What is the address of Littlestown STP?

The address on the plant’s EPA facility record is Whitehall Rd, Littlestown, PA 17340, in Adams County. Its coordinates are 39.7550, -77.0926. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Littlestown STP treat?

Littlestown STP is permitted for a design flow of 1 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Littlestown STP use?

Klarifi has identified 2 treatment structures and unit processes at the Littlestown facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Littlestown STP?

The facility discharges under NPDES permit PA0021229, currently effective, expiring August 2030.

Is Littlestown STP in compliance?

Discharge monitoring reports show 4 violations at Littlestown STP in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Littlestown STP and how do I contact them?

Littlestown STP is a publicly owned treatment works in Littlestown, Pennsylvania. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Littlestown STP

Whitehall Rd, Littlestown, PA 17340 · Adams County · Publicly Owned Treatment Works

Average flow: —

Design flow: 1 MGD

NPDES permit: PA0021229; Effective

Permit expires: August 2030

Population served: 6,051; CWNS 2022

Littlestown STP is a publicly owned wastewater treatment works in Littlestown, Adams County, Pennsylvania, serving about 6,051 residents. It discharges under NPDES permit PA0021229 (effective), which expires in August 2030, with 4 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Littlestown STP.

Available with a free Klarifi account

See the full treatment train at Littlestown STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 4

Effluent violations: 2

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

2 verified contacts for Littlestown STP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Littlestown STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Pennsylvania

Hanover Boro STP

Mcsherrystown · 5 mi away

4 MGD

Bonneauville STP

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0.23 MGD

White Run STP

Gettysburg · 6 mi away

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Penn Twp STP

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New Oxford Municipal Authority WWTP

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Berwick Twp STP

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Cumberland Twp South STP

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Hunterstown STP

Hunterstown · 10 mi away

0.08 MGD

Littlestown STP: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed October 12, 2026; facility record last updated May 25, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms

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