| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | administrative | reporting | mandatory | CIWQS Account Registration | wastewater, other | In order to submit information to the Water Boards via CIWQS, users must register for an account. | When submitting information to the Water Boards via CIWQS | high |
| #Q002 | reporting | reporting | guidance | SMARTS Annual Report Submittal | other | Enrollees under the statewide general industrial stormwater permit can submit annual reports to the Stormwater Multi-Application, Reporting, and Tracking System (SMARTS). | Applies to enrollees under the statewide general industrial stormwater permit | high |
| #Q003 | operational | operational | guidance | Monitoring Schedule Access Procedure | drinking water | To access, go to the Drinking Water Watch website, enter the Water System Number or the Water System Name for which you would like to search and click the ‘Search For Water Systems’ button. You will then arrive at the ‘Water System Details’ page. On the left-hand side of the page, click the ‘Monitoring Schedules’ link to arrive at the ‘Monitoring Schedules’ page. | When accessing drinking water monitoring schedules via the Drinking Water Watch website | high |
| #Q004 | operational | operational | recommended | Data Import Recommendation | drinking water | For the Water Quality files available below, it is recommended that you copy the files into a folder on your drive and import into most well know database software programs, such as Microsoft Access, FoxPro, or Paradox. | When handling downloaded water quality database files | high |
| #Q005 | operational | operational | recommended | Data Interpretation Precaution | drinking water | Care should be taken in interpreting the data. | When interpreting water quality contaminant detection data | high |
| #Q006 | administrative | reporting | recommended | Contaminant Inquiry Protocol | drinking water | Questions about contaminants in particular sources are best addressed by the specific public water system, or by the associated DDW District Office. | When seeking clarification on contaminants in specific water sources | high |
| #Q007 | operational | operational | mandatory | Access File Delimiter Setting | drinking water | If using Access to open these files, ensure that the delimiter is set to "tab". | When using Microsoft Access to open SDWIS .TAB files | high |
| #Q008 | operational | operational | recommended | Access File Linking Recommendation | drinking water | due to the size of these files, it is recommended that the files be "linked" instead of "imported" into Access in order to prevent the application from crashing. | When opening large SDWIS .TAB files in Microsoft Access | high |
| #Q009 | administrative | reporting | guidance | NPDES and SSO CIWQS Submittal Permissions | wastewater | Currently, individual National Pollutant Discharge Elimination System permit holders and enrollees under the statewide general sanitary sewer overflow (SSO) order may be able to submit information to CIWQS. | Applicable to individual NPDES permit holders and enrollees under the statewide general SSO order. | high |
| #Q010 | administrative | unknown | mandatory | Regulation Adoption Mandate | other | California Water Code section 13558 requires the State Water Board to adopt regulations on or before December 1, 2022, for risk-based water quality standards for the onsite treatment and reuse of nonpotable water for nonpotable end uses in multifamily residential, commercial, and mixed-use buildings. | high | |
| #Q011 | design | treatment | mandatory | Building Standards Development Mandate | other | Water Code section 13558 also requires that on or before December 1, 2023, the Department of Housing and Community Development, in consultation with the State Water Board, is required to develop and propose for adoption any necessary corresponding building standards to support the risk-based water quality standards established by the State Water Board. | Consultation with State Water Board is required | high |
| #Q012 | operational | operational | mandatory | Existing System Compliance Deadline | other | Existing onsite treated nonpotable water systems in operation before the effective date of the regulations will be required to comply with the regulations within two years of the effective date. | Systems in operation before April 22, 2026 | high |
| #Q013 | administrative | reporting | mandatory | Mailing List Subscription Confirmation | other | After subscribing, you will need to check your email host for a confirmation email to complete the subscription. | When subscribing to the Drinking Water Onsite Non-potable Reuse email list | high |
| #Q014 | reporting | reporting | mandatory | Timely Notification Level Exceedance Notice | drinking water | State law (Health and Safety 116455) requires timely notification by drinking water systems whenever a notification level is exceeded in drinking water that is provided to consumers. | When a notification level is exceeded in provided drinking water | high |
| #Q015 | reporting | reporting | mandatory | Wholesale Water System Notification | drinking water | wholesale water systems, who must notify their governing bodies and the water systems that are directly supplied with that drinking water. | When notification level is exceeded | high |
| #Q016 | reporting | reporting | mandatory | Retail Water System Notification | drinking water | retail water systems, who must notify their governing bodies and the governing bodies of any local agencies (i.e., city or county, or a city and county) whose jurisdictions include areas supplied with their drinking water. | When notification level is exceeded | high |
| #Q017 | reporting | reporting | mandatory | PFAS Response Level CCR Reporting | drinking water | When a confirmed detection exceeds the response level, a community water system or a nontransient noncommunity public water system is required to: report that detection in the water system's annual consumer confidence report. | Confirmed detection of PFAS exceeding response level | high |
| #Q018 | corrective_action | treatment | mandatory | PFAS Response Level Corrective Action | drinking water | take a water source where detected levels exceed the response level out of use or provide public notification (as specified in Health and Safety 116378) within 30 days of the confirmed detection. | Confirmed detection of PFAS exceeding response level | high |
| #Q019 | reporting | reporting | recommended | Notification Level Customer Informing Recommendation | drinking water | If a chemical concentration is greater than its notification level in drinking water that is provided to consumers, DDW recommends that the utility inform its customers and consumers about the presence of the chemical, and about health concerns associated with exposure to it. | Chemical concentration greater than notification level | high |
| #Q020 | reporting | reporting | mandatory | PFAS Order Monitoring Reporting | drinking water | if any monitoring undertaken pursuant to an order issued under section 116378 results in a confirmed detection of PFAS for any analyte tested for per order, the water system shall report the detection in the water system's annual Consumer Confidence Report. | Monitoring pursuant to Health and Safety Code section 116378 results in confirmed detection | high |
| #Q021 | operational | treatment | mandatory | PFAS Response Level Action Options | drinking water | where detected levels of a substance exceed the response level (i.e. PFOA and PFOS), Health and Safety Code 116378 requires the public water system issued the Order, the water system shall either (1) take the source out of service immediately; (2) utilize treatment or blending (see question below for details); or (3) provide public notification of the response level exceedance within 30 days of being notified by the laboratory of the exceedance to take the water source out of use or provide public notification within 30 days of the confirmed detection. | PFAS detection exceeds response level under Order | high |
| #Q022 | operational | operational | mandatory | PFAS Response Level Calculation Method | drinking water | To determine whether monitoring shows an exceedance of a response level, the water system must calculate a quarterly running annual average (QRAA). | Monitoring for PFAS response level compliance | high |
| #Q023 | monitoring | operational | recommended | Post-Exceedance Monitoring and Notification | drinking water | Thereafter, DDW recommends the following: (1) Monthly sampling and analysis of the drinking water supply for as long as the contaminant exceeds its response level, and quarterly sampling for 12 months, should the concentration drop below the response level. (2) Quarterly notification of the water system's customers and other water consumers for as long as the contaminant is present at a concentration greater than its response level, using the methods described above. | When a source is kept in service despite exceeding response level | high |
No quantitative requirements.
No definitions.