SIERRA FRAC SAND LLC - CEDAR BLUFF PLANT
NPDES ID: LAG490201
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
November 30, 2025
pH
0% over limit
Discharged 5.55 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
September 30, 2025
pH
0% over limit
Discharged 5.98 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
August 31, 2025
pH
0% over limit
Discharged 5.79 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
June 30, 2025
Oil & Grease
0% over limit
Discharged 0 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Turbidity
0% over limit
Discharged 0 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
May 31, 2025
pH
0% over limit
Discharged 6.15 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 12 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.15 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 2.3 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 12 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Turbidity
0% over limit
Discharged 8.97 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 2.1 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
April 30, 2025
pH
0% over limit
Discharged 6 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Turbidity
0% over limit
Discharged 4.24 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.35 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 11 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.4 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 9.5 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
February 28, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.3 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.1 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
Turbidity
0% over limit
Discharged 7.99 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 3.03 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 6 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 10.6 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
December 31, 2024
pH
0% over limit
Discharged 5.99 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
October 31, 2024
pH
0% over limit
Discharged 5.53 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
pH
0% over limit
Discharged 5.98 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 5.98 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 5 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Turbidity
0% over limit
Discharged 5.16 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 11 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.2 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
August 31, 2024
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.1 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.4 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 9 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
Turbidity
0% over limit
Discharged 6.58 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 5.94 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 5.94 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 8 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
July 31, 2024
Oil & Grease
0% over limit
Discharged 5 mg/L against a permitted limit of 15 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 9 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 15 mg/L against a permitted limit of 45 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.3 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 14 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Turbidity
0% over limit
Discharged 4.63 NTU against a permitted limit of 25 NTU (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.06 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 3.1 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)