average age

2023

Newest model yr

2011

Oldest model yr

71.4%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & lanes

Revealed by inspection density across 1 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal

revealed

States observed

US states

Inspections · 24 mo

AZ busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

PHOENIX, AZ

2211 WEST ROOSEVELT

Top corridor

AZ 11

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

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 (1 truck · 1 carriers)

Across all inspections on record: USDOT 2968080

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Shared w/ other carriers

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & contact

FMCSA census + L&I dossier

Location

Physical address: 2211 WEST ROOSEVELT, PHOENIX, AZ, 85009
Operation: Intrastate (Non-Hazmat)

Contact

Phone: (602) 243-6555
Cell: (623) 764-4243
Fax: (602) 243-6543
Email: dave.pierzga@sierrawaste.com
Web domain: sierrawaste.com

Registration

Officers: Dave Pierzga · Steve Kalish
USDOT / docket: 1248630
First registered: May 17, 2004
Last MCS-150: Mar 5, 2026 · 510 mi (2020)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

510

Annual mileage

Open the full identity & federal record

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.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

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Verification summaryAuthority, insurance, safety and identity facts for SIERRA WASTE SYSTEMS.

SIERRA WASTE SYSTEMS (USDOT 1248630) has a Vektor safety score of 93/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

Its vehicle out-of-service rate was 33.3% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 11 roadside inspections in the last 24 months — 9 vehicle-level and 11 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.

It reports 11 power units and 12 drivers in its most recent MCS-150 filing dated Mar 5, 2026.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 13, 2026.

Frequently asked

What is SIERRA WASTE SYSTEMS's USDOT number?

SIERRA WASTE SYSTEMS's USDOT number is 1248630.

Is SIERRA WASTE SYSTEMS authorized to operate?

As of Jun 13, 2026, SIERRA WASTE SYSTEMS is active in the FMCSA register.

What is SIERRA WASTE SYSTEMS's safety record?

SIERRA WASTE SYSTEMS has a 33.3% vehicle out-of-service rate (national average 22.26%) across 19 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 93/100 (tier: clear).