Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
LEHIGH SOUTHWEST CEMENT COMPANY
Quick Summary
- •Released 43,688 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $501,810 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
24001 STEVENS CREEK BLVD
CUPERTINO, CA 95014
View on map ↗ - County
- SANTA CLARA County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 327310
- Inspections
- 4 · last Jun 20, 2025
- Total Penalties
- $501,810 · last Oct 21, 2025
- Registry ID
- 110000484039
How This Compares
#41
of 996 TRI reporters in CA
#1,823
of 16,877 TRI reporters in Manufacturing
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
12
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
6
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2022)
-100% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 80,935 | — |
| 2016 | 56,081 | -31% |
| 2017 | 43,688 | -22% |
| 2018 | 45,543 | +4% |
| 2019 | 104 | -100% |
| 2020 | 1,720 | +1561% |
| 2021 | 0 | -100% |
| 2022 | 0 | +6% |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead compounds | 0 | 0 | — | — | — | |
| Mercury compounds | 0 | 0 | 0 | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead compounds | 0 | 0 | — | — | — | |
| Mercury compounds | 0 | 0 | 0 | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1,625 | 1,625 | — | — | — | |
| Manganese compounds | 34 | 34 | — | — | — | |
| Nickel compounds | 30 | 21 | 9 | — | — | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 19 | 18 | 0 | — | — | |
| Mercury compounds | 11 | 11 | 0 | — | — | |
| Lead compounds | 2 | 2 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Manganese compounds | 93 | 93 | — | — | — | |
| Lead compounds | 10 | 10 | — | — | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 44,822 | 44,822 | — | — | — | |
| Nickel compounds | 394 | 83 | 311 | — | — | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 123 | 78 | 46 | — | — | |
| Manganese compounds | 105 | 105 | — | — | — | |
| Mercury compounds | 69 | 69 | 0 | 0 | — | |
| Lead compounds | 30 | 30 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 39,100 | 39,100 | — | — | — | |
| Nickel compounds | 3,541 | 33 | 3,408 | 99 | — | ♦ Carcinogen |
| Lead compounds | 420 | 28 | — | 393 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 408 | 26 | 382 | — | — | |
| Mercury compounds | 149 | 148 | 0 | 1 | — | |
| Manganese compounds | 70 | 70 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 42,049 | 42,049 | — | — | — | |
| Nickel compounds | 11,996 | 30 | 2,319 | 9,647 | — | ♦ Carcinogen |
| Lead compounds | 1,236 | 30 | — | 1,206 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 464 | 21 | 442 | — | — | |
| Mercury compounds | 264 | 148 | 0 | 116 | — | |
| Manganese compounds | 72 | 72 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 41,160 | 41,160 | — | — | — | |
| Nickel compounds | 36,594 | 40 | 1,949 | 34,605 | — | ♦ Carcinogen |
| Lead compounds | 2,438 | 15 | — | 2,424 | — | |
| Mercury compounds | 570 | 147 | 6 | 417 | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 172 | 30 | 143 | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Effluent Violations - Unauthorized Discharge | Jan 14, 2023 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Jan 5, 2023 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 29, 2022 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Jan 26, 2021 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Mar 18, 2020 | — | Open |
| caa | HPV | Jun 3, 2019 | May 11, 2020 | Resolved |
| caa | HPV | Mar 14, 2019 | Jan 30, 2020 | Resolved |
| caa | HPV | Mar 14, 2019 | Jan 30, 2020 | Resolved |
| caa | FRV | Mar 14, 2019 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Dec 26, 2018 | Dec 27, 2018 | Resolved |
| caa | FRV | Aug 29, 2018 | — | Open |
| caa | FRV | Aug 29, 2018 | — | Open |
| caa | HPV | Aug 29, 2018 | Jan 30, 2020 | Resolved |
| caa | HPV | Jul 24, 2018 | Jan 30, 2020 | Resolved |
| cwa | Effluent Violations - Unauthorized Discharge | May 8, 2018 | May 9, 2018 | Resolved |
| caa | HPV | Aug 3, 2017 | Apr 26, 2018 | Resolved |
| caa | HPV | Jan 12, 2017 | Apr 26, 2018 | Resolved |
| caa | HPV | Nov 1, 2016 | Apr 26, 2018 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, settleable | DMR, Limited - Overdue | 0.00 mg/L | 0.00 | +100% | Jun 2022 | Resolved |
| Solids, settleable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +100% | Jun 2022 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +83% | Dec 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 140.00 mg/L | 50.00 | +180% | Dec 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.00 | +639% | Sep 2017 | Resolved |
| Nickel, total recoverable | DMR, Limited - Numeric Violation | 0.30 mg/L | 0.16 | +87% | Sep 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.01 | +573% | Sep 2017 | Open |
| Nickel, total recoverable | DMR, Limited - Numeric Violation | 0.16 mg/L | 0.08 | +94% | Sep 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.00 | +385% | Aug 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.01 | +216% | Aug 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,048.00 mg/L | 1,000.00 | +5% | Jul 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.00 | +471% | Jul 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.01 | +237% | Jul 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +151% | Jun 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,200.00 mg/L | 1,000.00 | +20% | Jun 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.00 | +712% | Jun 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +13% | May 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.01 | +420% | May 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,096.00 mg/L | 1,000.00 | +10% | May 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.00 | +910% | May 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +125% | May 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.00 | +932% | Apr 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +138% | Apr 2017 | Open |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,175.00 mg/L | 1,000.00 | +18% | Apr 2017 | Resolved |
| Nickel, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.08 | +23% | Apr 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.01 | +421% | Apr 2017 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +88% | Apr 2017 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,200.00 mg/L | 1,000.00 | +20% | Mar 2017 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,700.00 mg/L | 340.00 | +400% | Mar 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.00 | +900% | Mar 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +63% | Mar 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.05 mg/L | 0.01 | +513% | Mar 2017 | Open |
| Nickel, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.08 | +26% | Mar 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +138% | Mar 2017 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 430.00 mg/L | 340.00 | +26% | Mar 2017 | Resolved |
| Nickel, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.08 | +16% | Feb 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.01 | +643% | Feb 2017 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +13% | Feb 2017 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +88% | Feb 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.00 | +1,244% | Feb 2017 | Resolved |
| Solids, total dissolved | DMR, Limited - Numeric Violation | 1,240.00 mg/L | 1,000.00 | +24% | Feb 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +141% | Jan 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +125% | Jan 2017 | Resolved |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +44% | Jan 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +33% | Jan 2017 | Open |
| Chromium, hexavalent [as Cr] | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +24% | Dec 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.00 | +544% | Dec 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.01 | +250% | Dec 2016 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +224% | Nov 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +77% | Nov 2016 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA455254 · Mar 19, 2024
$1,500
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA454670 · Oct 2, 2023
$300,310
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA448309 · Nov 17, 2022
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA443743 · Jun 14, 2021
$60,000
Judicial
· Case 09-2010-0503 · Nov 18, 2020
$307,004
Administrative - Formal
Clean Air Act
· Case 3602183244 · May 11, 2020
$7,500
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA433401 · Feb 4, 2020
$6,000
Administrative - Formal
Clean Air Act
· Case 3602203577 · Jan 30, 2020
$7,500
Administrative - Formal
Clean Air Act
· Case 3602183247 · Jan 30, 2020
$2,500
Administrative - Formal
Clean Air Act
· Case 3602203570 · Jan 30, 2020
$2,500
Administrative - Formal
Clean Air Act
· Case 3602203583 · Jan 30, 2020
$2,000
Administrative - Formal
Clean Air Act
· Case 3602203592 · Jan 30, 2020
$2,000
Administrative - Formal
Clean Air Act
· Case 3602203605 · Jan 30, 2020
$6,000
Notice of Violation
Clean Air Act
· Case 3602183243 · Jun 3, 2019
State CWA Penalty AO
Clean Water Act
· Case CA-CFEA428523 · May 21, 2019
Notice of Violation
Clean Air Act
· Case 3602183246 · Mar 14, 2019
Notice of Violation
Clean Air Act
· Case 3602183249 · Mar 14, 2019
Notice of Violation
Clean Air Act
· Case 3602203590 · Aug 29, 2018
Notice of Violation
Clean Air Act
· Case 3602203581 · Aug 29, 2018
Notice of Violation
Clean Air Act
· Case 3602203603 · Aug 29, 2018
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