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Sanitary sewer overflow (SSO) reported — Calvert County DPW, Jul 14, 2026

Ended (as reported) · Calvert County DPW

Source: Calvert County DPW via MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u), record md2178e89-20260714T0000-500-sweetwater-rd, updated by the source Nov 2, 2026, 10:55 AM EST, retrieved 2026-11-03 02:31 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: Calvert County DPW. Outlet: “500 Sweetwater Rd.”. Location: not given in the report or in the outlet records.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names: “n/a (the SSO was contained within the facility ground)”. Not linked to a mapped water.

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started

Jul 14, 2026, 12:00 AM EDT

Ended

Jul 14, 2026, 6:00 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

not given

Published

not given

Source last updated

Nov 2, 2026, 10:55 AM EST

Last retrieved by DirtyWaterWatch

2026-11-03 02:31 UTC

What and how much

Type

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

not stated

Volume

2,000 gallons (not stated whether estimated or measured)

Volume as reported

“2000 gallons”

Advice from Calvert County DPW

This report includes no advice. Check current local health notices.

Advice period

This report does not state a period. See the rule DirtyWaterWatch applies and its source.

Basis

not stated

Source and versions

Source

MDE Reported Sewer Overflows (New for 2023), Maryland Open Data Portal (Socrata stgj-u72u)

Source record number

md2178e89-20260714T0000-500-sweetwater-rd

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "row": {
    "overflow_type": "Unauthorized Discharge",
    "facility_collection_system": "Solomons Island WWTP",
    "npdes_no": "MD2178E89",
    "start_date": "07/14/2026",
    "start_time": "00:00:00",
    "duration_day": "0",
    "duration_hour": "6",
    "duration_minute": "0",
    "overflow_address": "500 Sweetwater Rd.",
    "zip": "20657",
    "owner_name": "Calvert County DPW",
    "discharge_volume": "2000",
    "overflow_cause": "operator error",
    "receiving_water": "n/a (the SSO was contained within the facility ground)",
    "county": "Calvert",
    "penalty_id": "",
    "overflow_latitude": "",
    "overflow_longitude": "",
    "id": "232"
  },
  "_source_type": "Unauthorized Discharge",
  "_ended_at_basis": "start + duration_day/hour/minute",
  "_coords": "no coordinates",
  "_water": {
    "why_none": "no Maryland water record matched the name"
  },
  "_discharger_basis": "owner name",
  "_first_seen_at": "2026-11-03T02:28:49Z"
}