Balanced LA — Estudillo — 2-Week Cultivation Audit

Window 2026-07-01 → 2026-07-15 · 5 active flower rooms · substrate + climate from AROYA public API (stitched hourly, full-span) · generated 2026-07-15 19:29 UTC

Headline

Rooms audited

Facility mean dryback

22.9 pp

Facility mean VPD

1.04 kPa

Rooms w/ wide EC spread

Dryback is reported in absolute percentage points (daily VWC peak − trough), the primary crop-steering lever. Substrate (pore) EC is the steering output — its trajectory (stack early-flower → pull back in bulking → restack in ripening) matters more than any single value. Steering intent below is inferred from the data; the grower's configured targets could not be read this run (AROYA SPA session offline — see Data Quality).

Uneven zone EC flagged: B1, L3 show ≥2 mS/cm spread between substrate zones over the window — check for channeling, dripper uniformity, or mixed-cultivar zone loading. This is the strongest drip-and-drain talking point in the data.

Per-room deep dive

Each room: substrate VWC (dryback shape), pore-EC by zone (steering output + zone uniformity), VPD, and air temperature — hourly over the full 14 days.

B1 #17130

VWC mean

51.8%

min 36.5 · max 65.3

Daily dryback

24.0 pp

peak-day 28.6 pp (absolute)

Shots / day

2.3

≥2pp VWC step-ups

Substrate EC

8.2

traj 6.6→9.4 (+2.8) ⚠️ wide zone spread

VPD mean

—

kPa

Air / Soil °F

—

soil 76.5 · RH —% · CO₂ —

B2 #17131

VWC mean

35.4%

min 1.7 · max 89.2

Daily dryback

15.7 pp

peak-day 87.1 pp (absolute)

Shots / day

1.0

≥2pp VWC step-ups

Substrate EC

1.9

traj 4.5→3.7 (-0.8)

VPD mean

—

kPa

Air / Soil °F

—

soil 77.5 · RH —% · CO₂ —

L1 #17132

VWC mean

33.6%

min 1.2 · max 88.9

Daily dryback

16.8 pp

peak-day 87.1 pp (absolute)

Shots / day

0.9

≥2pp VWC step-ups

Substrate EC

2.4

traj 6.5→3.7 (-2.8)

VPD mean

—

kPa

Air / Soil °F

—

soil 77.5 · RH —% · CO₂ —

L2 #17133

VWC mean

49.9%

min 29.2 · max 68.3

Daily dryback

30.9 pp

peak-day 39.0 pp (absolute)

Shots / day

2.7

≥2pp VWC step-ups

Substrate EC

9.5

traj 9.2→10.0 (+0.8)

VPD mean

0.81

kPa

Air / Soil °F

76.3

soil 77.5 · RH 73.9% · CO₂ 1265

L3 #17134

VWC mean

45.1%

min 30.3 · max 64.4

Daily dryback

27.0 pp

peak-day 32.1 pp (absolute)

Shots / day

2.5

≥2pp VWC step-ups

Substrate EC

9.5

traj 8.6→9.5 (+0.9) ⚠️ wide zone spread

VPD mean

1.27

kPa

Air / Soil °F

74.8

soil 74.6 · RH 57.1% · CO₂ 710

Irrigation framing reference (P0–P3 day model)

P0 — Activation (lights-on → first shot; wait for transpiration to start). P1 — Ramp-up (small shots back to field capacity + first runoff). P2 — Maintenance (pulses holding VWC at FC, managing substrate EC via runoff). P3 — Dry-down (last shot → next morning; the primary steering lever, read as overnight dryback in absolute pp). Dryback benchmarks (absolute pp): veg 5–15 · early-flower/stretch 20–30 · bulking 12–18 · ripening 25–35. VPD (kPa): veg 0.8–1.1 · flower 1.0–1.4. Substrate EC (mS/cm): stacks into early flower, pulled back in bulking, restacked in ripening.

Data Quality & limitations

Source: AROYA public API room-chart endpoint, stitched into a continuous 14-day hourly series (2-day cap per request worked around). Coverage spans 2026-07-01 → 2026-07-15 for every room — full window.
Not available this run: harvest-group / cultivar metadata, per-room steering config, target ranges, and device-health — all live behind the AROYA SPA session, which was offline (expired token, no interactive login). Numbers above are measured environmental/substrate telemetry; they are not graded against the grower's configured guardrails because those could not be read.
Dryback uses a daily peak−trough absolute-pp proxy; true overnight (P3) dryback requires the lights-schedule from config. Shots/day are inferred from ≥2pp hourly VWC step-ups, not drip-volume events.
Facility ambiguity: today's "Balanced — Drip and Drain" meeting resolved to the Balanced LA org (3 active facilities); this report covers Balanced LA — Estudillo specifically. Confirm this is the site in question.