Fig. 20. Stream Quality Index Map
The Stream Quality Index (SQI) combines biological, physical, and chemical data to provide an overall picture of stream quality. The SQI assigns stream sites to one of four condition categories: healthy and unstressed, healthy and resilient, impacted by unknown stress, or impacted and stressed. These categories are based on empirical stressor-response models that describe the likelihood of biological alteration with observed chemistry and habitat stressors. All data used to calibrate and validate the tool are from the Southern California Stormwater Monitoring Coalition (SMC) regional watershed monitoring program in coastal southern California, which includes data from the Surface Water Ambient Monitoring Program.
This is a copy of the file available for download on the SQI dashboard. Download the data from the dashboard for the most recent data.
Data dictionary
Field definitions supplied by the publishing agency in CKAN.
| Column | Type | Label | Description |
|---|---|---|---|
| MasterID | text | MasterID | — |
| yr | numeric | yr | — |
| COMID | text | COMID | — |
| pChem | numeric | pChem | — |
| pHab | numeric | pHab | — |
| pOverall | numeric | pOverall | — |
| biological_condition | text | biological_condition | — |
| stress_condition | text | stress_condition | — |
| SQI | text | SQI | — |
| County | text | County | — |
| SMC_region | text | SMC_region | — |
| Regional_board | text | Regional_board | — |
| Constraint_class | text | Constraint_class | — |
| ASCI | numeric | ASCI | — |
| blc | numeric | blc | — |
| bs | numeric | bs | — |
| Cond | numeric | Cond | — |
| CSCI | numeric | CSCI | — |
| Ev_FlowHab | numeric | Ev_FlowHab | — |
| H_AqHab | numeric | H_AqHab | — |
| H_SubNat | numeric | H_SubNat | — |
| hy | numeric | hy | — |
| CRAM | numeric | CRAM | — |
| IPI | numeric | IPI | — |
| PCT_SAFN | numeric | PCT_SAFN | — |
| ps | numeric | ps | — |
| TN | numeric | TN | — |
| TP | numeric | TP | — |
| XCMG | numeric | XCMG | — |
| lon | numeric | lon | — |
| lat | numeric | lat | — |
| ASCI_ptile | numeric | ASCI_ptile | — |
| blc_ptile | numeric | blc_ptile | — |
| bs_ptile | numeric | bs_ptile | — |
| Cond_ptile | numeric | Cond_ptile | — |
| CRAM_ptile | numeric | CRAM_ptile | — |
| CSCI_ptile | numeric | CSCI_ptile | — |
| Ev_FlowHab_ptile | numeric | Ev_FlowHab_ptile | — |
| H_AqHab_ptile | numeric | H_AqHab_ptile | — |
| H_SubNat_ptile | numeric | H_SubNat_ptile | — |
| hy_ptile | numeric | hy_ptile | — |
| IPI_ptile | numeric | IPI_ptile | — |
| PCT_SAFN_ptile | numeric | PCT_SAFN_ptile | — |
| ps_ptile | numeric | ps_ptile | — |
| TN_ptile | numeric | TN_ptile | — |
| TP_ptile | numeric | TP_ptile | — |
| XCMG_ptile | numeric | XCMG_ptile | — |
Resource details
| Format | CSV |
|---|---|
| Size | 154 KB |
| Rows | 267 |
| Last updated | Sep 29, 2026 |
| Part of | 2019 California Water Quality Status Report |
Other resources in this dataset
- Fig. 1. California's Groundwater
- Fig. 2. 1,2,3,-Trichloropropane
- Fig. 3. Toxicity and Urban Land Use
- Fig. 4-5. Sum Pyrethroid Toxic Units
- Fig. 7. Elk River Sediment Loads
- Fig. 10. FHABs Illnesses by County (2018)
- Fig. 11. Sampling stations for long-term bass lake monitoring.
- Fig. 18. Mayfly Occurrence Data
CKAN Data API
Access resource data through the CKAN DataStore API. The examples below use this resource's ID.
Endpoints
The Data API provides these actions. Creating or updating records requires appropriate permissions; the query actions read public DataStore records.
| Create | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_create |
|---|---|
| Update / insert | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_upsert |
| Query | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search |
| Query via SQL | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search_sql |
Query examples
"https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=62a9a483-d90e-4aec-8592-5195adc865db&limit=5""https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=62a9a483-d90e-4aec-8592-5195adc865db&q=jones""https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search_sql?sql=SELECT%20%2A%20FROM%20%2262a9a483-d90e-4aec-8592-5195adc865db%22%20LIMIT%205"SQL queries depend on whether SQL search is enabled by the portal.
OData query
Use the resource's OData URL and its field names for paging, selecting columns, or filtering rows.
ODATA_RESOURCE_URL?$top=5
ODATA_RESOURCE_URL?$skip=5&$top=5
ODATA_RESOURCE_URL?$select=FIELD_NAME&$filter=FIELD_NAME eq 'VALUE'Replace ODATA_RESOURCE_URL, FIELD_NAME, and VALUE with the details for the selected resource. See the OData query options guide (opens in a new tab) for more examples.
Use the API in code
JavaScript (JSONP)
var data = { resource_id: '62a9a483-d90e-4aec-8592-5195adc865db', limit: 5, q: 'jones' };
$.ajax({
url: 'https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search',
data: data,
dataType: 'jsonp',
success: function (response) {
console.log(response.result.total, response.result.records);
}
});Python
import json
from urllib.request import urlopen
url = 'https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=62a9a483-d90e-4aec-8592-5195adc865db&limit=5'
with urlopen(url) as response:
result = json.load(response)['result']
print(result['total'], result['records'])For parameters and response fields, see the CKAN DataStore documentation (opens in a new tab).