C S BIO CO
Quick Summary
- •Released 390 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 $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
20 KELLY CT
MENLO PARK, CA 94025
View on map ↗ - County
- SAN MATEO County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325412
- Inspections
- 4 · last May 23, 2025
- Total Penalties
- $0
- Registry ID
- 110002790141
How This Compares
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.
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.
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 1,010 | — |
| 2016 | 8,929 | +784% |
| 2017 | 390 | -96% |
| 2018 | 126 | -68% |
| 2019 | 188 | +49% |
| 2020 | 58 | -69% |
| 2021 | 77 | +34% |
| 2022 | 18 | -76% |
| 2023 | 6 | -65% |
| 2024 | 1 | -78% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 1 | 1 | — | — | 2,560 | |
| N,N-Dimethylformamide | 0 | 0 | — | — | 3,360 | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 5 | 5 | — | — | 11,600 | |
| N,N-Dimethylformamide | 1 | 1 | — | — | 33,768 | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 14 | 14 | — | — | 30,600 | |
| N,N-Dimethylformamide | 4 | 4 | — | — | 118,332 | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 61 | 61 | — | — | 71,542 | |
| N,N-Dimethylformamide | 17 | 17 | — | — | 238,574 | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Dichloromethane | 50 | 50 | — | — | 34,375 | ♦ Carcinogen |
| Acetonitrile | 5 | 5 | — | — | 52,960 | |
| N,N-Dimethylformamide | 3 | 3 | — | — | 256,193 | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Dichloromethane | 127 | 127 | — | — | 77,539 | ♦ Carcinogen |
| Acetonitrile | 61 | 61 | — | — | 91,590 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Dichloromethane | 115 | 115 | — | — | 87,530 | ♦ Carcinogen |
| Acetonitrile | 7 | 7 | — | — | 46,446 | |
| N,N-Dimethylformamide | 4 | 4 | — | — | 358,490 | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acetonitrile | 286 | 286 | — | — | 27,013 | |
| Dichloromethane | 103 | 103 | — | — | 51,000 | ♦ Carcinogen |
| N,N-Dimethylformamide | 1 | 1 | — | — | 188,803 | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N,N-Dimethylformamide | 7,929 | 7,929 | — | — | 237,145 | ♦ Carcinogen |
| Dichloromethane | 500 | 500 | — | — | 67,440 | ♦ Carcinogen |
| Acetonitrile | 500 | 500 | — | — | 45,920 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| N,N-Dimethylformamide | 500 | 500 | — | — | 58,608 | ♦ Carcinogen |
| Dichloromethane | 255 | 255 | — | — | 18,522 | ♦ Carcinogen |
| Acetonitrile | 255 | 255 | — | — | 44,323 |
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 |
|---|---|---|---|---|
| Acetonitrile | — | 2,560 | — | — |
| N,N-Dimethylformamide | — | 3,360 | — | — |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
PACIFIC RESOURCE RECOVERY SERVICES INC
LOS ANGELES, CA
|
Acetonitrile | — | 2,560 | — | — |
|
PACIFIC RESOURCE RECOVERY SERVICES INC
LOS ANGELES, CA
|
N,N-Dimethylformamide | — | 3,360 | — | — |
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 |
|---|---|---|---|---|
| rcra | Standards Applicable to Generators of HW: General | Jul 11, 2024 | Jul 23, 2024 | Resolved |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jul 11, 2024 | Jul 23, 2024 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 27, 2023 | May 29, 2024 | Resolved |
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.